| 1 | package control |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "strings" |
| 7 | "testing" |
| 8 | |
| 9 | "reasonix/internal/event" |
| 10 | "reasonix/internal/provider" |
| 11 | ) |
| 12 | |
| 13 | type sessionTitleProviderStub struct { |
| 14 | out string |
| 15 | reasoning string |
| 16 | finishReason string |
| 17 | err error |
| 18 | requests []provider.Request |
| 19 | } |
| 20 | |
| 21 | type sessionTitleResolverStub struct { |
| 22 | descriptors []provider.Descriptor |
| 23 | provider provider.Provider |
| 24 | resolve func(provider.Selection) (provider.Provider, error) |
| 25 | selections []provider.Selection |
| 26 | } |
| 27 | |
| 28 | func (r *sessionTitleResolverStub) Catalog() []provider.Descriptor { |
| 29 | return append([]provider.Descriptor(nil), r.descriptors...) |
| 30 | } |
| 31 | |
| 32 | func (r *sessionTitleResolverStub) Resolve(selection provider.Selection) (provider.Provider, error) { |
| 33 | r.selections = append(r.selections, selection) |
| 34 | if r.resolve != nil { |
| 35 | return r.resolve(selection) |
| 36 | } |
| 37 | return r.provider, nil |
| 38 | } |
| 39 | |
| 40 | func (p *sessionTitleProviderStub) ReasoningCapability() provider.ReasoningCapability { |
| 41 | return provider.ReasoningOptions("", "low", "high") |
| 42 | } |
| 43 | |
| 44 | func (p *sessionTitleProviderStub) Name() string { return "session-title-stub" } |
| 45 | |
| 46 | func (p *sessionTitleProviderStub) Stream(_ context.Context, req provider.Request) (<-chan provider.Chunk, error) { |
| 47 | p.requests = append(p.requests, req) |
| 48 | if p.err != nil { |
| 49 | return nil, p.err |
| 50 | } |
| 51 | ch := make(chan provider.Chunk, 4) |
| 52 | if p.reasoning != "" { |
| 53 | ch <- provider.Chunk{Type: provider.ChunkReasoning, Text: p.reasoning} |
| 54 | } |
| 55 | if p.out != "" { |
| 56 | ch <- provider.Chunk{Type: provider.ChunkText, Text: p.out} |
| 57 | } |
| 58 | if p.finishReason != "" { |
| 59 | ch <- provider.Chunk{Type: provider.ChunkUsage, Usage: &provider.Usage{FinishReason: p.finishReason}} |
| 60 | } |
| 61 | ch <- provider.Chunk{Type: provider.ChunkDone} |
| 62 | close(ch) |
| 63 | return ch, nil |
| 64 | } |
| 65 | |
| 66 | func sessionTitleTestController(t *testing.T, prov provider.Provider, sink event.Sink) *Controller { |
| 67 | return newOwnedTestController(t, Options{ |
| 68 | ModelRef: "test/title-model", |
| 69 | Sink: sink, |
| 70 | ProviderResolver: &provider.StaticResolver{ |
| 71 | Descriptors: []provider.Descriptor{{Ref: "test/title-model"}}, |
| 72 | Providers: map[string]provider.Provider{"test/title-model": prov}, |
| 73 | }, |
| 74 | }) |
| 75 | } |
| 76 | |
| 77 | func TestGenerateSessionTitleUsesBoundedNoToolRequest(t *testing.T) { |
| 78 | prov := &sessionTitleProviderStub{out: " “Fix login redirect loop” "} |
| 79 | ctrl := sessionTitleTestController(t, prov, event.Discard) |
| 80 | title, err := ctrl.GenerateSessionTitle(context.Background(), "User: login redirects forever") |
| 81 | if err != nil { |
| 82 | t.Fatalf("GenerateSessionTitle: %v", err) |
| 83 | } |
| 84 | if title != "Fix login redirect loop" { |
| 85 | t.Fatalf("title = %q", title) |
| 86 | } |
| 87 | if len(prov.requests) != 1 { |
| 88 | t.Fatalf("requests = %d", len(prov.requests)) |
| 89 | } |
| 90 | req := prov.requests[0] |
| 91 | if len(req.Tools) != 0 || req.MaxTokens != 512 || req.EffortOverride != "low" || len(req.Messages) != 2 { |
| 92 | t.Fatalf("request = %+v", req) |
| 93 | } |
| 94 | if req.Messages[0].Content != sessionTitleSystemPrompt { |
| 95 | t.Fatal("unexpected system prompt") |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | func TestGenerateSessionTitleDisablesAdvertisedReasoning(t *testing.T) { |
| 100 | thinking := &sessionTitleProviderStub{reasoning: "The transcript is about", finishReason: "length"} |
| 101 | disabled := &sessionTitleProviderStub{out: "Short title", finishReason: "stop"} |
| 102 | resolver := &sessionTitleResolverStub{ |
| 103 | descriptors: []provider.Descriptor{{ |
| 104 | Ref: "test/title-model", |
| 105 | Efforts: []string{"disabled", "high", "max"}, |
| 106 | }}, |
| 107 | resolve: func(selection provider.Selection) (provider.Provider, error) { |
| 108 | if selection.Effort != nil && *selection.Effort == "disabled" { |
| 109 | return disabled, nil |
| 110 | } |
| 111 | return thinking, nil |
| 112 | }, |
| 113 | } |
| 114 | ctrl := newOwnedTestController(t, Options{ |
| 115 | ModelRef: "test/title-model", |
| 116 | Sink: event.Discard, |
| 117 | ProviderResolver: resolver, |
| 118 | }) |
| 119 | if _, err := ctrl.GenerateSessionTitle(context.Background(), "User: diagnose an empty generated title"); err != nil { |
| 120 | t.Fatalf("GenerateSessionTitle: %v", err) |
| 121 | } |
| 122 | if len(resolver.selections) != 1 { |
| 123 | t.Fatalf("provider resolutions = %d, want 1", len(resolver.selections)) |
| 124 | } |
| 125 | effort := resolver.selections[0].Effort |
| 126 | if effort == nil || *effort != "disabled" { |
| 127 | t.Fatalf("title effort = %v, want disabled", effort) |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | func TestGenerateSessionTitleForModelUsesTargetModelWithoutMutatingControllerSelection(t *testing.T) { |
| 132 | active := &sessionTitleProviderStub{out: "active title"} |
| 133 | target := &sessionTitleProviderStub{out: "target title"} |
| 134 | resolver := &sessionTitleResolverStub{ |
| 135 | descriptors: []provider.Descriptor{{Ref: "active/model"}, {Ref: "target/model"}}, |
| 136 | resolve: func(selection provider.Selection) (provider.Provider, error) { |
| 137 | if selection.Ref == "target/model" { |
| 138 | return target, nil |
| 139 | } |
| 140 | return active, nil |
| 141 | }, |
| 142 | } |
| 143 | ctrl := newOwnedTestController(t, Options{ |
| 144 | ModelRef: "active/model", |
| 145 | Sink: event.Discard, |
| 146 | ProviderResolver: resolver, |
| 147 | }) |
| 148 | title, err := ctrl.GenerateSessionTitleForModel(t.Context(), "target/model", "cold target transcript") |
| 149 | if err != nil || title != "target title" { |
| 150 | t.Fatalf("GenerateSessionTitleForModel = %q, %v", title, err) |
| 151 | } |
| 152 | if len(resolver.selections) != 1 || resolver.selections[0].Ref != "target/model" { |
| 153 | t.Fatalf("provider selections = %+v", resolver.selections) |
| 154 | } |
| 155 | if len(active.requests) != 0 || len(target.requests) != 1 { |
| 156 | t.Fatalf("active requests = %d, target requests = %d", len(active.requests), len(target.requests)) |
| 157 | } |
| 158 | if ctrl.ModelRef() != "active/model" { |
| 159 | t.Fatalf("controller model changed to %q", ctrl.ModelRef()) |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | func TestGenerateSessionTitleBoundsTranscriptAndOutput(t *testing.T) { |
| 164 | prov := &sessionTitleProviderStub{out: strings.Repeat("long title ", 20)} |
| 165 | ctrl := sessionTitleTestController(t, prov, event.Discard) |
| 166 | title, err := ctrl.GenerateSessionTitle(context.Background(), strings.Repeat("界", sessionTitleMaxTranscriptRunes+100)) |
| 167 | if err != nil { |
| 168 | t.Fatalf("GenerateSessionTitle: %v", err) |
| 169 | } |
| 170 | if got := len([]rune(prov.requests[0].Messages[1].Content)); got != sessionTitleMaxTranscriptRunes { |
| 171 | t.Fatalf("transcript runes = %d", got) |
| 172 | } |
| 173 | if got := len([]rune(title)); got > sessionTitleMaxRunes+1 { |
| 174 | t.Fatalf("title runes = %d: %q", got, title) |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | func TestGenerateSessionTitleRejectsMissingInputsAndProviderFailures(t *testing.T) { |
| 179 | if _, err := sessionTitleTestController(t, &sessionTitleProviderStub{}, event.Discard).GenerateSessionTitle(context.Background(), " "); err == nil { |
| 180 | t.Fatal("empty transcript should fail") |
| 181 | } |
| 182 | if _, err := newOwnedTestController(t, Options{ModelRef: "test/title-model"}).GenerateSessionTitle(context.Background(), "hello"); err == nil { |
| 183 | t.Fatal("missing resolver should fail") |
| 184 | } |
| 185 | ctrl := sessionTitleTestController(t, &sessionTitleProviderStub{err: errors.New("boom")}, event.Discard) |
| 186 | if _, err := ctrl.GenerateSessionTitle(context.Background(), "hello"); err == nil || !strings.Contains(err.Error(), "boom") { |
| 187 | t.Fatalf("provider error = %v", err) |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | func TestCleanSessionTitle(t *testing.T) { |
| 192 | tests := map[string]string{ |
| 193 | `"Hello"`: "Hello", |
| 194 | " spaced out ": "spaced out", |
| 195 | "Trailing punctuation!": "Trailing punctuation!", |
| 196 | "‘中文会话标题’": "中文会话标题", |
| 197 | } |
| 198 | for input, want := range tests { |
| 199 | if got := cleanSessionTitle(input); got != want { |
| 200 | t.Errorf("cleanSessionTitle(%q) = %q, want %q", input, got, want) |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 |