package container // import "github.com/docker/docker/container" import ( "context" "testing" "time" "github.com/docker/docker/api/types" ) func TestIsValidHealthString(t *testing.T) { contexts := []struct { Health string Expected bool }{ {types.Healthy, true}, {types.Unhealthy, true}, {types.Starting, true}, {types.NoHealthcheck, true}, {"fail", false}, } for _, c := range contexts { v := IsValidHealthString(c.Health) if v != c.Expected { t.Fatalf("Expected %t, but got %t", c.Expected, v) } } } func TestStateRunStop(t *testing.T) { s := NewState() // Begin another wait with WaitConditionRemoved. It should complete // within 200 milliseconds. ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond) defer cancel() removalWait := s.Wait(ctx, WaitConditionRemoved) // Full lifecycle two times. for i := 1; i <= 2; i++ { // A wait with WaitConditionNotRunning should return // immediately since the state is now either "created" (on the // first iteration) or "exited" (on the second iteration). It // shouldn't take more than 50 milliseconds. ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond) defer cancel() // Expectx exit code to be i-1 since it should be the exit // code from the previous loop or 0 for the created state. if status := <-s.Wait(ctx, WaitConditionNotRunning); status.ExitCode() != i-1 { t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i-1, status.Err()) } // A wait with WaitConditionNextExit should block until the // container has started and exited. It shouldn't take more // than 100 milliseconds. ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond) defer cancel() initialWait := s.Wait(ctx, WaitConditionNextExit) // Set the state to "Running". s.Lock() s.SetRunning(i, true) s.Unlock() // Assert desired state. if !s.IsRunning() { t.Fatal("State not running") } if s.Pid != i { t.Fatalf("Pid %v, expected %v", s.Pid, i) } if s.ExitCode() != 0 { t.Fatalf("ExitCode %v, expected 0", s.ExitCode()) } // Now that it's running, a wait with WaitConditionNotRunning // should block until we stop the container. It shouldn't take // more than 100 milliseconds. ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond) defer cancel() exitWait := s.Wait(ctx, WaitConditionNotRunning) // Set the state to "Exited". s.Lock() s.SetStopped(&ExitStatus{ExitCode: i}) s.Unlock() // Assert desired state. if s.IsRunning() { t.Fatal("State is running") } if s.ExitCode() != i { t.Fatalf("ExitCode %v, expected %v", s.ExitCode(), i) } if s.Pid != 0 { t.Fatalf("Pid %v, expected 0", s.Pid) } // Receive the initialWait result. if status := <-initialWait; status.ExitCode() != i { t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i, status.Err()) } // Receive the exitWait result. if status := <-exitWait; status.ExitCode() != i { t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i, status.Err()) } } // Set the state to dead and removed. s.Lock() s.Dead = true s.Unlock() s.SetRemoved() // Wait for removed status or timeout. if status := <-removalWait; status.ExitCode() != 2 { // Should have the final exit code from the loop. t.Fatalf("Removal wait exitCode %v, expected %v, err %q", status.ExitCode(), 2, status.Err()) } } func TestStateTimeoutWait(t *testing.T) { s := NewState() s.Lock() s.SetRunning(0, true) s.Unlock() // Start a wait with a timeout. ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond) defer cancel() waitC := s.Wait(ctx, WaitConditionNotRunning) // It should timeout *before* this 200ms timer does. select { case <-time.After(200 * time.Millisecond): t.Fatal("Stop callback doesn't fire in 200 milliseconds") case status := <-waitC: t.Log("Stop callback fired") // Should be a timeout error. if status.Err() == nil { t.Fatal("expected timeout error, got nil") } if status.ExitCode() != -1 { t.Fatalf("expected exit code %v, got %v", -1, status.ExitCode()) } } s.Lock() s.SetStopped(&ExitStatus{ExitCode: 0}) s.Unlock() // Start another wait with a timeout. This one should return // immediately. ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond) defer cancel() waitC = s.Wait(ctx, WaitConditionNotRunning) select { case <-time.After(200 * time.Millisecond): t.Fatal("Stop callback doesn't fire in 200 milliseconds") case status := <-waitC: t.Log("Stop callback fired") if status.ExitCode() != 0 { t.Fatalf("expected exit code %v, got %v, err %q", 0, status.ExitCode(), status.Err()) } } } // Related issue: #39352 func TestCorrectStateWaitResultAfterRestart(t *testing.T) { s := NewState() s.Lock() s.SetRunning(0, true) s.Unlock() waitC := s.Wait(context.Background(), WaitConditionNotRunning) want := ExitStatus{ExitCode: 10, ExitedAt: time.Now()} s.Lock() s.SetRestarting(&want) s.Unlock() s.Lock() s.SetRunning(0, true) s.Unlock() got := <-waitC if got.exitCode != want.ExitCode { t.Fatalf("expected exit code %v, got %v", want.ExitCode, got.exitCode) } } func TestIsValidStateString(t *testing.T) { states := []struct { state string expected bool }{ {"paused", true}, {"restarting", true}, {"running", true}, {"dead", true}, {"start", false}, {"created", true}, {"exited", true}, {"removing", true}, {"stop", false}, } for _, s := range states { v := IsValidStateString(s.state) if v != s.expected { t.Fatalf("Expected %t, but got %t", s.expected, v) } } }