Jiho Son
d1750af80f
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Implement the full autonomous trading agent architecture: - KIS broker with async API, token refresh, leaky bucket rate limiter, and hash key signing - Gemini-powered decision engine with JSON parsing and confidence threshold enforcement - Risk manager with circuit breaker (-3% P&L) and fat finger protection (30% cap) - Evolution engine for self-improving strategy generation via failure analysis - 35 passing tests written TDD-first covering risk, broker, and brain modules - CI/CD pipeline, Docker multi-stage build, and AI agent context docs Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
141 lines
4.6 KiB
Python
141 lines
4.6 KiB
Python
"""TDD tests for broker/kis_api.py — written BEFORE implementation."""
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from __future__ import annotations
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import asyncio
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from unittest.mock import AsyncMock, MagicMock, patch
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import aiohttp
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import pytest
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from src.broker.kis_api import KISBroker
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# ---------------------------------------------------------------------------
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# Token Management
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# ---------------------------------------------------------------------------
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class TestTokenManagement:
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"""Access token must be auto-refreshed and cached."""
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@pytest.mark.asyncio
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async def test_fetches_token_on_first_call(self, settings):
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broker = KISBroker(settings)
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mock_resp = AsyncMock()
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mock_resp.status = 200
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mock_resp.json = AsyncMock(
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return_value={
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"access_token": "tok_abc123",
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"token_type": "Bearer",
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"expires_in": 86400,
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}
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)
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mock_resp.__aenter__ = AsyncMock(return_value=mock_resp)
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mock_resp.__aexit__ = AsyncMock(return_value=False)
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with patch("aiohttp.ClientSession.post", return_value=mock_resp):
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token = await broker._ensure_token()
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assert token == "tok_abc123"
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await broker.close()
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@pytest.mark.asyncio
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async def test_reuses_cached_token(self, settings):
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broker = KISBroker(settings)
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broker._access_token = "cached_token"
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broker._token_expires_at = asyncio.get_event_loop().time() + 3600
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token = await broker._ensure_token()
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assert token == "cached_token"
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await broker.close()
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# ---------------------------------------------------------------------------
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# Network Error Handling
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# ---------------------------------------------------------------------------
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class TestNetworkErrorHandling:
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"""Broker must handle network timeouts and HTTP errors gracefully."""
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@pytest.mark.asyncio
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async def test_timeout_raises_connection_error(self, settings):
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broker = KISBroker(settings)
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broker._access_token = "tok"
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broker._token_expires_at = asyncio.get_event_loop().time() + 3600
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with patch(
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"aiohttp.ClientSession.get",
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side_effect=asyncio.TimeoutError(),
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):
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with pytest.raises(ConnectionError):
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await broker.get_orderbook("005930")
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await broker.close()
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@pytest.mark.asyncio
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async def test_http_500_raises_connection_error(self, settings):
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broker = KISBroker(settings)
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broker._access_token = "tok"
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broker._token_expires_at = asyncio.get_event_loop().time() + 3600
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mock_resp = AsyncMock()
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mock_resp.status = 500
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mock_resp.text = AsyncMock(return_value="Internal Server Error")
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mock_resp.__aenter__ = AsyncMock(return_value=mock_resp)
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mock_resp.__aexit__ = AsyncMock(return_value=False)
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with patch("aiohttp.ClientSession.get", return_value=mock_resp):
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with pytest.raises(ConnectionError):
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await broker.get_orderbook("005930")
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await broker.close()
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# ---------------------------------------------------------------------------
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# Rate Limiter
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# ---------------------------------------------------------------------------
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class TestRateLimiter:
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"""The leaky bucket rate limiter must throttle requests."""
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@pytest.mark.asyncio
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async def test_rate_limiter_does_not_block_under_limit(self, settings):
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broker = KISBroker(settings)
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# Should complete without blocking when under limit
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await broker._rate_limiter.acquire()
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await broker.close()
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# ---------------------------------------------------------------------------
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# Hash Key Generation
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# ---------------------------------------------------------------------------
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class TestHashKey:
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"""POST requests to KIS require a hash key."""
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@pytest.mark.asyncio
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async def test_generates_hash_key_for_post_body(self, settings):
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broker = KISBroker(settings)
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broker._access_token = "tok"
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broker._token_expires_at = asyncio.get_event_loop().time() + 3600
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body = {"CANO": "12345678", "ACNT_PRDT_CD": "01"}
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mock_resp = AsyncMock()
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mock_resp.status = 200
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mock_resp.json = AsyncMock(return_value={"HASH": "abc123hash"})
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mock_resp.__aenter__ = AsyncMock(return_value=mock_resp)
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mock_resp.__aexit__ = AsyncMock(return_value=False)
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with patch("aiohttp.ClientSession.post", return_value=mock_resp):
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hash_key = await broker._get_hash_key(body)
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assert isinstance(hash_key, str)
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assert len(hash_key) > 0
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await broker.close()
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