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testing: no tests to run warning when running benchmarks #17603

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mvdan opened this issue Oct 26, 2016 · 4 comments
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testing: no tests to run warning when running benchmarks #17603

mvdan opened this issue Oct 26, 2016 · 4 comments
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Go1.8

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@mvdan
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mvdan commented Oct 26, 2016 •
edited

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version devel +517a44d Tue Oct 25 12:23:49 2016 +0000 linux/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/mvdan/go"
GORACE=""
GOROOT="/home/mvdan/tip"
GOTOOLDIR="/home/mvdan/tip/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build943520682=/tmp/go-build -gno-record-gcc-switches"
CXX="g++"
CGO_ENABLED="1"
PKG_CONFIG="pkg-config"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"

What did you do?

go test -run='^$' -bench=. on a package of mine with benchmarks.

What did you expect to see?

 $ go test -run='^$' -bench=.
BenchmarkFprint-4         300000              5056 ns/op
PASS
ok      github.com/mvdan/sh/printer     1.574s

What did you see instead?

 $ go test -run='^$' -bench=.
testing: warning: no tests to run
BenchmarkFprint-4         300000              5056 ns/op
PASS
ok      github.com/mvdan/sh/printer     1.574s [no tests to run]

The [no tests to run] doesn't bother me, but the extra line at the beginning does. I think this should be turned off if any benchmarks are run.

Happy to submit a patch today if this makes sense.
@mvdan
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mvdan commented Oct 26, 2016

CC @rsc @mpvl

@mpvl
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mpvl commented Oct 26, 2016

I'm fine with turning this off when running benchmarks.

@mvdan
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mvdan commented Oct 26, 2016

Cool, will send a CL soon.

@bradfitz bradfitz added this to the Go1.8 milestone Oct 26, 2016
@gopherbot
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CL https://golang.org/cl/32157 mentions this issue.

@josharian josharian mentioned this issue Nov 23, 2016
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@bradfitz @mvdan @mpvl @gopherbot