function FactoryTest::testReflectionFactory

Tests that the Reflection factory can create a plugin instance.

The mock plugin classes use different values for their constructors allowing us to test the reflection capabilities as well.

We use derivative classes here because the block test type has the reflection factory and it provides some additional variety in plugin object creation.

File

core/tests/Drupal/KernelTests/Core/Plugin/FactoryTest.php, line 51

Class

FactoryTest

Tests that plugins are correctly instantiated.

Namespace

Code

public function testReflectionFactory() : void {
    // Ensure a non-derivative plugin can be instantiated.
    $plugin = $this->mockBlockManager
        ->createInstance('user_login', [
        'title' => 'Enter your login name and password',
    ]);
    $this->assertSame('Drupal\\plugin_test\\Plugin\\plugin_test\\mock_block\\MockUserLoginBlock', get_class($plugin), 'Correct plugin class instantiated.');
    $this->assertSame('Enter your login name and password', $plugin->getTitle(), 'Plugin instance correctly configured.');
    // Ensure a derivative plugin can be instantiated.
    $plugin = $this->mockBlockManager
        ->createInstance('menu:main_menu', [
        'depth' => 2,
    ]);
    $this->assertSame('<ul><li>1<ul><li>1.1</li></ul></li></ul>', $plugin->getContent(), 'Derived plugin instance correctly instantiated and configured.');
    // Ensure that attempting to instantiate non-existing plugins throws a
    // PluginException. Test this for a non-existing base plugin, a non-existing
    // derivative plugin, and a base plugin that may not be used without
    // deriving.
    foreach ([
        'non_existing',
        'menu:non_existing',
        'menu',
    ] as $invalid_id) {
        try {
            $this->mockBlockManager
                ->createInstance($invalid_id);
            $this->fail('Drupal\\Component\\Plugin\\Exception\\ExceptionInterface expected');
        } catch (\Exception $e) {
            $this->assertInstanceOf(ExceptionInterface::class, $e);
        }
    }
}