--- /dev/null
+<?php
+
+namespace Drupal\KernelTests\Core\Plugin;
+
+use Drupal\Component\Plugin\Exception\ExceptionInterface;
+
+/**
+ * Tests that plugins are correctly instantiated.
+ *
+ * @group Plugin
+ */
+class FactoryTest extends PluginTestBase {
+
+ /**
+ * Test that DefaultFactory can create a plugin instance.
+ */
+ public function testDefaultFactory() {
+ // Ensure a non-derivative plugin can be instantiated.
+ $plugin = $this->testPluginManager->createInstance('user_login', ['title' => 'Please enter your login name and password']);
+ $this->assertIdentical(get_class($plugin), 'Drupal\plugin_test\Plugin\plugin_test\mock_block\MockUserLoginBlock', 'Correct plugin class instantiated with default factory.');
+ $this->assertIdentical($plugin->getTitle(), 'Please enter your login name and password', 'Plugin instance correctly configured.');
+
+ // Ensure that attempting to instantiate non-existing plugins throws a
+ // PluginException.
+ try {
+ $this->testPluginManager->createInstance('non_existing');
+ $this->fail('Drupal\Component\Plugin\Exception\ExceptionInterface expected');
+ }
+ catch (ExceptionInterface $e) {
+ $this->pass('Drupal\Component\Plugin\Exception\ExceptionInterface expected and caught.');
+ }
+ catch (\Exception $e) {
+ $this->fail('Drupal\Component\Plugin\Exception\ExceptionInterface expected, but ' . get_class($e) . ' was thrown.');
+ }
+ }
+
+ /**
+ * Test 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.
+ */
+ public function testReflectionFactory() {
+ // Ensure a non-derivative plugin can be instantiated.
+ $plugin = $this->mockBlockManager->createInstance('user_login', ['title' => 'Please enter your login name and password']);
+ $this->assertIdentical(get_class($plugin), 'Drupal\plugin_test\Plugin\plugin_test\mock_block\MockUserLoginBlock', 'Correct plugin class instantiated.');
+ $this->assertIdentical($plugin->getTitle(), 'Please enter your login name and password', 'Plugin instance correctly configured.');
+
+ // Ensure a derivative plugin can be instantiated.
+ $plugin = $this->mockBlockManager->createInstance('menu:main_menu', ['depth' => 2]);
+ $this->assertIdentical($plugin->getContent(), '<ul><li>1<ul><li>1.1</li></ul></li></ul>', '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 (ExceptionInterface $e) {
+ $this->pass('Drupal\Component\Plugin\Exception\ExceptionInterface expected and caught.');
+ }
+ catch (\Exception $e) {
+ $this->fail('An unexpected Exception of type "' . get_class($e) . '" was thrown with message ' . $e->getMessage());
+ }
+ }
+ }
+
+}