function BlockDemoTest::testBlockDemo

Check for the accessibility of the admin block demo page.

File

core/modules/block/tests/src/Functional/BlockDemoTest.php, line 29

Class

BlockDemoTest

Tests the block demo page with admin themes.

Namespace

Code

public function testBlockDemo() : void {
    // Create administrative user.
    $admin_user = $this->drupalCreateUser([
        'administer blocks',
        'administer themes',
    ]);
    $this->drupalLogin($admin_user);
    // Confirm we have access to the block demo page for the default theme.
    $config = $this->container
        ->get('config.factory')
        ->get('system.theme');
    $default_theme = $config->get('default');
    $this->drupalGet('admin/structure/block/demo/' . $default_theme);
    $this->assertSession()
        ->statusCodeEquals(200);
    $this->assertSession()
        ->linkByHrefExists('admin/structure/block');
    $this->assertSession()
        ->linkByHrefNotExists('admin/structure/block/list/' . $default_theme);
    // All available themes in core.
    $available_themes = [
        'olivero',
        'claro',
        'stark',
    ];
    // All available themes minute minus the default theme.
    $themes = array_diff($available_themes, [
        $default_theme,
    ]);
    foreach ($themes as $theme) {
        // Install theme.
        $this->container
            ->get('theme_installer')
            ->install([
            $theme,
        ]);
        // Confirm access to the block demo page for the theme.
        $this->drupalGet('admin/structure/block/demo/' . $theme);
        $this->assertSession()
            ->statusCodeEquals(200);
        // Confirm existence of link for "Exit block region demonstration".
        $this->assertSession()
            ->linkByHrefExists('admin/structure/block/list/' . $theme);
    }
    // Confirm access to the block demo page is denied for an invalid theme.
    $this->drupalGet('admin/structure/block/demo/invalid_theme');
    $this->assertSession()
        ->statusCodeEquals(403);
}