You've missed the regexp argument to -bench; try just a . to match all
benchmarks.
(In fact go test will be interpreting crypto/tls/... as the regular
expression, and with no further parameter is trying to test what's in the
current directory.)
-bench regexp
Run only those benchmarks matching a regular expression.
By default, no benchmarks are run.
To run all benchmarks, use '-bench .' or '-bench=.'.
The regular expression is split by unbracketed slash (/)
characters into a sequence of regular expressions, and each
part of a benchmark's identifier must match the corresponding
element in the sequence, if any. Possible parents of matches
are run with b.N=1 to identify sub-benchmarks. For example,
given -bench=X/Y, top-level benchmarks matching X are run
with b.N=1 to find any sub-benchmarks matching Y, which are
then run in full.
On Saturday, October 21, 2017 at 2:54:16 PM UTC+1, Leon Klingele wrote:
>
> `go test crypto/tls/...` indeed works fine (from $HOME), but I want to
> run benchmarks as well, which fails:
> ```
> $ pwd
> /home/leon
> $ go test -bench crypto/tls/...
> can't load package: package .: no Go files in /home/leon
> ```
>
> ```
> $ go env | grep "GO\(PATH\|ROOT\).*"
> GOPATH="/home/leon/dev/go"
> GOROOT="/usr/local/Cellar/go/1.9.1/libexec" # <- Homebrew install
> ```
>
> Running benchs from inside $GOROOT however works :o
> ```
> $ pwd
> /usr/local/Cellar/go/1.9.1/libexec # <- Homebrew install
> $ go test -bench ./...
> ```
>
> Why do benchs of the Go standard library need to be run from
> $GOROOT? This is so confusing.
>
>
> On 17.10.2017, at 23:54, Ian Lance Taylor <ia...@golang.org <javascript:>>
> wrote:
> >
> > On Tue, Oct 17, 2017 at 2:43 PM, <goo...@leonklingele.de <javascript:>>
> wrote:
> >>
> >> I was wondering how to run tests and benchmarks of the Go standard
> library
> >> such as this one:
> >>
> https://go-review.googlesource.com/c/go/+/44730/4/src/crypto/tls/handshake_server_test.go#1056
>
> >>
> >> $ pwd
> >> $GOPATH/src/github.com/golang/go/src/crypto/tls
> >> $ git rev-parse HEAD
> >> 5f740d6875ab6961381f2f4614b21ff6ddf448a4
> >> $ go version
> >> go version go1.9.1 linux/amd64
> >> $ go test -v ./...
> >> common.go:10:2: use of internal package not allowed
> >
> > My first guess would be that the version of `go` on your PATH does not
> > think that $GOPATH/src/github.com/golang/go/src/crypto/tls is in
> > GOROOT. Which is also suggested by the fact that it is in GOPATH.
> > Normally GOROOT and GOPATH should be distinct.
> >
> > Note that in general you can run `go test crypto/tls/...` from any
> > directory to test the crypto/tls directory and its subdirectories.
> >
> > Ian
>
>
>
> -----------------------------------------------------------------------
> ------------------------------------------------------------------------
>
>
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