CODEWITHSUNDEEP
c#.net-corenunit
dhochee
dhochee

Reputation: 411

NUnit with TestCaseSource discovers extra unsourced Test in VS2019

I have an NUnit test in VS2019 using .Net Core 3.1 with a TestCaseSource that supplies a list of 3-Tuples.

It works as expected and the cases I wish to test are discovered and run.

However, the Test Explorer shows the same Test method as a test without source. The result is the "test" is skipped and the results for the group show as inconclusive. Here are the code and Test Explorer image:

public static IEnumerable<(int, int, int)[]> TestInput
        {
            get
            {
                yield return new[] { 
                    (0, 2, 3), 
                    (0, 1, 7), 
...


[Test]
[TestCaseSource(nameof(TestInput))]
public void CalcTotalTime_Given_known_valid_input_Then_returns_expected_result((int,int,int)[] input)
{
...

enter image description here

Since this is just a learning project the code under test is in the test project, so there is only one project and it targets .NET Core 3.1.

The installed NuGet packages are:

Upvotes: 0

Views: 525

Answers (1)

Cem.S
Cem.S

Reputation: 1111

I was able to reproduce it and it seems like a bug to me with the NUnit3TestAdapter. Similar issues were found in the past: https://github.com/nunit/nunit3-vs-adapter/issues/559

Depending on what you're trying to achieve, you can consider writing your unit test like this:

[TestCase(0,2,3)]
[TestCase(1,2,3)]
public void CalcTotalTime_Given_known_valid_input_Then_returns_expected_result(int a, int b, int c)
    {
    }

But as mentioned in the comment, the behavior is not identical to the original code.

Upvotes: 0

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