Different tests have different tasks and goals. For example, the tasks of unit testing and system testing are often very different. Different frameworks support different testing activities, so there is no best, only appropriate. Generally speaking, a good framework should have the following characteristics. 1. Provide sufficient logs for debugging. Some UI testing frameworks have a screenshot function that can capture the appearance of the UI when the test is running. 2. Ability to organize test cases and allow test cases at different granularities and standards. For example, allowing testers to group test cases into groups allows testing in units of test case sets. Then the tester can divide the test cases into BVT use case sets and functional use case sets for use in different occasions. 3. Allow testers to focus on writing test cases rather than integrating with the framework. For example, CppUnitLite is better than CppUnit (the author of these two frameworks is the same person, who developed CppUnitLite to overcome some of the shortcomings of CppUnit), because it is very simple to write test cases with CppUnitLite, but you need to write more code with CppUnit. 4. Provide sufficient debugging support. For example, setting breakpoints or pauses allows the tester to observe the status of the test as it runs.