1 files changed, 118 insertions, 0 deletions
diff --git a/src/cmd/go/go_unix_test.go b/src/cmd/go/go_unix_test.go
new file mode 100644
index 0000000..7cc6825
--- /dev/null
+++ b/src/cmd/go/go_unix_test.go
@@ -0,0 +1,118 @@
+// Copyright 2015 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.
+
+//go:build unix
+
+package main_test
+
+import (
+	"bufio"
+	"context"
+	"internal/testenv"
+	"io"
+	"os"
+	"os/exec"
+	"strings"
+	"syscall"
+	"testing"
+)
+
+func TestGoBuildUmask(t *testing.T) {
+	// Do not use tg.parallel; avoid other tests seeing umask manipulation.
+	mask := syscall.Umask(0077) // prohibit low bits
+	defer syscall.Umask(mask)
+	tg := testgo(t)
+	defer tg.cleanup()
+	tg.tempFile("x.go", `package main; func main() {}`)
+	// Make sure artifact will be output to /tmp/... in case the user
+	// has POSIX acl's on their go source tree.
+	// See issue 17909.
+	exe := tg.path("x")
+	tg.creatingTemp(exe)
+	tg.run("build", "-o", exe, tg.path("x.go"))
+	fi, err := os.Stat(exe)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if mode := fi.Mode(); mode&0077 != 0 {
+		t.Fatalf("wrote x with mode=%v, wanted no 0077 bits", mode)
+	}
+}
+
+// TestTestInterrupt verifies the fix for issue #60203.
+//
+// If the whole process group for a 'go test' invocation receives
+// SIGINT (as would be sent by pressing ^C on a console),
+// it should return quickly, not deadlock.
+func TestTestInterrupt(t *testing.T) {
+	if testing.Short() {
+		t.Skipf("skipping in short mode: test executes many subprocesses")
+	}
+	// Don't run this test in parallel, for the same reason.
+
+	tg := testgo(t)
+	defer tg.cleanup()
+	tg.setenv("GOROOT", testGOROOT)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cmd := testenv.CommandContext(t, ctx, tg.goTool(), "test", "std", "-short", "-count=1")
+	cmd.Dir = tg.execDir
+
+	// Override $TMPDIR when running the tests: since we're terminating the tests
+	// with a signal they might fail to clean up some temp files, and we don't
+	// want that to cause an "unexpected files" failure at the end of the run.
+	cmd.Env = append(tg.env[:len(tg.env):len(tg.env)], tempEnvName()+"="+t.TempDir())
+
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setpgid: true,
+	}
+	cmd.Cancel = func() error {
+		pgid := cmd.Process.Pid
+		return syscall.Kill(-pgid, syscall.SIGINT)
+	}
+
+	pipe, err := cmd.StdoutPipe()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	t.Logf("running %v", cmd)
+	if err := cmd.Start(); err != nil {
+		t.Fatal(err)
+	}
+
+	stdout := new(strings.Builder)
+	r := bufio.NewReader(pipe)
+	line, err := r.ReadString('\n')
+	if err != nil {
+		t.Fatal(err)
+	}
+	stdout.WriteString(line)
+
+	// The output line for some test was written, so we know things are in progress.
+	//
+	// Cancel the rest of the run by sending SIGINT to the process group:
+	// it should finish up and exit with a nonzero status,
+	// not have to be killed with SIGKILL.
+	cancel()
+
+	io.Copy(stdout, r)
+	if stdout.Len() > 0 {
+		t.Logf("stdout:\n%s", stdout)
+	}
+	err = cmd.Wait()
+
+	ee, _ := err.(*exec.ExitError)
+	if ee == nil {
+		t.Fatalf("unexpectedly finished with nonzero status")
+	}
+	if len(ee.Stderr) > 0 {
+		t.Logf("stderr:\n%s", ee.Stderr)
+	}
+	if !ee.Exited() {
+		t.Fatalf("'go test' did not exit after interrupt: %v", err)
+	}
+
+	t.Logf("interrupted tests without deadlocking")
+}