You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
3.0 KiB
102 lines
3.0 KiB
// Copyright 2019 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build explicit
|
|
|
|
// Package experiment_toolid_test verifies that GOEXPERIMENT settings built
|
|
// into the toolchain influence tool ids in the Go command.
|
|
// This test requires bootstrapping the toolchain twice, so it's very expensive.
|
|
// It must be run explicitly with -tags=explicit.
|
|
// Verifies golang.org/issue/33091.
|
|
package reboot_test
|
|
|
|
import (
|
|
"bytes"
|
|
"io/ioutil"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"runtime"
|
|
"testing"
|
|
)
|
|
|
|
func TestExperimentToolID(t *testing.T) {
|
|
// Set up GOROOT
|
|
goroot, err := ioutil.TempDir("", "experiment-goroot")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(goroot)
|
|
|
|
gorootSrc := filepath.Join(goroot, "src")
|
|
if err := overlayDir(gorootSrc, filepath.Join(runtime.GOROOT(), "src")); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if err := ioutil.WriteFile(filepath.Join(goroot, "VERSION"), []byte("go1.999"), 0666); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
env := append(os.Environ(), "GOROOT=", "GOROOT_BOOTSTRAP="+runtime.GOROOT())
|
|
|
|
// Use a clean cache.
|
|
gocache, err := ioutil.TempDir("", "experiment-gocache")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.RemoveAll(gocache)
|
|
env = append(env, "GOCACHE="+gocache)
|
|
|
|
// Build the toolchain without GOEXPERIMENT.
|
|
var makeScript string
|
|
switch runtime.GOOS {
|
|
case "windows":
|
|
makeScript = "make.bat"
|
|
case "plan9":
|
|
makeScript = "make.rc"
|
|
default:
|
|
makeScript = "make.bash"
|
|
}
|
|
makeScriptPath := filepath.Join(runtime.GOROOT(), "src", makeScript)
|
|
runCmd(t, gorootSrc, env, makeScriptPath)
|
|
|
|
// Verify compiler version string.
|
|
goCmdPath := filepath.Join(goroot, "bin", "go")
|
|
if runtime.GOOS == "windows" {
|
|
goCmdPath += ".exe"
|
|
}
|
|
gotVersion := bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
|
|
wantVersion := []byte(`compile version go1.999`)
|
|
if !bytes.Equal(gotVersion, wantVersion) {
|
|
t.Errorf("compile version without experiment: got %q, want %q", gotVersion, wantVersion)
|
|
}
|
|
|
|
// Build a package in a mode not handled by the make script.
|
|
runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
|
|
|
|
// Rebuild the toolchain with GOEXPERIMENT.
|
|
env = append(env, "GOEXPERIMENT=fieldtrack")
|
|
runCmd(t, gorootSrc, env, makeScriptPath)
|
|
|
|
// Verify compiler version string.
|
|
gotVersion = bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
|
|
wantVersion = []byte(`compile version go1.999 X:fieldtrack,framepointer`)
|
|
if !bytes.Equal(gotVersion, wantVersion) {
|
|
t.Errorf("compile version with experiment: got %q, want %q", gotVersion, wantVersion)
|
|
}
|
|
|
|
// Build the same package. We should not get a cache conflict.
|
|
runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
|
|
}
|
|
|
|
func runCmd(t *testing.T, dir string, env []string, path string, args ...string) []byte {
|
|
cmd := exec.Command(path, args...)
|
|
cmd.Dir = dir
|
|
cmd.Env = env
|
|
out, err := cmd.Output()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
return out
|
|
}
|