feat(saju-lab): interpret/pipeline.py — Claude 호출 + reroll 1회 (8 tests)
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145
saju-lab/app/interpret/pipeline.py
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145
saju-lab/app/interpret/pipeline.py
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"""사주 + 궁합 해석 파이프라인 — Claude Sonnet 호출 + reroll 1회.
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tarot-lab/app/pipeline.py 패턴 재활용.
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"""
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import json
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import logging
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import time
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from typing import Any, Dict
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import httpx
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from ..config import (
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ANTHROPIC_API_KEY,
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SAJU_MODEL,
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SAJU_COST_INPUT_PER_M,
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SAJU_COST_OUTPUT_PER_M,
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SAJU_TIMEOUT_SEC,
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)
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logger = logging.getLogger("saju-lab.pipeline")
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from .prompt import SAJU_SYSTEM_PROMPT, COMPAT_SYSTEM_PROMPT, build_saju_user_message, build_compat_user_message
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from .schema import validate_saju_interpretation, validate_compat_interpretation
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API_URL = "https://api.anthropic.com/v1/messages"
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class SajuError(Exception):
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pass
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def calc_cost(tokens_in: int, tokens_out: int) -> float:
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return (
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tokens_in / 1_000_000 * SAJU_COST_INPUT_PER_M
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+ tokens_out / 1_000_000 * SAJU_COST_OUTPUT_PER_M
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)
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def _strip_codeblock(text: str) -> str:
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t = text.strip()
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if t.startswith("```"):
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t = t.strip("`")
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if t.startswith("json"):
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t = t[4:]
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t = t.strip()
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return t
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def _extract_json(raw: str) -> dict:
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cleaned = _strip_codeblock(raw)
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try:
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return json.loads(cleaned)
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except json.JSONDecodeError:
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start, end = cleaned.find("{"), cleaned.rfind("}")
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if start >= 0 and end > start:
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try:
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return json.loads(cleaned[start : end + 1])
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except json.JSONDecodeError:
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pass
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raise
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async def _call_claude(system_prompt: str, user_text: str, feedback: str = "") -> tuple[dict, dict, str]:
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if not ANTHROPIC_API_KEY:
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raise SajuError("ANTHROPIC_API_KEY missing")
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if feedback:
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user_text = f"이전 응답이 다음 이유로 거절됨: {feedback}\n올바른 스키마(시스템 지침)로 다시 응답.\n\n{user_text}"
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payload = {
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"model": SAJU_MODEL,
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"max_tokens": 2400,
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"system": [{"type": "text", "text": system_prompt,
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"cache_control": {"type": "ephemeral"}}],
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"messages": [{"role": "user", "content": [{"type": "text", "text": user_text}]}],
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}
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headers = {
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"x-api-key": ANTHROPIC_API_KEY,
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"anthropic-version": "2023-06-01",
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"anthropic-beta": "prompt-caching-2024-07-31",
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"content-type": "application/json",
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}
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started = time.monotonic()
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async with httpx.AsyncClient(timeout=SAJU_TIMEOUT_SEC) as client:
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r = await client.post(API_URL, headers=headers, json=payload)
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r.raise_for_status()
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resp = r.json()
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latency_ms = int((time.monotonic() - started) * 1000)
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raw_text = "".join(
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b.get("text", "") for b in resp.get("content", []) if b.get("type") == "text"
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)
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usage = resp.get("usage", {}) or {}
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tokens_in = int(usage.get("input_tokens", 0) or 0)
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tokens_out = int(usage.get("output_tokens", 0) or 0)
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logger.info("saju claude call: latency=%dms, in=%d, out=%d", latency_ms, tokens_in, tokens_out)
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parsed = _extract_json(raw_text)
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meta = {"tokens_in": tokens_in, "tokens_out": tokens_out, "latency_ms": latency_ms}
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return parsed, meta, raw_text
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async def _interpret_loop(system_prompt: str, user_text: str, validate_fn) -> Dict[str, Any]:
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total_in, total_out, total_latency = 0, 0, 0
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last_error = ""
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for attempt in range(2):
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try:
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parsed, meta, _raw = await _call_claude(system_prompt, user_text, feedback=last_error)
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except httpx.HTTPError as e:
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raise SajuError(f"Claude HTTP error: {e}") from e
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except json.JSONDecodeError as e:
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last_error = f"JSON 파싱 실패: {e}"
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continue
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total_in += meta["tokens_in"]
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total_out += meta["tokens_out"]
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total_latency += meta["latency_ms"]
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ok, err = validate_fn(parsed)
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if ok:
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return {
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"interpretation_json": parsed,
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"model": SAJU_MODEL,
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"tokens_in": total_in,
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"tokens_out": total_out,
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"cost_usd": calc_cost(total_in, total_out),
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"latency_ms": total_latency,
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"reroll_count": attempt,
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}
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last_error = err
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raise SajuError(f"검증 실패 (reroll 2회): {last_error}")
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async def interpret_saju(saju: dict, analysis: dict, daeun: list, current_year: int) -> Dict[str, Any]:
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user_text = build_saju_user_message(saju, analysis, daeun, current_year)
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return await _interpret_loop(SAJU_SYSTEM_PROMPT, user_text, validate_saju_interpretation)
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async def interpret_compat(
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saju_a: dict, saju_b: dict,
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analysis_a: dict, analysis_b: dict,
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score: int, breakdown: dict,
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) -> Dict[str, Any]:
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user_text = build_compat_user_message(
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saju_a, saju_b, analysis_a, analysis_b, score, breakdown,
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)
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return await _interpret_loop(COMPAT_SYSTEM_PROMPT, user_text, validate_compat_interpretation)
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154
saju-lab/tests/test_pipeline.py
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154
saju-lab/tests/test_pipeline.py
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import json
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import pytest
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import respx
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import httpx
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from app.interpret import pipeline
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from app.interpret.pipeline import SajuError
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@pytest.fixture(autouse=True)
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def _patch_key(monkeypatch):
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monkeypatch.setattr(pipeline, "ANTHROPIC_API_KEY", "test-key")
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SAJU_ITEM_KEYS = [
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"기질", "오행밸런스", "지지상호작용", "신살영향",
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"재물운", "직업적성", "애정운", "건강운",
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"현재대운", "올해세운", "인생황금기", "종합조언",
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]
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def _valid_saju_response():
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items = []
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for k in SAJU_ITEM_KEYS:
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items.append({
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"key": k, "title": "...", "content": "...",
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"evidence": {"saju_element": "...", "reasoning": "..."}
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})
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return {
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"items": items,
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"summary": "...",
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"advice": "...",
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"warning": None,
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"confidence": "medium",
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}
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def _valid_compat_response():
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return {
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"summary": "...",
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"strengths": [
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{"title": "오행 상생", "explanation": "...", "evidence": "..."},
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{"title": "...", "explanation": "...", "evidence": "..."},
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],
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"challenges": [
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{"title": "...", "explanation": "...", "evidence": "..."},
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{"title": "...", "explanation": "...", "evidence": "..."},
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],
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"advice": "...",
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"warning": None,
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"confidence": "high",
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}
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def _claude_envelope(text: str, in_tok=200, out_tok=400):
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return {
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"content": [{"type": "text", "text": text}],
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"usage": {"input_tokens": in_tok, "output_tokens": out_tok},
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}
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@respx.mock
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async def test_saju_interpret_success():
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respx.post("https://api.anthropic.com/v1/messages").mock(
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return_value=httpx.Response(200, json=_claude_envelope(json.dumps(_valid_saju_response())))
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)
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result = await pipeline.interpret_saju(
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saju={"day_stem": "辛"},
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analysis={"element_balance": {"金": 3.0}},
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daeun=[{"age": 10}],
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current_year=2026,
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)
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assert result["reroll_count"] == 0
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assert result["tokens_in"] == 200
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assert result["cost_usd"] > 0
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@respx.mock
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async def test_saju_codeblock_stripped():
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text = "```json\n" + json.dumps(_valid_saju_response()) + "\n```"
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respx.post("https://api.anthropic.com/v1/messages").mock(
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return_value=httpx.Response(200, json=_claude_envelope(text))
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)
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result = await pipeline.interpret_saju(saju={}, analysis={}, daeun=[], current_year=2026)
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assert "interpretation_json" in result
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@respx.mock
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async def test_saju_reroll_then_success():
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valid = json.dumps(_valid_saju_response())
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invalid = json.dumps({"items": [], "summary": "...", "advice": "", "confidence": "medium"})
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respx.post("https://api.anthropic.com/v1/messages").mock(
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side_effect=[
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httpx.Response(200, json=_claude_envelope(invalid)),
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httpx.Response(200, json=_claude_envelope(valid)),
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]
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)
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result = await pipeline.interpret_saju(saju={}, analysis={}, daeun=[], current_year=2026)
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assert result["reroll_count"] == 1
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@respx.mock
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async def test_saju_reroll_fail_raises():
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invalid = json.dumps({"items": [], "summary": "...", "advice": "", "confidence": "medium"})
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respx.post("https://api.anthropic.com/v1/messages").mock(
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return_value=httpx.Response(200, json=_claude_envelope(invalid))
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)
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with pytest.raises(SajuError):
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await pipeline.interpret_saju(saju={}, analysis={}, daeun=[], current_year=2026)
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@respx.mock
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async def test_saju_http_error():
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respx.post("https://api.anthropic.com/v1/messages").mock(
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return_value=httpx.Response(500, text="boom")
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)
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with pytest.raises(SajuError):
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await pipeline.interpret_saju(saju={}, analysis={}, daeun=[], current_year=2026)
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@respx.mock
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async def test_compat_interpret_success():
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respx.post("https://api.anthropic.com/v1/messages").mock(
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return_value=httpx.Response(200, json=_claude_envelope(json.dumps(_valid_compat_response())))
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)
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result = await pipeline.interpret_compat(
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saju_a={"day_stem": "辛"}, saju_b={"day_stem": "丁"},
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analysis_a={}, analysis_b={},
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score=85, breakdown={"day_master_element": {"score": 25}},
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)
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assert result["reroll_count"] == 0
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assert "interpretation_json" in result
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@respx.mock
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async def test_compat_reroll_then_success():
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valid = json.dumps(_valid_compat_response())
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invalid = json.dumps({"summary": "...", "strengths": [], "challenges": [], "advice": "", "confidence": "high"})
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respx.post("https://api.anthropic.com/v1/messages").mock(
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side_effect=[
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httpx.Response(200, json=_claude_envelope(invalid)),
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httpx.Response(200, json=_claude_envelope(valid)),
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]
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)
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result = await pipeline.interpret_compat(
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saju_a={}, saju_b={}, analysis_a={}, analysis_b={},
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score=50, breakdown={},
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)
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assert result["reroll_count"] == 1
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def test_calc_cost():
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cost = pipeline.calc_cost(1_000_000, 1_000_000)
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assert cost == pipeline.SAJU_COST_INPUT_PER_M + pipeline.SAJU_COST_OUTPUT_PER_M
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