320 lines
9.3 KiB
Go
320 lines
9.3 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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package plugin_test
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import (
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"bytes"
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"context"
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"flag"
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"fmt"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"time"
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)
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var gcflags string = os.Getenv("GO_GCFLAGS")
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func TestMain(m *testing.M) {
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flag.Parse()
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if testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" {
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fmt.Printf("SKIP - short mode and $GO_BUILDER_NAME not set\n")
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os.Exit(0)
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}
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log.SetFlags(log.Lshortfile)
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os.Exit(testMain(m))
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}
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// tmpDir is used to cleanup logged commands -- s/tmpDir/$TMPDIR/
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var tmpDir string
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// prettyPrintf prints lines with tmpDir sanitized.
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func prettyPrintf(format string, args ...interface{}) {
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s := fmt.Sprintf(format, args...)
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if tmpDir != "" {
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s = strings.ReplaceAll(s, tmpDir, "$TMPDIR")
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}
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fmt.Print(s)
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}
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func testMain(m *testing.M) int {
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// Copy testdata into GOPATH/src/testplugin, along with a go.mod file
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// declaring the same path.
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GOPATH, err := os.MkdirTemp("", "plugin_test")
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if err != nil {
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log.Panic(err)
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}
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defer os.RemoveAll(GOPATH)
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tmpDir = GOPATH
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modRoot := filepath.Join(GOPATH, "src", "testplugin")
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altRoot := filepath.Join(GOPATH, "alt", "src", "testplugin")
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for srcRoot, dstRoot := range map[string]string{
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"testdata": modRoot,
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filepath.Join("altpath", "testdata"): altRoot,
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} {
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if err := overlayDir(dstRoot, srcRoot); err != nil {
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log.Panic(err)
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}
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prettyPrintf("mkdir -p %s\n", dstRoot)
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prettyPrintf("rsync -a %s/ %s\n", srcRoot, dstRoot)
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if err := os.WriteFile(filepath.Join(dstRoot, "go.mod"), []byte("module testplugin\n"), 0666); err != nil {
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log.Panic(err)
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}
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prettyPrintf("echo 'module testplugin' > %s/go.mod\n", dstRoot)
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}
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os.Setenv("GOPATH", filepath.Join(GOPATH, "alt"))
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if err := os.Chdir(altRoot); err != nil {
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log.Panic(err)
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} else {
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prettyPrintf("cd %s\n", altRoot)
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}
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os.Setenv("PWD", altRoot)
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goCmd(nil, "build", "-buildmode=plugin", "-o", filepath.Join(modRoot, "plugin-mismatch.so"), "./plugin-mismatch")
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os.Setenv("GOPATH", GOPATH)
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if err := os.Chdir(modRoot); err != nil {
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log.Panic(err)
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} else {
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prettyPrintf("cd %s\n", modRoot)
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}
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os.Setenv("PWD", modRoot)
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os.Setenv("LD_LIBRARY_PATH", modRoot)
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goCmd(nil, "build", "-buildmode=plugin", "./plugin1")
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goCmd(nil, "build", "-buildmode=plugin", "./plugin2")
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so, err := os.ReadFile("plugin2.so")
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if err != nil {
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log.Panic(err)
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}
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if err := os.WriteFile("plugin2-dup.so", so, 0444); err != nil {
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log.Panic(err)
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}
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prettyPrintf("cp plugin2.so plugin2-dup.so\n")
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goCmd(nil, "build", "-buildmode=plugin", "-o=sub/plugin1.so", "./sub/plugin1")
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goCmd(nil, "build", "-buildmode=plugin", "-o=unnamed1.so", "./unnamed1/main.go")
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goCmd(nil, "build", "-buildmode=plugin", "-o=unnamed2.so", "./unnamed2/main.go")
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goCmd(nil, "build", "-o", "host.exe", "./host")
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return m.Run()
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}
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func goCmd(t *testing.T, op string, args ...string) {
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if t != nil {
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t.Helper()
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}
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run(t, "go", append([]string{op, "-gcflags", gcflags}, args...)...)
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}
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// escape converts a string to something suitable for a shell command line.
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func escape(s string) string {
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s = strings.Replace(s, "\\", "\\\\", -1)
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s = strings.Replace(s, "'", "\\'", -1)
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// Conservative guess at characters that will force quoting
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if s == "" || strings.ContainsAny(s, "\\ ;#*&$~?!|[]()<>{}`") {
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s = "'" + s + "'"
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}
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return s
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}
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// asCommandLine renders cmd as something that could be copy-and-pasted into a command line
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func asCommandLine(cwd string, cmd *exec.Cmd) string {
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s := "("
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if cmd.Dir != "" && cmd.Dir != cwd {
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s += "cd" + escape(cmd.Dir) + ";"
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}
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for _, e := range cmd.Env {
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if !strings.HasPrefix(e, "PATH=") &&
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!strings.HasPrefix(e, "HOME=") &&
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!strings.HasPrefix(e, "USER=") &&
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!strings.HasPrefix(e, "SHELL=") {
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s += " "
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s += escape(e)
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}
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}
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// These EVs are relevant to this test.
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for _, e := range os.Environ() {
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if strings.HasPrefix(e, "PWD=") ||
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strings.HasPrefix(e, "GOPATH=") ||
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strings.HasPrefix(e, "LD_LIBRARY_PATH=") {
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s += " "
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s += escape(e)
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}
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}
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for _, a := range cmd.Args {
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s += " "
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s += escape(a)
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}
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s += " )"
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return s
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}
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func run(t *testing.T, bin string, args ...string) string {
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cmd := exec.Command(bin, args...)
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cmdLine := asCommandLine(".", cmd)
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prettyPrintf("%s\n", cmdLine)
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cmd.Stderr = new(strings.Builder)
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out, err := cmd.Output()
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if err != nil {
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if t == nil {
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log.Panicf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
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} else {
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t.Helper()
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t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
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}
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}
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return string(bytes.TrimSpace(out))
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}
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func TestDWARFSections(t *testing.T) {
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// test that DWARF sections are emitted for plugins and programs importing "plugin"
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goCmd(t, "run", "./checkdwarf/main.go", "plugin2.so", "plugin2.UnexportedNameReuse")
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goCmd(t, "run", "./checkdwarf/main.go", "./host.exe", "main.main")
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}
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func TestRunHost(t *testing.T) {
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run(t, "./host.exe")
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}
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func TestUniqueTypesAndItabs(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "./iface_a")
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goCmd(t, "build", "-buildmode=plugin", "./iface_b")
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goCmd(t, "build", "-o", "iface.exe", "./iface")
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run(t, "./iface.exe")
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}
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func TestIssue18676(t *testing.T) {
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// make sure we don't add the same itab twice.
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// The buggy code hangs forever, so use a timeout to check for that.
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goCmd(t, "build", "-buildmode=plugin", "-o", "plugin.so", "./issue18676/plugin.go")
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goCmd(t, "build", "-o", "issue18676.exe", "./issue18676/main.go")
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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cmd := exec.CommandContext(ctx, "./issue18676.exe")
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out, err := cmd.CombinedOutput()
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if err != nil {
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t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, out)
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}
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}
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func TestIssue19534(t *testing.T) {
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// Test that we can load a plugin built in a path with non-alpha characters.
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goCmd(t, "build", "-buildmode=plugin", "-ldflags='-pluginpath=issue.19534'", "-o", "plugin.so", "./issue19534/plugin.go")
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goCmd(t, "build", "-o", "issue19534.exe", "./issue19534/main.go")
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run(t, "./issue19534.exe")
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}
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func TestIssue18584(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "plugin.so", "./issue18584/plugin.go")
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goCmd(t, "build", "-o", "issue18584.exe", "./issue18584/main.go")
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run(t, "./issue18584.exe")
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}
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func TestIssue19418(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-ldflags=-X main.Val=linkstr", "-o", "plugin.so", "./issue19418/plugin.go")
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goCmd(t, "build", "-o", "issue19418.exe", "./issue19418/main.go")
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run(t, "./issue19418.exe")
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}
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func TestIssue19529(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "plugin.so", "./issue19529/plugin.go")
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}
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func TestIssue22175(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue22175_plugin1.so", "./issue22175/plugin1.go")
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue22175_plugin2.so", "./issue22175/plugin2.go")
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goCmd(t, "build", "-o", "issue22175.exe", "./issue22175/main.go")
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run(t, "./issue22175.exe")
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}
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func TestIssue22295(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue.22295.so", "./issue22295.pkg")
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goCmd(t, "build", "-o", "issue22295.exe", "./issue22295.pkg/main.go")
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run(t, "./issue22295.exe")
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}
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func TestIssue24351(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue24351.so", "./issue24351/plugin.go")
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goCmd(t, "build", "-o", "issue24351.exe", "./issue24351/main.go")
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run(t, "./issue24351.exe")
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}
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func TestIssue25756(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "life.so", "./issue25756/plugin")
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goCmd(t, "build", "-o", "issue25756.exe", "./issue25756/main.go")
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// Fails intermittently, but 20 runs should cause the failure
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for n := 20; n > 0; n-- {
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t.Run(fmt.Sprint(n), func(t *testing.T) {
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t.Parallel()
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run(t, "./issue25756.exe")
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})
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}
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}
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// Test with main using -buildmode=pie with plugin for issue #43228
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func TestIssue25756pie(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "life.so", "./issue25756/plugin")
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goCmd(t, "build", "-buildmode=pie", "-o", "issue25756pie.exe", "./issue25756/main.go")
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run(t, "./issue25756pie.exe")
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}
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func TestMethod(t *testing.T) {
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// Exported symbol's method must be live.
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goCmd(t, "build", "-buildmode=plugin", "-o", "plugin.so", "./method/plugin.go")
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goCmd(t, "build", "-o", "method.exe", "./method/main.go")
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run(t, "./method.exe")
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}
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func TestMethod2(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "method2.so", "./method2/plugin.go")
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goCmd(t, "build", "-o", "method2.exe", "./method2/main.go")
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run(t, "./method2.exe")
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}
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func TestIssue44956(t *testing.T) {
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue44956p1.so", "./issue44956/plugin1.go")
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goCmd(t, "build", "-buildmode=plugin", "-o", "issue44956p2.so", "./issue44956/plugin2.go")
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goCmd(t, "build", "-o", "issue44956.exe", "./issue44956/main.go")
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run(t, "./issue44956.exe")
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}
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func TestForkExec(t *testing.T) {
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// Issue 38824: importing the plugin package causes it hang in forkExec on darwin.
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t.Parallel()
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goCmd(t, "build", "-o", "forkexec.exe", "./forkexec/main.go")
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var cmd *exec.Cmd
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done := make(chan int, 1)
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go func() {
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for i := 0; i < 100; i++ {
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cmd = exec.Command("./forkexec.exe", "1")
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err := cmd.Run()
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if err != nil {
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t.Errorf("running command failed: %v", err)
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break
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}
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}
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done <- 1
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}()
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select {
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case <-done:
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case <-time.After(5 * time.Minute):
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cmd.Process.Kill()
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t.Fatalf("subprocess hang")
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}
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}
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