|
1 | 1 | package main |
2 | 2 |
|
3 | 3 | import ( |
| 4 | + "encoding/json" |
4 | 5 | "net" |
| 6 | + "os" |
5 | 7 | "testing" |
| 8 | + "time" |
6 | 9 | ) |
7 | 10 |
|
| 11 | +func readPersistedServer(t *testing.T, app *App) map[string]any { |
| 12 | + t.Helper() |
| 13 | + data, err := os.ReadFile(app.opts.StatsPath) |
| 14 | + if err != nil { |
| 15 | + t.Fatal(err) |
| 16 | + } |
| 17 | + var stats map[string]any |
| 18 | + if err := json.Unmarshal(data, &stats); err != nil { |
| 19 | + t.Fatal(err) |
| 20 | + } |
| 21 | + servers, ok := stats["servers"].([]any) |
| 22 | + if !ok || len(servers) != 1 { |
| 23 | + t.Fatalf("unexpected persisted servers: %#v", stats["servers"]) |
| 24 | + } |
| 25 | + server, ok := servers[0].(map[string]any) |
| 26 | + if !ok { |
| 27 | + t.Fatalf("unexpected persisted server: %#v", servers[0]) |
| 28 | + } |
| 29 | + return server |
| 30 | +} |
| 31 | + |
8 | 32 | func TestTrafficBaselinesResetIndependently(t *testing.T) { |
9 | 33 | node := &NodeState{LastNetworkIn: 100, LastNetworkOut: 0} |
10 | 34 | updateTrafficBaselines(node, 150, 500, false) |
@@ -48,3 +72,110 @@ func TestDisconnectPreservesOfflineDisplayMetadata(t *testing.T) { |
48 | 72 | t.Fatalf("offline display metadata was discarded: %#v", serverStats) |
49 | 73 | } |
50 | 74 | } |
| 75 | + |
| 76 | +func TestStatsPersistenceUsesLiveMemoryBetweenFlushes(t *testing.T) { |
| 77 | + if statsFlushInterval != time.Minute { |
| 78 | + t.Fatalf("unexpected stats flush interval: %s", statsFlushInterval) |
| 79 | + } |
| 80 | + |
| 81 | + app := newTestApp(t, minimalTestConfig()) |
| 82 | + if err := app.PersistStats(); err != nil { |
| 83 | + t.Fatal(err) |
| 84 | + } |
| 85 | + initialInfo, err := os.Stat(app.opts.StatsPath) |
| 86 | + if err != nil { |
| 87 | + t.Fatal(err) |
| 88 | + } |
| 89 | + |
| 90 | + app.nodeMu.Lock() |
| 91 | + node := app.nodes["s01"] |
| 92 | + node.Connected = true |
| 93 | + node.ConnectionID = 7 |
| 94 | + app.nodeMu.Unlock() |
| 95 | + if !app.updateAgent("s01", 7, AgentStats{CPU: 42, NetworkIn: 1000, NetworkOut: 2000}) { |
| 96 | + t.Fatal("agent update was rejected") |
| 97 | + } |
| 98 | + |
| 99 | + live := app.SnapshotStats()["servers"].([]any)[0].(map[string]any) |
| 100 | + if live["cpu"] != 42 { |
| 101 | + t.Fatalf("live snapshot was not updated: %#v", live) |
| 102 | + } |
| 103 | + beforeFlushInfo, err := os.Stat(app.opts.StatsPath) |
| 104 | + if err != nil { |
| 105 | + t.Fatal(err) |
| 106 | + } |
| 107 | + if !os.SameFile(initialInfo, beforeFlushInfo) { |
| 108 | + t.Fatal("reading the live snapshot unexpectedly rewrote stats.json") |
| 109 | + } |
| 110 | + if _, exists := readPersistedServer(t, app)["cpu"]; exists { |
| 111 | + t.Fatal("agent update reached disk before the next persistence run") |
| 112 | + } |
| 113 | + |
| 114 | + if err := app.PersistStats(); err != nil { |
| 115 | + t.Fatal(err) |
| 116 | + } |
| 117 | + afterFlushInfo, err := os.Stat(app.opts.StatsPath) |
| 118 | + if err != nil { |
| 119 | + t.Fatal(err) |
| 120 | + } |
| 121 | + if os.SameFile(beforeFlushInfo, afterFlushInfo) { |
| 122 | + t.Fatal("updated stats were not persisted") |
| 123 | + } |
| 124 | + if cpu := readPersistedServer(t, app)["cpu"]; cpu != float64(42) { |
| 125 | + t.Fatalf("unexpected persisted CPU value: %#v", cpu) |
| 126 | + } |
| 127 | + |
| 128 | + if err := app.PersistStats(); err != nil { |
| 129 | + t.Fatal(err) |
| 130 | + } |
| 131 | + cleanInfo, err := os.Stat(app.opts.StatsPath) |
| 132 | + if err != nil { |
| 133 | + t.Fatal(err) |
| 134 | + } |
| 135 | + if os.SameFile(afterFlushInfo, cleanInfo) { |
| 136 | + t.Fatal("fixed-interval persistence unexpectedly skipped a write") |
| 137 | + } |
| 138 | +} |
| 139 | + |
| 140 | +func TestReloadNoticeIsIndependentFromPersistence(t *testing.T) { |
| 141 | + app := newTestApp(t, minimalTestConfig()) |
| 142 | + app.reloadPending.Store(true) |
| 143 | + if err := app.PersistStats(); err != nil { |
| 144 | + t.Fatal(err) |
| 145 | + } |
| 146 | + data, err := os.ReadFile(app.opts.StatsPath) |
| 147 | + if err != nil { |
| 148 | + t.Fatal(err) |
| 149 | + } |
| 150 | + var persisted map[string]any |
| 151 | + if err := json.Unmarshal(data, &persisted); err != nil { |
| 152 | + t.Fatal(err) |
| 153 | + } |
| 154 | + if _, exists := persisted["reload"]; exists { |
| 155 | + t.Fatal("reload notice must not be persisted to stats.json") |
| 156 | + } |
| 157 | + if reloaded, _ := app.SnapshotStats()["reload"].(bool); !reloaded { |
| 158 | + t.Fatal("pending reload notice was not returned by the live endpoint") |
| 159 | + } |
| 160 | + if _, exists := app.SnapshotStats()["reload"]; exists { |
| 161 | + t.Fatal("reload notice was returned more than once") |
| 162 | + } |
| 163 | +} |
| 164 | + |
| 165 | +func TestResetTrafficPersistsImmediately(t *testing.T) { |
| 166 | + app := newTestApp(t, minimalTestConfig()) |
| 167 | + app.nodeMu.Lock() |
| 168 | + node := app.nodes["s01"] |
| 169 | + node.Connected = true |
| 170 | + node.HasUpdate = true |
| 171 | + node.Stats = AgentStats{NetworkIn: 1234, NetworkOut: 5678} |
| 172 | + app.nodeMu.Unlock() |
| 173 | + |
| 174 | + if _, apiErr := app.ResetTraffic("s01"); apiErr != nil { |
| 175 | + t.Fatal(apiErr) |
| 176 | + } |
| 177 | + persisted := readPersistedServer(t, app) |
| 178 | + if persisted["last_network_in"] != float64(1234) || persisted["last_network_out"] != float64(5678) { |
| 179 | + t.Fatalf("traffic reset was not persisted immediately: %#v", persisted) |
| 180 | + } |
| 181 | +} |
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