class SettingsTrayTest

class SettingsTrayTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'settings_tray',
        'settings_tray_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Gets the block CSS selector.
     *
     * @param \Drupal\block\Entity\Block $block
     *   The block.
     *
     * @return string
     *   The CSS selector.
     */
    protected function getBlockSelector(Block $block) {
        return '#block-' . $block->id();
    }
    
    /**
     * Tests the 3 possible forms[settings_tray] annotations: class, FALSE, none.
     *
     * There is also functional JS test coverage to ensure that the two blocks
     * that support Settings Tray (the "class" and "none" cases) do work
     * correctly.
     *
     * @see SettingsTrayBlockFormTest::testBlocks()
     */
    public function testPossibleAnnotations() : void {
        $test_block_plugin_ids = [
            // Block that explicitly provides an "settings_tray" form class.
'settings_tray_test_class',
            // Block that explicitly provides no "settings_tray" form, thus opting out.
'settings_tray_test_false',
            // Block that does nothing explicit for Settings Tray.
'settings_tray_test_none',
        ];
        $placed_blocks = [];
        foreach ($test_block_plugin_ids as $plugin_id) {
            $placed_blocks[$plugin_id] = $this->placeBlock($plugin_id);
        }
        $this->drupalGet('');
        $web_assert = $this->assertSession();
        foreach ($placed_blocks as $plugin_id => $placed_block) {
            $block_selector = $this->getBlockSelector($placed_block);
            // All blocks are rendered.
            $web_assert->elementExists('css', $block_selector);
            // All blocks except 'settings_tray_test_false' are editable. For more
            // detailed test coverage, which requires JS execution, see
            // \Drupal\Tests\settings_tray\FunctionalJavascript\SettingsTrayBlockFormTest::testBlocks().
            if ($plugin_id === 'settings_tray_test_false') {
                $web_assert->elementNotExists('css', "{$block_selector}[data-drupal-settingstray=\"editable\"]");
            }
            else {
                $web_assert->elementExists('css', "{$block_selector}[data-drupal-settingstray=\"editable\"]");
            }
        }
    }
    
    /**
     * Tests that certain blocks opt out from Settings Tray.
     */
    public function testOptOut() : void {
        $web_assert = $this->assertSession();
        $non_excluded_block = $this->placeBlock('system_powered_by_block');
        $excluded_block_plugin_ids = [
            'page_title_block',
            'system_main_block',
            'settings_tray_test_false',
        ];
        $block_selectors = [];
        // Place blocks that should be excluded.
        foreach ($excluded_block_plugin_ids as $excluded_block_plugin_id) {
            // The block HTML 'id' attribute will be "block-[block_id]".
            $block_selectors[] = $this->getBlockSelector($this->placeBlock($excluded_block_plugin_id));
        }
        $this->drupalGet('');
        // Assert that block has been marked as "editable" and contextual that
        // should exist does.
        $web_assert->elementExists('css', $this->getBlockSelector($non_excluded_block) . "[data-drupal-settingstray=\"editable\"]");
        // Assert that each block that has a "forms[settings_tray] = FALSE" annotation:
        // - is still rendered on the page
        // - but is not marked as "editable" by settings_tray_preprocess_block()
        // - and does not have the Settings Tray contextual link.
        foreach ($block_selectors as $block_selector) {
            $web_assert->elementExists('css', $block_selector);
            $web_assert->elementNotExists('css', "{$block_selector}[data-drupal-settingstray=\"editable\"]");
            $web_assert->elementNotExists('css', "{$block_selector} [data-settings-tray-edit]");
        }
    }

}