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| 1 | package registry |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | ) |
| 8 | |
| 9 | func TestSnapshotToProducesOpenableCopy(t *testing.T) { |
| 10 | dir := t.TempDir() |
| 11 | reg, err := Open(filepath.Join(dir, "registry.db")) |
| 12 | if err != nil { |
| 13 | t.Fatal(err) |
| 14 | } |
| 15 | defer reg.Close() |
| 16 | if err := reg.Upsert(Route{Host: "a.example.com", Kind: "service", Addr: "10.0.0.1:3000", Status: "ready"}); err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | |
| 20 | out := filepath.Join(dir, "snap.db") |
| 21 | if err := reg.SnapshotTo(out); err != nil { |
| 22 | t.Fatal(err) |
| 23 | } |
| 24 | |
| 25 | copyReg, err := Open(out) |
| 26 | if err != nil { |
| 27 | t.Fatalf("open snapshot: %v", err) |
| 28 | } |
| 29 | defer copyReg.Close() |
| 30 | rt, err := copyReg.Get("a.example.com") |
| 31 | if err != nil { |
| 32 | t.Fatal(err) |
| 33 | } |
| 34 | if rt.Addr != "10.0.0.1:3000" { |
| 35 | t.Fatalf("snapshot route addr = %q, want 10.0.0.1:3000", rt.Addr) |
| 36 | } |
| 37 | } |
| 38 | |
| 39 | func TestSnapshotToRefusesExistingTarget(t *testing.T) { |
| 40 | dir := t.TempDir() |
| 41 | reg, err := Open(filepath.Join(dir, "registry.db")) |
| 42 | if err != nil { |
| 43 | t.Fatal(err) |
| 44 | } |
| 45 | defer reg.Close() |
| 46 | out := filepath.Join(dir, "snap.db") |
| 47 | if err := os.WriteFile(out, []byte("x"), 0o644); err != nil { |
| 48 | t.Fatal(err) |
| 49 | } |
| 50 | if err := reg.SnapshotTo(out); err == nil { |
| 51 | t.Fatal("SnapshotTo over an existing file: want error, got nil") |
| 52 | } |
| 53 | } |
| 54 | |
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