Run/Group Tests by Category Attribute of NUnit in Visual Studio

Question

I am trying to use the Category Attribute of NUnit with my Visual Studio Profession 2015. However, the attribute doesn't seem to be categorizing the Tests in the Test Explorer.

[Test]
[Category("ValidLogins")]

I tried this as:

[Test, Category("Login")]

But even that didn't work. Any suggestion?

Answer 1

By default, Visual Studio's Test Explorer Window groups tests by Outcome which groups by Passed, Failed and Not Run. Many people miss the options for changing the grouping.

You can right-click on a group and select Group By ,

or there is a grouping dropdown in the upper left corner of the Test Explorer window.

Visual Studio groups tests by Class, Duration, Outcome, Traits or by Project. Traits map to NUnit's Categories.

Answer 2

We can create Playlist and organize the tests by group. Open Test Explorer, right click any test/or group of tests, add to Playlist, and save the Playlist to a file. then we can open one Playlist file and click to run it as a group.