64 lines
2.3 KiB
Go
64 lines
2.3 KiB
Go
package main
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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func TestReadNetworkSnapshot(t *testing.T) {
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path := filepath.Join(t.TempDir(), "netdev")
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content := `Inter-| Receive | Transmit
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face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
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lo: 100 1 0 0 0 0 0 0 100 1 0 0 0 0 0 0
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eth0: 1200 2 0 0 0 0 0 0 3400 3 0 0 0 0 0 0
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vmbr0: 5600 4 0 0 0 0 0 0 7800 5 0 0 0 0 0 0
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`
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if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
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t.Fatal(err)
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}
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snapshot, interfaces, details, err := readNetworkSnapshot(path)
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if err != nil {
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t.Fatal(err)
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}
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if snapshot.received != 6800 || snapshot.sent != 11200 {
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t.Fatalf("неожиданные сетевые счётчики: %+v", snapshot)
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}
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if len(interfaces) != 2 {
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t.Fatalf("неожиданный список интерфейсов: %v", interfaces)
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}
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if len(details) != 2 {
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t.Fatalf("unexpected interface details: %+v", details)
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}
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}
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func TestExplainNetworkHealthDistinguishesDNSFailure(t *testing.T) {
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health := NetworkHealth{Gateway: "192.168.0.1", GatewayUp: true, InternetUp: true, DNSUp: false}
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explainNetworkHealth(&health, nil)
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if !strings.Contains(health.Summary, "DNS") || health.RecommendedAction == "" {
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t.Fatalf("непонятная диагностика: %+v", health)
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}
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}
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func TestExplainNetworkHealthIgnoresOldInterfaceCounters(t *testing.T) {
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health := NetworkHealth{Gateway: "192.168.0.1", GatewayUp: true, InternetUp: true, DNSUp: true}
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explainNetworkHealth(&health, []NetworkInterface{{Name: "eno1", Carrier: true, State: "up", ReceiveDrops: 42}})
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if health.Summary != "Сеть работает штатно" {
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t.Fatalf("старый накопленный счётчик вызвал текущую тревогу: %+v", health)
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}
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explainNetworkHealth(&health, []NetworkInterface{{Name: "eno1", Carrier: true, State: "up", ReceiveDrops: 43, NewDrops: 1}})
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if health.Summary != "Сеть работает штатно" {
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t.Fatalf("software drops вызвали тревогу: %+v", health)
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}
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}
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func TestInterfaceVMID(t *testing.T) {
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for name, want := range map[string]int{"tap100i0": 100, "veth108i0": 108, "fwbr113i0": 0, "vmbr0": 0, "enp6s0": 0} {
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if got := interfaceVMID(name); got != want {
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t.Fatalf("%s: got %d want %d", name, got, want)
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}
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}
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}
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