Coverage report missing one of the projects

Hello 👋🏻

I thoroughly scanned open issues but couldn’t find an answer to my problem. It feels like I’m missing something obvious but can’t figure out what. 😩

I have the following project structure:

MiniRazor.Compiler.Tests
|  references
+--------------> MiniRazor.Compiler
                     |  references
                     +---------------> MiniRazor.Runtime

When running dotnet test, I get the following report:

Passed!  - Failed:     0, Passed:    13, Skipped:     0, Total:    13, Duration: 7 s - MiniRazor.Compiler.Tests.dll (net5.0)

Calculating coverage result...
  Generating report 'MiniRazor\MiniRazor.Compiler.Tests\coverage.net5.0.opencover.xml'

+-------------------+--------+--------+--------+
| Module            | Line   | Branch | Method |
+-------------------+--------+--------+--------+
| MiniRazor.Runtime | 89,47% | 66,66% | 92,85% |
+-------------------+--------+--------+--------+

+---------+--------+--------+--------+
|         | Line   | Branch | Method |
+---------+--------+--------+--------+
| Total   | 89,47% | 66,66% | 92,85% |
+---------+--------+--------+--------+
| Average | 89,47% | 66,66% | 92,85% |
+---------+--------+--------+--------+

As you can see, for some reason, it only shows coverage for MiniRazor.Runtime, but not MiniRazor.Compiler. The projects are not special in any particular way.

Also, I was able to get Coverlet working perfectly well on numerous other projects, this is the only one that’s giving me issues.

For reproduction purposes, here’s the project: https://github.com/Tyrrrz/MiniRazor/tree/cc2c70bbbaf9ef43098fea40bb19993c6e454fd4 (note the commit hash, I’ve since made a workaround that fixes coverage, see next comment) Just clone it and run dotnet test. Here’s the latest build log from CI: https://github.com/Tyrrrz/MiniRazor/runs/2170799134?check_suite_focus=true

Any help is greatly appreciated 🙏🏻

[daveMueller]

OK thanks I’ll look into this again. Maybe coverlet really has an issue detecting embedded .pdb in some edge cases.

[daveMueller]

So I just took a look into this. Seems that Fody is somehow changing the embedded pdb. With Fody we can’t read the debug data. System.Reflection.PortableExecutable.PEReader can’t read the path of the pdb.

Without Fody it isn’t a problem at all.

I played around with it a bit and it seems that changing debug type to full <DebugType>full</DebugType> helped if this is an option.