xUnit1012 - Xunit — ContextQMD

Cause

This rule is trigged by having a null value in your [InlineData] for a value type parameter.

Value types are incompatible with null values.

To fix a violation of this rule, you may:

csharp

using Xunit;

public class xUnit1012
{
    [Theory]
    [InlineData(null)]
    public void TestMethod(int _) { }
}

If nullable reference types are enabled, this also violates:

csharp

using Xunit;

public class xUnit1012
{
    [Theory]
    [InlineData(null)]
    public void TestMethod(object _) { }
}

csharp

using Xunit;

public class xUnit1012
{
    [Theory]
    [InlineData(42)]
    public void TestMethod(int _) { }
}

csharp

using Xunit;

public class xUnit1012
{
    [Theory]
    [InlineData(null)]
    public void TestMethod(int? _) { }
}

If nullable reference types are enabled, parameters must be decorated to receive null values:

csharp

using Xunit;

public class xUnit1012
{
    [Theory]
    [InlineData(null)]
    public void TestMethod(object? _) { }
}