![]() ![]() Unit testing is often combined with mocking. ![]() They are used to set up and clean up the environment for each test within a group and thus avoid code duplication. Fixture classes help organize shared resources for multiple tests. Suites combine tests with common functionality (for example, when performing different cases for the same function). It's useful to group test cases when they are logically connected or use the same data. Organizing tests in a way that the order in which you run them doesn't affect the results. The generalized structure of a single test looks like this:ģ - checking the results (assertions block)Ĭreating tests for all publicly exposed functions, including class constructors and operators.Ĭovering all code paths and checking both trivial and edge cases, including those with incorrect input data (see negative testing).Īssuring that each test works independently and does't prevent other tests from execution. Running, debugging, or even just reading tests can give a lot of information about how the original code works, so you can use them as implicit documentation.Ī single unit test is a method that checks some specific functionality and has clear pass/fail criteria. When you have a suite of unit tests, you can run it iteratively to ensure that everything keeps working correctly every time you add new functionality or introduce changes. A unit here is the smallest part of code that can be tested in isolation, for example, a free function or a class method.Īs code's testability depends on its design, unit tests facilitate breaking it into specialized easy-to-test pieces. Unit testing aims to check individual units of your source code separately. The Unit Testing in CLion part will guide you through the process of including these frameworks into your project and describe the instruments that CLion provides to help you work with unit testing. This tutorial gives an overview of the unit testing approach and discusses four frameworks supported by CLion: Google Test, Boost.Test, Catch2, and Doctest.
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