Do multiple categories lead to multiple tests, for nunit test fixtures?

Question

say that i have the following setup:

[TestFixture, Category("aCategory"), Category("anotherCategory")]
public class SomeClass{
   [Test]
   public void SomeTest()
   {
      //testing
   }
}

how many times will the SomeTest be run? once, with the results shown in both categories, or twice, once for each category?

Answer 1

In NUnit, categories act more like filters than a grouping mechanism.

When selecting the tests to run, you can include or exclude multiple categories, which will affect which tests are selected for a given run of the test suite.

You can assign multiple categories to a test class or method, but for a given run of the suite, each method will only be executed once.