`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 <i...@golang.org> wrote:
> 
> On Tue, Oct 17, 2017 at 2:43 PM,  <goo...@leonklingele.de> 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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