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https://github.com/golang/go
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a040ebeb98
Update references missed in CL 263142.
For #41190
Change-Id: I778760a6a69bd0440fec0848bdef539c9ccb4ee1
GitHub-Last-Rev: dda42b09ff
GitHub-Pull-Request: golang/go#42874
Reviewed-on: https://go-review.googlesource.com/c/go/+/273946
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Cherry Zhang <cherryyz@google.com>
101 lines
3.0 KiB
Go
101 lines
3.0 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build explicit
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// Package experiment_toolid_test verifies that GOEXPERIMENT settings built
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// into the toolchain influence tool ids in the Go command.
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// This test requires bootstrapping the toolchain twice, so it's very expensive.
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// It must be run explicitly with -tags=explicit.
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// Verifies golang.org/issue/33091.
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package reboot_test
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import (
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"bytes"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"testing"
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)
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func TestExperimentToolID(t *testing.T) {
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// Set up GOROOT
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goroot, err := os.MkdirTemp("", "experiment-goroot")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(goroot)
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gorootSrc := filepath.Join(goroot, "src")
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if err := overlayDir(gorootSrc, filepath.Join(runtime.GOROOT(), "src")); err != nil {
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t.Fatal(err)
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}
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if err := os.WriteFile(filepath.Join(goroot, "VERSION"), []byte("go1.999"), 0666); err != nil {
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t.Fatal(err)
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}
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env := append(os.Environ(), "GOROOT=", "GOROOT_BOOTSTRAP="+runtime.GOROOT())
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// Use a clean cache.
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gocache, err := os.MkdirTemp("", "experiment-gocache")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(gocache)
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env = append(env, "GOCACHE="+gocache)
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// Build the toolchain without GOEXPERIMENT.
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var makeScript string
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switch runtime.GOOS {
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case "windows":
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makeScript = "make.bat"
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case "plan9":
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makeScript = "make.rc"
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default:
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makeScript = "make.bash"
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}
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makeScriptPath := filepath.Join(runtime.GOROOT(), "src", makeScript)
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runCmd(t, gorootSrc, env, makeScriptPath)
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// Verify compiler version string.
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goCmdPath := filepath.Join(goroot, "bin", "go")
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if runtime.GOOS == "windows" {
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goCmdPath += ".exe"
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}
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gotVersion := bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
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wantVersion := []byte(`compile version go1.999`)
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if !bytes.Equal(gotVersion, wantVersion) {
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t.Errorf("compile version without experiment: got %q, want %q", gotVersion, wantVersion)
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}
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// Build a package in a mode not handled by the make script.
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runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
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// Rebuild the toolchain with GOEXPERIMENT.
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env = append(env, "GOEXPERIMENT=fieldtrack")
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runCmd(t, gorootSrc, env, makeScriptPath)
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// Verify compiler version string.
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gotVersion = bytes.TrimSpace(runCmd(t, gorootSrc, env, goCmdPath, "tool", "compile", "-V=full"))
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wantVersion = []byte(`compile version go1.999 X:fieldtrack,framepointer`)
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if !bytes.Equal(gotVersion, wantVersion) {
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t.Errorf("compile version with experiment: got %q, want %q", gotVersion, wantVersion)
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}
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// Build the same package. We should not get a cache conflict.
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runCmd(t, gorootSrc, env, goCmdPath, "build", "-race", "archive/tar")
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}
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func runCmd(t *testing.T, dir string, env []string, path string, args ...string) []byte {
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cmd := exec.Command(path, args...)
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cmd.Dir = dir
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cmd.Env = env
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out, err := cmd.Output()
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if err != nil {
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t.Fatal(err)
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}
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return out
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}
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