[Miscellaneous] [Regex] Implement data providers in tests

src/Utilities/Miscellaneous.php

@@ -889,8 +889,12 @@ class Miscellaneous
      * @param string $separator The separator which divides elements of string
      * @return array
      */
-    public static function getStringElements($string, $separator)
+    public static function getStringElements(string $string, string $separator): array
     {
+        if (empty($string) || empty($separator)) {
+            return [];
+        }
+
         $matches = [];
         $pattern = sprintf('|[^\%s]+|', $separator);
         $matchCount = preg_match_all($pattern, $string, $matches);
@@ -909,21 +913,15 @@ class Miscellaneous
      * @param string $separator The separator which divides elements of string
      * @return null|string
      */
-    public static function getLastElementOfString($string, $separator)
+    public static function getLastElementOfString($string, $separator): ?string
     {
         $elements = self::getStringElements($string, $separator);
 
-        /*
-         * No elements?
-         * Nothing to do
-         */
         if (empty($elements)) {
             return null;
         }
 
-        $element = Arrays::getLastElement($elements);
-
-        return trim($element);
+        return Arrays::getLastElement($elements);
     }
 
     /**

tests/Utilities/MiscellaneousTest.php

@@ -94,22 +94,16 @@ class MiscellaneousTest extends BaseTestCase
         self::assertEquals($withoutExtension, Miscellaneous::getFileNameWithoutExtension($fileName));
     }
 
-    public function testGetFileNameFromPath(): void
+    /**
+     * @param string $description Description of test
+     * @param string $path        A path that contains file name
+     * @param string $expected    Expected file name
+     *
+     * @dataProvider provideFilePath
+     */
+    public function testGetFileNameFromPath(string $description, string $path, string $expected): void
     {
-        // Path with file
-        self::assertEquals('sit.amet.JPG', Miscellaneous::getFileNameFromPath('lorem/ipsum-dolor/sit.amet.JPG'));
-
-        // Path with complicated name of file
-        self::assertEquals('this-1_2 3 & my! 4+file.jpg', Miscellaneous::getFileNameFromPath('lorem/ipsum-dolor/this-1_2 3 & my! 4+file.jpg'));
-
-        // Path without file
-        self::assertEquals('', Miscellaneous::getFileNameFromPath('lorem/ipsum-dolor/sit-amet'));
-
-        // Path with a dot "." in name of directory
-        self::assertEquals('sit.amet.JPG', Miscellaneous::getFileNameFromPath('lorem/ipsum.dolor/sit.amet.JPG'));
-
-        // Relative path
-        self::assertEquals('sit.amet.JPG', Miscellaneous::getFileNameFromPath('lorem/ipsum/../dolor/sit.amet.JPG'));
+        static::assertEquals($expected, Miscellaneous::getFileNameFromPath($path), $description);
     }
 
     public function testGetUniqueFileName()
@@ -480,12 +474,21 @@ class MiscellaneousTest extends BaseTestCase
         self::assertEquals('1.75 MB', Miscellaneous::getHumanReadableSize(1024 * 1024 * 1.75));
     }
 
-    public function testGetLastElementOfString()
-    {
-        self::assertEquals('elit', Miscellaneous::getLastElementOfString($this->stringCommaSeparated, ' '));
-        self::assertEquals('consectetur adipiscing elit', Miscellaneous::getLastElementOfString($this->stringCommaSeparated, ','));
-        self::assertEquals(null, Miscellaneous::getLastElementOfString($this->stringCommaSeparated, ';'));
-        self::assertEquals(null, Miscellaneous::getLastElementOfString($this->stringCommaSeparated, '.'));
+    /**
+     * @param string      $description
+     * @param string      $string
+     * @param string      $separator
+     * @param string|null $expected
+     *
+     * @dataProvider provideLastElementOfString
+     */
+    public function testGetLastElementOfString(
+        string $description,
+        string $string,
+        string $separator,
+        ?string $expected
+    ): void {
+        self::assertEquals($expected, Miscellaneous::getLastElementOfString($string, $separator), $description);
     }
 
     public function testTrimSmart()
@@ -554,15 +557,21 @@ class MiscellaneousTest extends BaseTestCase
         self::assertEquals(sprintf('%s.%s', $fileName, 'txt'), Miscellaneous::includeFileExtension($fileName, 'txt'));
     }
 
-    public function testGetStringElements()
-    {
-        $elements = [
-            'Lorem ipsum dolor sit amet',
-            ' consectetur adipiscing elit',
-        ];
-
-        self::assertEquals($elements, Miscellaneous::getStringElements($this->stringCommaSeparated, ','));
-        self::assertEquals([], Miscellaneous::getStringElements($this->stringCommaSeparated, ';'));
+    /**
+     * @param string $description
+     * @param string $string
+     * @param string $separator
+     * @param array  $expected
+     *
+     * @dataProvider provideStringElements
+     */
+    public function testGetStringElements(
+        string $description,
+        string $string,
+        string $separator,
+        array $expected
+    ): void {
+        self::assertEquals($expected, Miscellaneous::getStringElements($string, $separator), $description);
     }
 
     public function testGetStringWithoutLastElement()
@@ -1566,6 +1575,145 @@ class MiscellaneousTest extends BaseTestCase
         ];
     }
 
+    public function provideFilePath(): ?Generator
+    {
+        yield[
+            'Path with file',
+            'lorem/ipsum-dolor/sit.amet.JPG',
+            'sit.amet.JPG',
+        ];
+
+        yield[
+            'Path with complicated name of file',
+            'lorem/ipsum-dolor/this-1_2 3 & my! 4+file.jpg',
+            'this-1_2 3 & my! 4+file.jpg',
+        ];
+
+        yield[
+            'Path without file',
+            'lorem/ipsum-dolor/sit-amet',
+            '',
+        ];
+
+        yield[
+            'Path with a dot "." in name of directory',
+            'lorem/ipsum.dolor/sit.amet.JPG',
+            'sit.amet.JPG',
+        ];
+
+        yield[
+            'Relative path',
+            'lorem/ipsum/../dolor/sit.amet.JPG',
+            'sit.amet.JPG',
+        ];
+    }
+
+    public function provideStringElements(): ?Generator
+    {
+        yield[
+            'An empty string',
+            '',
+            '',
+            [],
+        ];
+
+        yield[
+            'One-character string',
+            'a',
+            ',',
+            [],
+        ];
+
+        yield[
+            'String without given separator',
+            'abc',
+            ',',
+            [],
+        ];
+
+        yield[
+            'Simple, short string',
+            'a, b, c',
+            ',',
+            [
+                'a',
+                ' b',
+                ' c',
+            ],
+        ];
+
+        yield[
+            'A sentence',
+            'Lorem ipsum - dolor sit - amet, consectetur adipiscing - elit.',
+            '-',
+            [
+                'Lorem ipsum ',
+                ' dolor sit ',
+                ' amet, consectetur adipiscing ',
+                ' elit.',
+            ],
+        ];
+
+        yield[
+            'A class namespace',
+            'This\\Is\\My\\Class\\For\\Testing',
+            '\\',
+            [
+                'This',
+                'Is',
+                'My',
+                'Class',
+                'For',
+                'Testing',
+            ],
+        ];
+    }
+
+    public function provideLastElementOfString(): ?Generator
+    {
+        yield[
+            'An empty string',
+            '',
+            '',
+            null,
+        ];
+
+        yield[
+            'One-character string',
+            'a',
+            ',',
+            null,
+        ];
+
+        yield[
+            'String without given separator',
+            'abc',
+            ',',
+            null,
+        ];
+
+        yield[
+            'Simple, short string',
+            'a, b, c',
+            ',',
+            ' c',
+        ];
+
+        yield[
+            'A sentence',
+            'Lorem ipsum - dolor sit - amet, consectetur adipiscing - elit.',
+            '-',
+            ' elit.',
+        ];
+
+        yield[
+            'A class namespace',
+            'This\\Is\\My\\Class\\For\\Testing',
+            '\\',
+            'Testing',
+        ];
+    }
+
     /**
      * {@inheritdoc}
      */

tests/Utilities/RegexTest.php

@@ -244,16 +244,16 @@ class RegexTest extends BaseTestCase
         self::assertTrue(Regex::contains($this->simpleText, 'l'));
     }
 
-    public function testIsFileName(): void
+    /**
+     * @param string $description Description of test
+     * @param string $fileName
+     * @param bool   $expected    Expected result
+     *
+     * @dataProvider provideFileName
+     */
+    public function testIsFileName(string $description, string $fileName, bool $expected): void
     {
-        $filePath = __FILE__;
-        $directoryPath = dirname($filePath);
-
-        self::assertTrue(Regex::isFileName($filePath));
-        self::assertTrue(Regex::isFileName('this-1_2 3 & my! 4+file.jpg'));
-
-        self::assertFalse(Regex::isFileName($directoryPath));
-        self::assertTrue(Regex::isFileName('directory1/directory2/this-1_2 3 & my! 4+file.jpg'));
+        static::assertSame($expected, Regex::isFileName($fileName), $description);
     }
 
     public function testIsQuoted()
@@ -2214,6 +2214,39 @@ class RegexTest extends BaseTestCase
         ];
     }
 
+    public function provideFileName(): ?Generator
+    {
+        yield[
+            'An empty string',
+            '',
+            false,
+        ];
+
+        yield[
+            'Path of this file, of file with test case',
+            __DIR__,
+            false,
+        ];
+
+        yield[
+            'Name of this file, of file with test case',
+            __FILE__,
+            true,
+        ];
+
+        yield[
+            'Complicated name of file',
+            'this-1_2 3 & my! 4+file.jpg',
+            true,
+        ];
+
+        yield[
+            'Complicated name of file',
+            'directory1/directory2/this-1_2 3 & my! 4+file.jpg',
+            true,
+        ];
+    }
+
     /**
      * {@inheritdoc}
      */