function ModuleHandlerTest::testResetImplementationsClearsHooks

Tests that resetImplementations() clears the hook memory cache.

@covers ::resetImplementations

File

core/tests/Drupal/KernelTests/Core/Extension/ModuleHandlerTest.php, line 45

Class

ModuleHandlerTest

@coversDefaultClass \Drupal\Core\Extension\ModuleHandler

Namespace

Code

public function testResetImplementationsClearsHooks() : void {
    $oldModuleHandler = \Drupal::moduleHandler();
    $this->assertHasResetHookImplementations(FALSE, $oldModuleHandler);
    // Installing a module does not trigger ->resetImplementations().
    
    /** @var \Drupal\Core\Extension\ModuleInstallerInterface $moduleInstaller */
    $moduleInstaller = \Drupal::service('module_installer');
    $moduleInstaller->install([
        'module_test',
    ]);
    $this->assertHasResetHookImplementations(FALSE, $oldModuleHandler);
    // Only the new ModuleHandler instance has the updated implementations.
    $moduleHandler = \Drupal::moduleHandler();
    $this->assertHasResetHookImplementations(TRUE, $moduleHandler);
    $backupModuleList = $moduleHandler->getModuleList();
    $moduleListWithout = array_diff_key($backupModuleList, [
        'module_test' => TRUE,
    ]);
    $this->assertArrayHasKey('module_test', $backupModuleList);
    // Silently setting the property does not clear the hooks cache.
    $moduleListProperty = new \ReflectionProperty($moduleHandler, 'moduleList');
    $this->assertSame($backupModuleList, $moduleListProperty->getValue($moduleHandler));
    $moduleListProperty->setValue($moduleHandler, $moduleListWithout);
    $this->assertHasResetHookImplementations(TRUE, $moduleHandler);
    // Directly calling ->resetImplementations() clears the hook caches.
    $moduleHandler->resetImplementations();
    $this->assertHasResetHookImplementations(FALSE, $moduleHandler);
    $moduleListProperty->setValue($moduleHandler, $backupModuleList);
    $this->assertHasResetHookImplementations(FALSE, $moduleHandler);
    $moduleHandler->resetImplementations();
    $this->assertHasResetHookImplementations(TRUE, $moduleHandler);
    // Calling ->setModuleList() triggers ->resetImplementations().
    $moduleHandler->setModuleList([
        'system',
    ]);
    $this->assertHasResetHookImplementations(FALSE, $moduleHandler);
    $moduleHandler->setModuleList($backupModuleList);
    $this->assertHasResetHookImplementations(TRUE, $moduleHandler);
    // Uninstalling a module triggers ->resetImplementations().
    
    /** @var \Drupal\Core\Extension\ModuleInstallerInterface $moduleInstaller */
    $moduleInstaller = \Drupal::service('module_installer');
    $moduleInstaller->uninstall([
        'module_test',
    ]);
    $this->assertSame($moduleListWithout, $moduleHandler->getModuleList());
    $this->assertHasResetHookImplementations(FALSE, $moduleHandler);
}