Readme - add badges - TravisCI, Packagist, StyleCI, GitHub commits, GitHub license, Coverage

Readme - update usage information and add examples
BaseTestCase - fix typo
2026-03-12 09:31:51 +01:00 · 2017-09-19 17:10:03 +02:00 · 2017-09-19 17:06:29 +02:00 · 2017-09-16 14:06:19 +02:00 · 2017-09-16 14:02:10 +02:00 · 2017-09-16 14:01:20 +02:00
55 changed files with 1258 additions and 659 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -54,60 +54,9 @@


 # ----------------------------------------------------------------------------------------------------------------------
-### JetBrains template
+### JetBrains
 # ----------------------------------------------------------------------------------------------------------------------
-# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
-# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
-
-# User-specific stuff:
-.idea/**/workspace.xml
-.idea/**/tasks.xml
-.idea/dictionaries
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-.idea/jsLibraryMappings.xml
-
-# Sensitive or high-churn files:
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-.idea/**/dataSources.ids
-.idea/**/dataSources.xml
-.idea/**/dataSources.local.xml
-.idea/**/sqlDataSources.xml
-.idea/**/dynamic.xml
-.idea/**/uiDesigner.xml
-
-# Gradle:
-.idea/**/gradle.xml
-.idea/**/libraries
-
-# CMake
-cmake-build-debug/
-
-# Mongo Explorer plugin:
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-
-## File-based project format:
-*.iws
-
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-
-# IntelliJ
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-
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-
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-
-# Cursive Clojure plugin
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-
-# Crashlytics plugin (for Android Studio and IntelliJ)
-com_crashlytics_export_strings.xml
-crashlytics.properties
-crashlytics-build.properties
-fabric.properties
-
+/.idea


 # ----------------------------------------------------------------------------------------------------------------------
--- a/.idea/.name
+++ b/.idea/.name
@@ -1 +0,0 @@
-Common Library (GitHub)
--- a/(GitHub).iml
+++ b/(GitHub).iml
@@ -1,210 +0,0 @@
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@@ -1,9 +0,0 @@
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+++ b/.styleci.yml
@@ -0,0 +1 @@
+preset: symfony
--- a/.travis.yml
+++ b/.travis.yml
@@ -0,0 +1,6 @@
+language: php
+
+php:
+  - 5.6
+  - 7.1
+  - nightly
--- a/README.md
+++ b/README.md
@@ -1,22 +1,9 @@
-# Meritoo Common Library
+# Meritoo Common Library [![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)
 Useful classes, methods, extensions etc.

 ## Installation

-#### Composer
-
-1. Open ```composer.json``` and add address of repository in ```repositories``` section:
-
-    ```json
-	"repositories": [
-		{
-			"type": "vcs",
-			"url": "git@github.com:meritoo/common-library.git"
-		}
-	]
-	```
-
-2. Run [Composer](https://getcomposer.org) to install new package:
+Run [Composer](https://getcomposer.org) to install new package:

    ```bash
    $ composer require meritoo/common-library
@@ -24,15 +11,93 @@ Useful classes, methods, extensions etc.

 > How to install Composer: https://getcomposer.org/download

-## Usage
+## Static methods

-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:
+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;

-$firstElement = Arrays::getFirstElement(['lorem' 'ipsum']);
-// result: "lorem"
+$firstElement = Arrays::getFirstElement(['lorem', 'ipsum']);
+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!
--- a/build.xml
+++ b/build.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="Meritoo Common Library" basedir="." default="build:main" phingVersion="2.14.0">
+<project name="Meritoo Package" basedir="." default="build:main" phingVersion="2.14.0">
    <!-- Properties -->
    <if>
        <available file="phing/properties" property="custom.properties.available"/>
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
    "name": "meritoo/common-library",
    "description": "Useful classes, methods, extensions etc.",
    "license": "MIT",
-    "version": "0.0.1",
+    "version": "0.0.6",
    "authors": [
        {
            "name": "Meritoo.pl",
@@ -28,7 +28,7 @@
    "autoload": {
        "psr-4": {
            "Meritoo\\Common\\": "src/Meritoo/Common/",
-            "Meritoo\\Common\\Tests\\": "tests/Meritoo/Common/Tests/"
+            "Meritoo\\Common\\Test\\": "tests/Meritoo/Common/Test/"
        }
    }
 }
--- a/phing/app.xml
+++ b/phing/app.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="Meritoo Common Library" basedir="." default="build:main" phingVersion="2.14.0">
+<project name="Meritoo Package" basedir="." default="build:main" phingVersion="2.14.0">
    <!-- Properties -->
    <if>
        <available file="phing/properties" property="custom.properties.available"/>
--- a/phing/tests.xml
+++ b/phing/tests.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="Meritoo Common Library" basedir="." default="build:main" phingVersion="2.14.0">
+<project name="Meritoo Package" basedir="." default="build:main" phingVersion="2.14.0">
    <!--
    The AutoloaderTask is required to load binaries installed by Composer.
    The "autoloaderpath" attribute of this task is not required, because it's default value is: vendor/autoload.php.
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -12,7 +12,7 @@
         bootstrap="./vendor/autoload.php"
 >
    <testsuites>
-        <testsuite name="Meritoo's Common Library Test Suite">
+        <testsuite name="Meritoo Package - Main Test Suite">
            <directory>./tests/</directory>
        </testsuite>
    </testsuites>
--- a/src/Meritoo/Common/Collection/Collection.php
+++ b/src/Meritoo/Common/Collection/Collection.php
@@ -0,0 +1,284 @@
+<?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\Collection;
+
+use ArrayAccess;
+use ArrayIterator;
+use Countable;
+use IteratorAggregate;
+use Meritoo\Common\Utilities\Arrays;
+
+/**
+ * Collection of elements.
+ * It's a set of some elements, e.g. objects.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class Collection implements Countable, ArrayAccess, IteratorAggregate
+{
+    /**
+     * The elements of collection
+     *
+     * @var array
+     */
+    private $elements;
+
+    /**
+     * Class constructor
+     *
+     * @param array $elements (optional) The elements of collection
+     */
+    public function __construct(array $elements = [])
+    {
+        $this->elements = $elements;
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface Countable
+     */
+    public function count()
+    {
+        return count($this->elements);
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface ArrayAccess
+     */
+    public function offsetExists($offset)
+    {
+        return $this->exists($offset);
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface ArrayAccess
+     */
+    public function offsetGet($offset)
+    {
+        if ($this->exists($offset)) {
+            return $this->elements[$offset];
+        }
+
+        return null;
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface ArrayAccess
+     */
+    public function offsetSet($offset, $value)
+    {
+        $this->elements[$offset] = $value;
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface ArrayAccess
+     */
+    public function offsetUnset($offset)
+    {
+        if ($this->exists($offset)) {
+            unset($this->elements[$offset]);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     * Required by interface IteratorAggregate
+     */
+    public function getIterator()
+    {
+        return new ArrayIterator($this->elements);
+    }
+
+    /**
+     * Adds given element (at the end of collection)
+     *
+     * @param mixed $element The element to add
+     * @param mixed $index   (optional) Index / key of the element
+     * @return $this
+     */
+    public function add($element, $index = null)
+    {
+        if ($index === null) {
+            $this->elements[] = $element;
+        } else {
+            $this->elements[$index] = $element;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds given elements (at the end of collection)
+     *
+     * @param array|Collection $elements   The elements to add
+     * @param bool|false       $useIndexes (optional) If is set to true, indexes of given elements will be used in
+     *                                     this collection. Otherwise - not.
+     * @return $this
+     */
+    public function addMultiple($elements, $useIndexes = false)
+    {
+        if (!empty($elements)) {
+            foreach ($elements as $index => $element) {
+                if (!$useIndexes) {
+                    $index = null;
+                }
+
+                $this->add($element, $index);
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * Prepends given element (adds given element at the beginning of collection)
+     *
+     * @param mixed $element The element to prepend
+     * @return $this
+     */
+    public function prepend($element)
+    {
+        array_unshift($this->elements, $element);
+
+        return $this;
+    }
+
+    /**
+     * Removes given element
+     *
+     * @param mixed $element The element to remove
+     * @return $this
+     */
+    public function remove($element)
+    {
+        if ($this->count() > 0) {
+            foreach ($this->elements as $index => $existing) {
+                if ($element === $existing) {
+                    unset($this->elements[$index]);
+                    break;
+                }
+            }
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns information if collection is empty
+     *
+     * @return bool
+     */
+    public function isEmpty()
+    {
+        return empty($this->elements);
+    }
+
+    /**
+     * Returns information if given element is first in the collection
+     *
+     * @param mixed $element The element to verify
+     * @return bool
+     */
+    public function isFirst($element)
+    {
+        return reset($this->elements) === $element;
+    }
+
+    /**
+     * Returns information if given element is last in the collection
+     *
+     * @param mixed $element The element to verify
+     * @return bool
+     */
+    public function isLast($element)
+    {
+        return end($this->elements) === $element;
+    }
+
+    /**
+     * Returns information if the collection has given element, iow. if given element exists in the collection
+     *
+     * @param mixed $element The element to verify
+     * @return bool
+     */
+    public function has($element)
+    {
+        $index = Arrays::getIndexOf($this->elements, $element);
+
+        return $index !== null && $index !== false;
+    }
+
+    /**
+     * Returns previous element for given element
+     *
+     * @param mixed $element The element to verify
+     * @return mixed|null
+     */
+    public function getPrevious($element)
+    {
+        return Arrays::getPreviousElement($this->elements, $element);
+    }
+
+    /**
+     * Returns next element for given element
+     *
+     * @param mixed $element The element to verify
+     * @return mixed|null
+     */
+    public function getNext($element)
+    {
+        return Arrays::getNextElement($this->elements, $element);
+    }
+
+    /**
+     * Returns the first element in the collection
+     *
+     * @return mixed
+     */
+    public function getFirst()
+    {
+        return Arrays::getFirstElement($this->elements);
+    }
+
+    /**
+     * Returns the last element in the collection
+     *
+     * @return mixed
+     */
+    public function getLast()
+    {
+        return Arrays::getLastElement($this->elements);
+    }
+
+    /**
+     * Returns an array representation of the collection
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        return $this->elements;
+    }
+
+    /**
+     * Returns information if element with given index/key exists
+     *
+     * @param string|int $index The index/key of element
+     * @return bool
+     */
+    private function exists($index)
+    {
+        return isset($this->elements[$index]) || array_key_exists($index, $this->elements);
+    }
+}
--- a/src/Meritoo/Common/Exception/Date/IncorrectDatePartException.php
+++ b/src/Meritoo/Common/Exception/Date/IncorrectDatePartException.php
@@ -1,32 +0,0 @@
-<?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\Date;
-
-use Exception;
-
-/**
- * An exception used while given part of date is incorrect, e.g. value of year is incorrect
- *
- * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
- * @copyright Meritoo.pl
- */
-class IncorrectDatePartException extends Exception
-{
-    /**
-     * Class constructor
-     *
-     * @param string $value    Incorrect value
-     * @param string $datePart Type of date part, e.g. "year". One of \Meritoo\Common\Type\DatePartType class constants.
-     */
-    public function __construct($value, $datePart)
-    {
-        $message = sprintf('Value of %s \'%s\' is incorrect. Is there everything ok?', $datePart, $value);
-        parent::__construct($message);
-    }
-}
--- a/src/Meritoo/Common/Exception/Date/UnknownDatePartTypeException.php
+++ b/src/Meritoo/Common/Exception/Date/UnknownDatePartTypeException.php
@@ -0,0 +1,32 @@
+<?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\Date;
+
+use Meritoo\Common\Exception\Base\UnknownTypeException;
+use Meritoo\Common\Type\DatePartType;
+
+/**
+ * An exception used while type of date part, e.g. "year", is unknown
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class UnknownDatePartTypeException extends UnknownTypeException
+{
+    /**
+     * Class constructor
+     *
+     * @param string $unknownDatePart Type of date part, e.g. "year". One of DatePartType class constants.
+     * @param string $value           Incorrect value
+     */
+    public function __construct($unknownDatePart, $value)
+    {
+        parent::__construct($unknownDatePart, new DatePartType(), sprintf('date part (with value %s)', $value));
+    }
+}
--- a/src/Meritoo/Common/Exception/Regex/IncorrectColorHexLengthException.php
+++ b/src/Meritoo/Common/Exception/Regex/IncorrectColorHexLengthException.php
@@ -6,7 +6,7 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Exception;
+namespace Meritoo\Common\Exception\Regex;

 /**
 * An exception used while length of given hexadecimal value of color is incorrect
--- a/src/Meritoo/Common/Exception/Regex/InvalidColorHexValueException.php
+++ b/src/Meritoo/Common/Exception/Regex/InvalidColorHexValueException.php
@@ -6,10 +6,10 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Exception;
+namespace Meritoo\Common\Exception\Regex;

 /**
- * An exception used while given hexadecimal value of color is incorrect
+ * An exception used while given hexadecimal value of color is invalid
 *
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
@@ -19,11 +19,11 @@ class InvalidColorHexValueException extends \Exception
    /**
     * Class constructor
     *
-     * @param string $color Incorrect hexadecimal value of color
+     * @param string $color Invalid hexadecimal value of color
     */
    public function __construct($color)
    {
-        $message = sprintf('Hexadecimal value of color \'%s\' is incorrect. Is there everything ok?', $color);
+        $message = sprintf('Hexadecimal value of color \'%s\' is invalid. Is there everything ok?', $color);
        parent::__construct($message);
    }
 }
--- a/src/Meritoo/Common/Exception/Regex/InvalidUrlException.php
+++ b/src/Meritoo/Common/Exception/Regex/InvalidUrlException.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Meritoo\Common\Exception\Regex;
+
+/**
+ * An exception used while url is invalid
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class InvalidUrlException extends \Exception
+{
+    /**
+     * Class constructor
+     *
+     * @param string $url Invalid url
+     */
+    public function __construct($url)
+    {
+        $message = sprintf('Url \'%s\' is invalid. Is there everything ok?', $url);
+        parent::__construct($message);
+    }
+}
--- a/src/Meritoo/Common/Exception/Type/UnknownOopVisibilityTypeException.php
+++ b/src/Meritoo/Common/Exception/Type/UnknownOopVisibilityTypeException.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Meritoo\Common\Exception\Type;
+
+use Meritoo\Common\Exception\Base\UnknownTypeException;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * 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 UnknownOopVisibilityTypeException extends UnknownTypeException
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct($unknownType)
+    {
+        parent::__construct($unknownType, new OopVisibilityType(), 'OOP-related visibility');
+    }
+}
--- a/src/Meritoo/Common/Test/Base/BaseTestCase.php
+++ b/src/Meritoo/Common/Test/Base/BaseTestCase.php
@@ -0,0 +1,199 @@
+<?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 DateTime;
+use Generator;
+use Meritoo\Common\Exception\Type\UnknownOopVisibilityTypeException;
+use Meritoo\Common\Type\OopVisibilityType;
+use PHPUnit_Framework_TestCase;
+use ReflectionClass;
+use ReflectionMethod;
+
+/**
+ * Base test case with common methods and data providers
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+abstract class BaseTestCase extends PHPUnit_Framework_TestCase
+{
+    /**
+     * Provides an empty value
+     *
+     * @return Generator
+     */
+    public function provideEmptyValue()
+    {
+        yield[''];
+        yield['   '];
+        yield[null];
+        yield[0];
+        yield[false];
+        yield[[]];
+    }
+
+    /**
+     * Provides boolean value
+     *
+     * @return Generator
+     */
+    public function provideBooleanValue()
+    {
+        yield[false];
+        yield[true];
+    }
+
+    /**
+     * Provides instance of DateTime class
+     *
+     * @return Generator
+     */
+    public function provideDateTimeInstance()
+    {
+        yield[new DateTime()];
+        yield[new DateTime('yesterday')];
+        yield[new DateTime('now')];
+        yield[new DateTime('tomorrow')];
+    }
+
+    /**
+     * Provides relative / compound format of DateTime
+     *
+     * @return Generator
+     */
+    public function provideDateTimeRelativeFormat()
+    {
+        yield['now'];
+        yield['yesterday'];
+        yield['tomorrow'];
+        yield['back of 10'];
+        yield['front of 10'];
+        yield['last day of February'];
+        yield['first day of next month'];
+        yield['last day of previous month'];
+        yield['last day of next month'];
+        yield['Y-m-d'];
+        yield['Y-m-d 10:00'];
+    }
+
+    /**
+     * Provides path of not existing file, e.g. "lorem/ipsum.jpg"
+     *
+     * @return Generator
+     */
+    public function provideNotExistingFilePath()
+    {
+        yield['lets-test.doc'];
+        yield['lorem/ipsum.jpg'];
+        yield['surprise/me/one/more/time.txt'];
+    }
+
+    /**
+     * Returns path of file used by tests.
+     * 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, $directoryPath = '')
+    {
+        if (!empty($directoryPath)) {
+            $directoryPath = '/' . $directoryPath;
+        }
+
+        return sprintf('%s/../../../../../data/tests/%s%s', __DIR__, $fileName, $directoryPath);
+    }
+
+    /**
+     * Verifies visibility and arguments of method
+     *
+     * @param string                  $classNamespace         Namespace of class that contains method to verify
+     * @param string|ReflectionMethod $method                 Name of method or just the method 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
+     * @param int                     $requiredArgumentsCount (optional) Expected count/amount of required arguments
+     *                                                        of the verified method
+     * @throws UnknownOopVisibilityTypeException
+     *
+     * Attention. 2nd argument, the $method, may be:
+     * - string - name of the method
+     * - instance of ReflectionMethod - just the method (provided by ReflectionClass::getMethod() method)
+     */
+    protected function verifyMethodVisibilityAndArguments(
+        $classNamespace,
+        $method,
+        $visibilityType,
+        $argumentsCount = 0,
+        $requiredArgumentsCount = 0
+    ) {
+        /*
+         * Type of visibility is correct?
+         */
+        if (!(new OopVisibilityType())->isCorrectType($visibilityType)) {
+            throw new UnknownOopVisibilityTypeException($visibilityType);
+        }
+
+        $reflection = new ReflectionClass($classNamespace);
+
+        /*
+         * Name of method provided only?
+         * Let's find instance of the method (based on reflection)
+         */
+        if (!$method instanceof ReflectionMethod) {
+            $method = $reflection->getMethod($method);
+        }
+
+        switch ($visibilityType) {
+            case OopVisibilityType::IS_PUBLIC:
+                static::assertTrue($method->isPublic());
+                break;
+
+            case OopVisibilityType::IS_PROTECTED:
+                static::assertTrue($method->isProtected());
+                break;
+
+            case OopVisibilityType::IS_PRIVATE:
+                static::assertTrue($method->isPrivate());
+                break;
+        }
+
+        static::assertEquals($argumentsCount, $method->getNumberOfParameters());
+        static::assertEquals($requiredArgumentsCount, $method->getNumberOfRequiredParameters());
+    }
+
+    /**
+     * Verifies visibility and arguments of class constructor
+     *
+     * @param string $classNamespace         Namespace of class that contains method 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
+     * @param int    $requiredArgumentsCount (optional) Expected count/amount of required arguments of the verified
+     *                                       method
+     * @throws UnknownOopVisibilityTypeException
+     */
+    protected function verifyConstructorVisibilityAndArguments(
+        $classNamespace,
+        $visibilityType,
+        $argumentsCount = 0,
+        $requiredArgumentsCount = 0
+    ) {
+        /*
+         * Let's grab the constructor
+         */
+        $reflection = new ReflectionClass($classNamespace);
+        $method = $reflection->getConstructor();
+
+        return $this->verifyMethodVisibilityAndArguments($classNamespace, $method, $visibilityType, $argumentsCount, $requiredArgumentsCount);
+    }
+}
--- a/src/Meritoo/Common/Test/Base/BaseTypeTestCase.php
+++ b/src/Meritoo/Common/Test/Base/BaseTypeTestCase.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Meritoo\Common\Test\Base;
+
+use Generator;
+use Meritoo\Common\Type\Base\BaseType;
+
+/**
+ * Base test case for the type of something
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+abstract class BaseTypeTestCase extends BaseTestCase
+{
+    /**
+     * Verifies availability of all types
+     */
+    public function testAvailabilityOfAllTypes()
+    {
+        $available = $this->getTestedTypeInstance()->getAll();
+        $all = $this->getAllExpectedTypes();
+
+        static::assertEquals($all, $available);
+    }
+
+    /**
+     * Verifies whether given type is correct or not
+     *
+     * @param string $type     Type to verify
+     * @param bool   $expected Information if given type is correct or not
+     *
+     * @dataProvider provideTypeToVerify
+     */
+    public function testIfGivenTypeIsCorrect($type, $expected)
+    {
+        static::assertEquals($expected, $this->getTestedTypeInstance()->isCorrectType($type));
+    }
+
+    /**
+     * Provides type to verify and information if it's correct
+     *
+     * @return Generator
+     */
+    abstract public function provideTypeToVerify();
+
+    /**
+     * Returns instance of the tested type
+     *
+     * @return BaseType
+     */
+    abstract protected function getTestedTypeInstance();
+
+    /**
+     * Returns all expected types of the tested type
+     *
+     * @return array
+     */
+    abstract protected function getAllExpectedTypes();
+}
--- a/src/Meritoo/Common/Type/DatePartType.php
+++ b/src/Meritoo/Common/Type/DatePartType.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\Type;

 use Meritoo\Common\Type\Base\BaseType;
--- a/src/Meritoo/Common/Type/OopVisibilityType.php
+++ b/src/Meritoo/Common/Type/OopVisibilityType.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Meritoo\Common\Type;
+
+use Meritoo\Common\Type\Base\BaseType;
+
+/**
+ * The visibility of a property, a method or (as of PHP 7.1.0) a constant
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ *
+ * @see       http://php.net/manual/en/language.oop5.visibility.php
+ */
+class OopVisibilityType extends BaseType
+{
+    /**
+     * The "private" visibility of OOP
+     *
+     * @var int
+     */
+    const IS_PRIVATE = 3;
+
+    /**
+     * The "protected" visibility of OOP
+     *
+     * @var int
+     */
+    const IS_PROTECTED = 2;
+
+    /**
+     * The "public" visibility of OOP
+     *
+     * @var int
+     */
+    const IS_PUBLIC = 1;
+}
--- a/src/Meritoo/Common/Utilities/Date.php
+++ b/src/Meritoo/Common/Utilities/Date.php
@@ -10,7 +10,7 @@ namespace Meritoo\Common\Utilities;

 use DateInterval;
 use DateTime;
-use Meritoo\Common\Exception\Date\IncorrectDatePartException;
+use Meritoo\Common\Exception\Date\UnknownDatePartTypeException;
 use Meritoo\Common\Type\DatePartType;

 /**
@@ -231,7 +231,7 @@ class Date
     * @param int $day   The day value
     *
     * @return int
-     * @throws IncorrectDatePartException
+     * @throws UnknownDatePartTypeException
     */
    public static function getDayOfWeek($year, $month, $day)
    {
@@ -243,21 +243,21 @@ class Date
         * Oops, incorrect year
         */
        if ($year <= 0) {
-            throw new IncorrectDatePartException($year, DatePartType::YEAR);
+            throw new UnknownDatePartTypeException(DatePartType::YEAR, $year);
        }

        /*
         * Oops, incorrect month
         */
        if ($month < 1 || $month > 12) {
-            throw new IncorrectDatePartException($month, DatePartType::MONTH);
+            throw new UnknownDatePartTypeException(DatePartType::MONTH, $month);
        }

        /*
         * Oops, incorrect day
         */
        if ($day < 1 || $day > 31) {
-            throw new IncorrectDatePartException($day, DatePartType::DAY);
+            throw new UnknownDatePartTypeException(DatePartType::DAY, $day);
        }

        if ($month < 3) {
--- a/src/Meritoo/Common/Utilities/Regex.php
+++ b/src/Meritoo/Common/Utilities/Regex.php
@@ -8,8 +8,8 @@

 namespace Meritoo\Common\Utilities;

-use Meritoo\Common\Exception\IncorrectColorHexLengthException;
-use Meritoo\Common\Exception\InvalidColorHexValueException;
+use Meritoo\Common\Exception\Regex\IncorrectColorHexLengthException;
+use Meritoo\Common\Exception\Regex\InvalidColorHexValueException;

 /**
 * Useful regular expressions methods
--- a/src/Meritoo/Common/Utilities/TestCase.php
+++ b/src/Meritoo/Common/Utilities/TestCase.php
@@ -1,103 +0,0 @@
-<?php
-
-namespace Meritoo\Common\Utilities;
-
-use DateTime;
-use Generator;
-
-/**
- * Test case with common methods and data providers
- *
- * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
- * @copyright Meritoo.pl
- */
-class TestCase extends \PHPUnit_Framework_TestCase
-{
-    /**
-     * Provides an empty value
-     *
-     * @return Generator
-     */
-    public function provideEmptyValue()
-    {
-        yield[''];
-        yield['   '];
-        yield[null];
-        yield[0];
-        yield[false];
-        yield[[]];
-    }
-
-    /**
-     * Provides boolean value
-     *
-     * @return Generator
-     */
-    public function provideBooleanValue()
-    {
-        yield[false];
-        yield[true];
-    }
-
-    /**
-     * Provides instance of DateTime class
-     *
-     * @return Generator
-     */
-    public function provideDateTimeInstance()
-    {
-        yield[new DateTime()];
-        yield[new DateTime('yesterday')];
-        yield[new DateTime('now')];
-        yield[new DateTime('tomorrow')];
-    }
-
-    /**
-     * Provides relative / compound format of DateTime
-     *
-     * @return Generator
-     */
-    public function provideDateTimeRelativeFormat()
-    {
-        yield['now'];
-        yield['yesterday'];
-        yield['tomorrow'];
-        yield['back of 10'];
-        yield['front of 10'];
-        yield['last day of February'];
-        yield['first day of next month'];
-        yield['last day of previous month'];
-        yield['last day of next month'];
-        yield['Y-m-d'];
-        yield['Y-m-d 10:00'];
-    }
-
-    /**
-     * Provides path of not existing file, e.g. "lorem/ipsum.jpg"
-     *
-     * @return Generator
-     */
-    public function provideNotExistingFilePath()
-    {
-        yield['lets-test.doc'];
-        yield['lorem/ipsum.jpg'];
-        yield['suprise/me/one/more/time.txt'];
-    }
-
-    /**
-     * Returns path of file used by tests.
-     * 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, $directoryPath = '')
-    {
-        if (!empty($directoryPath)) {
-            $directoryPath = '/' . $directoryPath;
-        }
-
-        return sprintf('%s/../../../../data/tests/%s%s', __DIR__, $fileName, $directoryPath);
-    }
-}
--- a/tests/Meritoo/Common/Test/Collection/CollectionTest.php
+++ b/tests/Meritoo/Common/Test/Collection/CollectionTest.php
@@ -0,0 +1,329 @@
+<?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\Collection;
+
+use ArrayIterator;
+use Meritoo\Common\Collection\Collection;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
+
+/**
+ * Tests of the collection of elements
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class CollectionTest extends BaseTestCase
+{
+    /**
+     * An empty collection
+     *
+     * @var Collection
+     */
+    private $emptyCollection;
+
+    /**
+     * Simple collection
+     *
+     * @var Collection
+     */
+    private $simpleCollection;
+
+    /**
+     * Elements of simple collection
+     *
+     * @var array
+     */
+    private $simpleElements;
+
+    public function testEmptyCollection()
+    {
+        static::assertEquals(0, $this->emptyCollection->count());
+        static::assertCount(0, $this->emptyCollection);
+        static::assertEmpty($this->emptyCollection);
+
+        static::assertTrue($this->emptyCollection->isEmpty());
+        static::assertEquals([], $this->emptyCollection->toArray());
+        static::assertEmpty($this->emptyCollection->toArray());
+
+        static::assertNull($this->emptyCollection->getFirst());
+        static::assertNull($this->emptyCollection->getLast());
+        static::assertNull($this->emptyCollection[1]);
+        static::assertNull($this->emptyCollection['abc']);
+    }
+
+    public function testNotEmptyCollection()
+    {
+        static::assertEquals(4, $this->simpleCollection->count());
+        static::assertCount(4, $this->simpleCollection);
+        static::assertNotEmpty($this->simpleCollection);
+
+        static::assertFalse($this->simpleCollection->isEmpty());
+        static::assertEquals($this->simpleElements, $this->simpleCollection->toArray());
+        static::assertNotEmpty($this->simpleCollection->toArray());
+
+        static::assertEquals('lorem', $this->simpleCollection->getFirst());
+        static::assertEquals('sit', $this->simpleCollection->getLast());
+        static::assertEquals('dolor', $this->simpleCollection[123]);
+    }
+
+    public function testCount()
+    {
+        static::assertEquals(0, $this->emptyCollection->count());
+        static::assertEquals(4, $this->simpleCollection->count());
+    }
+
+    public function testOffsetExists()
+    {
+        static::assertFalse(isset($this->emptyCollection['abc']));
+        static::assertFalse(isset($this->simpleCollection['abc']));
+
+        static::assertTrue(isset($this->simpleCollection[0]));
+        static::assertTrue(isset($this->simpleCollection[345]));
+    }
+
+    public function testOffsetGet()
+    {
+        static::assertNull($this->emptyCollection['abc']);
+        static::assertNull($this->simpleCollection['abc']);
+
+        static::assertEquals('lorem', $this->simpleCollection[0]);
+        static::assertEquals('sit', $this->simpleCollection[345]);
+    }
+
+    public function testOffsetSet()
+    {
+        $this->emptyCollection['test1'] = 1234;
+        $this->simpleCollection['test2'] = 5678;
+
+        static::assertTrue($this->emptyCollection->has(1234));
+        static::assertEquals(1234, $this->emptyCollection['test1']);
+
+        static::assertTrue($this->simpleCollection->has(5678));
+        static::assertEquals(5678, $this->simpleCollection['test2']);
+    }
+
+    public function testOffsetUnset()
+    {
+        unset($this->simpleCollection[0]);
+
+        static::assertFalse($this->simpleCollection->has('lorem'));
+        static::assertEquals('ipsum', $this->simpleCollection[1]);
+        static::assertEquals(3, $this->simpleCollection->count());
+
+        unset($this->simpleCollection[123]);
+
+        static::assertFalse($this->simpleCollection->has('dolor'));
+        static::assertEquals('ipsum', $this->simpleCollection[1]);
+        static::assertEquals(2, $this->simpleCollection->count());
+    }
+
+    public function testGetIterator()
+    {
+        static::assertInstanceOf(ArrayIterator::class, $this->simpleCollection->getIterator());
+    }
+
+    public function testAdd()
+    {
+        $this->emptyCollection->add('test1');
+
+        static::assertTrue($this->emptyCollection->has('test1'));
+        static::assertEquals(1, $this->emptyCollection->count());
+        static::assertEquals('test1', $this->emptyCollection[0]);
+    }
+
+    public function testAddWithIndex()
+    {
+        $this->emptyCollection->add('test2', 1234);
+
+        static::assertTrue($this->emptyCollection->has('test2'));
+        static::assertEquals(1, $this->emptyCollection->count());
+        static::assertEquals('test2', $this->emptyCollection[1234]);
+    }
+
+    public function testAddMultipleUsingEmptyArray()
+    {
+        $this->emptyCollection->addMultiple([]);
+
+        static::assertEquals(0, $this->emptyCollection->count());
+        static::assertTrue($this->emptyCollection->isEmpty());
+    }
+
+    public function testAddMultiple()
+    {
+        $elements = [
+            'test1',
+            'test2',
+            1234 => 'test3',
+            5678 => 'test4',
+        ];
+
+        $this->emptyCollection->addMultiple($elements);
+
+        static::assertFalse($this->emptyCollection->isEmpty());
+        static::assertEquals(4, $this->emptyCollection->count());
+
+        static::assertEquals('test1', $this->emptyCollection[0]);
+        static::assertEquals('test2', $this->emptyCollection[1]);
+        static::assertEquals('test3', $this->emptyCollection[2]);
+        static::assertEquals('test4', $this->emptyCollection[3]);
+    }
+
+    public function testAddMultipleUsingIndexes()
+    {
+        $elements = [
+            'test1',
+            'test2',
+            1234 => 'test3',
+            5678 => 'test4',
+        ];
+
+        $this->emptyCollection->addMultiple($elements, true);
+
+        static::assertFalse($this->emptyCollection->isEmpty());
+        static::assertEquals(4, $this->emptyCollection->count());
+
+        static::assertEquals('test1', $this->emptyCollection[0]);
+        static::assertEquals('test2', $this->emptyCollection[1]);
+        static::assertEquals('test3', $this->emptyCollection[1234]);
+        static::assertEquals('test4', $this->emptyCollection[5678]);
+    }
+
+    public function testPrepend()
+    {
+        $this->emptyCollection->prepend('lorem-ipsum');
+
+        static::assertFalse($this->emptyCollection->isEmpty());
+        static::assertEquals(1, $this->emptyCollection->count());
+        static::assertEquals('lorem-ipsum', $this->emptyCollection[0]);
+
+        $this->simpleCollection->prepend('lorem-ipsum');
+
+        static::assertFalse($this->simpleCollection->isEmpty());
+        static::assertEquals(5, $this->simpleCollection->count());
+        static::assertEquals('lorem-ipsum', $this->simpleCollection[0]);
+    }
+
+    public function testRemoveNotExistingElement()
+    {
+        $this->emptyCollection->remove('abc');
+
+        static::assertTrue($this->emptyCollection->isEmpty());
+        static::assertEquals(0, $this->emptyCollection->count());
+
+        $this->simpleCollection->remove('abc');
+
+        static::assertFalse($this->simpleCollection->isEmpty());
+        static::assertEquals(4, $this->simpleCollection->count());
+    }
+
+    public function testRemove()
+    {
+        static::assertFalse($this->simpleCollection->isEmpty());
+        static::assertEquals(4, $this->simpleCollection->count());
+        static::assertEquals('ipsum', $this->simpleCollection[1]);
+
+        $this->simpleCollection->remove('ipsum');
+
+        static::assertFalse($this->simpleCollection->isEmpty());
+        static::assertEquals(3, $this->simpleCollection->count());
+        static::assertNull($this->simpleCollection[1]);
+    }
+
+    public function testIsEmpty()
+    {
+        static::assertTrue($this->emptyCollection->isEmpty());
+        static::assertFalse($this->simpleCollection->isEmpty());
+    }
+
+    public function testIsFirst()
+    {
+        static::assertFalse($this->emptyCollection->isFirst('abc'));
+        static::assertFalse($this->simpleCollection->isFirst('abc'));
+        static::assertFalse($this->simpleCollection->isFirst('dolor'));
+        static::assertTrue($this->simpleCollection->isFirst('lorem'));
+    }
+
+    public function testIsLast()
+    {
+        static::assertFalse($this->emptyCollection->isLast('abc'));
+        static::assertFalse($this->simpleCollection->isLast('abc'));
+        static::assertFalse($this->simpleCollection->isLast('dolor'));
+        static::assertTrue($this->simpleCollection->isLast('sit'));
+    }
+
+    public function testHas()
+    {
+        static::assertFalse($this->emptyCollection->has('abc'));
+        static::assertFalse($this->simpleCollection->has('abc'));
+        static::assertTrue($this->simpleCollection->has('lorem'));
+        static::assertTrue($this->simpleCollection->has('dolor'));
+    }
+
+    public function testGetPrevious()
+    {
+        static::assertNull($this->emptyCollection->getPrevious('abc'));
+        static::assertNull($this->simpleCollection->getPrevious('abc'));
+        static::assertNull($this->simpleCollection->getPrevious('lorem'));
+
+        static::assertEquals('lorem', $this->simpleCollection->getPrevious('ipsum'));
+        static::assertEquals('dolor', $this->simpleCollection->getPrevious('sit'));
+    }
+
+    public function testGetNext()
+    {
+        static::assertNull($this->emptyCollection->getNext('abc'));
+        static::assertNull($this->simpleCollection->getNext('abc'));
+        static::assertNull($this->simpleCollection->getNext('sit'));
+
+        static::assertEquals('dolor', $this->simpleCollection->getNext('ipsum'));
+        static::assertEquals('sit', $this->simpleCollection->getNext('dolor'));
+    }
+
+    public function testGetFirst()
+    {
+        static::assertNull($this->emptyCollection->getFirst());
+        static::assertEquals('lorem', $this->simpleCollection->getFirst());
+    }
+
+    public function testGetLast()
+    {
+        static::assertNull($this->emptyCollection->getLast());
+        static::assertEquals('sit', $this->simpleCollection->getLast());
+    }
+
+    public function testToArray()
+    {
+        static::assertEquals([], $this->emptyCollection->toArray());
+        static::assertEquals($this->simpleElements, $this->simpleCollection->toArray());
+    }
+
+    public function testExistsVisibilityAndArguments()
+    {
+        $this->verifyMethodVisibilityAndArguments(Collection::class, 'exists', OopVisibilityType::IS_PRIVATE, 1, 1);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function setUp()
+    {
+        parent::setUp();
+
+        $this->simpleElements = [
+            'lorem',
+            'ipsum',
+            123 => 'dolor',
+            345 => 'sit',
+        ];
+
+        $this->emptyCollection = new Collection();
+        $this->simpleCollection = new Collection($this->simpleElements);
+    }
+}
--- a/tests/Meritoo/Common/Tests/Exception/Base/UnknownTypeExceptionTest.php
+++ b/tests/Meritoo/Common/Tests/Exception/Base/UnknownTypeExceptionTest.php
@@ -6,10 +6,11 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Exception\Base;
+namespace Meritoo\Common\Test\Exception\Base;

 use Meritoo\Common\Exception\Base\UnknownTypeException;
 use Meritoo\Common\Type\Base\BaseType;
+use PHPUnit_Framework_TestCase;

 /**
 * Tests of the exception used while type of something is unknown
@@ -17,7 +18,7 @@ use Meritoo\Common\Type\Base\BaseType;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class UnknownTypeExceptionTest extends \PHPUnit_Framework_TestCase
+class UnknownTypeExceptionTest extends PHPUnit_Framework_TestCase
 {
    public function testWithoutException()
    {
--- a/tests/Meritoo/Common/Tests/Type/Base/BaseTypeTest.php
+++ b/tests/Meritoo/Common/Tests/Type/Base/BaseTypeTest.php
@@ -6,10 +6,11 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Type\Base;
+namespace Meritoo\Common\Test\Type\Base;

 use Generator;
 use Meritoo\Common\Type\Base\BaseType;
+use PHPUnit_Framework_TestCase;

 /**
 * Tests of the base / abstract type of something
@@ -17,7 +18,7 @@ use Meritoo\Common\Type\Base\BaseType;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class BaseTypeTest extends \PHPUnit_Framework_TestCase
+class BaseTypeTest extends PHPUnit_Framework_TestCase
 {
    /**
     * @param BaseType $type          Type of something
--- a/tests/Meritoo/Common/Tests/Type/DatePartTypeTest.php
+++ b/tests/Meritoo/Common/Tests/Type/DatePartTypeTest.php
@@ -6,9 +6,9 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Type;
+namespace Meritoo\Common\Test\Type;

-use Generator;
+use Meritoo\Common\Test\Base\BaseTypeTestCase;
 use Meritoo\Common\Type\DatePartType;

 /**
@@ -17,11 +17,14 @@ use Meritoo\Common\Type\DatePartType;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class DatePartTypeTest extends \PHPUnit_Framework_TestCase
+class DatePartTypeTest extends BaseTypeTestCase
 {
-    public function testGetAll()
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAllExpectedTypes()
    {
-        $expectedTypes = [
+        return [
            'DAY'    => DatePartType::DAY,
            'HOUR'   => DatePartType::HOUR,
            'MINUTE' => DatePartType::MINUTE,
@@ -29,29 +32,20 @@ class DatePartTypeTest extends \PHPUnit_Framework_TestCase
            'SECOND' => DatePartType::SECOND,
            'YEAR'   => DatePartType::YEAR,
        ];
-
-        $all = (new DatePartType())->getAll();
-        self::assertEquals($expectedTypes, $all);
    }

    /**
-     * @param string $toVerifyType Concrete type to verify (of given instance of type)
-     * @param bool   $isCorrect    Expected information if given type is correct
-     *
-     * @dataProvider provideConcreteType
+     * {@inheritdoc}
     */
-    public function testIsCorrectType($toVerifyType, $isCorrect)
+    protected function getTestedTypeInstance()
    {
-        $type = new DatePartType();
-        self::assertEquals($isCorrect, $type->isCorrectType($toVerifyType));
+        return new DatePartType();
    }

    /**
-     * Provides type of something for testing the isCorrectType() method
-     *
-     * @return Generator
+     * {@inheritdoc}
     */
-    public function provideConcreteType()
+    public function provideTypeToVerify()
    {
        yield[
            '',
--- a/tests/Meritoo/Common/Tests/Utilities/ArraysTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/ArraysTest.php
@@ -6,9 +6,10 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Meritoo\Common\Utilities\Arrays;
+use PHPUnit_Framework_TestCase;

 /**
 * Tests of the useful arrays methods
@@ -16,7 +17,7 @@ use Meritoo\Common\Utilities\Arrays;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class ArraysTest extends \PHPUnit_Framework_TestCase
+class ArraysTest extends PHPUnit_Framework_TestCase
 {
    private $simpleArray;
    private $simpleArrayWithKeys;
--- a/tests/Meritoo/Common/Tests/Utilities/BundleTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/BundleTest.php
@@ -6,9 +6,10 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Meritoo\Common\Utilities\Bundle;
+use PHPUnit_Framework_TestCase;

 /**
 * Tests of the useful methods for bundle
@@ -16,7 +17,7 @@ use Meritoo\Common\Utilities\Bundle;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class BundleTest extends \PHPUnit_Framework_TestCase
+class BundleTest extends PHPUnit_Framework_TestCase
 {
    public function testGetBundleViewPathEmptyPathAndBundle()
    {
--- a/tests/Meritoo/Common/Tests/Utilities/ComposerTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/ComposerTest.php
@@ -6,10 +6,11 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

+use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Composer;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the useful Composer-related methods
@@ -17,7 +18,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class ComposerTest extends TestCase
+class ComposerTest extends BaseTestCase
 {
    /**
     * Path of existing composer.json used as source of data for tests
@@ -60,7 +61,7 @@ class ComposerTest extends TestCase
    /**
     * Provides names and values of existing nodes
     *
-     * @return \Generator
+     * @return Generator
     */
    public function getExistingNode()
    {
--- a/tests/Meritoo/Common/Tests/Utilities/DatePeriodTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/DatePeriodTest.php
@@ -1,11 +1,18 @@
 <?php

-namespace Meritoo\Common\Tests\Utilities;
+/**
+ * (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;

 use DateTime;
 use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Type\OopVisibilityType;
 use Meritoo\Common\Utilities\DatePeriod;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of date's period
@@ -13,8 +20,13 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class DatePeriodTest extends TestCase
+class DatePeriodTest extends BaseTestCase
 {
+    public function testConstructorVisibilityAndArguments()
+    {
+        $this->verifyConstructorVisibilityAndArguments(DatePeriod::class, OopVisibilityType::IS_PUBLIC, 2, 0);
+    }
+
    /**
     * @param DateTime $startDate (optional) Start date of period
     * @param DateTime $endDate   (optional) End date of period
--- a/tests/Meritoo/Common/Tests/Utilities/DateTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/DateTest.php
@@ -6,14 +6,14 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use DateInterval;
 use DateTime;
 use Generator;
-use Meritoo\Common\Exception\Date\IncorrectDatePartException;
+use Meritoo\Common\Exception\Date\UnknownDatePartTypeException;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Date;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the Date methods (only static functions)
@@ -21,7 +21,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class DateTest extends TestCase
+class DateTest extends BaseTestCase
 {
    /**
     * @param mixed $value Empty value, e.g. ""
@@ -218,7 +218,7 @@ class DateTest extends TestCase
     */
    public function testGetDayOfWeekIncorrectValues($year, $month, $day)
    {
-        $this->expectException(IncorrectDatePartException::class);
+        $this->expectException(UnknownDatePartTypeException::class);
        self::assertEmpty(Date::getDayOfWeek($year, $month, $day));
    }

--- a/tests/Meritoo/Common/Tests/Utilities/GeneratorUtilityTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/GeneratorUtilityTest.php
@@ -6,10 +6,10 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\GeneratorUtility;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the useful methods for the Generator class
@@ -17,7 +17,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class GeneratorUtilityTest extends TestCase
+class GeneratorUtilityTest extends BaseTestCase
 {
    public function testGetGeneratorElements()
    {
--- a/tests/Meritoo/Common/Tests/Utilities/LocaleTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/LocaleTest.php
@@ -6,11 +6,11 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Locale;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the useful locale methods
@@ -18,7 +18,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class LocaleTest extends TestCase
+class LocaleTest extends BaseTestCase
 {
    /**
     * @param mixed $languageCode Empty value, e.g. ""
--- a/tests/Meritoo/Common/Tests/Utilities/MimeTypesTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/MimeTypesTest.php
@@ -6,11 +6,11 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Generator;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\MimeTypes;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the useful methods for mime types of files
@@ -18,7 +18,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class MimeTypesTest extends TestCase
+class MimeTypesTest extends BaseTestCase
 {
    /**
     * @param mixed $mimeType Empty value, e.g. ""
--- a/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
@@ -6,14 +6,14 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Generator;
-use Meritoo\Common\Exception\IncorrectColorHexLengthException;
-use Meritoo\Common\Exception\InvalidColorHexValueException;
+use Meritoo\Common\Exception\Regex\IncorrectColorHexLengthException;
+use Meritoo\Common\Exception\Regex\InvalidColorHexValueException;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Locale;
 use Meritoo\Common\Utilities\Miscellaneous;
-use Meritoo\Common\Utilities\TestCase;
 use stdClass;

 /**
@@ -22,7 +22,7 @@ use stdClass;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class MiscellaneousTest extends TestCase
+class MiscellaneousTest extends BaseTestCase
 {
    private $stringSmall;
    private $stringCommaSeparated;
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/A.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/A.php
@@ -1,6 +1,12 @@
 <?php

-namespace Meritoo\Common\Tests\Utilities\Reflection;
+/**
+ * (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 A class.
--- a/tests/Meritoo/Common/Test/Utilities/Reflection/B.php
+++ b/tests/Meritoo/Common/Test/Utilities/Reflection/B.php
@@ -0,0 +1,20 @@
+<?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 B class.
+ * Used for testing the Reflection class.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class B extends A
+{
+}
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/C.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/C.php
@@ -1,6 +1,12 @@
 <?php

-namespace Meritoo\Common\Tests\Utilities\Reflection;
+/**
+ * (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 C class.
--- a/tests/Meritoo/Common/Test/Utilities/Reflection/D.php
+++ b/tests/Meritoo/Common/Test/Utilities/Reflection/D.php
@@ -0,0 +1,20 @@
+<?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 D class.
+ * Used for testing the Reflection class.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class D
+{
+}
--- a/tests/Meritoo/Common/Test/Utilities/Reflection/E.php
+++ b/tests/Meritoo/Common/Test/Utilities/Reflection/E.php
@@ -0,0 +1,20 @@
+<?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 E trait.
+ * Used for testing the Reflection class.
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+trait E
+{
+}
--- a/tests/Meritoo/Common/Tests/Utilities/ReflectionTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/ReflectionTest.php
@@ -6,20 +6,20 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use DateTime;
 use Generator;
 use Meritoo\Common\Exception\Reflection\CannotResolveClassNameException;
 use Meritoo\Common\Exception\Reflection\MissingChildClassesException;
 use Meritoo\Common\Exception\Reflection\TooManyChildClassesException;
-use Meritoo\Common\Tests\Utilities\Reflection\A;
-use Meritoo\Common\Tests\Utilities\Reflection\B;
-use Meritoo\Common\Tests\Utilities\Reflection\C;
-use Meritoo\Common\Tests\Utilities\Reflection\D;
-use Meritoo\Common\Tests\Utilities\Reflection\E;
+use Meritoo\Common\Test\Base\BaseTestCase;
+use Meritoo\Common\Test\Utilities\Reflection\A;
+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\Utilities\Reflection;
-use Meritoo\Common\Utilities\TestCase;

 /**
 * Tests of the useful reflection methods
@@ -27,7 +27,7 @@ use Meritoo\Common\Utilities\TestCase;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class ReflectionTest extends TestCase
+class ReflectionTest extends BaseTestCase
 {
    /**
     * @param mixed $invalidClass Empty value, e.g. ""
@@ -88,7 +88,7 @@ class ReflectionTest extends TestCase
        /*
         * Existing class
         */
-        self::assertEquals('Meritoo\Common\Tests\Utilities', Reflection::getClassNamespace(self::class));
+        self::assertEquals('Meritoo\Common\Test\Utilities', Reflection::getClassNamespace(self::class));
        self::assertEquals(DateTime::class, Reflection::getClassNamespace(new DateTime()));

        self::assertEquals(DateTime::class, Reflection::getClassNamespace([
--- a/tests/Meritoo/Common/Tests/Utilities/RegexTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/RegexTest.php
--- a/tests/Meritoo/Common/Tests/Utilities/UriTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/UriTest.php
@@ -1,13 +1,14 @@
 <?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\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

-use Meritoo\Common\Utilities\TestCase;
+use Meritoo\Common\Test\Base\BaseTestCase;
 use Meritoo\Common\Utilities\Uri;

 /**
@@ -16,7 +17,7 @@ use Meritoo\Common\Utilities\Uri;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class UriTest extends TestCase
+class UriTest extends BaseTestCase
 {
    public function testAddProtocolToUrl()
    {
--- a/tests/Meritoo/Common/Tests/Utilities/XmlTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/XmlTest.php
@@ -6,9 +6,10 @@
 * file that was distributed with this source code.
 */

-namespace Meritoo\Common\Tests\Utilities;
+namespace Meritoo\Common\Test\Utilities;

 use Meritoo\Common\Utilities\Xml;
+use PHPUnit_Framework_TestCase;
 use SimpleXMLElement;

 /**
@@ -17,7 +18,7 @@ use SimpleXMLElement;
 * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
 * @copyright Meritoo.pl
 */
-class XmlTest extends \PHPUnit_Framework_TestCase
+class XmlTest extends PHPUnit_Framework_TestCase
 {
    private $simpleXml;
    private $advancedXml;
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/B.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/B.php
@@ -1,14 +0,0 @@
-<?php
-
-namespace Meritoo\Common\Tests\Utilities\Reflection;
-
-/**
- * The B class.
- * Used for testing the Reflection class.
- *
- * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
- * @copyright Meritoo.pl
- */
-class B extends A
-{
-}
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/D.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/D.php
@@ -1,14 +0,0 @@
-<?php
-
-namespace Meritoo\Common\Tests\Utilities\Reflection;
-
-/**
- * The D class.
- * Used for testing the Reflection class.
- *
- * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
- * @copyright Meritoo.pl
- */
-class D
-{
-}
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/E.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/E.php
@@ -1,14 +0,0 @@
-<?php
-
-namespace Meritoo\Common\Tests\Utilities\Reflection;
-
-/**
- * The E trait.
- * Used for testing the Reflection class.
- *
- * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
- * @copyright Meritoo.pl
- */
-trait E
-{
-}
Author	SHA1	Message	Date
Meritoo	5ab2cd9de8	Readme - add badges - TravisCI, Packagist, StyleCI, GitHub commits, GitHub license, Coverage	2017-09-19 17:10:03 +02:00
Meritoo	60eff29e82	Readme - update usage information and add examples	2017-09-19 17:06:29 +02:00
Meritoo	5aa5ff4380	BaseTestCase - fix typo	2017-09-16 14:06:19 +02:00
Meritoo	6483a8f5b7	BaseTypeTestCase - base test case for the type of something	2017-09-16 14:02:10 +02:00
Meritoo	5c0ef79b15	TestCase - make abstract & move from namespace Meritoo\Common\Utilities to Meritoo\Common\Test\Base	2017-09-16 14:01:20 +02:00
Meritoo	324f64f912	Tests - modify namespace "Meritoo\Common\Tests" -> "Meritoo\Common\Test"	2017-09-11 19:57:36 +02:00
Meritoo	5940ebba9a	PHPUnit - use "Meritoo Package" as project name	2017-09-11 13:33:52 +02:00
Meritoo	787b8c697c	Phing - use "Meritoo Package" as project name	2017-09-10 14:16:21 +02:00
Meritoo	96c02cdc3d	Tests - verifyMethodVisibilityAndArguments() method - implementation	2017-09-10 10:22:07 +02:00
Meritoo	87d7bff5f5	TestCase - verifyMethodVisibilityAndArguments() method - verify visibility and arguments of method or class constructor	2017-09-10 10:21:28 +02:00
Meritoo	bd7c874e88	Refactor & fix coding standard	2017-09-09 21:33:49 +02:00
Meritoo	e1ffb78214	Collection of elements (class & tests)	2017-09-07 22:17:44 +02:00
Meritoo	d4dc274763	Add missing information about license	2017-09-07 15:17:52 +02:00
Meritoo	aeea1df04b	Exception - InvalidUrlException - an exception used while url is invalid	2017-08-30 21:27:36 +02:00
Meritoo	b5e63ff619	Regex - move exceptions related to regular expressions to namespace with "Regex"	2017-08-30 21:25:26 +02:00
Meritoo	ecaebcca0e	Remove & ignore the ".idea" folder	2017-08-30 21:07:53 +02:00
Meritoo	17ac1dc72c	Readme - update installation instructions	2017-08-29 23:17:55 +02:00