composer.json - bump version

Details: https://github.com/phingofficial/phing/issues/716

.docker/config/Dockerfile

@@ -0,0 +1,64 @@
+FROM php:5.5-cli
+
+#
+# Tools & libraries
+#
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+        vim \
+        git \
+        zip \
+        unzip \
+        zlib1g-dev \
+        libicu-dev \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+#
+# PHP extensions
+#
+RUN docker-php-ext-install \
+    zip \
+    intl \
+    mbstring
+
+#
+# PHP configuration:
+# - default configuration
+# - timezone
+#
+COPY php.ini /usr/local/etc/php/php.ini
+ARG TIMEZONE
+RUN echo "\n""date.timezone = $TIMEZONE""\n" >> /usr/local/etc/php/php.ini
+
+#
+# Xdebug
+#
+RUN pecl install xdebug \
+    && docker-php-ext-enable xdebug
+COPY xdebug.ini /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
+
+#
+# Phing
+#
+RUN pear channel-discover pear.phing.info \
+    && pear install [--alldeps] phing/phing
+
+#
+# Composer + https://packagist.org/packages/hirak/prestissimo package
+#
+RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" \
+    && php -r "if (hash_file('SHA384', 'composer-setup.php') === \
+    '544e09ee996cdf60ece3804abc52599c22b1f40f4323403c44d44fdfdd586475ca9813a858088ffbc1f233e9b180f061') { echo \
+    'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" \
+    && php composer-setup.php --install-dir=/usr/local/bin --filename=composer \
+    && php -r "unlink('composer-setup.php');" \
+    && composer global require --no-plugins --no-scripts hirak/prestissimo \
+    && rm -rf /root/.composer/cache/*
+
+#
+# Bash
+#
+RUN sed -i 's/^# export/export/g' /root/.bashrc \
+    && sed -i 's/^# alias/alias/g' /root/.bashrc \
+    && echo "\n"'export PATH=/project/vendor/bin:$PATH'"\n" >> /root/.bashrc

.docker/config/php.ini

@@ -0,0 +1,3 @@
+display_errors = On
+display_startup_errors = On
+error_reporting = E_ALL

.docker/config/xdebug.ini

@@ -0,0 +1,6 @@
+[xdebug]
+zend_extension=xdebug.so
+
+xdebug.remote_enable=1
+xdebug.remote_port=9001
+xdebug.remote_host=10.254.254.254

.env

@@ -0,0 +1 @@
+TIMEZONE=Europe/Warsaw

.gitignore

@@ -7,13 +7,14 @@
 # ----------------------------------------------------------------------------------------------------------------------
 ### Composer
 # ----------------------------------------------------------------------------------------------------------------------
+/composer.lock
 /composer.phar
 
 
 # ----------------------------------------------------------------------------------------------------------------------
 ### Phing
 # ----------------------------------------------------------------------------------------------------------------------
-/phing/properties
+/.phing/properties
 
 
 # ----------------------------------------------------------------------------------------------------------------------
@@ -28,10 +29,16 @@
 /.php_cs.cache
 
 
+# ----------------------------------------------------------------------------------------------------------------------
+### Build files
+# ----------------------------------------------------------------------------------------------------------------------
+/.build/
+
+
 # ----------------------------------------------------------------------------------------------------------------------
 ### Generated databases
 # ----------------------------------------------------------------------------------------------------------------------
-/data/tmp
+/.data/tmp
 *.sql
 *.sqlite
 

.phing/app.xml

@@ -2,12 +2,12 @@
 <project name="Meritoo Package" basedir="." default="build:main" phingVersion="2.14.0">
     <!-- Properties -->
     <if>
-        <available file="phing/properties" property="custom.properties.available"/>
+        <available file=".phing/properties" property="custom.properties.available"/>
         <then>
-            <property file="phing/properties" />
+            <property file=".phing/properties" />
         </then>
         <else>
-            <property file="phing/properties.dist" />
+            <property file=".phing/properties.dist" />
         </else>
     </if>
 

.phing/properties.dist

@@ -28,7 +28,13 @@ assets.installWithSymlink = true
 
 # Clear cache with the "warmup" option
 #
-cache.clearWithWarmup = true
+# The cache:clear command should always be called with the --no-warmup option. Warmup should be done via the cache:warmup command.
+# https://github.com/symfony/symfony/blob/master/UPGRADE-3.3.md#frameworkbundle
+#
+# Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+# 2017-06-06
+#
+cache.clearWithWarmup = false
 
 # --------------------------------------------------------------------------------
 # Composer
@@ -59,7 +65,7 @@ composer.validate = false
 
 # System directories
 #
-dir.data = ${project.basedir}/data
+dir.data = ${project.basedir}/.data
 dir.src = ${project.basedir}/src
 dir.tests = ${project.basedir}/tests
 
@@ -67,7 +73,7 @@ dir.tests = ${project.basedir}/tests
 # Build directories
 # --------------------------------------------------------------------------------
 
-dir.build = ${project.basedir}/build
+dir.build = ${project.basedir}/.build
 dir.reports = ${dir.build}/logs
 dir.reports.pdepend = ${dir.reports}/pdepend
 dir.reports.coverage = ${dir.reports}/phpunit_coverage

.phing/tests.xml

@@ -11,12 +11,12 @@
 
     <!-- Properties -->
     <if>
-        <available file="phing/properties" property="custom.properties.available"/>
+        <available file=".phing/properties" property="custom.properties.available"/>
         <then>
-            <property file="phing/properties" />
+            <property file=".phing/properties" />
         </then>
         <else>
-            <property file="phing/properties.dist" />
+            <property file=".phing/properties.dist" />
         </else>
     </if>
 

.styleci.yml

@@ -0,0 +1,8 @@
+preset: symfony
+
+disabled:
+    - phpdoc_annotation_without_dot
+    - cast_spaces
+    - concat_without_spaces
+    - blank_line_before_return
+    - trim_array_spaces

.travis.yml

@@ -0,0 +1,12 @@
+language: php
+
+php:
+  - 5.6
+  - 7.0
+  - 7.1
+
+install:
+  - composer install
+
+script:
+  - php ./vendor/bin/phpunit

README.md

@@ -1,25 +1,114 @@
 # Meritoo Common Library
-Useful classes, methods, extensions etc.
+Common and useful classes, methods, exceptions etc.
+
+[![Travis](https://img.shields.io/travis/rust-lang/rust.svg?style=flat-square)](https://travis-ci.org/meritoo/common-library) [![Packagist](https://img.shields.io/packagist/v/meritoo/common-library.svg?style=flat-square)](https://packagist.org/packages/meritoo/common-library) [![StyleCI](https://styleci.io/repos/101790028/shield?branch=master)](https://styleci.io/repos/101790028) [![license](https://img.shields.io/github/license/meritoo/common-library.svg?style=flat-square)](https://github.com/meritoo/common-library) [![GitHub commits](https://img.shields.io/github/commits-since/meritoo/common-library/0.0.1.svg?style=flat-square)](https://github.com/meritoo/common-library) [![Coverage Status](https://coveralls.io/repos/github/meritoo/common-library/badge.svg?branch=master)](https://coveralls.io/github/meritoo/common-library?branch=master)
 
 ## Installation
 
-Run [Composer](https://getcomposer.org) to install new package:
+Run [Composer](https://getcomposer.org) to install this package in your project:
 
-    ```bash
+```bash
-    $ composer require meritoo/common-library
+$ composer require meritoo/common-library
-    ```
+```
 
 > How to install Composer: https://getcomposer.org/download
 
-## Usage
+## Rebuilding project and tests running
 
-This package contains a lot of static methods, so usage is not so complicated. Just run the static method who would you like to use. Example:
+```bash
+$ docker-compose up -d
+$ docker-compose exec php-cli phing
+```
+
+> What is Docker? https://www.docker.com/what-docker
+
+## Static methods
+
+This package contains a lot of class with static methods, so usage is not so complicated. Just run the static method who would you like to use. Example:
 
 ```php
 use Meritoo\Common\Utilities\Arrays;
 
-$firstElement = Arrays::getFirstElement(['lorem' 'ipsum']);
+$firstElement = Arrays::getFirstElement(['lorem', 'ipsum']);
-// result: "lorem"
+var_dump($firstElement); // string(5) "lorem"
+```
+
+## Base test case with common methods and data providers
+
+Located here: `Meritoo\Common\Test\Base\BaseTestCase`. Just extend the `BaseTestCase` class and use it like in `Meritoo\Common\Test\Utilities\DateTest` class:
+
+```php
+class DateTest extends BaseTestCase
+{
+    /**
+     * @param mixed $value Empty value, e.g. ""
+     * @dataProvider provideEmptyValue
+     */
+    public function testGetDateTimeEmptyValue($value)
+    {
+        self::assertFalse(Date::getDateTime($value));
+    }
+
+	(...)
+}
+```
+
+or in `Meritoo\Common\Test\Utilities\MimeTypesTest` class:
+
+```php
+class MimeTypesTest extends BaseTestCase
+{
+	(...)
+
+    /**
+     * @param bool $mimeType The mime type, e.g. "video/mpeg"
+     * @dataProvider provideBooleanValue
+     */
+    public function testGetExtensionBooleanMimeType($mimeType)
+    {
+        self::assertEquals('', MimeTypes::getExtension($mimeType));
+    }
+
+	(...)
+}
+```
+
+## Collection of elements
+
+Located here: `Meritoo\Common\Collection\Collection`. It's a set of some elements, e.g. objects. It's iterable and countable. Provides very useful methods. Some of them:
+- `getFirst()` - returns the first element in the collection
+- `getLast()` - returns the last element in the collection
+- `isEmpty()` - returns information if collection is empty
+- `add($element, $index = null)` - adds given element (at the end of collection)
+- `addMultiple($elements, $useIndexes = false)` - adds given elements (at the end of collection)
+- `prepend($element)` - prepends given element (adds given element at the beginning of collection)
+- `remove($element)` - removes given element
+
+Examples of usage below.
+
+#### An empty collection
+
+```php
+use Meritoo\Common\Collection\Collection;
+
+$emptyCollection = new Collection();
+var_dump($emptyCollection->isEmpty()); // bool(true)
+```
+
+#### Simple collection
+
+```php
+use Meritoo\Common\Collection\Collection;
+
+$elements = [
+    'lorem',
+    'ipsum',
+    123 => 'dolor',
+    345 => 'sit',
+];
+
+$simpleCollection = new Collection($elements);
+var_dump($simpleCollection->has('dolor')); // bool(true)
 ```
 
 Enjoy!

build.xml

@@ -2,12 +2,12 @@
 <project name="Meritoo Package" basedir="." default="build:main" phingVersion="2.14.0">
     <!-- Properties -->
     <if>
-        <available file="phing/properties" property="custom.properties.available"/>
+        <available file=".phing/properties" property="custom.properties.available"/>
         <then>
-            <property file="phing/properties" />
+            <property file=".phing/properties" />
         </then>
         <else>
-            <property file="phing/properties.dist" />
+            <property file=".phing/properties.dist" />
         </else>
     </if>
 
@@ -18,12 +18,12 @@
 
     <!-- Build app -->
     <target name="build:app" description="Prepares app to build and tests">
-        <phing phingfile="phing/app.xml" haltonfailure="true" />
+        <phing phingfile=".phing/app.xml" haltonfailure="true" />
     </target>
 
     <!-- Build tests -->
     <target name="build:tests" description="Runs all tests, checks and creates docs">
-        <phing phingfile="phing/tests.xml" haltonfailure="true" />
+        <phing phingfile=".phing/tests.xml" haltonfailure="true" />
 
         <!--
         Conditional running of tests.
@@ -35,7 +35,7 @@
         <if>
             <equals arg1="${env}" arg2="test" />
             <then>
-                <phing phingfile="phing/tests.xml" haltonfailure="true" />
+                <phing phingfile=".phing/tests.xml" haltonfailure="true" />
             </then>
             <else>
                 <echo message="[Skipped] Running tests, checks and creating docs, because it's a not 'test' environment..." />

composer.json

@@ -2,7 +2,7 @@
     "name": "meritoo/common-library",
     "description": "Useful classes, methods, extensions etc.",
     "license": "MIT",
-    "version": "0.0.5",
+    "version": "0.0.16",
     "authors": [
         {
             "name": "Meritoo.pl",
@@ -11,24 +11,31 @@
         }
     ],
     "require": {
-        "php": ">=5.6.0",
+        "php": ">=5.5.9",
         "doctrine/orm": "^2.5",
         "gedmo/doctrine-extensions": "^2.4",
         "symfony/http-foundation": "^3.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8 || ^5.0",
+        "friendsofphp/php-cs-fixer": "^2.2",
-        "squizlabs/php_codesniffer": "^2.8",
-        "phpmd/phpmd": "^2.6",
-        "sebastian/phpcpd": "^3.0",
         "pdepend/pdepend": "^2.5",
-        "phploc/phploc": "^3.0",
+        "phploc/phploc": "^2.1",
-        "friendsofphp/php-cs-fixer": "^2.1"
+        "phpmd/phpmd": "^2.6",
+        "phpunit/phpunit": "^4.8",
+        "sebastian/phpcpd": "^2.0",
+        "squizlabs/php_codesniffer": "^2.9"
     },
     "autoload": {
         "psr-4": {
-            "Meritoo\\Common\\": "src/Meritoo/Common/",
+            "Meritoo\\Common\\": "src/"
-            "Meritoo\\Common\\Test\\": "tests/Meritoo/Common/Test/"
         }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "Meritoo\\Common\\Test\\": "tests/"
+        }
+    },
+    "config": {
+        "sort-packages": true
     }
 }

docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+
+services:
+    php-cli:
+        image: meritoo/common-library
+        container_name: meritoo-common-library
+        working_dir: /project
+        entrypoint: php
+        command: -S 0.0.0.0:9999
+        build:
+            context: ./.docker/config
+            args:
+                - TIMEZONE=$TIMEZONE
+        volumes:
+            - .:/project

phpunit.xml.dist

@@ -30,6 +30,6 @@
     </groups>
 
     <logging>
-        <log type="coverage-html" target="./build/logs/phpunit_coverage/html" />
+        <log type="coverage-html" target="./.build/logs/phpunit_coverage/html" />
     </logging>
 </phpunit>

src/Collection/Collection.php

@@ -109,7 +109,7 @@ class Collection implements Countable, ArrayAccess, IteratorAggregate
      */
     public function add($element, $index = null)
     {
-        if ($index === null) {
+        if (null === $index) {
             $this->elements[] = $element;
         } else {
             $this->elements[$index] = $element;
@@ -216,7 +216,7 @@ class Collection implements Countable, ArrayAccess, IteratorAggregate
     {
         $index = Arrays::getIndexOf($this->elements, $element);
 
-        return $index !== null && $index !== false;
+        return null !== $index && false !== $index;
     }
 
     /**

src/Exception/File/EmptyFileException.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Exception\File;
+
+/**
+ * An exception used while file with given path is empty (has no content)
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class EmptyFileException extends \Exception
+{
+    /**
+     * Class constructor
+     *
+     * @param string $emptyFilePath Path of the empty file
+     */
+    public function __construct($emptyFilePath)
+    {
+        $template = 'File with path \'%s\' is empty (has no content). Did you provide path of proper file?';
+        $message = sprintf($template, $emptyFilePath);
+
+        parent::__construct($message);
+    }
+}

src/Exception/File/EmptyFilePathException.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Exception\File;
+
+/**
+ * An exception used while path of given file is empty
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class EmptyFilePathException extends \Exception
+{
+    /**
+     * Class constructor
+     */
+    public function __construct()
+    {
+        parent::__construct('Path of the file is empty. Did you provide path of proper file?');
+    }
+}

src/Exception/File/NotExistingFileException.php

@@ -0,0 +1,31 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Exception\File;
+
+/**
+ * An exception used while file with given path does not exist
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class NotExistingFileException extends \Exception
+{
+    /**
+     * Class constructor
+     *
+     * @param string $notExistingFilePath Path of not existing (or not readable) file
+     */
+    public function __construct($notExistingFilePath)
+    {
+        $template = 'File with path \'%s\' does not exist (or is not readable). Did you provide path of proper file?';
+        $message = sprintf($template, $notExistingFilePath);
+
+        parent::__construct($message);
+    }
+}

src/Exception/Method/DisabledMethodException.php

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Exception\Method;
+
+use Exception;
+
+/**
+ * An exception used while method cannot be called, because is disabled
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class DisabledMethodException extends Exception
+{
+    /**
+     * Class constructor
+     *
+     * @param string $disabledMethod    Name of the disabled method
+     * @param string $alternativeMethod (optional) Name of the alternative method
+     */
+    public function __construct($disabledMethod, $alternativeMethod = '')
+    {
+        $template = 'Method %s() cannot be called, because is disabled.';
+
+        if (!empty($alternativeMethod)) {
+            $template .= ' Use %s() instead.';
+        }
+
+        $message = sprintf($template, $disabledMethod, $alternativeMethod);
+        parent::__construct($message);
+    }
+}

src/Exception/Reflection/CannotResolveClassNameException.php

@@ -21,7 +21,7 @@ class CannotResolveClassNameException extends Exception
     /**
      * Class constructor
      *
-     * @param array|object|string $source   Source of the class's / trait's name. It cane be an array of objects,
+     * @param array|object|string $source   Source of the class's / trait's name. It can be an array of objects,
      *                                      namespaces, object or namespace.
      * @param bool                $forClass (optional) If is set to true, message of this exception for class is
      *                                      prepared. Otherwise - for trait.

src/Test/Base/BaseTestCase.php

@@ -12,7 +12,8 @@ use DateTime;
 use Generator;
 use Meritoo\Common\Exception\Type\UnknownOopVisibilityTypeException;
 use Meritoo\Common\Type\OopVisibilityType;
-use PHPUnit_Framework_TestCase;
+use Meritoo\Common\Utilities\Miscellaneous;
+use PHPUnit\Framework\TestCase;
 use ReflectionClass;
 use ReflectionMethod;
 
@@ -22,8 +23,15 @@ use ReflectionMethod;
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-abstract class BaseTestCase extends PHPUnit_Framework_TestCase
+abstract class BaseTestCase extends TestCase
 {
+    /**
+     * Path of directory with data used by test cases
+     *
+     * @var string
+     */
+    private static $testsDataDirPath = '.data/tests';
+
     /**
      * Provides an empty value
      *
@@ -97,19 +105,24 @@ abstract class BaseTestCase extends PHPUnit_Framework_TestCase
 
     /**
      * Returns path of file used by tests.
-     * It should be placed in /data/tests directory of this project.
+     * It should be placed in /.data/tests directory of this project.
      *
      * @param string $fileName      Name of file
      * @param string $directoryPath (optional) Path of directory containing the file
      * @return string
      */
-    public function getFilePathToTests($fileName, $directoryPath = '')
+    public function getFilePathForTesting($fileName, $directoryPath = '')
     {
-        if (!empty($directoryPath)) {
+        $rootPath = Miscellaneous::getProjectRootPath();
-            $directoryPath = '/' . $directoryPath;
-        }
 
-        return sprintf('%s/../../../../../data/tests/%s%s', __DIR__, $fileName, $directoryPath);
+        $paths = [
+            $rootPath,
+            self::$testsDataDirPath,
+            $directoryPath,
+            $fileName,
+        ];
+
+        return Miscellaneous::concatenatePaths($paths);
     }
 
     /**
@@ -129,7 +142,7 @@ abstract class BaseTestCase extends PHPUnit_Framework_TestCase
      * - string - name of the method
      * - instance of ReflectionMethod - just the method (provided by ReflectionClass::getMethod() method)
      */
-    protected function verifyMethodVisibilityAndArguments(
+    protected static function assertMethodVisibilityAndArguments(
         $classNamespace,
         $method,
         $visibilityType,
@@ -174,7 +187,7 @@ abstract class BaseTestCase extends PHPUnit_Framework_TestCase
     /**
      * Verifies visibility and arguments of class constructor
      *
-     * @param string $classNamespace         Namespace of class that contains method to verify
+     * @param string $classNamespace         Namespace of class that contains constructor to verify
      * @param string $visibilityType         Expected visibility of verified method. One of OopVisibilityType class
      *                                       constants.
      * @param int    $argumentsCount         (optional) Expected count/amount of arguments of the verified method
@@ -182,7 +195,7 @@ abstract class BaseTestCase extends PHPUnit_Framework_TestCase
      *                                       method
      * @throws UnknownOopVisibilityTypeException
      */
-    protected function verifyConstructorVisibilityAndArguments(
+    protected static function assertConstructorVisibilityAndArguments(
         $classNamespace,
         $visibilityType,
         $argumentsCount = 0,
@@ -194,6 +207,32 @@ abstract class BaseTestCase extends PHPUnit_Framework_TestCase
         $reflection = new ReflectionClass($classNamespace);
         $method = $reflection->getConstructor();
 
-        return $this->verifyMethodVisibilityAndArguments($classNamespace, $method, $visibilityType, $argumentsCount, $requiredArgumentsCount);
+        return static::assertMethodVisibilityAndArguments($classNamespace, $method, $visibilityType, $argumentsCount, $requiredArgumentsCount);
+    }
+
+    /**
+     * Asserts that class with given namespace has no constructor
+     *
+     * @param string $classNamespace Namespace of class that contains constructor to verify
+     */
+    protected static function assertHasNoConstructor($classNamespace)
+    {
+        /*
+         * Let's grab the constructor
+         */
+        $reflection = new ReflectionClass($classNamespace);
+        $constructor = $reflection->getConstructor();
+
+        static::assertNull($constructor);
+    }
+
+    /**
+     * Sets path of directory with data used by test cases
+     *
+     * @param string $testsDataDirPath Path of directory with data used by test cases
+     */
+    protected static function setTestsDataDirPath($testsDataDirPath)
+    {
+        static::$testsDataDirPath = $testsDataDirPath;
     }
 }

src/Test/Base/BaseTypeTestCase.php

@@ -1,5 +1,11 @@
 <?php
 
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
 namespace Meritoo\Common\Test\Base;
 
 use Generator;

src/Type/Base/BaseType.php

@@ -33,7 +33,7 @@ abstract class BaseType
      */
     public function getAll()
     {
-        if ($this->all === null) {
+        if (null === $this->all) {
             $this->all = Reflection::getConstants($this);
         }
 

src/Utilities/Arrays.php

@@ -415,7 +415,7 @@ class Arrays
                      * var autoGeneratedVariable = new Array(...);autoGeneratedVariable[0] = new Array(...);
                      * autoGeneratedVariable[1] = new Array(...);
                      */
-                    if ($counter === 1) {
+                    if (1 === $counter) {
                         $effect .= "\n";
                     }
 
@@ -758,7 +758,7 @@ class Arrays
         foreach ($exploded as $item) {
             $exploded2 = explode($valuesKeysSeparator, $item);
 
-            if (count($exploded2) == 2) {
+            if (2 == count($exploded2)) {
                 $key = trim($exploded2[0]);
                 $value = trim($exploded2[1]);
 
@@ -1124,7 +1124,7 @@ class Arrays
         if (!empty($array)) {
             $childPosition = 1;
 
-            if ($startPosition !== null) {
+            if (null !== $startPosition) {
                 $array[$keyName] = $startPosition;
             }
 
@@ -1316,7 +1316,7 @@ class Arrays
              *
              * If one of the above is true, not all elements of given array are empty
              */
-            if ((!is_array($element) && $strictNull && $element !== null) || !empty($element)) {
+            if ((!is_array($element) && $strictNull && null !== $element) || !empty($element)) {
                 return false;
             }
         }
@@ -1353,7 +1353,7 @@ class Arrays
          * Values should be compared only and both arrays are one-dimensional?
          * Let's find difference by using simple function
          */
-        if ($valuesOnly && self::getDimensionsCount($array1) == 1 && self::getDimensionsCount($array2) == 1) {
+        if ($valuesOnly && 1 == self::getDimensionsCount($array1) && 1 == self::getDimensionsCount($array2)) {
             return array_diff($array1, $array2);
         }
 
@@ -1381,7 +1381,7 @@ class Arrays
                     }
                 }
 
-                if ($difference !== null) {
+                if (null !== $difference) {
                     $effect[] = $difference;
                 }
             } else {
@@ -1472,7 +1472,7 @@ class Arrays
              * Start index not provided?
              * Let's look for the first index / key of given array
              */
-            if ($startIndex === null) {
+            if (null === $startIndex) {
                 $startIndex = self::getFirstKey($array);
             }
 
@@ -1617,7 +1617,7 @@ class Arrays
          * Index of element or of element's key is unknown?
          * Probably the element does not exist in given array, so... nothing to do
          */
-        if ($elementKey === null || $indexOfKey === null) {
+        if (null === $elementKey || null === $indexOfKey) {
             return null;
         }
 

src/Utilities/Composer.php

@@ -59,7 +59,7 @@ class Composer
          * Unknown data from the composer.json file or there is no node with given name?
          * Nothing to do
          */
-        if ($data === null || !isset($data->{$nodeName})) {
+        if (null === $data || !isset($data->{$nodeName})) {
             return null;
         }
 

src/Utilities/Date.php

@@ -129,10 +129,10 @@ class Date
                     $dateStart = new DateTime();
                     $dateEnd = new DateTime();
 
-                    if ($period == DatePeriod::LAST_YEAR || $period == DatePeriod::NEXT_YEAR) {
+                    if (DatePeriod::LAST_YEAR == $period || DatePeriod::NEXT_YEAR == $period) {
                         $yearDifference = 1;
 
-                        if ($period == DatePeriod::LAST_YEAR) {
+                        if (DatePeriod::LAST_YEAR == $period) {
                             $yearDifference *= -1;
                         }
 
@@ -148,7 +148,7 @@ class Date
                     break;
             }
 
-            if ($dateStart !== null && $dateEnd !== null) {
+            if (null !== $dateStart && null !== $dateEnd) {
                 $dateStart->setTime(0, 0, 0);
                 $dateEnd->setTime(23, 59, 59);
 
@@ -311,7 +311,7 @@ class Date
 
         $encoding = mb_detect_encoding($name);
 
-        if ($encoding === false) {
+        if (false === $encoding) {
             $name = mb_convert_encoding($name, 'UTF-8', 'ISO-8859-2');
         }
 
@@ -378,46 +378,46 @@ class Date
             self::DATE_DIFFERENCE_UNIT_MINUTES,
         ];
 
-        if ($differenceUnit === null || $differenceUnit == self::DATE_DIFFERENCE_UNIT_YEARS) {
+        if (null === $differenceUnit || self::DATE_DIFFERENCE_UNIT_YEARS == $differenceUnit) {
             $diff = $dateEnd->diff($dateStart);
 
             /*
              * Difference between dates in years should be returned only?
              */
-            if ($differenceUnit == self::DATE_DIFFERENCE_UNIT_YEARS) {
+            if (self::DATE_DIFFERENCE_UNIT_YEARS == $differenceUnit) {
                 return $diff->y;
             }
 
             $difference[self::DATE_DIFFERENCE_UNIT_YEARS] = $diff->y;
         }
 
-        if ($differenceUnit === null || $differenceUnit == self::DATE_DIFFERENCE_UNIT_MONTHS) {
+        if (null === $differenceUnit || self::DATE_DIFFERENCE_UNIT_MONTHS == $differenceUnit) {
             $diff = $dateEnd->diff($dateStart);
 
             /*
              * Difference between dates in months should be returned only?
              */
-            if ($differenceUnit == self::DATE_DIFFERENCE_UNIT_MONTHS) {
+            if (self::DATE_DIFFERENCE_UNIT_MONTHS == $differenceUnit) {
                 return $diff->m;
             }
 
             $difference[self::DATE_DIFFERENCE_UNIT_MONTHS] = $diff->m;
         }
 
-        if ($differenceUnit === null || in_array($differenceUnit, $relatedUnits)) {
+        if (null === $differenceUnit || in_array($differenceUnit, $relatedUnits)) {
             $days = (int)floor($dateDiff / $daySeconds);
 
             /*
              * Difference between dates in days should be returned only?
              */
-            if ($differenceUnit == self::DATE_DIFFERENCE_UNIT_DAYS) {
+            if (self::DATE_DIFFERENCE_UNIT_DAYS == $differenceUnit) {
                 return $days;
             }
 
             /*
              * All units should be returned?
              */
-            if ($differenceUnit === null) {
+            if (null === $differenceUnit) {
                 $difference[self::DATE_DIFFERENCE_UNIT_DAYS] = $days;
             }
 
@@ -427,20 +427,20 @@ class Date
             $daysInSeconds = $days * $daySeconds;
         }
 
-        if ($differenceUnit === null || in_array($differenceUnit, $relatedUnits)) {
+        if (null === $differenceUnit || in_array($differenceUnit, $relatedUnits)) {
             $hours = (int)floor(($dateDiff - $daysInSeconds) / $hourSeconds);
 
             /*
              * Difference between dates in hours should be returned only?
              */
-            if ($differenceUnit == self::DATE_DIFFERENCE_UNIT_HOURS) {
+            if (self::DATE_DIFFERENCE_UNIT_HOURS == $differenceUnit) {
                 return $hours;
             }
 
             /*
              * All units should be returned?
              */
-            if ($differenceUnit === null) {
+            if (null === $differenceUnit) {
                 $difference[self::DATE_DIFFERENCE_UNIT_HOURS] = $hours;
             }
 
@@ -450,13 +450,13 @@ class Date
             $hoursInSeconds = $hours * $hourSeconds;
         }
 
-        if ($differenceUnit === null || $differenceUnit == self::DATE_DIFFERENCE_UNIT_MINUTES) {
+        if (null === $differenceUnit || self::DATE_DIFFERENCE_UNIT_MINUTES == $differenceUnit) {
             $minutes = (int)floor(($dateDiff - $daysInSeconds - $hoursInSeconds) / 60);
 
             /*
              * Difference between dates in minutes should be returned only?
              */
-            if ($differenceUnit == self::DATE_DIFFERENCE_UNIT_MINUTES) {
+            if (self::DATE_DIFFERENCE_UNIT_MINUTES == $differenceUnit) {
                 return $minutes;
             }
 
@@ -524,7 +524,7 @@ class Date
      */
     public static function getRandomDate(DateTime $startDate = null, $start = 1, $end = 100, $intervalTemplate = 'P%sD')
     {
-        if ($startDate === null) {
+        if (null === $startDate) {
             $startDate = new DateTime();
         }
 
@@ -590,7 +590,7 @@ class Date
                  */
                 $dateFromFormat = DateTime::createFromFormat($dateFormat, $value);
 
-                if ($dateFromFormat === false) {
+                if (false === $dateFromFormat) {
                     /*
                      * Nothing to do more, because:
                      * a) instance of the DateTime was created

src/Utilities/DatePeriod.php

@@ -140,7 +140,7 @@ class DatePeriod
         /*
          * Unknown date or format is invalid?
          */
-        if ($date === null || !Date::isValidDateFormat($format)) {
+        if (null === $date || !Date::isValidDateFormat($format)) {
             return '';
         }
 

src/Utilities/Miscellaneous.php

@@ -65,7 +65,7 @@ class Miscellaneous
 
         if (!empty($directoryContent)) {
             foreach ($directoryContent as $fileName) {
-                if ($fileName != '.' && $fileName != '..') {
+                if ('.' != $fileName && '..' != $fileName) {
                     $content = null;
 
                     if (!empty($startFileName) && !$startFileFound) {
@@ -80,7 +80,7 @@ class Miscellaneous
                         $content = self::getDirectoryContent($directoryPath . $fileName, true, $maxFilesCount - $count);
                     }
 
-                    if ($content !== null) {
+                    if (null !== $content) {
                         $files[$fileName] = $content;
 
                         if (!empty($maxFilesCount)) {
@@ -365,7 +365,7 @@ class Miscellaneous
          * Oops, cannot instantiate converter
          * Nothing to do
          */
-        if ($converter === null) {
+        if (null === $converter) {
             return '';
         }
 
@@ -460,7 +460,7 @@ class Miscellaneous
          * Value to find is neither a string nor an array OR it's an empty string?
          * Nothing to do
          */
-        if ((!$searchIsString && !$searchIsArray) || ($searchIsString && strlen($search) == 0)) {
+        if ((!$searchIsString && !$searchIsArray) || ($searchIsString && 0 == strlen($search))) {
             return $effect;
         }
 
@@ -612,7 +612,7 @@ class Miscellaneous
             $effect = mb_substr($text, 0, $maxLength, 'utf-8');
             $lastSpacePosition = mb_strrpos($effect, ' ', 'utf-8');
 
-            if ($lastSpacePosition !== false) {
+            if (false !== $lastSpacePosition) {
                 $effect = mb_substr($effect, 0, $lastSpacePosition, 'utf-8');
             }
 
@@ -730,7 +730,7 @@ class Miscellaneous
         }
 
         foreach (scandir($directoryPath) as $item) {
-            if ($item == '.' || $item == '..') {
+            if ('.' == $item || '..' == $item) {
                 continue;
             }
 
@@ -776,7 +776,7 @@ class Miscellaneous
         foreach ($members as $key => $value) {
             $value = mb_strtolower($value);
 
-            if ($key == 0) {
+            if (0 == $key) {
                 $effect .= self::lowercaseFirst($value);
             } else {
                 $effect .= self::uppercaseFirst($value);
@@ -812,7 +812,7 @@ class Miscellaneous
 
         if ($restLowercase) {
             $effect = mb_strtolower($effect);
-        } elseif ($restLowercase === false) {
+        } elseif (false === $restLowercase) {
             $effect = mb_strtoupper($effect);
         }
 
@@ -850,7 +850,7 @@ class Miscellaneous
 
         if ($restLowercase) {
             $effect = mb_strtolower($effect);
-        } elseif ($restLowercase === false) {
+        } elseif (false === $restLowercase) {
             $effect = mb_strtoupper($effect);
         }
 
@@ -1032,6 +1032,8 @@ class Miscellaneous
         $separator = DIRECTORY_SEPARATOR;
 
         foreach ($paths as $path) {
+            $path = trim($path);
+
             /*
              * Empty paths are useless
              */
@@ -1153,7 +1155,7 @@ class Miscellaneous
     {
         $value = filter_input($globalSourceType, $variableName);
 
-        if ($value === null) {
+        if (null === $value) {
             $globalSource = null;
 
             switch ($globalSourceType) {
@@ -1178,7 +1180,7 @@ class Miscellaneous
                     break;
             }
 
-            if ($globalSource !== null && isset($globalSource[$variableName])) {
+            if (null !== $globalSource && isset($globalSource[$variableName])) {
                 $value = $globalSource[$variableName];
 
                 if (!ini_get('magic_quotes_gpc')) {
@@ -1232,7 +1234,7 @@ class Miscellaneous
             /*
              * First line is only HTTP status and is unneeded so skip it
              */
-            if ($i === 0) {
+            if (0 === $i) {
                 continue;
             }
 
@@ -1242,7 +1244,7 @@ class Miscellaneous
                 /*
                  * If the header is a "set-cookie" let's save it to "cookies" array
                  */
-                if ($key === 'Set-Cookie') {
+                if ('Set-Cookie' === $key) {
                     $cookieParameters = explode(';', $value);
 
                     $name = '';
@@ -1260,7 +1262,7 @@ class Miscellaneous
                          * First parameter will be always a cookie name and it's value. It is not needed to run
                          * further actions for them, so save the values and move to next parameter.
                          */
-                        if ($j === 0) {
+                        if (0 === $j) {
                             $name = trim($param[0]);
                             $value = trim($param[1]);
                             continue;
@@ -1416,7 +1418,7 @@ class Miscellaneous
         if ($asHexadecimal) {
             $hexadecimal = dechex($colorComponent);
 
-            if (strlen($hexadecimal) == 1) {
+            if (1 == strlen($hexadecimal)) {
                 return sprintf('0%s', $hexadecimal, $hexadecimal);
             }
 
@@ -1471,4 +1473,37 @@ class Miscellaneous
 
         return $invertedColor;
     }
+
+    /**
+     * Returns project's root path.
+     * Looks for directory that contains composer.json.
+     *
+     * @return string
+     */
+    public static function getProjectRootPath()
+    {
+        $projectRootPath = '';
+
+        $fileName = 'composer.json';
+        $directoryPath = __DIR__;
+
+        /*
+         * Path of directory it's not the path of last directory?
+         */
+        while (DIRECTORY_SEPARATOR !== $directoryPath) {
+            $filePath = static::concatenatePaths($directoryPath, $fileName);
+
+            /*
+             * Is here file we are looking for?
+             * Maybe it's a project's root path
+             */
+            if (file_exists($filePath)) {
+                $projectRootPath = $directoryPath;
+            }
+
+            $directoryPath = dirname($directoryPath);
+        }
+
+        return $projectRootPath;
+    }
 }

src/Utilities/QueryBuilderUtility.php

@@ -108,7 +108,7 @@ class QueryBuilderUtility
                 $compareOperator = '=';
 
                 if (is_array($value) && !empty($value)) {
-                    if (count($value) == 2) {
+                    if (2 == count($value)) {
                         $compareOperator = $value[1];
                     }
 
@@ -117,7 +117,7 @@ class QueryBuilderUtility
 
                 $predicate = sprintf('%s.%s %s :%s', $alias, $column, $compareOperator, $column);
 
-                if ($value === null) {
+                if (null === $value) {
                     $predicate = $queryBuilder->expr()->isNull(sprintf('%s.%s', $alias, $column));
                     unset($criteria[$column]);
                 } else {

src/Utilities/Reflection.php

@@ -8,9 +8,9 @@
 
 namespace Meritoo\Common\Utilities;
 
-use Doctrine\Common\Collections\Collection;
 use Doctrine\Common\Util\ClassUtils;
 use Doctrine\Common\Util\Inflector;
+use Meritoo\Common\Collection\Collection;
 use Meritoo\Common\Exception\Reflection\CannotResolveClassNameException;
 use Meritoo\Common\Exception\Reflection\MissingChildClassesException;
 use Meritoo\Common\Exception\Reflection\TooManyChildClassesException;
@@ -201,7 +201,7 @@ class Reflection
              * Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
              * 2016-11-07
              */
-            if ($object !== null) {
+            if (null !== $object) {
                 unset($exploded[0]);
 
                 $property = implode('.', $exploded);
@@ -229,32 +229,45 @@ class Reflection
                 if ($class->hasProperty($property) || $force) {
                     $property = Inflector::classify($property);
 
-                    $methodPrefixes = [
+                    $getterPrefixes = [
                         'get',
                         'has',
                         'is',
                     ];
 
-                    foreach ($methodPrefixes as $prefix) {
+                    foreach ($getterPrefixes as $prefix) {
-                        $method = sprintf('%s%s', $prefix, $property);
+                        $getterName = sprintf('%s%s', $prefix, $property);
 
-                        if ($class->hasMethod($method)) {
+                        if ($class->hasMethod($getterName)) {
-                            $value = $object->{$method}();
+                            $method = new ReflectionMethod($object, $getterName);
+
+                            /*
+                             * Getter is not accessible publicly?
+                             * I have to skip it, to avoid an error like this:
+                             *
+                             * Call to protected method My\ExtraClass::getExtraProperty() from context 'My\ExtraClass'
+                             */
+                            if ($method->isProtected() || $method->isPrivate()) {
+                                continue;
+                            }
+
+                            $value = $object->{$getterName}();
                             $valueFound = true;
                             break;
                         }
                     }
                 }
 
-                if (!$valueFound && $reflectionProperty !== null) {
+                if (!$valueFound && null !== $reflectionProperty) {
                     /*
-                     * Oops, we have got exception.
+                     * Oops, value of the property is still unknown
                      *
                      * 3rd try:
-                     * Let's try modify accessibility of the property and try again to get value.
+                     * Let's modify accessibility of the property and try again to get value
                      */
                     $reflectionProperty->setAccessible(true);
                     $value = $reflectionProperty->getValue($object);
+                    $reflectionProperty->setAccessible(false);
                 }
             }
         }
@@ -275,6 +288,14 @@ class Reflection
      */
     public static function getPropertyValues($objects, $property, $force = false)
     {
+        /*
+         * No objects?
+         * Nothing to do
+         */
+        if (empty($objects)) {
+            return [];
+        }
+
         if ($objects instanceof Collection) {
             $objects = $objects->toArray();
         }
@@ -285,7 +306,7 @@ class Reflection
         foreach ($objects as $entity) {
             $value = self::getPropertyValue($entity, $property, $force);
 
-            if ($value !== null) {
+            if (null !== $value) {
                 $values[] = $value;
             }
         }
@@ -345,7 +366,7 @@ class Reflection
         if ($withoutNamespace) {
             $classOnly = Miscellaneous::getLastElementOfString($name, '\\');
 
-            if ($classOnly !== null) {
+            if (null !== $classOnly) {
                 $name = $classOnly;
             }
 
@@ -418,30 +439,44 @@ class Reflection
      * Returns given object properties
      *
      * @param array|object|string $source         An array of objects, namespaces, object or namespace
-     * @param int                 $filter (optional) Filter of properties. Uses ReflectionProperty class constants.
+     * @param int                 $filter         (optional) Filter of properties. Uses ReflectionProperty class
-     *                                    By default all properties are returned.
+     *                                            constants. By default all properties are returned.
+     * @param bool                $includeParents (optional) If is set to true, properties of parent classes are
+     *                                            included (recursively). Otherwise - not.
      * @return array|ReflectionProperty
      */
-    public static function getProperties($source, $filter = null)
+    public static function getProperties($source, $filter = null, $includeParents = false)
     {
         $className = self::getClassName($source);
         $reflection = new ReflectionClass($className);
 
-        if ($filter === null) {
+        if (null === $filter) {
             $filter = ReflectionProperty::IS_PRIVATE
                 + ReflectionProperty::IS_PROTECTED
                 + ReflectionProperty::IS_PUBLIC
                 + ReflectionProperty::IS_STATIC;
         }
 
-        return $reflection->getProperties($filter);
+        $properties = $reflection->getProperties($filter);
+        $parentProperties = [];
+
+        if ($includeParents) {
+            $parent = self::getParentClass($source);
+
+            if (false !== $parent) {
+                $parentClass = $parent->getName();
+                $parentProperties = self::getProperties($parentClass, $filter, $includeParents);
+            }
+        }
+
+        return array_merge($properties, $parentProperties);
     }
 
     /**
-     * Returns a parent class
+     * Returns a parent class or false if there is no parent class
      *
      * @param array|object|string $source An array of objects, namespaces, object or namespace
-     * @return ReflectionClass
+     * @return ReflectionClass|bool
      */
     public static function getParentClass($source)
     {
@@ -477,7 +512,7 @@ class Reflection
         /*
          * Oops, cannot resolve class
          */
-        if ($className === null) {
+        if (null === $className) {
             throw new CannotResolveClassNameException($class);
         }
 
@@ -603,7 +638,7 @@ class Reflection
         if (!$uses && $verifyParents) {
             $parentClassName = self::getParentClassName($className);
 
-            if ($parentClassName !== null) {
+            if (null !== $parentClassName) {
                 return self::usesTrait($parentClassName, $trait, true);
             }
         }
@@ -624,7 +659,7 @@ class Reflection
         $reflection = new ReflectionClass($className);
         $parentClass = $reflection->getParentClass();
 
-        if ($parentClass === null || $parentClass === false) {
+        if (null === $parentClass || false === $parentClass) {
             return null;
         }
 

src/Utilities/Regex.php

@@ -84,7 +84,7 @@ class Regex
             $taxid = preg_replace('/[\s-]/', '', $taxidString);
             $sum = 0;
 
-            if (strlen($taxid) == 10 && is_numeric($taxid)) {
+            if (10 == strlen($taxid) && is_numeric($taxid)) {
                 for ($x = 0; $x <= 8; ++$x) {
                     $sum += $taxid[$x] * $weights[$x];
                 }
@@ -185,9 +185,9 @@ class Regex
                         $pattern = '|' . $filterExpression . '|';
                         $matchesCount = preg_match($pattern, $value, $matches);
 
-                        $remove = $matchesCount == 0;
+                        $remove = 0 == $matchesCount;
                     } else {
-                        if ($value == '') {
+                        if ('' == $value) {
                             $value = '\'\'';
                         } elseif (is_string($value)) {
                             $value = '\'' . $value . '\'';
@@ -431,7 +431,7 @@ class Regex
     public static function startsWith($string, $beginning)
     {
         if (!empty($string) && !empty($beginning)) {
-            if (strlen($beginning) == 1 && !self::isLetterOrDigit($beginning)) {
+            if (1 == strlen($beginning) && !self::isLetterOrDigit($beginning)) {
                 $beginning = '\\' . $beginning;
             }
 
@@ -452,7 +452,7 @@ class Regex
      */
     public static function endsWith($string, $ending)
     {
-        if (strlen($ending) == 1 && !self::isLetterOrDigit($ending)) {
+        if (1 == strlen($ending) && !self::isLetterOrDigit($ending)) {
             $ending = '\\' . $ending;
         }
 
@@ -537,7 +537,7 @@ class Regex
      */
     public static function contains($haystack, $needle)
     {
-        if (strlen($needle) == 1 && !self::isLetterOrDigit($needle)) {
+        if (1 == strlen($needle) && !self::isLetterOrDigit($needle)) {
             $needle = '\\' . $needle;
         }
 
@@ -653,7 +653,7 @@ class Regex
         }
 
         $modulo = $sum % 11;
-        $numberControl = ($modulo == 10) ? 0 : $modulo;
+        $numberControl = (10 == $modulo) ? 0 : $modulo;
 
         return $numberControl == $nip[9];
     }
@@ -698,10 +698,10 @@ class Regex
         $color = Miscellaneous::replace($color, '/#/', '');
         $length = strlen($color);
 
-        if ($length === 3) {
+        if (3 === $length) {
             $color = Miscellaneous::replace($color, '/(.)(.)(.)/', '$1$1$2$2$3$3');
         } else {
-            if ($length !== 6) {
+            if (6 !== $length) {
                 if ($throwException) {
                     throw new IncorrectColorHexLengthException($color);
                 }

src/Utilities/Repository.php

@@ -31,14 +31,14 @@ class Repository
     {
         $position = self::getExtremePosition($items, $asLast);
 
-        if ($position === null && $force) {
+        if (null === $position && $force) {
             $position = 0;
         }
 
-        if ($position !== null && !empty($items)) {
+        if (null !== $position && !empty($items)) {
             foreach ($items as $item) {
                 if (method_exists($item, 'getPosition')) {
-                    if ($item->getPosition() === null) {
+                    if (null === $item->getPosition()) {
                         if ($asLast) {
                             ++$position;
                         } else {

src/Utilities/Xml.php

@@ -40,7 +40,7 @@ class Xml
         $query = $path->query('/*/*');
         $nodesCount = $query->length;
 
-        if ($nodesCount == 0) {
+        if (0 == $nodesCount) {
             return $element1;
         }
 

tests/Collection/CollectionTest.php

@@ -14,7 +14,7 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Type\OopVisibilityType;
 
 /**
- * Tests of the collection of elements
+ * Test case of the collection of elements
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
@@ -306,7 +306,7 @@ class CollectionTest extends BaseTestCase
 
     public function testExistsVisibilityAndArguments()
     {
-        $this->verifyMethodVisibilityAndArguments(Collection::class, 'exists', OopVisibilityType::IS_PRIVATE, 1, 1);
+        static::assertMethodVisibilityAndArguments(Collection::class, 'exists', OopVisibilityType::IS_PRIVATE, 1, 1);
     }
 
     /**

tests/Exception/Base/UnknownTypeExceptionTest.php

@@ -9,17 +9,23 @@
 namespace Meritoo\Common\Test\Exception\Base;
 
 use Meritoo\Common\Exception\Base\UnknownTypeException;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Type\Base\BaseType;
-use PHPUnit_Framework_TestCase;
+use Meritoo\Common\Type\OopVisibilityType;
 
 /**
- * Tests of the exception used while type of something is unknown
+ * Test case of the exception used while type of something is unknown
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class UnknownTypeExceptionTest extends PHPUnit_Framework_TestCase
+class UnknownTypeExceptionTest extends BaseTestCase
 {
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(UnknownTestTypeException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
     public function testWithoutException()
     {
         self::assertEquals('Test 2', (new TestService())->getTranslatedType('test_2'));
@@ -27,7 +33,7 @@ class UnknownTypeExceptionTest extends PHPUnit_Framework_TestCase
 
     public function testTheException()
     {
-        $this->expectException(UnknownTestTypeException::class);
+        $this->setExpectedException(UnknownTestTypeException::class);
         self::assertEmpty((new TestService())->getTranslatedType('test_3'));
     }
 }

tests/Exception/Date/UnknownDatePartTypeExceptionTest.php

@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Date;
+
+use Generator;
+use Meritoo\Common\Exception\Date\UnknownDatePartTypeException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\DatePartType;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while type of date part, e.g. "year", is unknown
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class UnknownDatePartTypeExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(UnknownDatePartTypeException::class, OopVisibilityType::IS_PUBLIC, 2, 2);
+    }
+
+    /**
+     * @param string $unknownDatePart Type of date part, e.g. "year". One of DatePartType class constants.
+     * @param string $value           Incorrect value
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideDatePartAndValue
+     */
+    public function testConstructorMessage($unknownDatePart, $value, $expectedMessage)
+    {
+        $exception = new UnknownDatePartTypeException($unknownDatePart, $value);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides type of date part, incorrect value and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideDatePartAndValue()
+    {
+        $template = 'The \'%s\' type of date part (with value %s) is unknown. Probably doesn\'t exist or there is a'
+            . ' typo. You should use one of these types: day, hour, minute, month, second, year.';
+
+        yield[
+            DatePartType::DAY,
+            '44',
+            sprintf($template, DatePartType::DAY, '44'),
+        ];
+
+        yield[
+            DatePartType::MONTH,
+            '22',
+            sprintf($template, DatePartType::MONTH, '22'),
+        ];
+
+        yield[
+            DatePartType::MINUTE,
+            '77',
+            sprintf($template, DatePartType::MINUTE, '77'),
+        ];
+    }
+}

tests/Exception/File/EmptyFileExceptionTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\File;
+
+use Generator;
+use Meritoo\Common\Exception\File\EmptyFileException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while file with given path is empty (has no content)
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class EmptyFileExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(EmptyFileException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $emptyFilePath   Path of the empty file
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider providePathOfFile
+     */
+    public function testConstructorMessage($emptyFilePath, $expectedMessage)
+    {
+        $exception = new EmptyFileException($emptyFilePath);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides path of the empty file and expected exception's message
+     *
+     * @return Generator
+     */
+    public function providePathOfFile()
+    {
+        $template = 'File with path \'%s\' is empty (has no content). Did you provide path of proper file?';
+
+        yield[
+            'aa/bb/cc',
+            sprintf($template, 'aa/bb/cc'),
+        ];
+
+        yield[
+            'images/show/car.jpg',
+            sprintf($template, 'images/show/car.jpg'),
+        ];
+    }
+}

tests/Exception/File/EmptyFilePathExceptionTest.php

@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\File;
+
+use Meritoo\Common\Exception\File\EmptyFilePathException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while path of given file is empty
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class EmptyFilePathExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(EmptyFilePathException::class, OopVisibilityType::IS_PUBLIC);
+    }
+
+    public function testConstructorMessage()
+    {
+        $exception = new EmptyFilePathException();
+        static::assertEquals('Path of the file is empty. Did you provide path of proper file?', $exception->getMessage());
+    }
+}

tests/Exception/File/NotExistingFileExceptionTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\File;
+
+use Generator;
+use Meritoo\Common\Exception\File\NotExistingFileException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while file with given path does not exist
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class NotExistingFileExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(NotExistingFileException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $notExistingFilePath Path of not existing (or not readable) file
+     * @param string $expectedMessage     Expected exception's message
+     *
+     * @dataProvider providePathOfFile
+     */
+    public function testConstructorMessage($notExistingFilePath, $expectedMessage)
+    {
+        $exception = new NotExistingFileException($notExistingFilePath);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides path of not existing file and expected exception's message
+     *
+     * @return Generator
+     */
+    public function providePathOfFile()
+    {
+        $template = 'File with path \'%s\' does not exist (or is not readable). Did you provide path of proper file?';
+
+        yield[
+            'aa/bb/cc',
+            sprintf($template, 'aa/bb/cc'),
+        ];
+
+        yield[
+            'images/show/car.jpg',
+            sprintf($template, 'images/show/car.jpg'),
+        ];
+    }
+}

tests/Exception/Method/DisabledMethodExceptionTest.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Method;
+
+use Generator;
+use Meritoo\Common\Exception\Method\DisabledMethodException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while method cannot be called, because is disabled
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class DisabledMethodExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(DisabledMethodException::class, OopVisibilityType::IS_PUBLIC, 2, 1);
+    }
+
+    /**
+     * @param string $disabledMethod    Name of the disabled method
+     * @param string $alternativeMethod Name of the alternative method
+     * @param string $expectedMessage   Expected exception's message
+     *
+     * @internal     param string $emptyFilePath Path of the empty file
+     * @dataProvider provideMethodsNames
+     */
+    public function testConstructorMessage($disabledMethod, $alternativeMethod, $expectedMessage)
+    {
+        $exception = new DisabledMethodException($disabledMethod, $alternativeMethod);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides name of the disabled method, name of the alternative method and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideMethodsNames()
+    {
+        $templateShort = 'Method %s() cannot be called, because is disabled.';
+        $templateLong = $templateShort . ' Use %s() instead.';
+
+        yield[
+            'FooBar::loremIpsum',
+            '',
+            sprintf($templateShort, 'FooBar::loremIpsum'),
+        ];
+
+        yield[
+            'FooBar::loremIpsum',
+            'AnotherClass::alternativeMethod',
+            sprintf($templateLong, 'FooBar::loremIpsum', 'AnotherClass::alternativeMethod'),
+        ];
+    }
+}

tests/Exception/Reflection/CannotResolveClassNameExceptionTest.php

@@ -0,0 +1,73 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Reflection;
+
+use Generator;
+use Meritoo\Common\Exception\Reflection\CannotResolveClassNameException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while name of class or trait cannot be resolved
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class CannotResolveClassNameExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(CannotResolveClassNameException::class, OopVisibilityType::IS_PUBLIC, 2, 1);
+    }
+
+    /**
+     * @param array|object|string $source          Source of the class's / trait's name. It can be an array of objects,
+     *                                             namespaces, object or namespace.
+     * @param bool                $forClass        If is set to true, message of this exception for class is prepared.
+     *                                             Otherwise - for trait.
+     * @param string              $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideClassName
+     */
+    public function testConstructorMessage($source, $forClass, $expectedMessage)
+    {
+        $exception = new CannotResolveClassNameException($source, $forClass);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides source of the class's / trait's name, information if message of this exception should be prepared for
+     * class and the expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideClassName()
+    {
+        yield[
+            'Not\Existing\Class',
+            true,
+            'Name of class from given \'string\' Not\Existing\Class cannot be resolved. Is there everything ok?',
+        ];
+
+        yield[
+            'Not\Existing\Trait',
+            false,
+            'Name of trait from given \'string\' Not\Existing\Trait cannot be resolved. Is there everything ok?',
+        ];
+
+        yield[
+            [
+                new \stdClass(),
+                new \stdClass(),
+            ],
+            true,
+            'Name of class from given \'array\' cannot be resolved. Is there everything ok?',
+        ];
+    }
+}

tests/Exception/Reflection/MissingChildClassesExceptionTest.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Reflection;
+
+use Generator;
+use Meritoo\Common\Exception\Reflection\MissingChildClassesException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while given class has no child classes
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class MissingChildClassesExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(MissingChildClassesException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param array|object|string $parentClass     Class that hasn't child classes, but it should. An array of objects,
+     *                                             strings, object or string.
+     * @param string              $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideParentClass
+     */
+    public function testConstructorMessage($parentClass, $expectedMessage)
+    {
+        $exception = new MissingChildClassesException($parentClass);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides name of class that hasn't child classes, but it should, and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideParentClass()
+    {
+        $template = 'The \'%s\' class requires one child class at least who will extend her (maybe is an abstract'
+            . ' class), but the child classes are missing. Did you forget to extend this class?';
+
+        yield[
+            MissingChildClassesException::class,
+            sprintf($template, MissingChildClassesException::class),
+        ];
+
+        yield[
+            [
+                new \stdClass(),
+                new \stdClass(),
+            ],
+            sprintf($template, \stdClass::class),
+        ];
+    }
+}

tests/Exception/Reflection/TooManyChildClassesExceptionTest.php

@@ -0,0 +1,74 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Reflection;
+
+use Generator;
+use Meritoo\Common\Exception\Reflection\TooManyChildClassesException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while given class has more than one child class
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class TooManyChildClassesExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(TooManyChildClassesException::class, OopVisibilityType::IS_PUBLIC, 2, 2);
+    }
+
+    /**
+     * @param array|object|string $parentClass     Class that has more than one child class, but it shouldn't. An array
+     *                                             of objects, strings, object or string.
+     * @param array               $childClasses    Child classes
+     * @param string              $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideParentAndChildClasses
+     */
+    public function testConstructorMessage($parentClass, array $childClasses, $expectedMessage)
+    {
+        $exception = new TooManyChildClassesException($parentClass, $childClasses);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides name of class that has more than one child class, but it shouldn't, child classes, and expected
+     * exception's message
+     *
+     * @return Generator
+     */
+    public function provideParentAndChildClasses()
+    {
+        $template = "The '%s' class requires one child class at most who will extend her, but more than one child"
+            . " class was found:\n- %s\n\nWhy did you create more than one classes that extend '%s' class?";
+
+        yield[
+            BaseTestCase::class,
+            [
+                \stdClass::class,
+                OopVisibilityType::class,
+            ],
+            sprintf($template, BaseTestCase::class, implode("\n- ", [
+                \stdClass::class,
+                OopVisibilityType::class,
+            ]), BaseTestCase::class),
+        ];
+
+        yield[
+            TooManyChildClassesException::class,
+            [
+                \stdClass::class,
+            ],
+            sprintf($template, TooManyChildClassesException::class, implode("\n- ", [\stdClass::class]), TooManyChildClassesException::class),
+        ];
+    }
+}

tests/Exception/Regex/IncorrectColorHexLengthExceptionTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Regex;
+
+use Generator;
+use Meritoo\Common\Exception\Regex\IncorrectColorHexLengthException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while length of given hexadecimal value of color is incorrect
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class IncorrectColorHexLengthExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(IncorrectColorHexLengthException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $color           Incorrect hexadecimal value of color
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideColor
+     */
+    public function testConstructorMessage($color, $expectedMessage)
+    {
+        $exception = new IncorrectColorHexLengthException($color);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides incorrect hexadecimal value of color and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideColor()
+    {
+        $template = 'Length of hexadecimal value of color \'%s\' is incorrect. It\'s %d, but it should be 3 or 6. Is there everything ok?';
+
+        yield[
+            '',
+            sprintf($template, '', strlen('')),
+        ];
+
+        yield[
+            'aa-bb-cc',
+            sprintf($template, 'aa-bb-cc', strlen('aa-bb-cc')),
+        ];
+    }
+}

tests/Exception/Regex/InvalidColorHexValueExceptionTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Regex;
+
+use Generator;
+use Meritoo\Common\Exception\Regex\InvalidColorHexValueException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while given hexadecimal value of color is invalid
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class InvalidColorHexValueExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(InvalidColorHexValueException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $color           Invalid hexadecimal value of color
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideColor
+     */
+    public function testConstructorMessage($color, $expectedMessage)
+    {
+        $exception = new InvalidColorHexValueException($color);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides invalid hexadecimal value of color and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideColor()
+    {
+        $template = 'Hexadecimal value of color \'%s\' is invalid. Is there everything ok?';
+
+        yield[
+            '',
+            sprintf($template, ''),
+        ];
+
+        yield[
+            'aa-bb-cc',
+            sprintf($template, 'aa-bb-cc'),
+        ];
+    }
+}

tests/Exception/Regex/InvalidUrlExceptionTest.php

@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Regex;
+
+use Generator;
+use Meritoo\Common\Exception\Regex\InvalidUrlException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while url is invalid
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class InvalidUrlExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(InvalidUrlException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $url             Invalid url
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideUrl
+     */
+    public function testConstructorMessage($url, $expectedMessage)
+    {
+        $exception = new InvalidUrlException($url);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides invalid url and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideUrl()
+    {
+        $template = 'Url \'%s\' is invalid. Is there everything ok?';
+
+        yield[
+            'aa/bb/cc',
+            sprintf($template, 'aa/bb/cc'),
+        ];
+
+        yield[
+            'http:/images\show\car.jpg',
+            sprintf($template, 'http:/images\show\car.jpg'),
+        ];
+    }
+}

tests/Exception/Type/UnknownOopVisibilityTypeExceptionTest.php

@@ -0,0 +1,64 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Exception\Type;
+
+use Generator;
+use Meritoo\Common\Exception\Type\UnknownOopVisibilityTypeException;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Test case of an exception used while the visibility of a property, a method or (as of PHP 7.1.0) a constant is
+ * unknown
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class UnknownOopVisibilityTypeExceptionTest extends BaseTestCase
+{
+    public function testConstructorVisibilityAndArguments()
+    {
+        static::assertConstructorVisibilityAndArguments(UnknownOopVisibilityTypeException::class, OopVisibilityType::IS_PUBLIC, 1, 1);
+    }
+
+    /**
+     * @param string $unknownType     Unknown OOP-related visibility
+     * @param string $expectedMessage Expected exception's message
+     *
+     * @dataProvider provideUnknownType
+     */
+    public function testConstructorMessage($unknownType, $expectedMessage)
+    {
+        $exception = new UnknownOopVisibilityTypeException($unknownType);
+        static::assertEquals($expectedMessage, $exception->getMessage());
+    }
+
+    /**
+     * Provides path of the empty file and expected exception's message
+     *
+     * @return Generator
+     */
+    public function provideUnknownType()
+    {
+        $allTypes = (new OopVisibilityType())->getAll();
+
+        $template = 'The \'%s\' type of OOP-related visibility is unknown. Probably doesn\'t exist or there is a typo.'
+            . ' You should use one of these types: %s.';
+
+        yield[
+            '',
+            sprintf($template, '', implode(', ', $allTypes)),
+        ];
+
+        yield[
+            123,
+            sprintf($template, 123, implode(', ', $allTypes)),
+        ];
+    }
+}

tests/Test/Base/BaseTestCaseTest.php

@@ -0,0 +1,156 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Test\Base;
+
+use DateTime;
+use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+use Meritoo\Common\Utilities\GeneratorUtility;
+
+/**
+ * Test case of the base test case with common methods and data providers
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class BaseTestCaseTest extends BaseTestCase
+{
+    public function testConstructor()
+    {
+        static::assertConstructorVisibilityAndArguments(BaseTestCase::class, OopVisibilityType::IS_PUBLIC, 3);
+    }
+
+    public function testProvideEmptyValue()
+    {
+        $elements = [
+            [''],
+            ['   '],
+            [null],
+            [0],
+            [false],
+            [[]],
+        ];
+
+        $generator = (new SimpleTestCase())->provideEmptyValue();
+        self::assertEquals($elements, GeneratorUtility::getGeneratorElements($generator));
+    }
+
+    public function testProvideBooleanValue()
+    {
+        $elements = [
+            [false],
+            [true],
+        ];
+
+        $generator = (new SimpleTestCase())->provideBooleanValue();
+        self::assertEquals($elements, GeneratorUtility::getGeneratorElements($generator));
+    }
+
+    public function testProvideDateTimeInstance()
+    {
+        $elements = [
+            [new DateTime()],
+            [new DateTime('yesterday')],
+            [new DateTime('now')],
+            [new DateTime('tomorrow')],
+        ];
+
+        $generator = (new SimpleTestCase())->provideDateTimeInstance();
+        self::assertEquals($elements, GeneratorUtility::getGeneratorElements($generator));
+    }
+
+    public function testProvideDateTimeRelativeFormat()
+    {
+        $elements = [
+            ['now'],
+            ['yesterday'],
+            ['tomorrow'],
+            ['back of 10'],
+            ['front of 10'],
+            ['last day of February'],
+            ['first day of next month'],
+            ['last day of previous month'],
+            ['last day of next month'],
+            ['Y-m-d'],
+            ['Y-m-d 10:00'],
+        ];
+
+        $generator = (new SimpleTestCase())->provideDateTimeRelativeFormat();
+        self::assertEquals($elements, GeneratorUtility::getGeneratorElements($generator));
+    }
+
+    public function testProvideNotExistingFilePath()
+    {
+        $elements = [
+            ['lets-test.doc'],
+            ['lorem/ipsum.jpg'],
+            ['surprise/me/one/more/time.txt'],
+        ];
+
+        $generator = (new SimpleTestCase())->provideNotExistingFilePath();
+        self::assertEquals($elements, GeneratorUtility::getGeneratorElements($generator));
+    }
+
+    /**
+     * @param string $fileName      Name of file
+     * @param string $directoryPath Path of directory containing the file
+     *
+     * @dataProvider provideFileNameAndDirectoryPath
+     */
+    public function testGetFilePathForTesting($fileName, $directoryPath)
+    {
+        $path = (new SimpleTestCase())->getFilePathForTesting($fileName, $directoryPath);
+
+        if (!empty($directoryPath)) {
+            $directoryPath .= '/';
+        }
+
+        $expectedContains = sprintf('/.data/tests/%s%s', $directoryPath, $fileName);
+        static::assertContains($expectedContains, $path);
+    }
+
+    /**
+     * Provides name of file and path of directory containing the file
+     *
+     * @return Generator
+     */
+    public function provideFileNameAndDirectoryPath()
+    {
+        yield[
+            'abc.jpg',
+            '',
+        ];
+
+        yield[
+            'abc.def.jpg',
+            '',
+        ];
+
+        yield[
+            'abc.jpg',
+            'def',
+        ];
+
+        yield[
+            'abc.def.jpg',
+            'def',
+        ];
+    }
+}
+
+/**
+ * Simple test case
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class SimpleTestCase extends BaseTestCase
+{
+}

tests/Type/Base/BaseTypeTest.php

@@ -9,17 +9,22 @@
 namespace Meritoo\Common\Test\Type\Base;
 
 use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Type\Base\BaseType;
-use PHPUnit_Framework_TestCase;
 
 /**
- * Tests of the base / abstract type of something
+ * Test case of the base / abstract type of something
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class BaseTypeTest extends PHPUnit_Framework_TestCase
+class BaseTypeTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(BaseType::class);
+    }
+
     /**
      * @param BaseType $type          Type of something
      * @param array    $expectedTypes Expected concrete types of given instance of type

tests/Type/DatePartTypeTest.php

@@ -12,7 +12,7 @@ use Meritoo\Common\Test\Base\BaseTypeTestCase;
 use Meritoo\Common\Type\DatePartType;
 
 /**
- * Tests of the type of date part, e.g. "year"
+ * Test case of the type of date part, e.g. "year"
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl

tests/Utilities/ArraysTest.php

@@ -8,16 +8,16 @@
 
 namespace Meritoo\Common\Test\Utilities;
 
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Arrays;
-use PHPUnit_Framework_TestCase;
 
 /**
- * Tests of the useful arrays methods
+ * Test case of the useful arrays methods
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class ArraysTest extends PHPUnit_Framework_TestCase
+class ArraysTest extends BaseTestCase
 {
     private $simpleArray;
     private $simpleArrayWithKeys;
@@ -25,6 +25,11 @@ class ArraysTest extends PHPUnit_Framework_TestCase
     private $complexArray;
     private $superComplexArray;
 
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Arrays::class);
+    }
+
     public function testValues2string()
     {
         /*

tests/Utilities/BundleTest.php

@@ -8,17 +8,22 @@
 
 namespace Meritoo\Common\Test\Utilities;
 
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Bundle;
-use PHPUnit_Framework_TestCase;
 
 /**
- * Tests of the useful methods for bundle
+ * Test case of the useful methods for bundle
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class BundleTest extends PHPUnit_Framework_TestCase
+class BundleTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Bundle::class);
+    }
+
     public function testGetBundleViewPathEmptyPathAndBundle()
     {
         self::assertNull(Bundle::getBundleViewPath('', ''));

tests/Utilities/ComposerTest.php

@@ -13,7 +13,7 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Composer;
 
 /**
- * Tests of the useful Composer-related methods
+ * Test case of the useful Composer-related methods
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
@@ -27,6 +27,11 @@ class ComposerTest extends BaseTestCase
      */
     private $composerJsonPath;
 
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Composer::class);
+    }
+
     /**
      * @param string $composerJsonPath Empty value, e.g. ""
      * @dataProvider provideEmptyValue
@@ -83,6 +88,6 @@ class ComposerTest extends BaseTestCase
     {
         parent::setUp();
 
-        $this->composerJsonPath = $this->getFilePathToTests(Composer::FILE_NAME_MAIN);
+        $this->composerJsonPath = $this->getFilePathForTesting(Composer::FILE_NAME_MAIN);
     }
 }

tests/Utilities/DatePeriodTest.php

@@ -15,7 +15,7 @@ use Meritoo\Common\Type\OopVisibilityType;
 use Meritoo\Common\Utilities\DatePeriod;
 
 /**
- * Tests of date's period
+ * Test case of date's period
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
@@ -24,7 +24,7 @@ class DatePeriodTest extends BaseTestCase
 {
     public function testConstructorVisibilityAndArguments()
     {
-        $this->verifyConstructorVisibilityAndArguments(DatePeriod::class, OopVisibilityType::IS_PUBLIC, 2, 0);
+        static::assertConstructorVisibilityAndArguments(DatePeriod::class, OopVisibilityType::IS_PUBLIC, 2, 0);
     }
 
     /**

tests/Utilities/DateTest.php

@@ -16,13 +16,18 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Date;
 
 /**
- * Tests of the Date methods (only static functions)
+ * Test case of the Date methods (only static functions)
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class DateTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Date::class);
+    }
+
     /**
      * @param mixed $value Empty value, e.g. ""
      * @dataProvider provideEmptyValue
@@ -218,7 +223,7 @@ class DateTest extends BaseTestCase
      */
     public function testGetDayOfWeekIncorrectValues($year, $month, $day)
     {
-        $this->expectException(UnknownDatePartTypeException::class);
+        $this->setExpectedException(UnknownDatePartTypeException::class);
         self::assertEmpty(Date::getDayOfWeek($year, $month, $day));
     }
 
@@ -454,8 +459,11 @@ class DateTest extends BaseTestCase
         $start = 1;
         $end = 100;
 
-        $intervalMinDate = (clone $startDate)->add(new DateInterval(sprintf('P%dD', $start)));
+        $minDate = clone $startDate;
-        $intervalMaxDate = (clone $startDate)->add(new DateInterval(sprintf('P%dD', $end)));
+        $maxDate = clone $startDate;
+
+        $intervalMinDate = $minDate->add(new DateInterval(sprintf('P%dD', $start)));
+        $intervalMaxDate = $maxDate->add(new DateInterval(sprintf('P%dD', $end)));
 
         $randomDate = Date::getRandomDate();
         self::assertTrue($randomDate >= $intervalMinDate && $randomDate <= $intervalMaxDate);
@@ -471,7 +479,9 @@ class DateTest extends BaseTestCase
     public function testGetRandomDateIncorrectEnd(DateTime $startDate, $start, $end)
     {
         $randomDate = Date::getRandomDate($startDate, $start, $end);
-        $intervalDate = (clone $startDate)->add(new DateInterval(sprintf('P%dD', $start)));
+
+        $cloned = clone $startDate;
+        $intervalDate = $cloned->add(new DateInterval(sprintf('P%dD', $start)));
 
         self::assertTrue($randomDate >= $intervalDate && $randomDate <= $intervalDate);
     }
@@ -487,8 +497,11 @@ class DateTest extends BaseTestCase
     {
         $randomDate = Date::getRandomDate($startDate, $start, $end);
 
-        $intervalMinDate = (clone $startDate)->add(new DateInterval(sprintf('P%dD', $start)));
+        $minDate = clone $startDate;
-        $intervalMaxDate = (clone $startDate)->add(new DateInterval(sprintf('P%dD', $end)));
+        $maxDate = clone $startDate;
+
+        $intervalMinDate = $minDate->add(new DateInterval(sprintf('P%dD', $start)));
+        $intervalMaxDate = $maxDate->add(new DateInterval(sprintf('P%dD', $end)));
 
         self::assertTrue($randomDate >= $intervalMinDate && $randomDate <= $intervalMaxDate);
     }

tests/Utilities/GeneratorUtilityTest.php

@@ -12,13 +12,18 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\GeneratorUtility;
 
 /**
- * Tests of the useful methods for the Generator class
+ * Test case of the useful methods for the Generator class
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class GeneratorUtilityTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(GeneratorUtility::class);
+    }
+
     public function testGetGeneratorElements()
     {
         /*

tests/Utilities/LocaleTest.php

@@ -13,13 +13,18 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Locale;
 
 /**
- * Tests of the useful locale methods
+ * Test case of the useful locale methods
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class LocaleTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Locale::class);
+    }
+
     /**
      * @param mixed $languageCode Empty value, e.g. ""
      * @dataProvider provideEmptyValue

tests/Utilities/MimeTypesTest.php

@@ -13,13 +13,18 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\MimeTypes;
 
 /**
- * Tests of the useful methods for mime types of files
+ * Test case of the useful methods for mime types of files
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class MimeTypesTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(MimeTypes::class);
+    }
+
     /**
      * @param mixed $mimeType Empty value, e.g. ""
      * @dataProvider provideEmptyValue
@@ -442,12 +447,12 @@ class MimeTypesTest extends BaseTestCase
     public function provideFilePathToGetMimeTypeOfRealFile()
     {
         yield[
-            $this->getFilePathToTests('minion.jpg'),
+            $this->getFilePathForTesting('minion.jpg'),
             'image/jpeg',
         ];
 
         yield[
-            $this->getFilePathToTests('lorem-ipsum.txt'),
+            $this->getFilePathForTesting('lorem-ipsum.txt'),
             'text/plain',
         ];
     }
@@ -460,12 +465,12 @@ class MimeTypesTest extends BaseTestCase
     public function provideExistingFilePathToCheckIsImagePath()
     {
         yield[
-            $this->getFilePathToTests('minion.jpg'),
+            $this->getFilePathForTesting('minion.jpg'),
             true,
         ];
 
         yield[
-            $this->getFilePathToTests('lorem-ipsum.txt'),
+            $this->getFilePathForTesting('lorem-ipsum.txt'),
             false,
         ];
     }

tests/Utilities/MiscellaneousTest.php

@@ -17,7 +17,7 @@ use Meritoo\Common\Utilities\Miscellaneous;
 use stdClass;
 
 /**
- * Tests of the Miscellaneous methods (only static functions)
+ * Test case of the Miscellaneous methods (only static functions)
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
@@ -28,6 +28,11 @@ class MiscellaneousTest extends BaseTestCase
     private $stringCommaSeparated;
     private $stringDotSeparated;
 
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Miscellaneous::class);
+    }
+
     public function testGetDirectoryContent()
     {
         $directoryPath = __DIR__ . '/../';
@@ -154,8 +159,8 @@ class MiscellaneousTest extends BaseTestCase
         $expected = "int(123)\n";
 
         if ($xdebugLoaded) {
-            $libraryPath = realpath(sprintf('%s%s', dirname(__FILE__), '/../../../../..'));
+            $libraryPath = realpath(sprintf('%s%s', dirname(__FILE__), '/../..'));
-            $filePath = sprintf('%s%s', $libraryPath, '/src/Meritoo/Common/Utilities/Miscellaneous.php:');
+            $filePath = sprintf('%s%s', $libraryPath, '/src/Utilities/Miscellaneous.php:');
 
             /*
              * Attention. I have to use "\d+" at the end of $filePath, because number of line may be different if new
@@ -503,16 +508,35 @@ class MiscellaneousTest extends BaseTestCase
         self::assertEquals('lorem ipsum', Miscellaneous::trimSmart(' lorem ipsum     '));
     }
 
-    public function testConcatenatePaths()
+    /**
+     * @param mixed $emptyPaths Empty paths co concatenate
+     * @dataProvider provideEmptyValue
+     */
+    public function testConcatenatePathsWithEmptyPaths($emptyPaths)
+    {
+        self::assertEquals('', Miscellaneous::concatenatePaths($emptyPaths));
+    }
+
+    public function testConcatenatePathsWithOneEmptyPath()
+    {
+        $paths = [
+            'first/directory',
+            'second/one',
+            '',
+            'and/the/third',
+        ];
+
+        $concatenated = Miscellaneous::concatenatePaths($paths);
+        unset($paths[2]);
+        $imploded = implode('/', $paths);
+
+        self::assertEquals('/' . $imploded, $concatenated);
+    }
+
+    public function testConcatenatePathsInNixOs()
     {
         /*
-         * Common cases
+         * For *nix operating system
-         */
-        self::assertEquals('', Miscellaneous::concatenatePaths(null));
-        self::assertEquals('', Miscellaneous::concatenatePaths([]));
-
-        /*
-         * *nix operating system
          */
         $paths1 = [
             'first/directory',
@@ -522,7 +546,10 @@ class MiscellaneousTest extends BaseTestCase
 
         self::assertEquals('/' . implode('/', $paths1), Miscellaneous::concatenatePaths($paths1));
         self::assertEquals('/' . implode('/', $paths1), Miscellaneous::concatenatePaths($paths1[0], $paths1[1], $paths1[2]));
+    }
 
+    public function testConcatenatePathsInWindowsOs()
+    {
         /*
          * For Windows operating system
          */
@@ -636,7 +663,8 @@ class MiscellaneousTest extends BaseTestCase
 
     public function testGetInvertedColorWithIncorrectLength()
     {
-        $this->expectException(IncorrectColorHexLengthException::class);
+        $this->setExpectedException(IncorrectColorHexLengthException::class);
+
         Miscellaneous::getInvertedColor(null);
         Miscellaneous::getInvertedColor('');
         Miscellaneous::getInvertedColor(1);
@@ -649,7 +677,8 @@ class MiscellaneousTest extends BaseTestCase
 
     public function testGetInvertedColorWithInvalidValue()
     {
-        $this->expectException(InvalidColorHexValueException::class);
+        $this->setExpectedException(InvalidColorHexValueException::class);
+
         Miscellaneous::getInvertedColor('0011zz');
         Miscellaneous::getInvertedColor('001#zz');
         Miscellaneous::getInvertedColor('001!zz');
@@ -720,6 +749,11 @@ class MiscellaneousTest extends BaseTestCase
         self::assertSame($expected, Miscellaneous::fillMissingZeros($number, $length, $before));
     }
 
+    public function testGetProjectRootPath()
+    {
+        self::assertNotEmpty(Miscellaneous::getProjectRootPath());
+    }
+
     /**
      * Provides string to convert characters to latin characters and not lower cased and not human-readable
      *

tests/Utilities/Reflection/A.php

@@ -19,8 +19,15 @@ class A
 {
     use E;
 
+    private $count = 1;
+
     protected function lorem()
     {
         return 'ipsum';
     }
+
+    protected function getCount()
+    {
+        return $this->count;
+    }
 }

tests/Utilities/Reflection/B.php

@@ -17,4 +17,10 @@ namespace Meritoo\Common\Test\Utilities\Reflection;
  */
 class B extends A
 {
+    protected $name = 'Lorem Ipsum';
+
+    public function getName()
+    {
+        return $this->name;
+    }
 }

tests/Utilities/Reflection/F.php

@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Utilities\Reflection;
+
+/**
+ * The F class.
+ * Used for testing the Reflection class.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class F
+{
+    protected $username;
+    private $accountBalance;
+    private $city;
+    private $country;
+    private $gInstance;
+
+    public function __construct($accountBalance, $city, $country, $username, $firstName = 'John', $lastName = 'Scott')
+    {
+        $this->accountBalance = $accountBalance;
+        $this->city = $city;
+        $this->country = $country;
+        $this->username = $username;
+        $this->gInstance = new G($firstName, $lastName);
+
+        /*
+         * Called to avoid "Unused private method getAccountBalance" warning only
+         */
+        $this->getAccountBalance();
+    }
+
+    public function getCountry()
+    {
+        return $this->country;
+    }
+
+    protected function getCity()
+    {
+        return $this->city;
+    }
+
+    private function getAccountBalance()
+    {
+        return $this->accountBalance;
+    }
+}

tests/Utilities/Reflection/G.php

@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Test\Utilities\Reflection;
+
+/**
+ * The G class.
+ * Used for testing the Reflection class.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class G
+{
+    private $firstName;
+    private $lastName;
+
+    public function __construct($firstName = 'John', $lastName = 'Scott')
+    {
+        $this->firstName = $firstName;
+        $this->lastName = $lastName;
+    }
+
+    public function getFirstName()
+    {
+        return $this->firstName;
+    }
+
+    public function getLastName()
+    {
+        return $this->lastName;
+    }
+}

tests/Utilities/ReflectionTest.php

@@ -10,6 +10,7 @@ namespace Meritoo\Common\Test\Utilities;
 
 use DateTime;
 use Generator;
+use Meritoo\Common\Collection\Collection;
 use Meritoo\Common\Exception\Reflection\CannotResolveClassNameException;
 use Meritoo\Common\Exception\Reflection\MissingChildClassesException;
 use Meritoo\Common\Exception\Reflection\TooManyChildClassesException;
@@ -19,16 +20,24 @@ use Meritoo\Common\Test\Utilities\Reflection\B;
 use Meritoo\Common\Test\Utilities\Reflection\C;
 use Meritoo\Common\Test\Utilities\Reflection\D;
 use Meritoo\Common\Test\Utilities\Reflection\E;
+use Meritoo\Common\Test\Utilities\Reflection\F;
+use Meritoo\Common\Test\Utilities\Reflection\G;
 use Meritoo\Common\Utilities\Reflection;
+use ReflectionProperty;
 
 /**
- * Tests of the useful reflection methods
+ * Test case of the useful reflection methods
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class ReflectionTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Reflection::class);
+    }
+
     /**
      * @param mixed $invalidClass Empty value, e.g. ""
      * @dataProvider provideEmptyValue
@@ -113,7 +122,7 @@ class ReflectionTest extends BaseTestCase
      */
     public function testGetChildClassesInvalidClass($invalidClass)
     {
-        $this->expectException(CannotResolveClassNameException::class);
+        $this->setExpectedException(CannotResolveClassNameException::class);
 
         self::assertNull(Reflection::getChildClasses($invalidClass));
         self::assertNull(Reflection::getChildClasses(123));
@@ -121,7 +130,7 @@ class ReflectionTest extends BaseTestCase
 
     public function testGetChildClassesNotExistingClass()
     {
-        $this->expectException(CannotResolveClassNameException::class);
+        $this->setExpectedException(CannotResolveClassNameException::class);
         self::assertEquals('', Reflection::getChildClasses('xyz'));
     }
 
@@ -152,13 +161,13 @@ class ReflectionTest extends BaseTestCase
 
     public function testGetOneChildClassWithMissingChildClasses()
     {
-        $this->expectException(MissingChildClassesException::class);
+        $this->setExpectedException(MissingChildClassesException::class);
         self::assertEquals('LoremIpsum', Reflection::getOneChildClass(C::class));
     }
 
     public function testGetOneChildClassWithTooManyChildClasses()
     {
-        $this->expectException(TooManyChildClassesException::class);
+        $this->setExpectedException(TooManyChildClassesException::class);
 
         self::assertEquals(B::class, Reflection::getOneChildClass(A::class));
         self::assertEquals(C::class, Reflection::getOneChildClass(A::class));
@@ -171,11 +180,11 @@ class ReflectionTest extends BaseTestCase
 
     public function testGetMethods()
     {
-        self::assertEquals(0, count(Reflection::getMethods(B::class, true)));
+        self::assertEquals(1, count(Reflection::getMethods(B::class, true)));
-        self::assertEquals(1, count(Reflection::getMethods(B::class)));
+        self::assertEquals(3, count(Reflection::getMethods(B::class)));
-        self::assertEquals(1, count(Reflection::getMethods(A::class)));
+        self::assertEquals(2, count(Reflection::getMethods(A::class)));
         self::assertEquals(2, count(Reflection::getMethods(C::class, true)));
-        self::assertEquals(3, count(Reflection::getMethods(C::class)));
+        self::assertEquals(5, count(Reflection::getMethods(C::class)));
     }
 
     /**
@@ -186,7 +195,7 @@ class ReflectionTest extends BaseTestCase
      */
     public function testUsesTraitInvalidClass($class, $trait)
     {
-        $this->expectException(CannotResolveClassNameException::class);
+        $this->setExpectedException(CannotResolveClassNameException::class);
         self::assertNull(Reflection::usesTrait($class, $trait));
     }
 
@@ -196,7 +205,7 @@ class ReflectionTest extends BaseTestCase
      */
     public function testUsesTraitInvalidTrait($trait)
     {
-        $this->expectException(CannotResolveClassNameException::class);
+        $this->setExpectedException(CannotResolveClassNameException::class);
         self::assertNull(Reflection::usesTrait(DateTime::class, $trait));
     }
 
@@ -216,6 +225,160 @@ class ReflectionTest extends BaseTestCase
         self::assertFalse(Reflection::usesTrait(D::class, E::class, true));
     }
 
+    public function testGetProperties()
+    {
+        self::assertCount(1, Reflection::getProperties(B::class));
+    }
+
+    public function testGetPropertiesUsingFilter()
+    {
+        self::assertCount(1, Reflection::getProperties(B::class, ReflectionProperty::IS_PROTECTED));
+        self::assertCount(0, Reflection::getProperties(B::class, ReflectionProperty::IS_PRIVATE));
+        self::assertCount(1, Reflection::getProperties(B::class, ReflectionProperty::IS_PRIVATE, true));
+    }
+
+    public function testGetPropertiesWithParents()
+    {
+        self::assertCount(2, Reflection::getProperties(B::class, null, true));
+    }
+
+    public function testGetPropertyValueOfNotExistingProperty()
+    {
+        self::assertNull(Reflection::getPropertyValue(new D(), 'something'));
+        self::assertNull(Reflection::getPropertyValue(new D(), 'something', true));
+    }
+
+    public function testGetPropertyValueFromChain()
+    {
+        $f = new F(1000, 'New York', 'USA', 'john.scott');
+        self::assertEquals('John', Reflection::getPropertyValue($f, 'gInstance.firstName'));
+    }
+
+    public function testGetPropertyValueWithPublicGetter()
+    {
+        $country = 'USA';
+        $f = new F(1000, 'New York', $country, 'john.scott');
+
+        self::assertEquals($country, Reflection::getPropertyValue($f, 'country'));
+    }
+
+    public function testGetPropertyValueWithProtectedGetter()
+    {
+        $city = 'New York';
+        $f = new F(1000, $city, 'USA', 'john.scott');
+
+        self::assertEquals($city, Reflection::getPropertyValue($f, 'city'));
+    }
+
+    public function testGetPropertyValueWithPrivateGetter()
+    {
+        $accountBalance = 1000;
+        $f = new F($accountBalance, 'New York', 'USA', 'john.scott');
+
+        self::assertEquals($accountBalance, Reflection::getPropertyValue($f, 'accountBalance'));
+    }
+
+    public function testGetPropertyValueWithoutGetter()
+    {
+        $username = 'john.scott';
+        $f = new F(1000, 'New York', 'USA', $username);
+
+        self::assertEquals($username, Reflection::getPropertyValue($f, 'username'));
+    }
+
+    public function testGetPropertyValuesFromEmptySource()
+    {
+        self::assertEquals([], Reflection::getPropertyValues([], 'something'));
+        self::assertEquals([], Reflection::getPropertyValues(new Collection(), 'something'));
+    }
+
+    public function testGetPropertyValuesOfNotExistingPropertyFromSingleObject()
+    {
+        self::assertEquals([], Reflection::getPropertyValues(new D(), 'something'));
+        self::assertEquals([], Reflection::getPropertyValues(new D(), 'something', true));
+    }
+
+    public function testGetPropertyValuesOfNotExistingPropertyFromMultipleObjects()
+    {
+        $objects = [
+            new A(),
+            new A(),
+            new A(),
+            new B(),
+            new B(),
+            new C(),
+            new D(),
+        ];
+
+        self::assertEquals([], Reflection::getPropertyValues($objects, 'something'));
+        self::assertEquals([], Reflection::getPropertyValues($objects, 'something', true));
+
+        $collection = new Collection($objects);
+
+        self::assertEquals([], Reflection::getPropertyValues($collection, 'something'));
+        self::assertEquals([], Reflection::getPropertyValues($collection, 'something', true));
+    }
+
+    public function testGetPropertyValuesOfExistingPropertyFromSingleObject()
+    {
+        self::assertEquals(['John'], Reflection::getPropertyValues(new G(), 'firstName'));
+        self::assertEquals(['John'], Reflection::getPropertyValues(new G(), 'firstName', true));
+    }
+
+    public function testGetPropertyValuesOfExistingPropertyFromMultipleObjects()
+    {
+        $expected = [
+            'New York',
+            'London',
+            'Tokyo',
+        ];
+
+        $objects = [
+            new F(1000, 'New York', 'USA', 'john.scott'),
+            new F(2000, 'London', 'GB', 'john.scott'),
+            new F(3000, 'Tokyo', 'Japan', 'john.scott'),
+        ];
+
+        self::assertEquals($expected, Reflection::getPropertyValues($objects, 'city'));
+        self::assertEquals($expected, Reflection::getPropertyValues($objects, 'city', true));
+
+        $collection = new Collection($objects);
+
+        self::assertEquals($expected, Reflection::getPropertyValues($collection, 'city'));
+        self::assertEquals($expected, Reflection::getPropertyValues($collection, 'city', true));
+    }
+
+    public function testGetPropertyValuesFromChainAndSingleObject()
+    {
+        $f = new F(1000, 'New York', 'USA', 'john.scott');
+
+        self::assertEquals(['John'], Reflection::getPropertyValues($f, 'gInstance.firstName'));
+        self::assertEquals(['John'], Reflection::getPropertyValues($f, 'gInstance.firstName', true));
+    }
+
+    public function testGetPropertyValuesFromChainAndMultipleObjects()
+    {
+        $expected = [
+            'John',
+            'Mary',
+            'Peter',
+        ];
+
+        $objects = [
+            new F(1000, 'New York', 'USA', 'john.scott'),
+            new F(2000, 'London', 'GB', 'john.scott', 'Mary', 'Jane'),
+            new F(3000, 'Tokyo', 'Japan', 'john.scott', 'Peter', 'Brown'),
+        ];
+
+        self::assertEquals($expected, Reflection::getPropertyValues($objects, 'gInstance.firstName'));
+        self::assertEquals($expected, Reflection::getPropertyValues($objects, 'gInstance.firstName', true));
+
+        $collection = new Collection($objects);
+
+        self::assertEquals($expected, Reflection::getPropertyValues($collection, 'gInstance.firstName'));
+        self::assertEquals($expected, Reflection::getPropertyValues($collection, 'gInstance.firstName', true));
+    }
+
     /**
      * Provides invalid class and trait
      *

tests/Utilities/RegexTest.php

@@ -8,18 +8,24 @@
 
 namespace Meritoo\Common\Utilities;
 
+use Meritoo\Common\Test\Base\BaseTestCase;
+
 /**
- * Tests of the useful regular expressions methods
+ * Test case of the useful regular expressions methods
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class RegexTest extends \PHPUnit_Framework_TestCase
+class RegexTest extends BaseTestCase
 {
     private $simpleText;
-
     private $camelCaseText;
 
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Regex::class);
+    }
+
     public function testGetCamelCaseParts()
     {
         $parts = [];

tests/Utilities/UriTest.php

@@ -12,13 +12,18 @@ use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Uri;
 
 /**
- * Tests of the useful uri methods (only static functions)
+ * Test case of the useful uri methods (only static functions)
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
 class UriTest extends BaseTestCase
 {
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Uri::class);
+    }
+
     public function testAddProtocolToUrl()
     {
         $http = 'http';

tests/Utilities/XmlTest.php

@@ -8,21 +8,26 @@
 
 namespace Meritoo\Common\Test\Utilities;
 
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Xml;
-use PHPUnit_Framework_TestCase;
 use SimpleXMLElement;
 
 /**
- * Tests of the useful XML-related methods (only static functions)
+ * Test case of the useful XML-related methods (only static functions)
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
  */
-class XmlTest extends PHPUnit_Framework_TestCase
+class XmlTest extends BaseTestCase
 {
     private $simpleXml;
     private $advancedXml;
 
+    public function testConstructor()
+    {
+        static::assertHasNoConstructor(Xml::class);
+    }
+
     public function testMergeNodes()
     {
         /*