How to run only one xUnit test in linqpad

pf4711

Hi -

Is there a way to only run one test in linqpad instead of all? Does not seem like dotnet test --filter can work in linqpad. Wondering if there is an attribute or something that can be used instead of commenting out tests. Thanks.

JoeAlbahari

If the test is defined at the top level, you can highlight the individual method and press F5 to run just that method:

#load "xunit"

void Main()
{
    RunTests(); 
}

[Fact] public void Test_ShouldSucceed() => Assert.True (1 + 1 == 2);
[Fact] public void Test_ShouldFail()    => Assert.True (1 + 1 == 3);

JoeAlbahari

Another solution is to open the xunit query and modify the RunTests method as follows:

/// <summary>Runs all xunit tests and displays the results. To run a single test, call RunTest() instead. This method is editable in the 'xunit' query.</summary>
static TestResultSummary[] RunTests (bool quietly = false, bool reportFailuresOnly = false, Func<Xunit.Abstractions.ITestCase, bool> filter = null)
{
    using var runner = Xunit.Runners.AssemblyRunner.WithoutAppDomain (typeof (UserQuery).Assembly.Location);
    if (filter != null) runner.TestCaseFilter = filter;
    ...

Also add the following method:

static TestResultSummary[] RunTest (string methodName, bool quietly = false, bool reportFailuresOnly = false)
    => RunTests (quietly, reportFailuresOnly, c => c.TestMethod.Method.Name == methodName);