Source code for matplotlib.testing

Helper functions for testing.

import locale
import logging

import matplotlib as mpl
from matplotlib import cbook

_log = logging.getLogger(__name__)

[docs]@cbook.deprecated("3.2") def is_called_from_pytest(): """Whether we are in a pytest run.""" return getattr(mpl, '_called_from_pytest', False)
[docs]def set_font_settings_for_testing(): mpl.rcParams[''] = 'DejaVu Sans' mpl.rcParams['text.hinting'] = 'none' mpl.rcParams['text.hinting_factor'] = 8
[docs]def set_reproducibility_for_testing(): mpl.rcParams['svg.hashsalt'] = 'matplotlib'
[docs]def setup(): # The baseline images are created in this locale, so we should use # it during all of the tests. try: locale.setlocale(locale.LC_ALL, 'en_US.UTF-8') except locale.Error: try: locale.setlocale(locale.LC_ALL, 'English_United States.1252') except locale.Error: _log.warning( "Could not set locale to English/United States. " "Some date-related tests may fail.") mpl.use('Agg') with cbook._suppress_matplotlib_deprecation_warning(): mpl.rcdefaults() # Start with all defaults # These settings *must* be hardcoded for running the comparison tests and # are not necessarily the default values as specified in set_font_settings_for_testing() set_reproducibility_for_testing()