TestHandler example

parent::setUp();

    $this->setupViewsData();
    $this->setupExecutableAndView();
    $this->setupDisplay();
  }

  /** * @covers ::getEntityType */
  public function testGetEntityTypeForFieldOnBaseTable() {
    $handler = new TestHandler([], 'test_handler', []);
    $handler->init($this->executable, $this->display);

    $this->view->expects($this->any())
      ->method('get')
      ->with('base_table')
      ->willReturn('test_entity_type_table');
    $this->viewsData->expects($this->any())
      ->method('get')
      ->with('test_entity_type_table')
      ->willReturn([
        'table' => ['entity type' => 'test_entity_type'],
      ]);