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29 lines
1.0 KiB
29 lines
1.0 KiB
7 months ago
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import fontTools
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import pytest
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@pytest.fixture(autouse=True, scope="session")
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def disableConfigLogger():
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"""Session-scoped fixture to make fontTools.configLogger function no-op.
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Logging in python maintains a global state. When in the tests we call a main()
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function from modules subset or ttx, a call to configLogger is made that modifies
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this global state (to configures a handler for the fontTools logger).
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To prevent that, we monkey-patch the `configLogger` attribute of the `fontTools`
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module (the one used in the scripts main() functions) so that it does nothing,
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to avoid any side effects.
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NOTE: `fontTools.configLogger` is only an alias for the configLogger function in
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`fontTools.misc.loggingTools` module; the original function is not modified.
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"""
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def noop(*args, **kwargs):
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return
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originalConfigLogger = fontTools.configLogger
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fontTools.configLogger = noop
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try:
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yield
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finally:
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fontTools.configLogger = originalConfigLogger
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