function AttributeTest::testRemoveClasses

Tests removing class attributes with the AttributeArray helper method. @covers ::removeClass

File

core/tests/Drupal/Tests/Core/Template/AttributeTest.php, line 202

Class

AttributeTest

@coversDefaultClass \Drupal\Core\Template\Attribute[[api-linebreak]] @group Template

Namespace

Code

public function testRemoveClasses() : void {
  // Add duplicate class to ensure that both duplicates are removed.
  $classes = [
    'example-class',
    'aa',
    'xx',
    'yy',
    'red',
    'green',
    'blue',
    'red',
  ];
  $attribute = new Attribute([
    'class' => $classes,
  ]);
  // Remove one class.
  $attribute->removeClass('example-class');
  $this->assertNotContains('example-class', $attribute['class']->value());
  // Remove multiple classes.
  $attribute->removeClass('xx', 'yy');
  $this->assertNotContains([
    'xx',
    'yy',
  ], $attribute['class']->value());
  // Remove an array of classes.
  $attribute->removeClass([
    'red',
    'green',
    'blue',
  ]);
  $this->assertNotContains([
    'red',
    'green',
    'blue',
  ], $attribute['class']->value());
  // Remove a class that does not exist.
  $attribute->removeClass('gg');
  $this->assertNotContains([
    'gg',
  ], $attribute['class']->value());
  // Test that the array index remains sequential.
  $this->assertEquals([
    'aa',
  ], $attribute['class']->value());
  $attribute->removeClass('aa');
  $this->assertEmpty((string) $attribute);
}