class BasisTestCase

class BasisTestCase extends BackdropWebTestCase {
  protected $profile = 'standard';

  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    theme_enable(array('basis'));
    config_set('system.core', 'theme_default', 'basis');
    parent::setUp();
  }

  /**
   * Tests that body classes are added correctly for CSS updates.
   */
  public function testCssUpdates() {
    // Include Basis's template.php file to get utility functions.
    $path = backdrop_get_path('theme', 'basis');
    include_once $path . '/template.php';

    // Disable the page cache while testing the body classes.
    config_set('system.core', 'cache', 0);

    $css_update_versions = basis_updated_css_versions();
    $latest_update_version = reset($css_update_versions);

    // These tests will intentionally break when we release a second version of
    // Backdrop core with Basis CSS updates. The "update-1-30" string will need
    // to be incremented and the tests should be expanded to cover the new
    // version strings.
    $config = config('basis.settings');
    $this->assertEqual($config->get('css_update'), 'install', 'Basis defaults to using the latest CSS updates at the time Backdrop core is installed.');
    $this->assertEqual($config->get('css_update_version'), $latest_update_version, 'The most recent CSS update is set as the default.');

    $this->backdropGet('<front>');
    // @todo Confirm multiple version strings are included once they exist.
    $this->assertTrue(in_array('update-1-30', $this->getBodyClasses()), 'The current CSS update version exists as a body class.');

    // Set the CSS update version to an empty string for "no updates".
    $config->set('css_update', 'version');
    $config->set('css_update_version', '');
    $config->save();

    $this->backdropGet('<front>');
    $body_class_string = implode(' ', $this->getBodyClasses());
    $this->assertFalse(strpos($body_class_string, 'update'), 'No CSS update classes exist on the body class.');

    // Set the CSS update version to "all" to accept all version changes.
    $config->set('css_update', 'all');
    $config->set('css_update_version', '');
    $config->save();

    $this->backdropGet('<front>');
    // @todo Confirm multiple version strings are included once they exist.
    $this->assertTrue(in_array('update-1-30', $this->getBodyClasses()), 'All CSS update versions exists within the body class.');

    // Set the CSS update version to a specific value.
    $config->set('css_update', 'version');
    $config->set('css_update_version', '1.30');
    $config->save();

    $this->backdropGet('<front>');
    // @todo Confirm multiple version strings are included once they exist.
    $this->assertTrue(in_array('update-1-30', $this->getBodyClasses()), 'The specific CSS update version exists as a body class.');
  }

  /**
   * Get all body classes on the current page as an array.
   *
   * @return string[]
   */
  private function getBodyClasses() {
    $body = current($this->xpath('//body'));
    return explode(' ', (string) $body->attributes()->class);
  }
}