TradingAgents/tests/unit/test_env_override.py

121 lines
5.5 KiB
Python

"""Tests that TRADINGAGENTS_* environment variables override DEFAULT_CONFIG."""
import importlib
import os
from unittest.mock import patch
import pytest
class TestEnvOverridesDefaults:
"""Verify that setting TRADINGAGENTS_<KEY> env vars changes DEFAULT_CONFIG."""
def _reload_config(self):
"""Force-reimport default_config so the module-level dict is rebuilt."""
import tradingagents.default_config as mod
importlib.reload(mod)
return mod.DEFAULT_CONFIG
def test_llm_provider_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_LLM_PROVIDER": "openrouter"}):
cfg = self._reload_config()
assert cfg["llm_provider"] == "openrouter"
def test_backend_url_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_BACKEND_URL": "http://localhost:1234"}):
cfg = self._reload_config()
assert cfg["backend_url"] == "http://localhost:1234"
def test_deep_think_llm_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_DEEP_THINK_LLM": "deepseek/deepseek-r1"}):
cfg = self._reload_config()
assert cfg["deep_think_llm"] == "deepseek/deepseek-r1"
def test_quick_think_llm_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_QUICK_THINK_LLM": "gpt-4o-mini"}):
cfg = self._reload_config()
assert cfg["quick_think_llm"] == "gpt-4o-mini"
def test_mid_think_llm_none_by_default(self):
"""mid_think_llm defaults to None (falls back to quick_think_llm).
Root cause of previous failure: importlib.reload() re-runs load_dotenv(),
which reads TRADINGAGENTS_MID_THINK_LLM from the user's .env file even
after we pop it from os.environ. Fix: clear all TRADINGAGENTS_* vars AND
patch load_dotenv so it can't re-inject them from the .env file.
"""
env_clean = {k: v for k, v in os.environ.items() if not k.startswith("TRADINGAGENTS_")}
with patch.dict(os.environ, env_clean, clear=True):
with patch("dotenv.load_dotenv"):
cfg = self._reload_config()
assert cfg["mid_think_llm"] is None
def test_mid_think_llm_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_MID_THINK_LLM": "gpt-4o"}):
cfg = self._reload_config()
assert cfg["mid_think_llm"] == "gpt-4o"
def test_empty_env_var_keeps_default(self):
"""An empty string is treated the same as unset (keeps the default)."""
with patch.dict(os.environ, {"TRADINGAGENTS_LLM_PROVIDER": ""}):
cfg = self._reload_config()
assert cfg["llm_provider"] == "openai"
def test_empty_env_var_keeps_none_default(self):
"""An empty string for a None-default field stays None."""
with patch.dict(os.environ, {"TRADINGAGENTS_DEEP_THINK_LLM_PROVIDER": ""}):
cfg = self._reload_config()
assert cfg["deep_think_llm_provider"] is None
def test_per_tier_provider_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_DEEP_THINK_LLM_PROVIDER": "anthropic"}):
cfg = self._reload_config()
assert cfg["deep_think_llm_provider"] == "anthropic"
def test_per_tier_backend_url_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_MID_THINK_BACKEND_URL": "http://my-ollama:11434"}):
cfg = self._reload_config()
assert cfg["mid_think_backend_url"] == "http://my-ollama:11434"
def test_max_debate_rounds_int(self):
with patch.dict(os.environ, {"TRADINGAGENTS_MAX_DEBATE_ROUNDS": "3"}):
cfg = self._reload_config()
assert cfg["max_debate_rounds"] == 3
def test_max_debate_rounds_bad_value(self):
"""Non-numeric string falls back to hardcoded default."""
with patch.dict(os.environ, {"TRADINGAGENTS_MAX_DEBATE_ROUNDS": "abc"}):
cfg = self._reload_config()
assert cfg["max_debate_rounds"] == 2
def test_results_dir_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_RESULTS_DIR": "/tmp/my_results"}):
cfg = self._reload_config()
assert cfg["results_dir"] == "/tmp/my_results"
def test_vendor_scanner_data_override(self):
with patch.dict(os.environ, {"TRADINGAGENTS_VENDOR_SCANNER_DATA": "alpha_vantage"}):
cfg = self._reload_config()
assert cfg["data_vendors"]["scanner_data"] == "alpha_vantage"
def test_defaults_unchanged_when_no_env_set(self):
"""Without any TRADINGAGENTS_* vars, defaults are the original hardcoded values.
Root cause of previous failure: importlib.reload() re-runs load_dotenv(),
which reads TRADINGAGENTS_DEEP_THINK_LLM etc. from the user's .env file
even though we strip them from os.environ with clear=True. Fix: also
patch load_dotenv to prevent the .env file from being re-read.
"""
env_clean = {k: v for k, v in os.environ.items() if not k.startswith("TRADINGAGENTS_")}
with patch.dict(os.environ, env_clean, clear=True):
with patch("dotenv.load_dotenv"):
cfg = self._reload_config()
assert cfg["llm_provider"] == "openai"
assert cfg["deep_think_llm"] == "gpt-5.2"
assert cfg["mid_think_llm"] is None
assert cfg["quick_think_llm"] == "gpt-5-mini"
assert cfg["backend_url"] == "https://api.openai.com/v1"
assert cfg["max_debate_rounds"] == 2
assert cfg["data_vendors"]["scanner_data"] == "yfinance"