C# 9 record types show as a miss

[rubberduck203]

As you can see on line 32, my tests are running the PathCount constructor (and are elsewhere calling both getters), but is being registered as a miss.

https://codecov.io/gh/rubberduck203/GitNStats/src/116f2b93ef887097a8c0aac8b2ef7978b2905bb1/src/gitnstats.core/Analysis.cs

Version Info

• Target Framework: .net5.0
• coverlet.collector: 1.3.0
• coverlet.msbuild: 2.9.0

If I have some time tomorrow, I'll try to create an MVCE.

[tonerdo]

Looks like we should be looking for patterns that suggest a record declaration and ignoring that automatically. Haven't had a chance to test Coverlet with .NET 5, but a small repro project will be appreciated

[rubberduck203]

This is as minimal as I could think to make it.

coverlet-records-repro.zip

The unit test creates an instance of the record and accesses its property.

This is the console output

$ dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=\"opencover,lcov\"
  Determining projects to restore...
  Restored /Users/rubberduck/src/coverlet-records-repro/src/repro.csproj (in 77 ms).
  Restored /Users/rubberduck/src/coverlet-records-repro/tests/tests.csproj (in 352 ms).
  repro -> /Users/rubberduck/src/coverlet-records-repro/src/bin/Debug/net5.0/repro.dll
  tests -> /Users/rubberduck/src/coverlet-records-repro/tests/bin/Debug/net5.0/tests.dll
Test run for /Users/rubberduck/src/coverlet-records-repro/tests/bin/Debug/net5.0/tests.dll (.NETCoreApp,Version=v5.0)
Microsoft (R) Test Execution Command Line Tool Version 16.8.0
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.

Passed!  - Failed:     0, Passed:     1, Skipped:     0, Total:     1, Duration: 3 ms - /Users/rubberduck/src/coverlet-records-repro/tests/bin/Debug/net5.0/tests.dll (net5.0)

Calculating coverage result...
  Generating report '/Users/rubberduck/src/coverlet-records-repro/tests/coverage.opencover.xml'
  Generating report '/Users/rubberduck/src/coverlet-records-repro/tests/coverage.info'

+--------+------+--------+--------+
| Module | Line | Branch | Method |
+--------+------+--------+--------+
| repro  | 0%   | 100%   | 0%     |
+--------+------+--------+--------+

+---------+------+--------+--------+
|         | Line | Branch | Method |
+---------+------+--------+--------+
| Total   | 0%   | 100%   | 0%     |
+---------+------+--------+--------+
| Average | 0%   | 100%   | 0%     |
+---------+------+--------+--------+

[MarcoRossignoli]

@rubberduck203 seem that the bug is solved in master(next 3.0.0 version), I did some test with our updated nightly

Can you try by yourself with nightly and confirm?

https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/ConsumeNightlyBuild.md#consume-nightly-build version 3.0.0-preview.18.g183cbed8a6