class DisplayOpmlFeedTest

class DisplayOpmlFeedTest extends UITestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_aggregator_style_opml',
    ];
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'views_ui',
        'aggregator',
        'aggregator_test_views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = [
        'aggregator_test_views',
    ]) : void {
        parent::setUp($import_test_views, $modules);
    }
    
    /**
     * Tests feed display admin UI.
     */
    public function testFeedUI() {
        // Test the OPML feed.
        foreach (self::$testViews as $view_name) {
            $this->checkFeedViewUi($view_name);
        }
    }
    
    /**
     * Checks views UI for a specific feed view.
     *
     * @param string $view_name
     *   The view name to check against.
     */
    protected function checkFeedViewUi($view_name) {
        $this->drupalGet('admin/structure/views');
        // Verify that the page lists the $view_name view.
        // Regression test: ViewListBuilder::getDisplayPaths() did not properly
        // check whether a DisplayPluginCollection was returned in iterating over
        // all displays.
        $this->assertSession()
            ->pageTextContains($view_name);
        // Check the attach TO interface.
        $this->drupalGet('admin/structure/views/nojs/display/' . $view_name . '/feed_1/displays');
        // Display labels should be escaped.
        $this->assertSession()
            ->assertEscaped('<em>Page</em>');
        // Load all the options of the checkbox.
        $result = $this->xpath('//div[@id="edit-displays"]/div');
        $options = [];
        foreach ($result as $item) {
            $input_node = $item->find('css', 'input');
            if ($input_node->hasAttribute('value')) {
                $options[] = $input_node->getAttribute('value');
            }
        }
        $this->assertEquals([
            'default',
            'page',
        ], $options, 'Make sure all displays appears as expected.');
        // Post and save this and check the output.
        $this->drupalGet('admin/structure/views/nojs/display/' . $view_name . '/feed_1/displays');
        $this->submitForm([
            'displays[page]' => 'page',
        ], 'Apply');
        // Options summary should be escaped.
        $this->assertSession()
            ->assertEscaped('<em>Page</em>');
        $this->assertSession()
            ->responseNotContains('<em>Page</em>');
        $this->drupalGet('admin/structure/views/view/' . $view_name . '/edit/feed_1');
        $this->assertSession()
            ->elementTextContains('xpath', '//*[@id="views-feed-1-displays"]', 'Page');
        // Add the default display, so there should now be multiple displays.
        $this->drupalGet('admin/structure/views/nojs/display/' . $view_name . '/feed_1/displays');
        $this->submitForm([
            'displays[default]' => 'default',
        ], 'Apply');
        $this->drupalGet('admin/structure/views/view/' . $view_name . '/edit/feed_1');
        $this->assertSession()
            ->elementTextContains('xpath', '//*[@id="views-feed-1-displays"]', 'Multiple displays');
    }

}