def test_Bug_2543():
# Test that it possible to add all values to itself / deepcopy
# This was not possible because validate_bool_maybe_none did not
# accept None as an argument.
# https://github.com/matplotlib/matplotlib/issues/2543
# We filter warnings at this stage since a number of them are raised
# for deprecated rcparams as they should. We don't want these in the
# printed in the test suite.
with cbook._suppress_matplotlib_deprecation_warning():
with mpl.rc_context():
_copy = mpl.rcParams.copy()
for key in _copy:
mpl.rcParams[key] = _copy[key]
with mpl.rc_context():
copy.deepcopy(mpl.rcParams)
# real test is that this does not raise
assert validate_bool_maybe_none(None) is None
assert validate_bool_maybe_none("none") is None
with pytest.raises(ValueError):
validate_bool_maybe_none("blah")
with pytest.raises(ValueError):
validate_bool(None)
with pytest.raises(ValueError):
with mpl.rc_context():
mpl.rcParams['svg.fonttype'] = True
def use(style):
"""
Use Matplotlib style settings from a style specification.
The style name of 'default' is reserved for reverting back to
the default style settings.
.. note::
This updates the `.rcParams` with the settings from the style.
`.rcParams` not defined in the style are kept.
Parameters
----------
style : str, dict, Path or list
A style specification. Valid options are:
+------+-------------------------------------------------------------+
| str | The name of a style or a path/URL to a style file. For a |
| | list of available style names, see `style.available`. |
+------+-------------------------------------------------------------+
| dict | Dictionary with valid key/value pairs for |
| | `matplotlib.rcParams`. |
+------+-------------------------------------------------------------+
| Path | A path-like object which is a path to a style file. |
+------+-------------------------------------------------------------+
| list | A list of style specifiers (str, Path or dict) applied from |
| | first to last in the list. |
+------+-------------------------------------------------------------+
"""
style_alias = {'mpl20': 'default',
'mpl15': 'classic'}
if isinstance(style, (str, Path)) or hasattr(style, 'keys'):
# If name is a single str, Path or dict, make it a single element list.
styles = [style]
else:
styles = style
styles = (style_alias.get(s, s) if isinstance(s, str) else s
for s in styles)
for style in styles:
if not isinstance(style, (str, Path)):
_apply_style(style)
elif style == 'default':
# Deprecation warnings were already handled when creating
# rcParamsDefault, no need to reemit them here.
with cbook._suppress_matplotlib_deprecation_warning():
_apply_style(rcParamsDefault, warn=False)
elif style in library:
_apply_style(library[style])
else:
try:
rc = rc_params_from_file(style, use_default_template=False)
_apply_style(rc)
except IOError as err:
raise IOError(
"{!r} not found in the style library and input is not a "
"valid URL or path; see `style.available` for list of "
"available styles".format(style)) from err
def test_ParasiteAxesAuxTrans(parasite_cls):
# Remove this line when this test image is regenerated.
plt.rcParams['pcolormesh.snap'] = False
data = np.ones((6, 6))
data[2, 2] = 2
data[0, :] = 0
data[-2, :] = 0
data[:, 0] = 0
data[:, -2] = 0
x = np.arange(6)
y = np.arange(6)
xx, yy = np.meshgrid(x, y)
funcnames = ['pcolor', 'pcolormesh', 'contourf']
fig = plt.figure()
for i, name in enumerate(funcnames):
ax1 = SubplotHost(fig, 1, 3, i + 1)
fig.add_subplot(ax1)
with cbook._suppress_matplotlib_deprecation_warning():
ax2 = parasite_cls(ax1, IdentityTransform())
ax1.parasites.append(ax2)
if name.startswith('pcolor'):
getattr(ax2, name)(xx, yy, data[:-1, :-1])
else:
getattr(ax2, name)(xx, yy, data)
ax1.set_xlim((0, 5))
ax1.set_ylim((0, 5))
ax2.contour(xx, yy, data, colors='k')
def test_Bug_2543():
# Test that it possible to add all values to itself / deepcopy
# This was not possible because validate_bool_maybe_none did not
# accept None as an argument.
# https://github.com/matplotlib/matplotlib/issues/2543
# We filter warnings at this stage since a number of them are raised
# for deprecated rcparams as they should. We don't want these in the
# printed in the test suite.
with cbook._suppress_matplotlib_deprecation_warning():
with mpl.rc_context():
_copy = mpl.rcParams.copy()
for key in _copy:
mpl.rcParams[key] = _copy[key]
with mpl.rc_context():
copy.deepcopy(mpl.rcParams)
# real test is that this does not raise
assert validate_bool_maybe_none(None) is None
assert validate_bool_maybe_none("none") is None
with pytest.raises(ValueError):
validate_bool_maybe_none("blah")
with pytest.raises(ValueError):
validate_bool(None)
with pytest.raises(ValueError):
with mpl.rc_context():
mpl.rcParams['svg.fonttype'] = True
def _matplotlib_change_style(params):
from matplotlib.cbook import _suppress_matplotlib_deprecation_warning
with _suppress_matplotlib_deprecation_warning():
current = matplotlib.rcParams.copy()
params = params.copy()
if 'backend' in params:
params.pop('backend')
matplotlib.rcParams.update(params)
return current
def use(style):
"""Use matplotlib style settings from a style specification.
The style name of 'default' is reserved for reverting back to
the default style settings.
Parameters
----------
style : str, dict, or list
A style specification. Valid options are:
+------+-------------------------------------------------------------+
| str | The name of a style or a path/URL to a style file. For a |
| | list of available style names, see `style.available`. |
+------+-------------------------------------------------------------+
| dict | Dictionary with valid key/value pairs for |
| | `matplotlib.rcParams`. |
+------+-------------------------------------------------------------+
| list | A list of style specifiers (str or dict) applied from first |
| | to last in the list. |
+------+-------------------------------------------------------------+
"""
style_alias = {'mpl20': 'default',
'mpl15': 'classic'}
if isinstance(style, str) or hasattr(style, 'keys'):
# If name is a single str or dict, make it a single element list.
styles = [style]
else:
styles = style
styles = (style_alias.get(s, s) if isinstance(s, str) else s
for s in styles)
for style in styles:
if not isinstance(style, str):
_apply_style(style)
elif style == 'default':
# Deprecation warnings were already handled when creating
# rcParamsDefault, no need to reemit them here.
with cbook._suppress_matplotlib_deprecation_warning():
_apply_style(rcParamsDefault, warn=False)
elif style in library:
_apply_style(library[style])
else:
try:
rc = rc_params_from_file(style, use_default_template=False)
_apply_style(rc)
except IOError:
raise IOError(
"{!r} not found in the style library and input is not a "
"valid URL or path; see `style.available` for list of "
"available styles".format(style))
def mpl_test_settings(request):
from matplotlib.testing.decorators import _cleanup_cm
with _cleanup_cm():
backend = None
backend_marker = request.node.get_closest_marker('backend')
if backend_marker is not None:
assert len(backend_marker.args) == 1, \
"Marker 'backend' must specify 1 backend."
backend, = backend_marker.args
skip_on_importerror = backend_marker.kwargs.get(
'skip_on_importerror', False)
prev_backend = matplotlib.get_backend()
# Default of cleanup and image_comparison too.
style = ["classic", "_classic_test_patch"]
style_marker = request.node.get_closest_marker('style')
if style_marker is not None:
assert len(style_marker.args) == 1, \
"Marker 'style' must specify 1 style."
style, = style_marker.args
matplotlib.testing.setup()
if backend is not None:
# This import must come after setup() so it doesn't load the
# default backend prematurely.
import matplotlib.pyplot as plt
try:
plt.switch_backend(backend)
except ImportError as exc:
# Should only occur for the cairo backend tests, if neither
# pycairo nor cairocffi are installed.
if 'cairo' in backend.lower() or skip_on_importerror:
pytest.skip("Failed to switch to backend {} ({})."
.format(backend, exc))
else:
raise
with cbook._suppress_matplotlib_deprecation_warning():
matplotlib.style.use(style)
try:
yield
finally:
if backend is not None:
plt.switch_backend(prev_backend)
def mpl_test_settings(request):
from matplotlib.testing.decorators import _cleanup_cm
with _cleanup_cm():
backend = None
backend_marker = request.node.get_closest_marker('backend')
if backend_marker is not None:
assert len(backend_marker.args) == 1, \
"Marker 'backend' must specify 1 backend."
backend, = backend_marker.args
prev_backend = matplotlib.get_backend()
style = '_classic_test' # Default of cleanup and image_comparison too.
style_marker = request.node.get_closest_marker('style')
if style_marker is not None:
assert len(style_marker.args) == 1, \
"Marker 'style' must specify 1 style."
style, = style_marker.args
matplotlib.testing.setup()
if backend is not None:
# This import must come after setup() so it doesn't load the
# default backend prematurely.
import matplotlib.pyplot as plt
try:
plt.switch_backend(backend)
except ImportError as exc:
# Should only occur for the cairo backend tests, if neither
# pycairo nor cairocffi are installed.
if 'cairo' in backend.lower():
pytest.skip("Failed to switch to backend {} ({})."
.format(backend, exc))
else:
raise
with cbook._suppress_matplotlib_deprecation_warning():
matplotlib.style.use(style)
try:
yield
finally:
if backend is not None:
plt.switch_backend(prev_backend)
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()
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', force=True, warn=False) # use Agg backend for these tests
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()
def mpl_test_settings(request):
from matplotlib.testing.decorators import _cleanup_cm
with _cleanup_cm():
backend = None
backend_marker = request.node.get_closest_marker('backend')
if backend_marker is not None:
assert len(backend_marker.args) == 1, \
"Marker 'backend' must specify 1 backend."
backend, = backend_marker.args
skip_on_importerror = backend_marker.kwargs.get(
'skip_on_importerror', False)
prev_backend = matplotlib.get_backend()
# special case Qt backend importing to avoid conflicts
if backend.lower().startswith('qt4'):
if any(k in sys.modules for k in ('PyQt5', 'PySide2')):
pytest.skip('Qt5 binding already imported')
try:
import PyQt4
# RuntimeError if PyQt5 already imported.
except (ImportError, RuntimeError):
try:
import PySide
except ImportError:
pytest.skip("Failed to import a Qt4 binding.")
elif backend.lower().startswith('qt5'):
if any(k in sys.modules for k in ('PyQt4', 'PySide')):
pytest.skip('Qt4 binding already imported')
try:
import PyQt5
# RuntimeError if PyQt4 already imported.
except (ImportError, RuntimeError):
try:
import PySide2
except ImportError:
pytest.skip("Failed to import a Qt5 binding.")
# Default of cleanup and image_comparison too.
style = ["classic", "_classic_test_patch"]
style_marker = request.node.get_closest_marker('style')
if style_marker is not None:
assert len(style_marker.args) == 1, \
"Marker 'style' must specify 1 style."
style, = style_marker.args
matplotlib.testing.setup()
with cbook._suppress_matplotlib_deprecation_warning():
if backend is not None:
# This import must come after setup() so it doesn't load the
# default backend prematurely.
import matplotlib.pyplot as plt
try:
plt.switch_backend(backend)
except ImportError as exc:
# Should only occur for the cairo backend tests, if neither
# pycairo nor cairocffi are installed.
if 'cairo' in backend.lower() or skip_on_importerror:
pytest.skip(
"Failed to switch to backend {} ({}).".format(
backend, exc))
else:
raise
matplotlib.style.use(style)
try:
yield
finally:
if backend is not None:
plt.switch_backend(prev_backend)
def test_normalize_kwargs_pass(inp, expected, kwargs_to_norm):
with cbook._suppress_matplotlib_deprecation_warning():
# No other warning should be emitted.
assert expected == cbook.normalize_kwargs(inp, **kwargs_to_norm)
def test_normalize_kwargs_fail(inp, kwargs_to_norm):
with pytest.raises(TypeError), \
cbook._suppress_matplotlib_deprecation_warning():
cbook.normalize_kwargs(inp, **kwargs_to_norm)
def test_formatting(self, x, label):
with cbook._suppress_matplotlib_deprecation_warning():
formatter = mticker.IndexFormatter(['label0', 'label1', 'label2'])
assert formatter(x) == label
self.width = width
self.stretch = stretch
self.stretch_order = stretch_order
self.shrink = shrink
self.shrink_order = shrink_order
def copy(self):
return GlueSpec(self.width, self.stretch, self.stretch_order,
self.shrink, self.shrink_order)
@classmethod
def factory(cls, glue_type):
return cls._types[glue_type]
with cbook._suppress_matplotlib_deprecation_warning():
GlueSpec._types = {
k: GlueSpec(**v._asdict())
for k, v in _mathtext._GlueSpec._named.items()
}
@cbook.deprecated("3.4")
def ship(ox, oy, box):
_mathtext.ship(ox, oy, box)
##############################################################################
# MAIN
def test_mathtext_to_png(tmpdir):
with cbook._suppress_matplotlib_deprecation_warning():
mt = mathtext.MathTextParser('bitmap')
mt.to_png(str(tmpdir.join('example.png')), '$x^2$')
mt.to_png(io.BytesIO(), '$x^2$')
def test_normalize_kwargs_pass(inp, expected, kwargs_to_norm, recwarn):
with cbook._suppress_matplotlib_deprecation_warning():
assert expected == cbook.normalize_kwargs(inp, **kwargs_to_norm)
assert len(recwarn) == 0
