getBlockTests example

'access toolbar',
      'administer nodes',
      'search content',
    ]);
    $this->drupalLogin($user);
  }

  /** * Tests opening off-canvas dialog by click blocks and elements in the blocks. */
  public function testBlocks() {
    foreach ($this->getBlockTests() as $test) {
      call_user_func_array([$this, 'doTestBlocks'], array_values($test));
    }
  }

  /** * Tests opening off-canvas dialog by click blocks and elements in the blocks. */
  protected function doTestBlocks($theme, $block_plugin, $new_page_text, $element_selector, $label_selector, $button_text, $toolbar_item, $permissions) {
    if ($permissions) {
      $this->grantPermissions(Role::load(Role::AUTHENTICATED_ID), $permissions);
    }