TRX writer emits Min as outcome instead of Error in .NET 7.0

[aelij]

Description

When using dotnet test -l trx in .NET 7.0, the TRX file writes an unexpected enum value (due to an undocumented change in .NET 7.0's Enum.ToString()).

Steps to reproduce

See above

Expected behavior

<RunInfo outcome="Error" ...

Actual behavior

<RunInfo outcome="Min" ...

Environment

> dotnet --info
.NET SDK:
 Version:   7.0.101
 Commit:    bb24aafa11

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22621
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\7.0.101\

Host:
  Version:      7.0.1
  Architecture: x64
  Commit:       97203d38ba

.NET SDKs installed:
  7.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

[Evangelink]

Hi @aelij, thank you for the bug report. We will investigate it soon and get back to you.

[aelij]

Note that according to Enum.ToString docs

If multiple enumeration members have the same underlying value and you attempt to retrieve the string representation of an enumeration member's name based on its underlying value, your code should not make any assumptions about which name the method will return