| 1 | package agent |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "testing" |
| 6 | |
| 7 | "reasonix/internal/event" |
| 8 | "reasonix/internal/provider" |
| 9 | "reasonix/internal/tool" |
| 10 | ) |
| 11 | |
| 12 | type cacheDiagProvider struct { |
| 13 | chunks [][]provider.Chunk |
| 14 | calls int |
| 15 | } |
| 16 | |
| 17 | func (p *cacheDiagProvider) Name() string { return "cache-diag" } |
| 18 | |
| 19 | func (p *cacheDiagProvider) Stream(_ context.Context, _ provider.Request) (<-chan provider.Chunk, error) { |
| 20 | chunks := p.chunks[p.calls] |
| 21 | p.calls++ |
| 22 | ch := make(chan provider.Chunk, len(chunks)) |
| 23 | for _, chunk := range chunks { |
| 24 | ch <- chunk |
| 25 | } |
| 26 | close(ch) |
| 27 | return ch, nil |
| 28 | } |
| 29 | |
| 30 | func TestRunPopulatesCacheDiagnosticsOnUsageEvents(t *testing.T) { |
| 31 | prov := &cacheDiagProvider{chunks: [][]provider.Chunk{ |
| 32 | { |
| 33 | {Type: provider.ChunkText, Text: "first"}, |
| 34 | {Type: provider.ChunkUsage, Usage: &provider.Usage{ |
| 35 | PromptTokens: 100, CompletionTokens: 10, TotalTokens: 110, |
| 36 | CacheHitTokens: 0, CacheMissTokens: 100, |
| 37 | }}, |
| 38 | }, |
| 39 | { |
| 40 | {Type: provider.ChunkText, Text: "second"}, |
| 41 | {Type: provider.ChunkUsage, Usage: &provider.Usage{ |
| 42 | PromptTokens: 100, CompletionTokens: 10, TotalTokens: 110, |
| 43 | CacheHitTokens: 80, CacheMissTokens: 20, |
| 44 | }}, |
| 45 | }, |
| 46 | }} |
| 47 | reg := tool.NewRegistry() |
| 48 | var diagnostics []*event.CacheDiagnostics |
| 49 | sink := event.FuncSink(func(e event.Event) { |
| 50 | if e.Kind == event.Usage { |
| 51 | diagnostics = append(diagnostics, e.CacheDiagnostics) |
| 52 | } |
| 53 | }) |
| 54 | session := NewSession("stable system") |
| 55 | session.IncrementRewrite() |
| 56 | a := New(prov, reg, session, Options{}, sink) |
| 57 | |
| 58 | if err := a.Run(context.Background(), "one"); err != nil { |
| 59 | t.Fatalf("first Run: %v", err) |
| 60 | } |
| 61 | reg.Add(fakeTool{name: "read_file", readOnly: true}) |
| 62 | if err := a.Run(context.Background(), "two"); err != nil { |
| 63 | t.Fatalf("second Run: %v", err) |
| 64 | } |
| 65 | |
| 66 | if len(diagnostics) != 2 { |
| 67 | t.Fatalf("got %d usage diagnostics, want 2", len(diagnostics)) |
| 68 | } |
| 69 | first, second := diagnostics[0], diagnostics[1] |
| 70 | if first == nil || second == nil { |
| 71 | t.Fatalf("diagnostics should be populated on every usage event: first=%v second=%v", first, second) |
| 72 | } |
| 73 | if first.PrefixChanged { |
| 74 | t.Fatalf("first usage should not report a changed prefix: %+v", first) |
| 75 | } |
| 76 | if first.CacheMissTokens != 100 || first.CacheHitTokens != 0 { |
| 77 | t.Fatalf("first cache tokens = hit %d miss %d, want hit 0 miss 100", first.CacheHitTokens, first.CacheMissTokens) |
| 78 | } |
| 79 | if !second.PrefixChanged { |
| 80 | t.Fatalf("second usage should report the tool prefix change: %+v", second) |
| 81 | } |
| 82 | if len(second.PrefixChangeReasons) != 1 || second.PrefixChangeReasons[0] != "tools" { |
| 83 | t.Fatalf("second change reasons = %v, want [tools]", second.PrefixChangeReasons) |
| 84 | } |
| 85 | if second.CacheHitTokens != 80 || second.CacheMissTokens != 20 { |
| 86 | t.Fatalf("second cache tokens = hit %d miss %d, want hit 80 miss 20", second.CacheHitTokens, second.CacheMissTokens) |
| 87 | } |
| 88 | if first.ToolsHash == second.ToolsHash { |
| 89 | t.Fatalf("tool hash should change after registering a tool: %q", first.ToolsHash) |
| 90 | } |
| 91 | } |
| 92 |