Description

When trying to assert that an interface type has internal access, the following assertion message is thrown:

Expected expression to be Internal, but it is InvalidForCSharp.

Complete minimal example reproducing the issue

Assuming the following definition exists in the scope of the test:

internal interface ITest {}

The following demonstrates the problem:

typeof(ITest).Should().HaveAccessModifier(CSharpAccessModifier.Internal);

Expected behavior:

The assertion should succeed.

Actual behavior:

The following assertion message is thrown:

Expected typeof(ITest) ITest to be Internal, but it is InvalidForCSharp.

Versions

• Fluent Assertions version: 6.2.0
• Compiled against .NET 5.0
• Run against .NET 6.0