How to correctly run test in Golang source code directory runtime?

[Chai Baoyang]

Hi All,

     I tried to run "go test -timeout 30s -run ^TestMemStats$" in the source directory runtime. But failed with error infomation below:

"error.go:7:8: use of internal package internal/bytealg not allowed

alg.go:8:2: use of internal package internal/cpu not allowed

atomic_pointer.go:8:2: use of internal package runtime/internal/atomic not allowed

chan.go:22:2: use of internal package runtime/internal/math not allowed

alg.go:9:2: use of internal package runtime/internal/sys not allowed"

My ENV listed below

```

runtime git:(a7acf9af07) ✗ pwd

/Users/byc/go/src/go/src/runtime

➜  runtime git:(a7acf9af07) ✗ go env

GO111MODULE="on"

GOARCH="amd64"

GOBIN=""

GOCACHE="/Users/byc/Library/Caches/go-build"

GOENV="/Users/byc/Library/Application Support/go/env"

GOEXE=""

GOFLAGS=""

GOHOSTARCH="amd64"

GOHOSTOS="darwin"

GONOPROXY=""

GONOSUMDB=""

GOOS="darwin"

GOPATH="/Users/byc/.gvm/pkgsets/go1.13.8/global"

GOPRIVATE=""

GOPROXY="https://mirrors.aliyun.com/goproxy/,direct"

GOROOT="/Users/byc/.gvm/gos/go1.13.8"

GOSUMDB="sum.golang.org"

GOTMPDIR=""

GOTOOLDIR="/Users/byc/.gvm/gos/go1.13.8/pkg/tool/darwin_amd64"

GCCGO="gccgo"

AR="ar"

CC="clang"

CXX="clang++"

CGO_ENABLED="1"

GOMOD="/Users/byc/go/src/go/src/go.mod"

CGO_CFLAGS="-g -O2"

CGO_CPPFLAGS=""

CGO_CXXFLAGS="-g -O2"

CGO_FFLAGS="-g -O2"

CGO_LDFLAGS="-g -O2"

PKG_CONFIG="pkg-config"

GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/vd/rxp_88ls0vx5_s23q8v7xyg80000gn/T/go-build370571100=/tmp/go-build -gno-record-gcc-switches -fno-common".

    Who can tell me how to run the test correctly?

```

[Ian Lance Taylor]

On Fri, Aug 28, 2020 at 9:35 AM Chai Baoyang <8830...@qq.com> wrote:
>
> Hi All,
> I tried to run "go test -timeout 30s -run ^TestMemStats$" in the source directory runtime. But failed with error infomation below:
> "error.go:7:8: use of internal package internal/bytealg not allowed
> alg.go:8:2: use of internal package internal/cpu not allowed
> atomic_pointer.go:8:2: use of internal package runtime/internal/atomic not allowed
> chan.go:22:2: use of internal package runtime/internal/math not allowed
> alg.go:9:2: use of internal package runtime/internal/sys not allowed"

This normally means that the "go" binary on your PATH had a GOROOT
that was not the same as the directory in which you ran "go test".

Ian