public function testAddGetSetDataAttributes()
{
/** @var CM_View_Abstract $viewMock */
$viewMock = $this->getMockBuilder('CM_View_Abstract')->getMock();
$viewResponse = new CM_Frontend_ViewResponse($viewMock);
$this->assertSame([], $viewResponse->getDataAttributes());
$viewResponse->setDataAttributes(['foo' => 'bar', 'baz' => 'quux']);
$this->assertSame(['foo' => 'bar', 'baz' => 'quux'], $viewResponse->getDataAttributes());
$viewResponse->addDataAttribute('fooBar', 'barFoo');
$this->assertSame(['foo' => 'bar', 'baz' => 'quux', 'fooBar' => 'barFoo'], $viewResponse->getDataAttributes());
}