Coverage not showing correct value

[jgheewala]

Hi,

I have a mock package with 15 mock_*_test.go files. In one of the test file I add following

func TestMain(m *testing.M) { coverage.Run(m, 90) }

However when I am running the test it shows FAIL even when coverage is at 94.2%

`❯ go test -cover $(go list ./... | grep pkg/mock)
PASS
coverage: 94.2% of statements

FAIL Coverage threshold not met 90.0 >= 32.2 for tracing/pkg/mock

FAIL tracing/pkg/mock 0.399s
FAIL`

[gkampitakis]

I am suspecting it has to do something with golang/go#65570, can you try with

GOEXPERIMENT=nocoverageredesign

Also I am not sure how accurate this library might be in general. It uses testing.Coverage which states on the docs

// It is not a replacement for the reports generated by 'go test -cover' and
// 'go tool cover'.

[jgheewala]

adding GOEXPERIMENT=nocoverageredesign worked. For me the problem is we have taken task to increase the unit test coverage across all our services and hence we would be doing one package at a time.. It will be too much of work for writing a makefile which uses go tool cover

[gkampitakis]

Oh I see. Hopefully then this package will help you.