| 1 | package plugin |
| 2 | |
| 3 | import ( |
| 4 | "encoding/json" |
| 5 | "os" |
| 6 | "path/filepath" |
| 7 | "testing" |
| 8 | "time" |
| 9 | ) |
| 10 | |
| 11 | // TestProfileCacheIsolation pins the cross-version contract from the MCP 2026 |
| 12 | // PR plan: the legacy profile keeps the shared v2 file; capability-declaring |
| 13 | // profiles write an isolated v3 file and treat the legacy file as a miss, so |
| 14 | // catalogs negotiated under different client capabilities never masquerade as |
| 15 | // each other. |
| 16 | func TestProfileCacheIsolation(t *testing.T) { |
| 17 | dir := redirectCache(t) |
| 18 | spec := sampleSpec() |
| 19 | key := SchemaCacheKey(spec) |
| 20 | |
| 21 | legacy := CachedSchema{ |
| 22 | CacheKey: key, |
| 23 | Capabilities: map[string]bool{"tools": true}, |
| 24 | Tools: []CachedTool{{Name: "legacy_tool", Schema: []byte(`{"type":"object"}`)}}, |
| 25 | } |
| 26 | if err := SaveCachedSchema(spec.Name, legacy); err != nil { |
| 27 | t.Fatalf("save legacy: %v", err) |
| 28 | } |
| 29 | |
| 30 | if _, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileInteractive); ok { |
| 31 | t.Fatal("interactive profile read the legacy shared cache; must be a miss") |
| 32 | } |
| 33 | if _, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileDesktopApps); ok { |
| 34 | t.Fatal("desktop profile read the legacy shared cache; must be a miss") |
| 35 | } |
| 36 | if cs, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileCore); !ok || len(cs.Tools) != 1 { |
| 37 | t.Fatal("core profile must keep reading the legacy shared cache") |
| 38 | } |
| 39 | |
| 40 | enhanced := CachedSchema{ |
| 41 | CacheKey: key, |
| 42 | Capabilities: map[string]bool{"tools": true}, |
| 43 | Tools: []CachedTool{{ |
| 44 | Name: "app_tool", Schema: []byte(`{"type":"object"}`), |
| 45 | Visibility: []string{"model", "app"}, UIResourceURI: "ui://app/index.html", |
| 46 | }}, |
| 47 | } |
| 48 | if err := SaveCachedSchemaForProfile(HostProfileDesktopApps, spec.Name, enhanced); err != nil { |
| 49 | t.Fatalf("save enhanced: %v", err) |
| 50 | } |
| 51 | |
| 52 | files, err := filepath.Glob(filepath.Join(dir, "mcp", "my-server*")) |
| 53 | if err != nil { |
| 54 | t.Fatal(err) |
| 55 | } |
| 56 | if len(files) != 2 { |
| 57 | t.Fatalf("expected exactly legacy + enhanced cache files, got %v", files) |
| 58 | } |
| 59 | var sawEnhanced bool |
| 60 | for _, f := range files { |
| 61 | if filepath.Base(f) == "my-server.json" { |
| 62 | continue |
| 63 | } |
| 64 | sawEnhanced = true |
| 65 | b, err := os.ReadFile(f) |
| 66 | if err != nil { |
| 67 | t.Fatal(err) |
| 68 | } |
| 69 | var cs CachedSchema |
| 70 | if err := json.Unmarshal(b, &cs); err != nil { |
| 71 | t.Fatal(err) |
| 72 | } |
| 73 | if cs.Version != enhancedCacheVersion || cs.Profile != HostProfileDesktopApps.String() { |
| 74 | t.Fatalf("enhanced cache version/profile = %d/%q", cs.Version, cs.Profile) |
| 75 | } |
| 76 | } |
| 77 | if !sawEnhanced { |
| 78 | t.Fatal("enhanced cache file not created") |
| 79 | } |
| 80 | |
| 81 | cs, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileDesktopApps) |
| 82 | if !ok || len(cs.Tools) != 1 || cs.Tools[0].Name != "app_tool" { |
| 83 | t.Fatalf("desktop profile cannot load its own enhanced cache: %+v", cs) |
| 84 | } |
| 85 | if !cs.Tools[0].ToolIsModelVisible() { |
| 86 | t.Fatal("model+app visibility must stay model-visible") |
| 87 | } |
| 88 | if cs, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileInteractive); ok { |
| 89 | t.Fatalf("interactive profile read the desktop cache: %+v", cs) |
| 90 | } |
| 91 | if cs, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileCore); !ok || cs.Tools[0].Name != "legacy_tool" { |
| 92 | t.Fatal("legacy writer's cache was disturbed by the enhanced writer") |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | // TestEnhancedCacheFutureVersionIsMiss ensures a newer layout is a miss, not a |
| 97 | // crash or a silent reuse. |
| 98 | func TestEnhancedCacheFutureVersionIsMiss(t *testing.T) { |
| 99 | redirectCache(t) |
| 100 | spec := sampleSpec() |
| 101 | path := cachePathForProfile(spec.Name, HostProfileDesktopApps) |
| 102 | if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil { |
| 103 | t.Fatal(err) |
| 104 | } |
| 105 | future := CachedSchema{ |
| 106 | Version: enhancedCacheVersion + 1, |
| 107 | Profile: HostProfileDesktopApps.String(), |
| 108 | CacheKey: SchemaCacheKey(spec), |
| 109 | Capabilities: map[string]bool{"tools": true}, |
| 110 | Tools: []CachedTool{{Name: "future", Schema: []byte(`{"type":"object"}`)}}, |
| 111 | } |
| 112 | b, err := json.Marshal(future) |
| 113 | if err != nil { |
| 114 | t.Fatal(err) |
| 115 | } |
| 116 | if err := os.WriteFile(path, b, 0o600); err != nil { |
| 117 | t.Fatal(err) |
| 118 | } |
| 119 | if _, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileDesktopApps); ok { |
| 120 | t.Fatal("future cache version must be a miss") |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | // TestEnhancedCacheLegacyToolVisibility pins the default visibility rule: |
| 125 | // a tool with no visibility metadata stays model-visible. |
| 126 | func TestEnhancedCacheLegacyToolVisibility(t *testing.T) { |
| 127 | redirectCache(t) |
| 128 | tool := CachedTool{Name: "plain", Schema: []byte(`{"type":"object"}`)} |
| 129 | if !tool.ToolIsModelVisible() { |
| 130 | t.Fatal("absent visibility must default to model-visible") |
| 131 | } |
| 132 | appOnly := CachedTool{Name: "app-only", Visibility: []string{"app"}} |
| 133 | if appOnly.ToolIsModelVisible() { |
| 134 | t.Fatal("app-only visibility must be hidden from the model catalog") |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | // TestProfileHashStableAndDistinct guards the cache filename identity. |
| 139 | func TestProfileHashStableAndDistinct(t *testing.T) { |
| 140 | interactive := HostProfileInteractive.ProfileCacheHash() |
| 141 | desktop := HostProfileDesktopApps.ProfileCacheHash() |
| 142 | core := HostProfileCore.ProfileCacheHash() |
| 143 | if interactive == desktop || desktop == core || interactive == core { |
| 144 | t.Fatalf("profile hashes collided: %s %s %s", core, interactive, desktop) |
| 145 | } |
| 146 | if HostProfileInteractive.ProfileCacheHash() != interactive { |
| 147 | t.Fatal("profile hash not stable") |
| 148 | } |
| 149 | if len(interactive) != 12 { |
| 150 | t.Fatalf("hash length = %d, want 12", len(interactive)) |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | // TestSaveEnhancedSetsTimestamp ensures LastValidated is stamped exactly once. |
| 155 | func TestSaveEnhancedSetsTimestamp(t *testing.T) { |
| 156 | redirectCache(t) |
| 157 | spec := sampleSpec() |
| 158 | before := time.Now().UTC().Add(-time.Second) |
| 159 | if err := SaveCachedSchemaForProfile(HostProfileInteractive, spec.Name, CachedSchema{ |
| 160 | CacheKey: SchemaCacheKey(spec), |
| 161 | Capabilities: map[string]bool{"tools": true}, |
| 162 | }); err != nil { |
| 163 | t.Fatal(err) |
| 164 | } |
| 165 | cs, ok := LoadCachedSchemaForSpecProfile(spec, HostProfileInteractive) |
| 166 | if !ok { |
| 167 | t.Fatal("load after save failed") |
| 168 | } |
| 169 | if cs.LastValidated.Before(before) { |
| 170 | t.Fatalf("LastValidated = %v, want >= %v", cs.LastValidated, before) |
| 171 | } |
| 172 | } |
| 173 |