function ModuleImplementsAlterTest::testModuleImplementsAlter in Zircon Profile 8
Same name and namespace in other branches
- 8.0 core/modules/system/src/Tests/Module/ModuleImplementsAlterTest.php \Drupal\system\Tests\Module\ModuleImplementsAlterTest::testModuleImplementsAlter()
Tests hook_module_implements_alter() adding an implementation.
See also
\Drupal\Core\Extension\ModuleHandler::buildImplementationInfo()
module_test_module_implements_alter()
File
- core/
modules/ system/ src/ Tests/ Module/ ModuleImplementsAlterTest.php, line 25 - Contains \Drupal\system\Tests\Module\ModuleImplementsAlterTest.
Class
Namespace
Drupal\system\Tests\ModuleCode
function testModuleImplementsAlter() {
// Get an instance of the module handler, to observe how it is going to be
// replaced.
$module_handler = \Drupal::moduleHandler();
$this
->assertTrue($module_handler === \Drupal::moduleHandler(), 'Module handler instance is still the same.');
// Install the module_test module.
\Drupal::service('module_installer')
->install(array(
'module_test',
));
// Assert that the \Drupal::moduleHandler() instance has been replaced.
$this
->assertFalse($module_handler === \Drupal::moduleHandler(), 'The \\Drupal::moduleHandler() instance has been replaced during \\Drupal::moduleHandler()->install().');
// Assert that module_test.module is now included.
$this
->assertTrue(function_exists('module_test_modules_installed'), 'The file module_test.module was successfully included.');
$this
->assertTrue(array_key_exists('module_test', \Drupal::moduleHandler()
->getModuleList()), 'module_test is in the module list.');
$this
->assertTrue(in_array('module_test', \Drupal::moduleHandler()
->getImplementations('modules_installed')), 'module_test implements hook_modules_installed().');
$this
->assertTrue(in_array('module_test', \Drupal::moduleHandler()
->getImplementations('module_implements_alter')), 'module_test implements hook_module_implements_alter().');
// Assert that module_test.implementations.inc is not included yet.
$this
->assertFalse(function_exists('module_test_altered_test_hook'), 'The file module_test.implementations.inc is not included yet.');
// Trigger hook discovery for hook_altered_test_hook().
// Assert that module_test_module_implements_alter(*, 'altered_test_hook')
// has added an implementation.
$this
->assertTrue(in_array('module_test', \Drupal::moduleHandler()
->getImplementations('altered_test_hook')), 'module_test implements hook_altered_test_hook().');
// Assert that module_test.implementations.inc was included as part of the process.
$this
->assertTrue(function_exists('module_test_altered_test_hook'), 'The file module_test.implementations.inc was included.');
}