Running into "flag provided but not defined: -coverprofile"

[ShettyA]

On running "gocov test ", I run into following errors.

flag provided but not defined: -coverprofile
Usage of /var/folders/zz/4ffrsh1s5vb18wn558p9bw4w001tpw/T/go-build604129205/_/t:
-test.bench="": regular expression to select benchmarks to run
-test.benchmem=false: print memory allocations for benchmarks
-test.benchtime=1s: approximate run time for each benchmark
-test.blockprofile="": write a goroutine blocking profile to the named file after execution
-test.blockprofilerate=1: if >= 0, calls runtime.SetBlockProfileRate()
-test.cpu="": comma-separated list of number of CPUs to use for each test
-test.cpuprofile="": write a cpu profile to the named file during execution
-test.memprofile="": write a memory profile to the named file after execution
-test.memprofilerate=0: if >=0, sets runtime.MemProfileRate
-test.parallel=1: maximum test parallelism
-test.run="": regular expression to select tests and examples to run
-test.short=false: run smaller test suite to save time
-test.timeout=0: if positive, sets an aggregate time limit for all tests
-test.v=false: verbose: print additional output
exit status 2

This was working till a few weeks back. has anything changed recently in gocov command usage?

[axw]

That looks a lot like you're using a version of Go < 1.2. Gocov was changed about 3 months ago to use (and require) the coverage support introduced in Go 1.2.

[ShettyA]

Thanks, You are right. On upgrading go version from 1.1.1 to 1.2, I am no longer seeing earlier faced errors. But it now looks like I can run gocov for a single package and not for for multiple packages in one command.

On running gocov test <list of packages>, I run into following errors.
"cannot use test profile flag with multiple packages
error: %v exit status 1"

Is there a different way to get gocov working for multiple packages?

[axw]

Unfortunately support for testing multiple packages at once was lost in the move to using the 1.2 coverage features. What I would suggest is to run "go test -coverprofile= " for each package, and then combine all of the profiles into one gocov profile with "gocov convert <profile.0> <profile.1> ... <profile.N>".

I'll close this issue as the original problem is resolved, but feel free to continue the discussion of multiple packages.