| AbstractVisitorTestCase | Base testcase class for all Guzzle testcases. |
| BodyVisitorTest | Base testcase class for all Guzzle testcases. |
| HeaderVisitorTest | Base testcase class for all Guzzle testcases. |
| JsonVisitorTest | Base testcase class for all Guzzle testcases. |
| PostFieldVisitorTest | Base testcase class for all Guzzle testcases. |
| PostFileVisitorTest | Base testcase class for all Guzzle testcases. |
| QueryVisitorTest | Base testcase class for all Guzzle testcases. |
| ResponseBodyVisitorTest | Base testcase class for all Guzzle testcases. |
| XmlVisitorTest | Base testcase class for all Guzzle testcases. |