How to get an overall coverage value from go test -cover? [duplicate]

Question

Using the -cover option of go test, eg

go test ./... -covermode=atomic -coverprofile coverage.out

coverage.out contains lots of output for each file, but I want a single number for overall coverage (which can be used to pass/fail coverage).

I found a reasonable (although erroneous!) script solution in this article:

cat coverage.out | \
awk 'BEGIN {cov=0; stat=0;} \
    $3!="" { cov+=($3==1?$2:0); stat+=$2; } \
    END {printf("Total coverage: %.2f%% of statements\n", (cov/stat)*100);}'

but is there a non-script, go way to do this?

Answer 1

We us gotestsum for this purpose. It is a replacement for go test with additional features, like outputting in JUnit XML format.

https://github.com/gotestyourself/gotestsum

The disadvantage of using a third party tool like this is, that your developers and CI need to have it installed.