//pass
[Fact]
public void Test_ZStringJoin_Enum()
{
    var inputs = new[]
    {
        SearchOption.AllDirectories,
        SearchOption.TopDirectoryOnly,
    };

    var result = ZString.Join(" or ", inputs);

    result.ShouldBe($"{nameof(SearchOption.AllDirectories)} or {nameof(SearchOption.TopDirectoryOnly)}");
}

//pass
[Fact]
public void Test_ZStringJoin_FlagsEnum()
{
    var inputs = new[]
    {
        FileOptions.None,
        FileOptions.RandomAccess,
    };

    var result = ZString.Join(" or ", inputs);

    result.ShouldBe($"{nameof(FileOptions.None)} or {nameof(FileOptions.RandomAccess)}");
}

//FAIL!!
[Fact]
public void Test_ZStringJoin_HttpStatusCode()
{
    var inputs = new[]
    {
        HttpStatusCode.OK,
        HttpStatusCode.Created,
    };

    var result = ZString.Join(" or ", inputs);

    result.ShouldBe($"{nameof(HttpStatusCode.OK)} or {nameof(HttpStatusCode.Created)}");
}

/*
System.TypeInitializationException : The type initializer for 'Cysharp.Text.EnumUtil`1' threw an exception.
  ---- System.ArgumentException : An item with the same key has already been added. Key: Ambiguous
StackTrace: 
  EnumUtil`1.TryFormatUtf16(T value, Span`1 dest, Int32& written, ReadOnlySpan`1 _)
  Utf16ValueStringBuilder.Append[T](T value)
  Utf16ValueStringBuilder.AppendJoinInternal[T](ReadOnlySpan`1 separator, ReadOnlySpan`1 values)
  ZString.JoinInternal[T](ReadOnlySpan`1 separator, ReadOnlySpan`1 values)
  ZString.Join[T](String separator, T[] values)
  UnitTest1.Test_ZStringJoin_HttpStatusCode()
  ----- Inner Stack Trace -----
  Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
  Dictionary`2.Add(TKey key, TValue value)
  EnumUtil`1.cctor()
*/