class DiffFormatterTest

Same name and namespace in other branches
  1. 11.x core/tests/Drupal/Tests/Component/Diff/DiffFormatterTest.php \Drupal\Tests\Component\Diff\DiffFormatterTest

Test DiffFormatter classes.

@coversDefaultClass \Drupal\Component\Diff\DiffFormatter

@group Diff

Hierarchy

  • class \Drupal\Tests\Component\Diff\DiffFormatterTest extends \PHPUnit\Framework\TestCase

Expanded class hierarchy of DiffFormatterTest

File

core/tests/Drupal/Tests/Component/Diff/DiffFormatterTest.php, line 18

Namespace

Drupal\Tests\Component\Diff
View on git.drupalcode.org
View source 
class DiffFormatterTest extends TestCase {
  
  /**
   * @return array
   *   - Expected formatted diff output.
   *   - First array of text to diff.
   *   - Second array of text to diff.
   */
  public static function provideTestDiff() {
    return [
      'empty' => [
        '',
        [],
        [],
      ],
      'add' => [
        "3a3\n> line2a\n",
        [
          'line1',
          'line2',
          'line3',
        ],
        [
          'line1',
          'line2',
          'line2a',
          'line3',
        ],
      ],
      'delete' => [
        "3d3\n< line2a\n",
        [
          'line1',
          'line2',
          'line2a',
          'line3',
        ],
        [
          'line1',
          'line2',
          'line3',
        ],
      ],
      'change' => [
        "3c3\n< line2a\n---\n> line2b\n",
        [
          'line1',
          'line2',
          'line2a',
          'line3',
        ],
        [
          'line1',
          'line2',
          'line2b',
          'line3',
        ],
      ],
    ];
  }
  
  /**
   * Tests whether op classes returned by DiffEngine::diff() match expectations.
   *
   * @covers ::format
   * @dataProvider provideTestDiff
   */
  public function testDiff($expected, $from, $to) : void {
    $diff = new Diff($from, $to);
    $formatter = new DiffFormatter();
    $output = $formatter->format($diff);
    $this->assertEquals($expected, $output);
  }

}

Members

Title Modifiers Object type Summary
DiffFormatterTest::provideTestDiff public static function
DiffFormatterTest::testDiff public function Tests whether op classes returned by DiffEngine::diff() match expectations.

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