| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "strings" |
| 7 | "testing" |
| 8 | "time" |
| 9 | |
| 10 | "reasonix/internal/config" |
| 11 | ) |
| 12 | |
| 13 | func TestHangAgeBucket(t *testing.T) { |
| 14 | cases := []struct { |
| 15 | age time.Duration |
| 16 | want string |
| 17 | }{ |
| 18 | {12 * time.Second, "s_10_15"}, |
| 19 | {16 * time.Second, "s_15_30"}, |
| 20 | {45 * time.Second, "s_30_60"}, |
| 21 | {2 * time.Minute, "m_1_5"}, |
| 22 | {10 * time.Minute, "m_5_plus"}, |
| 23 | } |
| 24 | for _, c := range cases { |
| 25 | if got := hangAgeBucket(c.age); got != c.want { |
| 26 | t.Errorf("hangAgeBucket(%s) = %q, want %q", c.age, got, c.want) |
| 27 | } |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | func TestMainThreadHangReportIsStructuredPerformanceReport(t *testing.T) { |
| 32 | last := time.Date(2026, 7, 4, 9, 19, 11, 0, time.UTC) |
| 33 | observed := last.Add(16 * time.Second) |
| 34 | |
| 35 | r := mainThreadHangReport(16*time.Second, last, observed) |
| 36 | |
| 37 | wantLabel, wantErrorType, _, _ := mainThreadDiagnosticIdentity() |
| 38 | if r.Kind != "performance" || r.Source != "native.watchdog" || r.Label != wantLabel { |
| 39 | t.Fatalf("unexpected report identity: %+v", r) |
| 40 | } |
| 41 | if r.SchemaVersion != 2 || r.ErrorType != wantErrorType || r.TopFrame == "" || r.OccurredAt == "" { |
| 42 | t.Fatalf("structured fields missing: %+v", r) |
| 43 | } |
| 44 | for _, want := range []string{"Reasonix detected", "last heartbeat:", "bucket: s_15_30", "goroutines:"} { |
| 45 | if !strings.Contains(r.Message, want) { |
| 46 | t.Fatalf("hang report message missing %q:\n%s", want, r.Message) |
| 47 | } |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | func TestMainThreadHeartbeatAgeIgnoresWallClockJump(t *testing.T) { |
| 52 | oldBase := mainThreadClockBase |
| 53 | oldElapsed := mainThreadLastHeartbeatElapsed.Load() |
| 54 | oldWall := mainThreadLastHeartbeatWall.Load() |
| 55 | t.Cleanup(func() { |
| 56 | mainThreadClockBase = oldBase |
| 57 | mainThreadLastHeartbeatElapsed.Store(oldElapsed) |
| 58 | mainThreadLastHeartbeatWall.Store(oldWall) |
| 59 | }) |
| 60 | |
| 61 | base := time.Now() |
| 62 | mainThreadClockBase = base |
| 63 | mainThreadLastHeartbeatElapsed.Store(int64(time.Second)) |
| 64 | mainThreadLastHeartbeatWall.Store(base.Add(-time.Hour).UnixNano()) |
| 65 | |
| 66 | age, _, ok := mainThreadHeartbeatAge(base.Add(2 * time.Second)) |
| 67 | if !ok { |
| 68 | t.Fatal("expected heartbeat age") |
| 69 | } |
| 70 | if age != time.Second { |
| 71 | t.Fatalf("age = %s, want monotonic elapsed 1s despite wall-clock jump", age) |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | func TestWatchdogResetsHeartbeatAfterSleepGap(t *testing.T) { |
| 76 | oldBase := mainThreadClockBase |
| 77 | oldElapsed := mainThreadLastHeartbeatElapsed.Load() |
| 78 | oldWall := mainThreadLastHeartbeatWall.Load() |
| 79 | t.Cleanup(func() { |
| 80 | mainThreadClockBase = oldBase |
| 81 | mainThreadLastHeartbeatElapsed.Store(oldElapsed) |
| 82 | mainThreadLastHeartbeatWall.Store(oldWall) |
| 83 | }) |
| 84 | |
| 85 | base := time.Now() |
| 86 | mainThreadClockBase = base |
| 87 | recordMainThreadHeartbeat(base) |
| 88 | wake := base.Add(8 * time.Hour) |
| 89 | if !resetMainThreadHeartbeatAfterSleep(base, wake) { |
| 90 | t.Fatal("expected sleep gap to reset the heartbeat") |
| 91 | } |
| 92 | age, _, ok := mainThreadHeartbeatAge(wake.Add(mainThreadHangCheckInterval)) |
| 93 | if !ok || age != mainThreadHangCheckInterval { |
| 94 | t.Fatalf("age after wake = %s, ok=%v; want %s", age, ok, mainThreadHangCheckInterval) |
| 95 | } |
| 96 | if resetMainThreadHeartbeatAfterSleep(wake, wake.Add(mainThreadHangCheckInterval)) { |
| 97 | t.Fatal("ordinary watchdog interval was treated as sleep") |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | func TestRecordMainThreadHangWritesPendingReportAndMetrics(t *testing.T) { |
| 102 | t.Cleanup(func() { |
| 103 | removeAllPendingCrashes() |
| 104 | os.Remove(filepath.Join(config.MemoryUserDir(), metricsPendingFile)) |
| 105 | }) |
| 106 | app := NewApp() |
| 107 | app.metrics.Store(newMetricsAggregator(config.MemoryUserDir())) |
| 108 | |
| 109 | last := time.Now().Add(-20 * time.Second) |
| 110 | app.recordMainThreadHang(20*time.Second, last, time.Now()) |
| 111 | |
| 112 | r, ok := readPending(t) |
| 113 | if !ok { |
| 114 | t.Fatal("expected pending hang report") |
| 115 | } |
| 116 | wantLabel, _, _, _ := mainThreadDiagnosticIdentity() |
| 117 | if r.Kind != "performance" || r.Source != "native.watchdog" || r.Label != wantLabel { |
| 118 | t.Fatalf("pending report = %+v", r) |
| 119 | } |
| 120 | c := readCounters(filepath.Join(config.MemoryUserDir(), metricsPendingFile)) |
| 121 | metricBucket := mainThreadMetricBucket() |
| 122 | if got := c["desktop_hang"][metricBucket]; got != 1 { |
| 123 | t.Fatalf("desktop_hang/%s = %d, want 1", metricBucket, got) |
| 124 | } |
| 125 | if got := c["desktop_hang_age"]["s_15_30"]; got != 1 { |
| 126 | t.Fatalf("desktop_hang_age/s_15_30 = %d, want 1", got) |
| 127 | } |
| 128 | } |
| 129 |