Cannot have a PropertyAttribute named "Category"

[iamdmitrij]

Using [Property("Category", "Test")] on a test, does not work as expected with property name "Category".

Property name with value "Category" is omitted from Visual Studio Test Explorer:

[Test]
[Property("Category", "Invisible")]
public void Test()
{
    Assert.Pass();
}

However, if property key is other than Category, tests [Property("FakeCategory", "Visible")] - it works perfectly fine.

[Test]
[Property("FakeCategory", "Visible")]
public void Test()
{
    Assert.Pass();
}

This is quite relevant if there are multiple test projects in solution using different frameworks - MSTest, xUnit, NUnit. In all mentioned frameworks except NUnit tagging with name and value where property name=Category works fine.

NUnit version: 3.13.2
IDE: Visual Studio 2022 17.0.1

[mikkelbu]

@iamdmitrij I guess the problem is that NUnit has an explicit CategoryAttribute - see e.g. https://docs.nunit.org/articles/nunit/writing-tests/attributes/category.html - and as far as I can remember this attribute is actually just implemented using a property named Category.

So I guess the NUnit adapter has special handling of this Categories (a small test confirm this) - I guess it was made as part of #446. I'm unsure if one can configure this behaviour in the adapter, but as far as I can tell it is not possible to change. @OsirisTerje can you prodvide some more information - and should this be moved to the adapter project?