class NodeTypeExampleTest

class NodeTypeExampleTest extends ExamplesBrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
        'node_type_example',
    ];
    
    /**
     * The installation profile to use with this test.
     *
     * We need the 'minimal' profile in order to make sure the Tool block is
     * available.
     *
     * @var string
     */
    protected $profile = 'minimal';
    
    /**
     * Data provider for testing menu links.
     *
     * @return array
     *   Array of page -> link relationships to check for.
     *   - The key is the path to the page where our link should appear.
     *   - The value is the link that should appear on that page.
     */
    protected function providerMenuLinks() {
        return [
            '' => '/examples/node-type-example',
        ];
    }
    
    /**
     * Verify and validate that default menu links were loaded for this module.
     */
    public function testNodeTypeExample() {
        $assert = $this->assertSession();
        // Test that our page loads.
        $this->drupalGet('/examples/node-type-example');
        $assert->statusCodeEquals(200);
        // Test that our menu links were created.
        $links = $this->providerMenuLinks();
        foreach ($links as $page => $path) {
            $this->drupalGet($page);
            $assert->linkByHrefExists($path);
        }
    }
    
    /**
     * Test our new content types.
     *
     * Tests for the following:
     *
     * - That our content types appear in the user interface.
     * - That our unlocked content type is unlocked.
     * - That our locked content type is locked.
     * - That we can create content using the user interface.
     * - That our created content does appear in the database.
     */
    public function testNodeTypes() {
        $assert = $this->assertSession();
        // Log in an admin user.
        $admin_user = $this->drupalCreateUser([
            'administer content types',
        ]);
        $this->drupalLogin($admin_user);
        // Get a list of content types.
        $this->drupalGet('/admin/structure/types');
        // Verify that these content types show up in the user interface.
        // Basic content type found.
        $assert->pageTextContains('Example: Basic Content Type');
        // Locked content type found.
        $assert->pageTextContains('Example: Locked Content Type');
        // Check for the locked status of our content types.
        // $nodeType will be of type Drupal\node\NodeTypeInterface.
        $node_type = NodeType::load('basic_content_type');
        $this->assertInstanceOf(NodeTypeInterface::class, $node_type, 'basic_content_type exists.');
        if ($node_type) {
            $this->assertFalse($node_type->isLocked(), 'basic_content_type is not locked.');
        }
        $node_type = NodeType::load('locked_content_type');
        $this->assertInstanceOf(NodeTypeInterface::class, $node_type, 'locked_content_type exists.');
        if ($node_type) {
            $this->assertEquals('locked_content_type', $node_type->isLocked());
        }
        // Log in a content creator.
        $creator_user = $this->drupalCreateUser([
            'create basic_content_type content',
        ]);
        $this->drupalLogin($creator_user);
        // Create a node.
        $edit = [];
        $edit['title[0][value]'] = $this->randomMachineName(8);
        $edit['body[0][value]'] = $this->randomMachineName(16);
        $this->drupalGet('/node/add/basic_content_type');
        $this->submitForm($edit, 'Save');
        // Check that the Basic page has been created.
        $assert->pageTextContains((string) new FormattableMarkup('@post @title has been created.', [
            '@post' => 'Example: Basic Content Type',
            '@title' => $edit['title[0][value]'],
        ]));
        // Check that the node exists in the database.
        $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
        $this->assertInstanceOf(NodeInterface::class, $node, 'Node found in database.');
    }
    
    /**
     * Test that all fields are displayed when content is created.
     */
    public function testNodeCreation() {
        // Login content creator.
        $this->drupalLogin($this->drupalCreateUser([
            'create basic_content_type content',
            'create locked_content_type content',
        ]));
        // Create random strings to insert data into fields.
        $title = 'Test title.';
        $body = 'Test body.';
        $edit = [];
        $edit['title[0][value]'] = $title;
        $edit['body[0][value]'] = $body;
        // Create a basic_content_type content.
        $this->drupalGet('/node/add/basic_content_type');
        $this->submitForm($edit, 'Save');
        // Verify all fields and data of created content is shown.
        $this->assertSession()
            ->pageTextContains($title);
        $this->assertSession()
            ->pageTextContains($body);
        // Create a locked_content_type content.
        $this->drupalGet('/node/add/locked_content_type');
        $this->submitForm($edit, 'Save');
        // Verify all fields and data of created content is shown.
        $this->assertSession()
            ->pageTextContains($title);
        $this->assertSession()
            ->pageTextContains($body);
    }
    
    /**
     * Verify that user can uninstall and then reinstall node_type_example.
     */
    public function testUninstallReinstall() {
        $session = $this->assertSession();
        // Uninstalling module.
        $module_installer = $this->container
            ->get('module_installer');
        $module_installer->uninstall([
            'node_type_example',
        ]);
        $this->drupalGet('examples/node-type-example');
        $session->statusCodeEquals(404);
        // Re-installing module.
        $module_installer->install([
            'node_type_example',
        ]);
        $this->drupalGet('examples/node-type-example');
        $session->statusCodeEquals(200);
    }

}