/**
* @depends testInterface
* @return null
*/
public function testIsCssEnableDisableCss()
{
$this->assertTrue($this->htmlDoc->isCssEnabled());
$this->assertSame($this->htmlDoc, $this->htmlDoc->disableCss());
$this->assertFalse($this->htmlDoc->isCssEnabled());
$this->assertSame($this->htmlDoc, $this->htmlDoc->enableCss());
$this->assertTrue($this->htmlDoc->isCssEnabled());
}