class DiffEngineTest
Same name in other branches
- 8.9.x core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php \Drupal\Tests\Component\Diff\Engine\DiffEngineTest
- 10 core/tests/Drupal/Tests/Component/Diff/Engine/DiffEngineTest.php \Drupal\Tests\Component\Diff\Engine\DiffEngineTest
Test DiffEngine class.
@coversDefaultClass \Drupal\Component\Diff\Engine\DiffEngine
@group Diff
Hierarchy
- class \Drupal\Tests\Component\Diff\Engine\DiffEngineTest extends \PHPUnit\Framework\TestCase
Expanded class hierarchy of DiffEngineTest
File
-
core/
tests/ Drupal/ Tests/ Component/ Diff/ Engine/ DiffEngineTest.php, line 19
Namespace
Drupal\Tests\Component\Diff\EngineView source
class DiffEngineTest extends TestCase {
/**
* @return array
* - Expected output in terms of return class. A list of class names
* expected to be returned by DiffEngine::diff().
* - An array of strings to change from.
* - An array of strings to change to.
*/
public function provideTestDiff() {
return [
'empty' => [
[],
[],
[],
],
'add' => [
[
DiffOpAdd::class,
],
[],
[
'a',
],
],
'copy' => [
[
DiffOpCopy::class,
],
[
'a',
],
[
'a',
],
],
'change' => [
[
DiffOpChange::class,
],
[
'a',
],
[
'b',
],
],
'copy-and-change' => [
[
DiffOpCopy::class,
DiffOpChange::class,
],
[
'a',
'b',
],
[
'a',
'c',
],
],
'copy-change-copy' => [
[
DiffOpCopy::class,
DiffOpChange::class,
DiffOpCopy::class,
],
[
'a',
'b',
'd',
],
[
'a',
'c',
'd',
],
],
'copy-change-copy-add' => [
[
DiffOpCopy::class,
DiffOpChange::class,
DiffOpCopy::class,
DiffOpAdd::class,
],
[
'a',
'b',
'd',
],
[
'a',
'c',
'd',
'e',
],
],
'copy-delete' => [
[
DiffOpCopy::class,
DiffOpDelete::class,
],
[
'a',
'b',
'd',
],
[
'a',
],
],
];
}
/**
* Tests whether op classes returned by DiffEngine::diff() match expectations.
*
* @covers ::diff
* @dataProvider provideTestDiff
*/
public function testDiff($expected, $from, $to) {
$diff_engine = new DiffEngine();
$diff = $diff_engine->diff($from, $to);
// Make sure we have the same number of results as expected.
$this->assertSameSize($expected, $diff);
// Make sure the diff objects match our expectations.
foreach ($expected as $index => $op_class) {
$this->assertEquals($op_class, get_class($diff[$index]));
}
}
/**
* Tests that two files can be successfully diffed.
*
* @covers ::diff
*/
public function testDiffInfiniteLoop() {
$from = explode("\n", file_get_contents(__DIR__ . '/fixtures/file1.txt'));
$to = explode("\n", file_get_contents(__DIR__ . '/fixtures/file2.txt'));
$diff_engine = new DiffEngine();
$diff = $diff_engine->diff($from, $to);
$this->assertCount(4, $diff);
$this->assertEquals($diff[0], new DiffOpDelete([
' - image.style.max_650x650',
]));
$this->assertEquals($diff[1], new DiffOpCopy([
' - image.style.max_325x325',
]));
$this->assertEquals($diff[2], new DiffOpAdd([
' - image.style.max_650x650',
'_core:',
' default_config_hash: 3mjM9p-kQ8syzH7N8T0L9OnCJDSPvHAZoi3q6jcXJKM',
]));
$this->assertEquals($diff[3], new DiffOpCopy([
'fallback_image_style: max_325x325',
'',
]));
}
}
Members
Title Sort descending | Modifiers | Object type | Summary |
---|---|---|---|
DiffEngineTest::provideTestDiff | public | function | |
DiffEngineTest::testDiff | public | function | Tests whether op classes returned by DiffEngine::diff() match expectations. |
DiffEngineTest::testDiffInfiniteLoop | public | function | Tests that two files can be successfully diffed. |
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