| 1 | package edge |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "net/http/httptest" |
| 6 | "testing" |
| 7 | "time" |
| 8 | |
| 9 | "github.com/carlosframework/platform/internal/domains" |
| 10 | "github.com/carlosframework/platform/internal/registry" |
| 11 | "github.com/carlosframework/platform/internal/release" |
| 12 | ) |
| 13 | |
| 14 | // TestPathFlipEndToEnd walks the whole chain a real flip takes — claim |
| 15 | // published, reconcile pass, fingerprint moves, edge reloads, traffic changes |
| 16 | // — and then walks it backwards. Each earlier task proved one layer against a |
| 17 | // hand-written input; this is the only test that proves they compose. |
| 18 | // |
| 19 | // The registry write and the edge reload are driven directly rather than |
| 20 | // waited on: the 2s tick is a latency bound, not a correctness property, and |
| 21 | // polling it would make this test slow and flaky. What must be true is that |
| 22 | // the fingerprint MOVES, which is asserted rather than assumed. |
| 23 | func TestPathFlipEndToEnd(t *testing.T) { |
| 24 | ctx := context.Background() |
| 25 | classic, _ := hostEchoBackend(t, "classic") |
| 26 | golive, _ := hostEchoBackend(t, "go") |
| 27 | |
| 28 | reg := openReg(t) |
| 29 | if err := reg.Upsert(registry.Route{ |
| 30 | Host: "ti.to", Kind: "service", Account: "tito", App: "classic", |
| 31 | Addr: classic.Listener.Addr().String(), Status: "ready", |
| 32 | }); err != nil { |
| 33 | t.Fatal(err) |
| 34 | } |
| 35 | if err := reg.Upsert(registry.Route{ |
| 36 | Host: "go.tito.io", Kind: "service", Account: "tito", App: "go", |
| 37 | Addr: golive.Listener.Addr().String(), Status: "ready", |
| 38 | }); err != nil { |
| 39 | t.Fatal(err) |
| 40 | } |
| 41 | |
| 42 | store := release.NewDirStore(t.TempDir()) |
| 43 | if _, _, err := domains.AttachClaim(ctx, store, domains.Claim{ |
| 44 | Schema: 1, Host: "ti.to", Account: "tito", App: "classic", |
| 45 | Route: "ti.to", CreatedAt: "2026-09-03T00:00:00Z", |
| 46 | }); err != nil { |
| 47 | t.Fatal(err) |
| 48 | } |
| 49 | |
| 50 | e, err := New(reg, nil) |
| 51 | if err != nil { |
| 52 | t.Fatal(err) |
| 53 | } |
| 54 | srv := httptest.NewServer(e) |
| 55 | defer srv.Close() |
| 56 | |
| 57 | // Before the flip: everything is classic. |
| 58 | if _, body := getHostPath(t, srv.URL, "ti.to", "/paulca/awesomeconf"); body != "classic" { |
| 59 | t.Fatalf("before the flip: body = %q, want classic", body) |
| 60 | } |
| 61 | |
| 62 | fpBefore, err := reg.Fingerprint() |
| 63 | if err != nil { |
| 64 | t.Fatal(err) |
| 65 | } |
| 66 | |
| 67 | // The flip: Tito publishes its map, the pass folds it, the edge reloads. |
| 68 | if _, err := domains.SetClaimPaths(ctx, store, "ti.to", "tito", "classic", |
| 69 | map[string]string{"paulca": "go.tito.io"}); err != nil { |
| 70 | t.Fatal(err) |
| 71 | } |
| 72 | if err := domains.ReconcileAliases(ctx, store, reg, time.Now, nil, nil); err != nil { |
| 73 | t.Fatal(err) |
| 74 | } |
| 75 | fpAfter, err := reg.Fingerprint() |
| 76 | if err != nil { |
| 77 | t.Fatal(err) |
| 78 | } |
| 79 | if fpBefore == fpAfter { |
| 80 | t.Fatal("fingerprint did not move across a flip — the edge's watcher would never reload") |
| 81 | } |
| 82 | if err := e.Reload(); err != nil { |
| 83 | t.Fatal(err) |
| 84 | } |
| 85 | |
| 86 | // After the flip: that account is on Go, its neighbours are not. |
| 87 | if _, body := getHostPath(t, srv.URL, "ti.to", "/paulca/awesomeconf"); body != "go" { |
| 88 | t.Fatalf("after the flip: body = %q, want go", body) |
| 89 | } |
| 90 | if _, body := getHostPath(t, srv.URL, "ti.to", "/someoneelse/event"); body != "classic" { |
| 91 | t.Fatalf("after the flip: a neighbouring account moved too, body = %q", body) |
| 92 | } |
| 93 | if _, body := getHostPath(t, srv.URL, "ti.to", "/paulcarson"); body != "classic" { |
| 94 | t.Fatalf("after the flip: a longer account name was dragged along, body = %q", body) |
| 95 | } |
| 96 | |
| 97 | // The rollback: republish without that account. |
| 98 | if _, err := domains.SetClaimPaths(ctx, store, "ti.to", "tito", "classic", nil); err != nil { |
| 99 | t.Fatal(err) |
| 100 | } |
| 101 | if err := domains.ReconcileAliases(ctx, store, reg, time.Now, nil, nil); err != nil { |
| 102 | t.Fatal(err) |
| 103 | } |
| 104 | if err := e.Reload(); err != nil { |
| 105 | t.Fatal(err) |
| 106 | } |
| 107 | if _, body := getHostPath(t, srv.URL, "ti.to", "/paulca/awesomeconf"); body != "classic" { |
| 108 | t.Fatalf("after the rollback: body = %q, want classic", body) |
| 109 | } |
| 110 | rows, err := reg.ListPaths() |
| 111 | if err != nil { |
| 112 | t.Fatal(err) |
| 113 | } |
| 114 | if len(rows) != 0 { |
| 115 | t.Fatalf("after the rollback: %d path rows remain, want 0", len(rows)) |
| 116 | } |
| 117 | } |
| 118 | |
amadan