44 lines
1.9 KiB
Python
44 lines
1.9 KiB
Python
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"""Regression test for the history route shim (slice 2d, #4082/#4071).
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The backward-compat shim at ``routes/history_routes.py`` uses ``sys.modules``
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replacement so the legacy import path and the canonical ``routes.history.*``
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path resolve to the *same* module object. This is required because
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``test_history_compact_tool_calls.py`` and ``test_fork_session_metadata.py``
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do ``import routes.history_routes as history_routes`` followed by
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``monkeypatch.setattr(history_routes, "_verify_session_owner", ...)`` — for
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those patches to take effect at runtime, the legacy module object and the
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canonical one must be identical. This test pins that contract.
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"""
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import importlib
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import routes.history_routes as _shim_history # noqa: F401
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def test_legacy_and_canonical_history_module_are_same_object():
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"""``import routes.history_routes`` must alias the canonical module."""
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legacy = importlib.import_module("routes.history_routes")
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canonical = importlib.import_module("routes.history.history_routes")
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assert legacy is canonical, (
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"routes.history_routes shim must resolve to the canonical "
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"routes.history.history_routes module object"
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)
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def test_monkeypatch_via_legacy_alias_reaches_canonical(monkeypatch):
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"""Patching through the legacy alias must reach the canonical module.
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Several history tests do ``import routes.history_routes as history_routes``
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followed by ``monkeypatch.setattr(history_routes, "_verify_session_owner",
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...)``. For that to take effect at runtime, the legacy module object and the
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canonical one must be identical.
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"""
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legacy = importlib.import_module("routes.history_routes")
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canonical = importlib.import_module("routes.history.history_routes")
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sentinel = object()
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monkeypatch.setattr(legacy, "setup_history_routes", sentinel)
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assert canonical.setup_history_routes is sentinel, (
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"monkeypatch via legacy alias did not reach the canonical module"
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)
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