| 1 | package boot |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "reflect" |
| 7 | "strings" |
| 8 | "sync" |
| 9 | "testing" |
| 10 | |
| 11 | "reasonix/internal/agent" |
| 12 | "reasonix/internal/event" |
| 13 | "reasonix/internal/provider" |
| 14 | ) |
| 15 | |
| 16 | const bootPinnedContextProviderKind = "boot-pinned-context-test" |
| 17 | |
| 18 | var ( |
| 19 | bootPinnedContextProviderOnce sync.Once |
| 20 | bootPinnedContextProviderMu sync.Mutex |
| 21 | bootPinnedContextProviderLive *bootPinnedContextProvider |
| 22 | ) |
| 23 | |
| 24 | type bootPinnedContextProvider struct { |
| 25 | mu sync.Mutex |
| 26 | requests []provider.Request |
| 27 | } |
| 28 | |
| 29 | func (p *bootPinnedContextProvider) Name() string { return bootPinnedContextProviderKind } |
| 30 | |
| 31 | func (p *bootPinnedContextProvider) Stream(_ context.Context, req provider.Request) (<-chan provider.Chunk, error) { |
| 32 | p.mu.Lock() |
| 33 | p.requests = append(p.requests, req) |
| 34 | p.mu.Unlock() |
| 35 | ch := make(chan provider.Chunk, 2) |
| 36 | ch <- provider.Chunk{Type: provider.ChunkText, Text: "ok"} |
| 37 | ch <- provider.Chunk{Type: provider.ChunkDone} |
| 38 | close(ch) |
| 39 | return ch, nil |
| 40 | } |
| 41 | |
| 42 | func registerBootPinnedContextProvider() { |
| 43 | bootPinnedContextProviderOnce.Do(func() { |
| 44 | provider.Register(bootPinnedContextProviderKind, func(provider.Config) (provider.Provider, error) { |
| 45 | bootPinnedContextProviderMu.Lock() |
| 46 | defer bootPinnedContextProviderMu.Unlock() |
| 47 | if bootPinnedContextProviderLive == nil { |
| 48 | return nil, errors.New("boot pinned-context provider is not installed") |
| 49 | } |
| 50 | return bootPinnedContextProviderLive, nil |
| 51 | }) |
| 52 | }) |
| 53 | } |
| 54 | |
| 55 | func useBootPinnedContextProvider(t *testing.T, p *bootPinnedContextProvider) { |
| 56 | t.Helper() |
| 57 | bootPinnedContextProviderMu.Lock() |
| 58 | bootPinnedContextProviderLive = p |
| 59 | bootPinnedContextProviderMu.Unlock() |
| 60 | t.Cleanup(func() { |
| 61 | bootPinnedContextProviderMu.Lock() |
| 62 | if bootPinnedContextProviderLive == p { |
| 63 | bootPinnedContextProviderLive = nil |
| 64 | } |
| 65 | bootPinnedContextProviderMu.Unlock() |
| 66 | }) |
| 67 | } |
| 68 | |
| 69 | func TestBuildInjectsPinnedContextOnceWithStablePrefix(t *testing.T) { |
| 70 | isolateConfigHome(t) |
| 71 | dir := robustTempDir(t) |
| 72 | t.Chdir(dir) |
| 73 | registerBootPinnedContextProvider() |
| 74 | recorder := &bootPinnedContextProvider{} |
| 75 | useBootPinnedContextProvider(t, recorder) |
| 76 | writeFile(t, dir, "reasonix.toml", ` |
| 77 | default_model = "test-model" |
| 78 | |
| 79 | [agent] |
| 80 | system_prompt = "BASE" |
| 81 | |
| 82 | [[providers]] |
| 83 | name = "test-model" |
| 84 | kind = "boot-pinned-context-test" |
| 85 | model = "x" |
| 86 | `) |
| 87 | approveWorkspace(t, dir) |
| 88 | |
| 89 | loaderCalls := 0 |
| 90 | ctrl, err := Build(context.Background(), Options{ |
| 91 | Sink: event.Discard, |
| 92 | PinnedContextLoader: func(context.Context, string) (agent.PinnedContextSnapshot, error) { |
| 93 | loaderCalls++ |
| 94 | return agent.PinnedContextSnapshot{Files: []agent.PinnedContextFile{{Path: "a.md", Content: "A"}}}, nil |
| 95 | }, |
| 96 | }) |
| 97 | if err != nil { |
| 98 | t.Fatalf("Build: %v", err) |
| 99 | } |
| 100 | defer ctrl.Close() |
| 101 | ctrl.EnsureSessionPath() |
| 102 | if err := ctrl.Run(context.Background(), "first"); err != nil { |
| 103 | t.Fatalf("first run: %v", err) |
| 104 | } |
| 105 | if err := ctrl.Run(context.Background(), "second"); err != nil { |
| 106 | t.Fatalf("second run: %v", err) |
| 107 | } |
| 108 | |
| 109 | recorder.mu.Lock() |
| 110 | requests := append([]provider.Request(nil), recorder.requests...) |
| 111 | recorder.mu.Unlock() |
| 112 | if len(requests) != 2 { |
| 113 | t.Fatalf("provider requests = %d, want 2", len(requests)) |
| 114 | } |
| 115 | if len(requests[0].Messages) == 0 { |
| 116 | t.Fatal("first provider request has no messages") |
| 117 | } |
| 118 | if first := requests[0].Messages[0].Content; !strings.HasPrefix(first, "BASE") || strings.Contains(first, "<pinned_context_revision") { |
| 119 | t.Fatalf("leading system was rewritten with pinned context: %q", first) |
| 120 | } |
| 121 | if loaderCalls != 2 { |
| 122 | t.Fatalf("loader calls = %d", loaderCalls) |
| 123 | } |
| 124 | if len(requests[1].Messages) < len(requests[0].Messages) || |
| 125 | !reflect.DeepEqual(requests[1].Messages[:len(requests[0].Messages)], requests[0].Messages) { |
| 126 | t.Fatal("second provider request did not preserve the first request as an exact prefix") |
| 127 | } |
| 128 | revisions := 0 |
| 129 | for _, message := range ctrl.History() { |
| 130 | if agent.IsPinnedContextRevision(message) { |
| 131 | revisions++ |
| 132 | } |
| 133 | } |
| 134 | if revisions != 1 { |
| 135 | t.Fatalf("revision messages = %d, want 1", revisions) |
| 136 | } |
| 137 | } |
| 138 |