def test_css_detect(self): self.assertTrue(CSSReader.is_file( io.BytesIO('body { color: white }'.encode('utf-16le')) )) self.assertFalse(CSSReader.is_file( io.BytesIO('hello world!'.encode('utf-16le')) )) self.assertFalse(CSSReader.is_file( io.BytesIO(b'<html><body>hello') )) self.assertTrue(CSSReader.is_file( io.BytesIO(b'h1 { background-color: red }') )) self.assertTrue(CSSReader.is_file( io.BytesIO(b'@import url.css;') )) self.assertTrue( CSSReader.is_url(URLInfo.parse('example.com/index.css')) ) self.assertFalse( CSSReader.is_url(URLInfo.parse('example.com/image.jpg')) ) self.assertTrue( CSSReader.is_request(Request.new('example.com/index.css')) ) self.assertFalse( CSSReader.is_request(Request.new('example.com/image.jpg')) ) response = Response('HTTP/1.0', '200', 'OK') response.fields['Content-Type'] = 'text/css' self.assertTrue(CSSReader.is_response(response)) response = Response('HTTP/1.0', '200', 'OK') response.fields['Content-Type'] = 'image/png' self.assertFalse(CSSReader.is_response(response))