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['font.family'] = '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 rcsetup.py.
set_font_settings_for_testing()
set_reproducibility_for_testing()