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- <?php
- namespace Drupal\Tests\Component\Diff\Engine;
- use Drupal\Component\Diff\Engine\DiffOp;
- use PHPUnit\Framework\TestCase;
- use PHPUnit\Framework\Error\Error;
- /**
- * Test DiffOp base class.
- *
- * The only significant behavior here is that ::reverse() should throw an error
- * if not overridden. In versions of this code in other projects, reverse() is
- * marked as abstract, which enforces some of this behavior.
- *
- * @coversDefaultClass \Drupal\Component\Diff\Engine\DiffOp
- *
- * @group Diff
- */
- class DiffOpTest extends TestCase {
- /**
- * DiffOp::reverse() always throws an error.
- *
- * @covers ::reverse
- */
- public function testReverse() {
- if (method_exists($this, 'expectException')) {
- $this->expectException(Error::class);
- }
- else {
- $this->setExpectedException(\PHPUnit_Framework_Error::class);
- }
- $op = new DiffOp();
- $result = $op->reverse();
- }
- }
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