diff core/modules/block/tests/src/Kernel/BlockInterfaceTest.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/block/tests/src/Kernel/BlockInterfaceTest.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,103 @@
+<?php
+
+namespace Drupal\Tests\block\Kernel;
+
+use Drupal\Core\Block\BlockPluginInterface;
+use Drupal\Core\Form\FormState;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests that the block plugin can work properly without a supporting entity.
+ *
+ * @group block
+ */
+class BlockInterfaceTest extends KernelTestBase {
+
+  public static $modules = ['system', 'block', 'block_test', 'user'];
+
+  /**
+   * Test configuration and subsequent form() and build() method calls.
+   *
+   * This test is attempting to test the existing block plugin api and all
+   * functionality that is expected to remain consistent. The arrays that are
+   * used for comparison can change, but only to include elements that are
+   * contained within BlockBase or the plugin being tested. Likely these
+   * comparison arrays should get smaller, not larger, as more form/build
+   * elements are moved into a more suitably responsible class.
+   *
+   * Instantiation of the plugin is the primary element being tested here. The
+   * subsequent method calls are just attempting to cause a failure if a
+   * dependency outside of the plugin configuration is required.
+   */
+  public function testBlockInterface() {
+    $manager = $this->container->get('plugin.manager.block');
+    $configuration = [
+      'label' => 'Custom Display Message',
+    ];
+    $expected_configuration = [
+      'id' => 'test_block_instantiation',
+      'label' => 'Custom Display Message',
+      'provider' => 'block_test',
+      'label_display' => BlockPluginInterface::BLOCK_LABEL_VISIBLE,
+      'display_message' => 'no message set',
+    ];
+    // Initial configuration of the block at construction time.
+    /** @var $display_block \Drupal\Core\Block\BlockPluginInterface */
+    $display_block = $manager->createInstance('test_block_instantiation', $configuration);
+    $this->assertIdentical($display_block->getConfiguration(), $expected_configuration, 'The block was configured correctly.');
+
+    // Updating an element of the configuration.
+    $display_block->setConfigurationValue('display_message', 'My custom display message.');
+    $expected_configuration['display_message'] = 'My custom display message.';
+    $this->assertIdentical($display_block->getConfiguration(), $expected_configuration, 'The block configuration was updated correctly.');
+    $definition = $display_block->getPluginDefinition();
+
+    $expected_form = [
+      'provider' => [
+        '#type' => 'value',
+        '#value' => 'block_test',
+      ],
+      'admin_label' => [
+        '#type' => 'item',
+        '#title' => t('Block description'),
+        '#plain_text' => $definition['admin_label'],
+      ],
+      'label' => [
+        '#type' => 'textfield',
+        '#title' => 'Title',
+        '#maxlength' => 255,
+        '#default_value' => 'Custom Display Message',
+        '#required' => TRUE,
+      ],
+      'label_display' => [
+        '#type' => 'checkbox',
+        '#title' => 'Display title',
+        '#default_value' => TRUE,
+        '#return_value' => 'visible',
+      ],
+      'context_mapping' => [],
+      'display_message' => [
+        '#type' => 'textfield',
+        '#title' => t('Display message'),
+        '#default_value' => 'My custom display message.',
+      ],
+    ];
+    $form_state = new FormState();
+    // Ensure there are no form elements that do not belong to the plugin.
+    $actual_form = $display_block->buildConfigurationForm([], $form_state);
+    // Remove the visibility sections, as that just tests condition plugins.
+    unset($actual_form['visibility'], $actual_form['visibility_tabs']);
+    $this->assertIdentical($this->castSafeStrings($actual_form), $this->castSafeStrings($expected_form), 'Only the expected form elements were present.');
+
+    $expected_build = [
+      '#children' => 'My custom display message.',
+    ];
+    // Ensure the build array is proper.
+    $this->assertIdentical($display_block->build(), $expected_build, 'The plugin returned the appropriate build array.');
+
+    // Ensure the machine name suggestion is correct. In truth, this is actually
+    // testing BlockBase's implementation, not the interface itself.
+    $this->assertIdentical($display_block->getMachineNameSuggestion(), 'displaymessage', 'The plugin returned the expected machine name suggestion.');
+  }
+
+}