public function testSelector2xpath()
 {
     $parser = new CSSContentParser("<html><head><title>test</title></head><body><p>test</p></body></html>");
     $this->assertEquals("//div[@id='UserProfile']//label", $parser->selector2xpath("div#UserProfile label"));
     $this->assertEquals("//div", $parser->selector2xpath("div"));
     $this->assertEquals("//div[contains(@class,'test')]", $parser->selector2xpath("div.test"));
     $this->assertEquals("//*[@id='UserProfile']//div[contains(@class,'test')]//*[contains(@class,'other')]//div[@id='Item']", $parser->selector2xpath("#UserProfile div.test .other div#Item"));
 }