www.aleph1.co.uk Git - yaffs-website/blob - web/core/tests/Drupal/Tests/Component/Diff/DiffFormatterTest.php

   1 <?php
   2
   3 namespace Drupal\Tests\Component\Diff;
   4
   5 use Drupal\Component\Diff\Diff;
   6 use Drupal\Component\Diff\DiffFormatter;
   7
   8 /**
   9  * Test DiffFormatter classes.
  10  *
  11  * @coversDefaultClass \Drupal\Component\Diff\DiffFormatter
  12  *
  13  * @group Diff
  14  */
  15 class DiffFormatterTest extends \PHPUnit_Framework_TestCase {
  16
  17   /**
  18    * @return array
  19    *   - Expected formatted diff output.
  20    *   - First array of text to diff.
  21    *   - Second array of text to diff.
  22    */
  23   public function provideTestDiff() {
  24     return [
  25       'empty' => ['', [], []],
  26       'add' => [
  27         "3a3\n> line2a\n",
  28         ['line1', 'line2', 'line3'],
  29         ['line1', 'line2', 'line2a', 'line3'],
  30       ],
  31       'delete' => [
  32         "3d3\n< line2a\n",
  33         ['line1', 'line2', 'line2a', 'line3'],
  34         ['line1', 'line2', 'line3'],
  35       ],
  36       'change' => [
  37         "3c3\n< line2a\n---\n> line2b\n",
  38         ['line1', 'line2', 'line2a', 'line3'],
  39         ['line1', 'line2', 'line2b', 'line3'],
  40       ],
  41     ];
  42   }
  43
  44   /**
  45    * Tests whether op classes returned by DiffEngine::diff() match expectations.
  46    *
  47    * @covers ::format
  48    * @dataProvider provideTestDiff
  49    */
  50   public function testDiff($expected, $from, $to) {
  51     $diff = new Diff($from, $to);
  52     $formatter = new DiffFormatter();
  53     $output = $formatter->format($diff);
  54     $this->assertEquals($expected, $output);
  55   }
  56
  57 }