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Atay-Makhzan/.agents/skills/bmad-eval-runner/scripts/tests/test_env_isolation.py
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#!/usr/bin/env python3
"""Guard the clean-room env contract in run_evals.py and run_triggers.py.
The eval result is only honest if nothing from the host shell leaks into the
subprocess. Both scripts carry their own build_case_env (they are
deliberately self-contained); this test pins the contract on both copies:
exactly PATH + fresh HOME + CLAUDE_CONFIG_DIR + auth-var-only-when-set +
declared passthrough keys, nothing else.
Run with: python3 -m pytest test_env_isolation.py
(or plain `python3 test_env_isolation.py` for a lightweight self-check).
"""
import sys
from pathlib import Path
SCRIPTS_DIR = Path(__file__).resolve().parents[1]
sys.path.insert(0, str(SCRIPTS_DIR))
import run_evals # noqa: E402
import run_triggers # noqa: E402
BUILDERS = [run_evals.build_case_env, run_triggers.build_case_env]
HOST_ENV = {
"PATH": "/usr/bin:/bin",
"HOME": "/Users/host",
"ANTHROPIC_API_KEY": "sk-test-123",
"AWS_SECRET_ACCESS_KEY": "host-secret-must-not-leak",
"CLAUDE_CONFIG_DIR": "/Users/host/.claude",
"EXTRA_VAR": "extra",
}
HOME = Path("/tmp/eval-case/.home")
def test_minimal_env_keys():
adapter = {"auth_env": "ANTHROPIC_API_KEY"}
for build in BUILDERS:
env = build(adapter, HOME, HOST_ENV)
assert set(env) == {"PATH", "HOME", "CLAUDE_CONFIG_DIR",
"ANTHROPIC_API_KEY"}, (build.__module__, env)
assert env["PATH"] == HOST_ENV["PATH"]
assert env["HOME"] == str(HOME), "HOME must be the fresh case home"
assert env["CLAUDE_CONFIG_DIR"] == str(HOME / ".claude")
assert env["ANTHROPIC_API_KEY"] == "sk-test-123"
assert "AWS_SECRET_ACCESS_KEY" not in env, "host secrets leaked"
def test_auth_var_absent_when_unset():
# Setting auth to "" breaks the runtime's OAuth fallback — the key must
# be absent, never empty.
adapter = {"auth_env": "ANTHROPIC_API_KEY"}
for host in ({}, {"ANTHROPIC_API_KEY": ""}):
for build in BUILDERS:
env = build(adapter, HOME, {"PATH": "/bin", **host})
assert "ANTHROPIC_API_KEY" not in env, (build.__module__, env)
def test_no_adapter_still_minimal():
for build in BUILDERS:
env = build(None, HOME, HOST_ENV)
assert set(env) == {"PATH", "HOME", "CLAUDE_CONFIG_DIR"}, env
def test_env_passthrough_only_declared_and_present():
adapter = {"auth_env": "ANTHROPIC_API_KEY",
"env_passthrough": ["EXTRA_VAR", "NOT_SET_ON_HOST"]}
for build in BUILDERS:
env = build(adapter, HOME, HOST_ENV)
assert env.get("EXTRA_VAR") == "extra"
assert "NOT_SET_ON_HOST" not in env
assert "AWS_SECRET_ACCESS_KEY" not in env
if __name__ == "__main__":
test_minimal_env_keys()
test_auth_var_absent_when_unset()
test_no_adapter_still_minimal()
test_env_passthrough_only_declared_and_present()
print("ok: build_case_env contract holds in run_evals and run_triggers")