Collection of elements (class & tests)

Add missing information about license
Exception - InvalidUrlException - an exception used while url is invalid
2026-03-12 17:41:50 +01:00 · 2017-09-07 22:17:44 +02:00 · 2017-09-07 15:17:52 +02:00 · 2017-08-30 21:27:36 +02:00 · 2017-08-30 21:25:26 +02:00 · 2017-08-30 21:07:53 +02:00
26 changed files with 714 additions and 400 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
-.idea/vcs.xml
-.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:
-.idea/**/mongoSettings.xml
-
-## File-based project format:
-*.iws
-
-## Plugin-specific files:
-
-# IntelliJ
-out/
-
-# mpeltonen/sbt-idea plugin
-.idea_modules/
-
-# JIRA plugin
-atlassian-ide-plugin.xml
-
-# Cursive Clojure plugin
-.idea/replstate.xml
-
-# 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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-          <root url="file://$MODULE_DIR$/vendor/webmozart/assert" />
-        </CLASSES>
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-          <root url="file://$MODULE_DIR$/vendor/composer" />
-          <root url="file://$MODULE_DIR$/vendor/doctrine/annotations" />
-          <root url="file://$MODULE_DIR$/vendor/doctrine/cache" />
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-          <root url="file://$MODULE_DIR$/vendor/doctrine/instantiator" />
-          <root url="file://$MODULE_DIR$/vendor/doctrine/lexer" />
-          <root url="file://$MODULE_DIR$/vendor/doctrine/orm" />
-          <root url="file://$MODULE_DIR$/vendor/friendsofphp/php-cs-fixer" />
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-          <root url="file://$MODULE_DIR$/vendor/theseer/fdomdocument" />
-          <root url="file://$MODULE_DIR$/vendor/webmozart/assert" />
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--- a/.idea/composerJson.xml
+++ b/.idea/composerJson.xml
@@ -1,9 +0,0 @@
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-<project version="4">
-  <component name="ComposerJsonPluginSettings">
-    <unboundedVersionInspectionSettings>
-      <excludedPackages />
-    </unboundedVersionInspectionSettings>
-    <customRepositories />
-  </component>
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--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Encoding">
-    <file url="PROJECT" charset="UTF-8" />
-  </component>
-</project>
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -1,8 +0,0 @@
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-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
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-    </modules>
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--- a/.idea/php.xml
+++ b/.idea/php.xml
@@ -1,75 +0,0 @@
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-      <path value="$PROJECT_DIR$/vendor/paragonie/random_compat" />
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--- a/.idea/webResources.xml
+++ b/.idea/webResources.xml
@@ -1,14 +0,0 @@
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--- a/README.md
+++ b/README.md
@@ -3,20 +3,7 @@ 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
--- 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": "0.0.3",
    "authors": [
        {
            "name": "Meritoo.pl",
--- 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/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/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/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
@@ -1,5 +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\Utilities;

 use DateTime;
--- a/tests/Meritoo/Common/Tests/Collection/CollectionTest.php
+++ b/tests/Meritoo/Common/Tests/Collection/CollectionTest.php
@@ -0,0 +1,334 @@
+<?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\Collection;
+
+use ArrayIterator;
+use Meritoo\Common\Collection\Collection;
+use PHPUnit_Framework_TestCase;
+use ReflectionClass;
+
+/**
+ * Tests of the collection of elements
+ *
+ * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
+ * @copyright Meritoo.pl
+ */
+class CollectionTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * 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()
+    {
+        $reflection = new ReflectionClass(Collection::class);
+        $method = $reflection->getMethod('exists');
+
+        self::assertTrue($method->isPrivate());
+        self::assertEquals(1, $method->getNumberOfParameters());
+        self::assertEquals(1, $method->getNumberOfRequiredParameters());
+    }
+
+    /**
+     * {@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/Utilities/DatePeriodTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/DatePeriodTest.php
@@ -1,11 +1,18 @@
 <?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;

 use DateTime;
 use Generator;
 use Meritoo\Common\Utilities\DatePeriod;
 use Meritoo\Common\Utilities\TestCase;
+use ReflectionClass;

 /**
 * Tests of date's period
@@ -15,6 +22,16 @@ use Meritoo\Common\Utilities\TestCase;
 */
 class DatePeriodTest extends TestCase
 {
+    public function testConstructorVisibilityAndArguments()
+    {
+        $reflection = new ReflectionClass(DatePeriod::class);
+        $constructor = $reflection->getConstructor();
+
+        self::assertTrue($constructor->isPublic());
+        self::assertEquals(2, $constructor->getNumberOfParameters());
+        self::assertEquals(0, $constructor->getNumberOfRequiredParameters());
+    }
+
    /**
     * @param DateTime $startDate (optional) Start date of period
     * @param DateTime $endDate   (optional) End date of period
--- a/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
@@ -9,8 +9,8 @@
 namespace Meritoo\Common\Tests\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\Utilities\Locale;
 use Meritoo\Common\Utilities\Miscellaneous;
 use Meritoo\Common\Utilities\TestCase;
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/A.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/A.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\Tests\Utilities\Reflection;

 /**
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/B.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/B.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\Tests\Utilities\Reflection;

 /**
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/C.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/C.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\Tests\Utilities\Reflection;

 /**
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/D.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/D.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\Tests\Utilities\Reflection;

 /**
--- a/tests/Meritoo/Common/Tests/Utilities/Reflection/E.php
+++ b/tests/Meritoo/Common/Tests/Utilities/Reflection/E.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\Tests\Utilities\Reflection;

 /**
--- a/tests/Meritoo/Common/Tests/Utilities/UriTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/UriTest.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
 * (c) Meritoo.pl, http://www.meritoo.pl
 * For the full copyright and license information, please view the LICENSE
Author	SHA1	Message	Date
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