| 1 | package anthropic |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "io" |
| 7 | "net/http" |
| 8 | "reasonix/internal/provider" |
| 9 | "strings" |
| 10 | "testing" |
| 11 | ) |
| 12 | |
| 13 | func TestThinkingStreamPreservesInitialBlocksAndSplitSignatures(t *testing.T) { |
| 14 | sse := `data: {"type":"content_block_start","index":0,"content_block":{"type":"thinking","thinking":"initial","signature":"prefix"}} |
| 15 | data: {"type":"content_block_delta","index":0,"delta":{"type":"thinking_delta","thinking":" tail"}} |
| 16 | data: {"type":"content_block_delta","index":0,"delta":{"type":"signature_delta","signature":"-a"}} |
| 17 | data: {"type":"content_block_delta","index":0,"delta":{"type":"signature_delta","signature":"-b"}} |
| 18 | data: {"type":"content_block_stop","index":0} |
| 19 | data: {"type":"content_block_start","index":1,"content_block":{"type":"thinking","thinking":"","signature":"empty-proof"}} |
| 20 | data: {"type":"content_block_stop","index":1} |
| 21 | data: {"type":"content_block_start","index":2,"content_block":{"type":"redacted_thinking","data":"redacted-proof"}} |
| 22 | data: {"type":"content_block_stop","index":2} |
| 23 | data: {"type":"message_delta","delta":{"stop_reason":"end_turn"}} |
| 24 | data: {"type":"message_stop"} |
| 25 | ` |
| 26 | c := &client{name: "test", thinking: "adaptive"} |
| 27 | ch := make(chan provider.Chunk) |
| 28 | go c.readStream(context.Background(), &http.Response{Body: io.NopCloser(strings.NewReader(sse))}, ch) |
| 29 | var text, signature string |
| 30 | var blocks []provider.ThinkingBlock |
| 31 | for chunk := range ch { |
| 32 | if chunk.Err != nil { |
| 33 | t.Fatal(chunk.Err) |
| 34 | } |
| 35 | text += chunk.Text |
| 36 | if chunk.Signature != "" { |
| 37 | signature = chunk.Signature |
| 38 | } |
| 39 | if chunk.ThinkingBlock != nil { |
| 40 | blocks = append(blocks, *chunk.ThinkingBlock) |
| 41 | } |
| 42 | } |
| 43 | if text != "initial tail" || len(blocks) != 3 || blocks[0].Signature != "prefix-a-b" || signature != "empty-proof" { |
| 44 | t.Fatalf("text=%q signature=%q blocks=%+v", text, signature, blocks) |
| 45 | } |
| 46 | wire := c.replayReasoningBlocks(provider.Message{ThinkingBlocks: blocks}) |
| 47 | encoded, err := json.Marshal(wire) |
| 48 | if err != nil || !strings.Contains(string(encoded), `"signature":"empty-proof","thinking":""`) || !strings.Contains(string(encoded), `"data":"redacted-proof"`) { |
| 49 | t.Fatalf("replay=%s err=%v", encoded, err) |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | func TestThinkingUnclosedBlockRemainsIncomplete(t *testing.T) { |
| 54 | for _, terminal := range []string{"", "data: {\"type\":\"message_stop\"}\n"} { |
| 55 | sse := "data: {\"type\":\"content_block_start\",\"index\":0,\"content_block\":{\"type\":\"thinking\",\"thinking\":\"partial\"}}\ndata: {\"type\":\"message_delta\",\"delta\":{\"stop_reason\":\"tool_use\"}}\n" + terminal |
| 56 | c := &client{name: "test"} |
| 57 | ch := make(chan provider.Chunk) |
| 58 | go c.readStream(context.Background(), &http.Response{Body: io.NopCloser(strings.NewReader(sse))}, ch) |
| 59 | var state provider.ReasoningState |
| 60 | for chunk := range ch { |
| 61 | if chunk.ReasoningState != "" { |
| 62 | state = chunk.ReasoningState |
| 63 | } |
| 64 | } |
| 65 | if state != provider.ReasoningIncomplete { |
| 66 | t.Fatalf("state=%q", state) |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | func TestAdaptiveReplayPreservesHistoricalProofAcrossEffortChange(t *testing.T) { |
| 72 | c := &client{thinking: "adaptive", effort: "disabled"} |
| 73 | msg := provider.Message{Role: provider.RoleAssistant, ReasoningContent: "original", ReasoningSignature: "proof"} |
| 74 | block, ok := c.replayReasoningBlock(msg) |
| 75 | if !ok || block.Thinking != "original" || block.Signature != "proof" { |
| 76 | t.Fatalf("historical proof changed: %+v", block) |
| 77 | } |
| 78 | } |
| 79 |