Add a filter for namespaces

Describe the bug Our assembly has internal .NUnit classes in the same assembly as the actual code. To get proper code coverage reports I would like to exclude *.NUnit.* classes as they skew the metrics. I tried this with a -classfilters:-*.NUnit.* argument but this didn’t work.

Debugging the issue, I found that the class filter is called with ClassName and not FullName I misinterpreted that class name does not include namespace. I managed to sort of get what I needed by using -classfilters:-*Fixture, but that doesn’t catch all test classes.

To not break existing functionality, can we add an -namespacefilters argument?

I don’t mind contributing this functionality myself.

[manfred-brands]

Release 4.6.7 includes the fix.

Works properly with my original filter: -*.NUnit.*

[manfred-brands]

I guess adding a separate namespace filter is obsolete. But thanks for your effort! It is obsolete, but was a good exercise going through the code structure.

I only had suggested it based upon the one parser I was using and I didn’t want to break that functionality, not realising that it was the only parser behaving that way. Maybe you can update the documentation to say that the class filter works on the full class name including namespace.

You probably want to fix the broken parsers:

The LCovParser and GCovParser actually pass the fileName + extension to the class filter:

   string className = fileName.Substring(fileName.LastIndexOf(Path.DirectorySeparatorChar) + 1);

Use string className = Path.GetFileNameWithoutExtension(fileName); instead.