Types of tests
- Unit testing
- Integration testing
- End-to-end testing
- It is used to test a single unit of code.
- Normally people say it is just a function to code but what actually matters is it is something that performs an isolated behavior.
- Behaviour means, what the code does, rather than how the code does it.
- Unlike unit testing where you test a single unit of code, In integration testing you test a collection of units.
- These collection of units work together to perform a certain functionality
- This testing takes the grouping of tests even further than
integration tests. - Basically they are used to validate the entire software from start to finish.
- Here all the layers of the application are involved by using which we verify the flows end-to-end.
- This is like a manual tester performing some action to test the outcome.
- It is a type of testing where you check the test cases after writing a collection of test cases.
- That is by intentionally breaking the production code and checking if your test cases fail.
- Because sometimes there can be an issue in your test case and with the help of mutation testing, we can find the root cause.
- Say you have a
fake implementationin your code and all the time you check if test cases work for fake implementation. Now intentionally break prod code if your tests still succeed there is a possibility there is an issue with yourtest cases.