![]() Create a projectĬreate a new project and go to the app’s build gradle file. We are going to create a new project and then run our first unit test. Drink some water or coffee and come back. I think now is an excellent time to take a deep breath and read everything one more time. Therefore, it is recommended to do an instrumented test, only if you must test against the behavior of a real device. Instrumented tests provide more fidelity than local tests, but it is slower in execution. ![]() Instrumented tests: They will run only on physical or emulator devices. They are faster in execution, but provides less fidelity. They don’t require either an emulator or physical android device to run. ![]() Local tests: The reason they are known as local tests is that they will be running on your local machine. Running unit tests after every build helps you to quickly catch and fix software regressions introduced by code changes to your app.įor testing android apps, there are two types of automated test units available. By creating and running unit tests against your code, you can easily verify that the logic of individual units is correct. Unit tests are the fundamental tests in your app testing strategy. Your unit test must include all the possible interactions with the unit, including the standard interactions, invalid inputs, and cases where resources aren’t available. Writing test cases and testing those units are called unit testing. That is the beauty of the TDD architecture. Imagine you write a test case for a method that doesn’t exist. If you are not familiar with this approach, it will be very confusing and incomprehensible. The TDD approach is an excellent strategy to solve this issue.Īs the image suggests, you will write the test case first before you write the actual function. As more and more features get added, testing will be difficult and more time consuming than ever. ![]() The problem with that approach is that we can overlook a few edge cases, and we will be able to run the code only in a running app. Firstly, we will give it a thought before working on it to guarantee that we are not missing any edge cases. ![]() Imagine you are working on a new feature for your app. ![]()
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