52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
"""
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Helper functions for testing.
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"""
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import locale
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import logging
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import warnings
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import matplotlib as mpl
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from matplotlib import cbook
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_log = logging.getLogger(__name__)
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def is_called_from_pytest():
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"""Whether we are in a pytest run."""
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return getattr(mpl, '_called_from_pytest', False)
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def set_font_settings_for_testing():
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mpl.rcParams['font.family'] = 'DejaVu Sans'
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mpl.rcParams['text.hinting'] = False
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mpl.rcParams['text.hinting_factor'] = 8
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def set_reproducibility_for_testing():
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mpl.rcParams['svg.hashsalt'] = 'matplotlib'
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def setup():
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# The baseline images are created in this locale, so we should use
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# it during all of the tests.
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try:
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locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
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except locale.Error:
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try:
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locale.setlocale(locale.LC_ALL, 'English_United States.1252')
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except locale.Error:
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_log.warning(
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"Could not set locale to English/United States. "
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"Some date-related tests may fail.")
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mpl.use('Agg', force=True, warn=False) # use Agg backend for these tests
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with cbook._suppress_matplotlib_deprecation_warning():
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mpl.rcdefaults() # Start with all defaults
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# These settings *must* be hardcoded for running the comparison tests and
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# are not necessarily the default values as specified in rcsetup.py.
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set_font_settings_for_testing()
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set_reproducibility_for_testing()
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