Contents
Why should I test my code?
Developers write unit tests for their code to make sure that the code works correctly. This helps to detect and protect against bugs in the future. Sometimes developers write unit tests first, then write the code. This approach is also known as test-driven development (TDD).
Should you test view models?
Testing the view model. One of the main goals of MVVM is to minimize the complexity of activities and fragments. As a result, most of the logic lives inside the view model. Therefore, it’s especially important to test our view model thoroughly.
Why do I have trouble testing my own code?
Having difficulty testing their own or someone else’s code, developers often think that their struggles are caused by a lack of some fundamental testing knowledge or secret unit testing techniques.
How are functional code and test code tested?
By construction, functional code and test code are tested one against the other. One problem remains: the case of common mode bugs, when a bug in functional code is hidden by a bug in test code. TDD is not immune to this effect. This is why testing is usually performed at multiple levels by different people in order to decrease this probability.
Which is the best way to test a test?
In brief, We can evaluate our test (e.g. TestA) by testing TestA can find the difference between the code and its mutation codes (very similar but slightly different code with original code). If TestA cannot find the difference between the code and its mutation codes, It means that the TestA has too rough regulations to test the original code.
Why is it difficult to write unit tests?
However, it can sometimes be quite difficult to write a good unit test for a particular piece of code. Having difficulty testing their own or someone else’s code, developers often think that their struggles are caused by a lack of some fundamental testing knowledge or secret unit testing techniques.