diff options
Diffstat (limited to 'libgo/go/os/os_test.go')
-rw-r--r-- | libgo/go/os/os_test.go | 40 |
1 files changed, 27 insertions, 13 deletions
diff --git a/libgo/go/os/os_test.go b/libgo/go/os/os_test.go index e90b89dfa1b..59e4fb693d6 100644 --- a/libgo/go/os/os_test.go +++ b/libgo/go/os/os_test.go @@ -28,6 +28,16 @@ import ( "time" ) +func TestMain(m *testing.M) { + if Getenv("GO_OS_TEST_DRAIN_STDIN") == "1" { + os.Stdout.Close() + io.Copy(io.Discard, os.Stdin) + Exit(0) + } + + Exit(m.Run()) +} + var dot = []string{ "dir.go", "env.go", @@ -2261,9 +2271,18 @@ func testKillProcess(t *testing.T, processKiller func(p *Process)) { testenv.MustHaveExec(t) t.Parallel() - // Re-exec the test binary itself to emulate "sleep 1". - cmd := osexec.Command(Args[0], "-test.run", "TestSleep") - err := cmd.Start() + // Re-exec the test binary to start a process that hangs until stdin is closed. + cmd := osexec.Command(Args[0]) + cmd.Env = append(os.Environ(), "GO_OS_TEST_DRAIN_STDIN=1") + stdout, err := cmd.StdoutPipe() + if err != nil { + t.Fatal(err) + } + stdin, err := cmd.StdinPipe() + if err != nil { + t.Fatal(err) + } + err = cmd.Start() if err != nil { t.Fatalf("Failed to start test process: %v", err) } @@ -2272,19 +2291,14 @@ func testKillProcess(t *testing.T, processKiller func(p *Process)) { if err := cmd.Wait(); err == nil { t.Errorf("Test process succeeded, but expected to fail") } + stdin.Close() // Keep stdin alive until the process has finished dying. }() - time.Sleep(100 * time.Millisecond) - processKiller(cmd.Process) -} + // Wait for the process to be started. + // (It will close its stdout when it reaches TestMain.) + io.Copy(io.Discard, stdout) -// TestSleep emulates "sleep 1". It is a helper for testKillProcess, so we -// don't have to rely on an external "sleep" command being available. -func TestSleep(t *testing.T) { - if testing.Short() { - t.Skip("Skipping in short mode") - } - time.Sleep(time.Second) + processKiller(cmd.Process) } func TestKillStartProcess(t *testing.T) { |