How do I set up a testing environment for MVVM?

How do I set up a testing environment for MVVM?

To set up a testing environment for MVVM, you'll need a few tools like a testing framework (e.g., NUnit, xUnit) and a mocking library (e.g., Moq). Do you have a specific framework in mind?

I'm using WPF with MVVM Light. What should I do next?

Great choice! First, ensure you have MVVM Light installed. Then, create a test project in your solution and reference your main project. Would you like guidance on writing your first test?

Yes, please! How do I write a unit test for a ViewModel?

To write a unit test for a ViewModel, you can create a test method that initializes the ViewModel, sets up any necessary dependencies, and then asserts the expected behavior. Would you like a code example?

That would be helpful, thank you!

Here's a simple example:

[Test]
public void TestViewModelProperty()
{
    var viewModel = new MyViewModel();
    viewModel.MyProperty = "Test";
    Assert.AreEqual("Test", viewModel.MyProperty);
}

This tests that setting a property works as expected.