28 lines
1.3 KiB
Python
28 lines
1.3 KiB
Python
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"""Shared pytest fixtures and import-time guards for the backend test suite.
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pytest imports this file before any test module beneath backend/tests/, which
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makes it the only reliable place to install import-time guards: individual test
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modules cannot guarantee they run first, because collection order follows
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directory names.
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"""
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from __future__ import annotations
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import sys
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from unittest.mock import MagicMock
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# app/shared/bootstrap.py (the composition root) eagerly imports the Postgres
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# store modules, which do `import psycopg2` at their own module scope and later
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# open a real connection pool. Any test that transitively imports bootstrap
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# would therefore bind the real driver and attempt a live TCP connection to the
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# configured production database, surfacing as a multi-second timeout rather
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# than an obvious error. Binding mocks here — before the first test module is
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# imported — makes that impossible regardless of collection order.
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# setdefault (not assignment) keeps a real psycopg2 in place if something has
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# already imported it deliberately.
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_mock_psycopg2 = MagicMock()
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_mock_psycopg2.extras = MagicMock()
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sys.modules.setdefault("psycopg2", _mock_psycopg2)
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sys.modules.setdefault("psycopg2.extras", _mock_psycopg2.extras)
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sys.modules.setdefault("psycopg2.pool", MagicMock())
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