xunit why basic inlinedata are not provided?

Question

I don't understand why my test returns :

System.InvalidOperationException : The test method expected 1 parameter value, but 0 parameter values were provided. Exception doesn't have a stacktrace

while my very basic test matches with examples found here and there :

 [Theory]
    [InlineData("‘")]
    [InlineData("«")]
    [InlineData("£")]
    [InlineData("€")]
    [InlineData("à")]
    [InlineData("é")]
    [InlineData("î")]
    [InlineData("ï")]
    public void IsAsciiComplient_Fail(string c)
    {
        //Act
        bool actual = c.IsAsciiComplient();

        //Test
        Assert.False(actual);
    }

I've also tried with char instead of string with no luck.

As there is no stack trace, how can i fixe it please? Any clue on what is going wrong?

Concomitance

ok this was a bug with resharper, i've updated resharper to v2017.3.1 , problem solved – Concomitance

Answer 1

Rebuild whole solution and try again.

Jaramillo

Answer 2

this was a bug with resharper, i updated resharper to v2017.3.1 then the problem was fixed.

Concomitance

Answer 3

I ran into this when I had two tests with the same name, one being a Theory and one being a Fact. Giving the Theory a unique name fixed the issue.

Stint

Answer 4

I ran into this issue with Visual Studio 17.3 Test Explorer (but not ReSharper) and xUnit when I had subclassed xUnit's TheoryAttribute because I wanted to provide custom skipping logic. Reverting to using [Theory] instead of my subclass resolved it for me. Thanks to B. Collins' answer for giving me an idea of what might be wrong.

Anesthetist