Skip to main content

Unit Testing of Compiler Diagnostic Fixes

NuGet Package​

dotnet add package roslynator.testing.csharp.xunit

or

dotnet add package roslynator.testing.csharp.mstest

Example: Test Compiler Diagnostic Fix​

using Roslynator.Testing.CSharp.Xunit;
using Xunit;

public class ModifierIsNotValidForThisItemTests : XunitCompilerDiagnosticFixVerifier<RemoveModifierCodeFixProvider>
{
    public override string DiagnosticId { get; } = "CS0106";

    [Fact]
    public async Task Test()
    {
        await VerifyFixAsync(
            source: @"
struct S
{
    public virtual string M() => null;
}
",
            expectedSource: @"
struct S
{
    public string M() => null;
}
");
    }
}