anti
a63708a3d1
Add tests/service_testing/test_instance_seed.py — pins NODE_NAME to assert determinism of seeded functions and sweeps NODE_NAMEs to assert cross-fleet divergence. Conftest gains load_real_instance_seed() so template tests see the real seeding behavior instead of a stub. Existing template tests updated to pin NODE_NAME and match seeded outputs.
62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
"""
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Shared helpers for binary-protocol service tests.
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"""
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import os
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import threading
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from types import ModuleType
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from unittest.mock import MagicMock
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import pytest
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from hypothesis import HealthCheck
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_FUZZ_SETTINGS = dict(
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max_examples=int(os.environ.get("HYPOTHESIS_MAX_EXAMPLES", "200")),
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deadline=2000,
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suppress_health_check=[HealthCheck.function_scoped_fixture],
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)
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def make_fake_syslog_bridge() -> ModuleType:
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mod = ModuleType("syslog_bridge")
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mod.syslog_line = MagicMock(return_value="")
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mod.write_syslog_file = MagicMock()
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mod.forward_syslog = MagicMock()
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mod.SEVERITY_WARNING = 4
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mod.SEVERITY_INFO = 6
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return mod
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def load_real_instance_seed() -> ModuleType:
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"""Load the real instance_seed helper so templates under test see the
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actual per-instance seeding behavior, not a stub. Tests that need
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determinism should pin NODE_NAME via monkeypatch before loading a
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template."""
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import importlib.util
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spec = importlib.util.spec_from_file_location(
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"instance_seed", "decnet/templates/instance_seed.py"
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)
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mod = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(mod)
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return mod
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def run_with_timeout(fn, *args, timeout: float = 2.0) -> None:
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"""Run fn(*args) in a daemon thread. pytest.fail if it doesn't return in time."""
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exc_box: list[BaseException] = []
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def _target():
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try:
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fn(*args)
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except Exception as e:
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exc_box.append(e)
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t = threading.Thread(target=_target, daemon=True)
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t.start()
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t.join(timeout)
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if t.is_alive():
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pytest.fail(f"data_received hung for >{timeout}s — likely infinite loop")
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if exc_box:
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raise exc_box[0]
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