32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
"""Make the test suite runnable on machines without Tk system libraries.
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``utils.filedialogs`` imports tkinter at module level, and the CI runner
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lacks the Tk shared libraries (``import tkinter`` fails on a missing
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``libtk8.6.so``). Since pytest imports every test module at collection
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time — including the deselected ``test_filedialogs_live.py`` — a minimal
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stub is registered in ``sys.modules`` here, before any test module is
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imported, whenever tkinter is not importable.
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The hermetic tests in ``test_filedialogs.py`` mock every tkinter
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touchpoint anyway, so the stub is never actually used.
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"""
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import sys
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import types
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try:
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import tkinter # noqa: F401
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except ImportError:
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_tk_stub = types.ModuleType("tkinter")
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_filedialog_stub = types.ModuleType("tkinter.filedialog")
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def _tk_unavailable(*args, **kwargs):
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raise AssertionError("real tkinter was called without a display")
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_tk_stub.Tk = _tk_unavailable
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_tk_stub.filedialog = _filedialog_stub
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_filedialog_stub.askdirectory = _tk_unavailable
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_filedialog_stub.askopenfilename = _tk_unavailable
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sys.modules["tkinter"] = _tk_stub
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sys.modules["tkinter.filedialog"] = _filedialog_stub
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