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Unit testing is an important aspect of software development, and it’s no different when it comes to developing mobile apps with Xamarin. Unit testing is a way to ensure that individual units of code are working as expected, and it helps to catch bugs and other issues early on in the development process.
In Xamarin, unit testing is typically done using a testing framework called NUnit. NUnit is a popular testing framework for .NET, and it is well-suited for testing Xamarin apps. With NUnit, developers can write unit tests in C# and test the functionality of their Xamarin app in an automated way.
To write unit tests in Xamarin, developers first need to create a test project. This is a separate project within the solution that will contain all of the unit tests. The test project should be set up to reference the project that contains the code being tested.
Once the test project is set up, developers can begin writing unit tests. A unit test is a method that tests a specific piece of code. The test method should typically set up any necessary conditions, execute the code being tested, and then check to see if the expected outcome was achieved. If the outcome is not as expected, the test will fail.
Unit tests can be run automatically, and the results can be viewed in a test runner. A test runner is a tool that is used to execute unit tests and view the results. In Xamarin, the NUnit test runner is commonly used to run and view the results of unit tests.
In addition to unit testing, Xamarin also provides the ability to perform integration testing. Integration testing is a way to test how different units of code work together. This can be especially useful for testing how a Xamarin app interacts with external services or APIs.
In summary, Unit testing is an important aspect of software development that allows developers to ensure that their code works as expected. Xamarin allows developers to perform unit testing using a framework called NUnit. To write unit tests, developers need to create a test project, which will contain all of the unit tests. Unit tests can be run automatically and the results can be viewed in a test runner like NUnit. Xamarin also provides the ability to perform integration testing, which allows developers to test how different units of code work together.
Cookbook – Xamarin for Beginners – Chapter 36 : Unit Testing
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