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c#winformsunit-testingtddbdd
Afraz Ali
Afraz Ali

Reputation: 2752

How to do BDD in a winforms app

I have a scenerio where I have to get some data from the DB and display it in a Grid View in a Win forms app. I have written a unit test for Presenter mocking my repository and view. The test checks that the presenter calls the GetData() method of the repository and then calls the Bind(data) method of the view.

I have also another Integration test for the repository that verifies that if there is some data in the DB it is returned by the repository.

Now comes the part of testing my view. I can think of no way to test my form and check if it indeed binds data to the Grid view but that is a separate question.

My question is that if I wanted to test the above scenario in BDD style then in Win forms there is no way for me to test that when I call a method of the presenter is the Grid View filled with the correct data. Does that mean that I can not do BDD on Win forms as I cannot verify the complete behaviour without mocking the view. If we mock the view then the entire concept of BDD is lost because one key player that is involved in the completion of the scenario is mocked and not real.

It is really confusing for me and don't know if anyone else out there has had similar question in their mind ever.

Upvotes: 2

Views: 1240

Answers (1)

Ben Smith
Ben Smith

Reputation: 20230

Yes it is possible to use BDD when creating a winform application.

TestStack have a framework called White. Quoting their website:

White is a framework for automating rich client applications based on Win32, WinForms, WPF, Silverlight and SWT (Java) platforms. It is .NET based and does not require the use of any proprietary scripting languages.

As you are using C# I also strongly recommend you use SpecFlow for your behaviour-driven development; it allows you to define feature and scenarios for your application in a technology agnostic format and creates boilerplate code to aid you in your BDD process.

Here is a good article which works through an example using Specflow for BDD and White for winform automation.

Upvotes: 1

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