Exception when using WithStrictOrderingFor on enums #2927
Description
Description
While testing upgrade from 6.X to 8.0.rc2 I faced an exception when using BeEquivalentTo with WithStrictOrderingFor on an enum.
Reproduction Steps
public class UnitTest1
{
public enum TestEnum
{
Undefined,
Active,
Manual
}
[Fact]
public void Test1()
{
var existing = new List<TestEnum> { TestEnum.Active, TestEnum.Manual };
existing.Should().BeEquivalentTo([TestEnum.Active, TestEnum.Manual],
options => options.WithStrictOrderingFor(v => v));
}
}Expected behavior
Test succeed.
Actual behavior
System.InvalidOperationException
Sequence contains no elements
at System.Linq.ThrowHelper.ThrowNoElementsException()
at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
at FluentAssertions.Common.ExpressionExtensions.GetMemberPath[TDeclaringType,TPropertyType](Expression`1 expression)
at FluentAssertions.Equivalency.EquivalencyOptions`1.WithStrictOrderingFor(Expression`1 expression)
at TestProject1.UnitTest1.<>c.<Test1>b__1_0(EquivalencyOptions`1 options) in C:\Lukas\Projekte\github-lg2de\TestProject1\TestProject1\UnitTest1.cs:line 20
at FluentAssertions.Collections.GenericCollectionAssertions`3.BeEquivalentTo[TExpectation](IEnumerable`1 expectation, Func`2 config, String because, Object[] becauseArgs)
at TestProject1.UnitTest1.Test1() in C:\Lukas\Projekte\github-lg2de\TestProject1\TestProject1\UnitTest1.cs:line 19
at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
Regression?
The problem starts when updating from 7.0.0 to 8.0.0-rc2 and disappears on downgrading to 7.0.0-apha.5.
Known Workarounds
N/A
Configuration
net8
Other information
No response
Are you willing to help with a pull-request?
Yes, please assign this issue to me.