assertEntityValues example

'bundle' => 'entity_test',
      'mode' => 'default',
      'content' => [
        'foo' => [
          'type' => 'visible',
        ],
      ],
      'hidden' => [
        'bar' => TRUE,
      ],
    ];
    $this->assertEntityValues($expected, $entity_display->toArray());

    // Save the display.     // the 'content' property and the visible field has the default region set.     $entity_display->save();

    // The dependencies have been updated.     $expected['dependencies']['module'] = [
      'entity_test',
      'field_layout',
      'layout_discovery',
    ];