gistfile1.cs

using System.Collections;

namespace TestOfCategories;

public class MyTestCase(string name, int someNumber, string someString)
{
	public int SomeNumber { get; } = someNumber;
	public string SomeString { get; } = someString;

	public string DataName { get; } = name;
}

public class MyTestCaseData : TestCaseData
{
	public MyTestCaseData(MyTestCase testCase) : base(testCase)
	{
		SetName($"{testCase.DataName} {testCase.SomeNumber} {testCase.SomeString} ");
		SetCategory(testCase.DataName);
	}
}

public class SimpleTestData_FirstDataSource
{
	public static IEnumerable GetTestCases
	{
		get
		{
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 1", 1, "FIREFOX"));
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 2", 2, "FIREFOX"));
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 3", 3, "FIREFOX"));

			//THIS IS THE ONLY SOLUTION => TO PUT CATEGORY AGAIN IN THE NAME:
			//yield return new MyTestCaseData(new MyTestCase("FIREFOX - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 1", 1, "FIREFOX"));
			//yield return new MyTestCaseData(new MyTestCase("FIREFOX - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 2", 2, "FIREFOX"));
			//yield return new MyTestCaseData(new MyTestCase("FIREFOX - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 3", 3, "FIREFOX"));
		}
	}
}

public class SimpleTestData_SecondDataSource
{
	public static IEnumerable GetTestCases
	{
		get
		{
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 1", 1, "CHROME"));
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 2", 2, "CHROME"));
			yield return new MyTestCaseData(new MyTestCase("SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 3", 3, "CHROME"));

			//THIS IS THE ONLY SOLUTION => TO PUT CATEGORY AGAIN IN THE NAME:
			//yield return new MyTestCaseData(new MyTestCase("CHROME - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 1", 1, "CHROME"));
			//yield return new MyTestCaseData(new MyTestCase("CHROME - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 2", 2, "CHROME"));
			//yield return new MyTestCaseData(new MyTestCase("CHROME - SAME NAME OF DATA CASE AS IN OTHER SOURCE - DONT CHANGE THIS - 3", 3, "CHROME"));
		}
	}
}

public class Tests
{
	[Test]
	[TestCaseSource(typeof(SimpleTestData_FirstDataSource), Category ="FIREFOX")]
	[TestCaseSource(typeof(SimpleTestData_SecondDataSource), Category ="CHROME")]
	public void SimpleTest(MyTestCase data)
	{
		Console.WriteLine(data);
	}
}