Unable to get code coverage for a nunit built dll

[shrey393]

This is the command i am using -
AltCover.exe Runner --recorderDirectory="Path" --workingDirectory="Path" -x "Path\nunit-console.exe" -- "nunit built dll"

I get the nunit logs saying that the Tests pass, but after that it says this - "Getting results... A total of 0 visits recorded"
By default it should instrument all the dlls in the "Path" location.
I also have the recorder dll in the "Path" location.
Am i doing something wrong? Can someone please help me on this?

[SteveGilham]

Let's start from the beginning. What did the instrumentation pass look like?

From the AltCover build when the unit tests are run under AltCover

C:\Users\github\Documents\Github\altcover\_Binaries\AltCover\Release+AnyCPU\net472\AltCover.exe -o ./__RecorderTest2WithAltCoverRunner -s "\.DataCollector" -s Sample -s Microsoft -s testhost -t "System\." -t "Sample3\.Class2" -t Microsoft -t ICSharpCode -t <Start -t UnitTestStub -t SolutionRoot -m WaitForExitCustom -a EntryPoint --sn "C:\Users\github\Documents\Github\altcover\Build\Infrastructure.snk" --reportFormat OpenCover -r "C:\Users\github\Documents\Github\altcover\_Reports\RecorderTest2WithAltCoverRunner.xml" --single --localSource
C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20> "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover\Release+AnyCPU\net472\AltCover.exe" -o ./__RecorderTest2WithAltCoverRunner -s "\.DataCollector" -s Sample -s Microsoft -s testhost -t "System\." -t "Sample3\.Class2" -t Microsoft -t ICSharpCode -t <Start -t UnitTestStub -t SolutionRoot -m WaitForExitCustom -a EntryPoint --sn "C:\Users\github\Documents\Github\altcover\Build\Infrastructure.snk" --reportFormat OpenCover -r "C:\Users\github\Documents\Github\altcover\_Reports\RecorderTest2WithAltCoverRunner.xml" --single --localSource (In: false, Out: false, Err: false)
Creating folder C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\
Instrumenting files from C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\
Writing files to C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\
   => C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\AltCover.Recorder.dll
   => C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\AltCover.Recorder.Tests.dll

Coverage Report: C:\Users\github\Documents\Github\altcover\_Reports\RecorderTest2WithAltCoverRunner.xml


    C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.dll
                <=  AltCover.Recorder, Version=8.6.0.0, Culture=neutral, PublicKeyToken=c02b1a9f5b7cade8
    C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.Tests.dll
                <=  AltCover.Recorder.Tests, Version=8.6.0.0, Culture=neutral, PublicKeyToken=c02b1a9f5b7cade8
Finished (Success) 'AltCover' in 00:00:01.8189023

we see the test assembly and the assembly under test marked in their starting locations with => and the instrumented locations marked with <= in the output directory, The test step then proceeds

C:\Users\github\Documents\Github\altcover\_Binaries\AltCover\Release+AnyCPU\net472\AltCover.exe Runner -r "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\./__RecorderTest2WithAltCoverRunner" -x "C:\Users\github\Documents\Github\altcover\packages\nunit.consolerunner\3.17.0\tools\nunit3-console.exe" -- --noheader --work=. --result=./_Reports/RecorderTest2WithAltCoverRunnerReport.xml "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.Tests.dll"
.> "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover\Release+AnyCPU\net472\AltCover.exe" Runner -r "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\./__RecorderTest2WithAltCoverRunner" -x "C:\Users\github\Documents\Github\altcover\packages\nunit.consolerunner\3.17.0\tools\nunit3-console.exe" -- --noheader --work=. --result=./_Reports/RecorderTest2WithAltCoverRunnerReport.xml "C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.Tests.dll" (In: false, Out: false, Err: false)
Beginning run...
Command line : '"C:\Users\github\Documents\Github\altcover\packages\nunit.consolerunner\3.17.0\tools\nunit3-console.exe" --noheader --work=. --result=./_Reports/RecorderTest2WithAltCoverRunnerReport.xml C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.Tests.dll'
Runtime Environment
   OS Version: Microsoft Windows NT 6.2.9200.0
   Runtime: .NET Framework CLR v4.0.30319.42000
Test Files
    C:\Users\github\Documents\Github\altcover\_Binaries\AltCover.Recorder.Tests\Debug+AnyCPU\net20\__RecorderTest2WithAltCoverRunner\AltCover.Recorder.Tests.dll
Run Settings
    DisposeRunners: True
    WorkDirectory: .
    ImageRuntimeVersion: 2.0.50727
    ImageRequiresX86: False
    ImageRequiresDefaultAppDomainAssemblyResolver: False
    TargetRuntimeFramework: net-2.0
    NumberOfTestWorkers: 12
Test Run Summary
  Overall result: Passed
  Test Count: 42, Passed: 42, Failed: 0, Warnings: 0, Inconclusive: 0, Skipped: 0
  Start time: 2024-03-10 11:20:59Z
    End time: 2024-03-10 11:21:02Z
    Duration: 2.556 seconds
Results (nunit3) saved as ./_Reports/RecorderTest2WithAltCoverRunnerReport.xml
Getting results...
... C:\Users\github\Documents\Github\altcover\_Reports\RecorderTest2WithAltCoverRunner.xml.0.acv (19,774b)
1,616 visits recorded in 00:00:00.0220912 (73,151 visits/sec)
A total of 1,616 visits recorded
Coverage statistics flushing took 0.08 seconds
Visited Classes 173 of 174 (99.43)
Visited Methods 327 of 328 (99.7)
Visited Points 1418 of 1446 (98.06)
Visited Branches 185 of 490 (37.76)
Maximum CRAP score 67.38
==== Alternative Results (includes all methods including those without corresponding source) ====
Alternative Visited Classes 187 of 188 (99.47)
Alternative Visited Methods 390 of 393 (99.24)
Alternative maximum CRAP score 67.38
Finished (Success) 'AltCover' in 00:00:03.2503053

where the NUnit command line looks like

.> AltCover.exe Runner -r "OutputDirectory" -x "nuget\path\nunit3-console.exe" -- --noheader --work=. -- "OutputDirectory\...Tests.dll"

where NUnit is given the instrumented unit test assembly to execute (at the location shown in the <= line from the instrumentation), and AltCover is given that same folder in the -r input (so that the after-test processing can find read the recorder assembly to find where the coverage report file is, and what format it is in).

How does this compare with what you are seeing?

[shrey393]

Okay so First we Nunit Test project (Project T) which tests the functionality of another project(Project C). I'm trying to instrument the using AltCover.exe -i "path to code of (Porject T)" in repo, I'm pasting the _Intrumented folder that's generated to a location in VM as to execute it requires several dependency. In the VM I'm running this command -
AltCover.exe Runner --recorderDirectory="Path_Instrumented" --workingDirectory="Path" -x "Path\nunit-console.exe" -- "nunit built dll"
Here the Path contains the build/dlls of (Project T and C).
All the nunit tests pass but im not getting coverage report.