- done := make(chan bool)
- var msg []byte
- var err error
- go func() {
- msg, err = rcv.ReadBytes('\n')
- close(done)
- }()
- {
- // The special file /proc/self/mem can be opened for
- // reading, but reading from byte 0 returns an error.
- f, err := os.Open("/proc/self/mem")
- if err != nil {
- c.Fatalf("Opening /proc/self/mem: %s", err)
- }
- if x, err := rep.readAllOrWarn(f); err == nil {
- c.Fatalf("Expected error, got %v", x)
- }
- }
- <-done
- if err != nil {
- c.Fatal(err)
- } else if matched, err := regexp.MatchString("^warning: read /proc/self/mem: .*", string(msg)); err != nil || !matched {
- c.Fatalf("Expected error message about unreadable file, got \"%s\"", msg)
- }
+ // The special file /proc/self/mem can be opened for
+ // reading, but reading from byte 0 returns an error.
+ f, err := os.Open("/proc/self/mem")
+ c.Assert(err, IsNil)
+ defer f.Close()
+ _, err = rep.readAllOrWarn(f)
+ c.Check(err, NotNil)
+ c.Check(logger.String(), Matches, "^warning: read /proc/self/mem: .*\n")