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# Copyright Crown and Cartopy Contributors
#
# This file is part of Cartopy and is released under the BSD 3-clause license.
# See LICENSE in the root of the repository for full licensing details.
import warnings
import pytest
with warnings.catch_warnings():
warnings.simplefilter('ignore', DeprecationWarning)
from cartopy.mpl import style
@pytest.mark.parametrize(
('styles', 'expected'),
[([], {}),
([{}, {}, {}], {}),
([{}, dict(a=2), dict(a=1)], dict(a=1)),
([dict(fc='red')], dict(facecolor='red')),
([dict(fc='red', color='blue')],
dict(facecolor='blue', edgecolor='blue')),
([dict(fc='red', facecolor='blue')], dict(facecolor='blue')),
([dict(color='red')],
dict(edgecolor='red', facecolor='red')),
([dict(edgecolor='blue'), dict(color='red')],
dict(edgecolor='red', facecolor='red')),
([dict(edgecolor='blue'), dict(color='red')],
dict(edgecolor='red', facecolor='red')),
([dict(color='blue'), dict(edgecolor='red')],
dict(edgecolor='red', facecolor='blue')),
# Even if you set an edgecolor, color should trump it.
([dict(color='blue'), dict(edgecolor='red', color='yellow')],
dict(edgecolor='yellow', facecolor='yellow')),
# Support for 'never' being honoured.
([dict(facecolor='never'), dict(color='yellow')],
dict(edgecolor='yellow', facecolor='never')),
([dict(lw=1, linewidth=2)], dict(linewidth=2)),
([dict(lw=1, linewidth=2), dict(lw=3)], dict(linewidth=3)),
([dict(color=None), dict(facecolor='red')],
dict(facecolor='red', edgecolor=None)),
([dict(linewidth=1), dict(lw=None)], dict(linewidth=None)),
([dict(facecolor='never'), dict(fc='NoNe')], dict(facecolor='never')),
]
)
def test_merge(styles, expected):
merged_style = style.merge(*styles)
assert merged_style == expected
@pytest.mark.parametrize("case", [{'fc': 'red'}, {'fc': 1}])
def test_merge_warning(case):
with pytest.warns(UserWarning, match=r'defined as \"never\"'):
style.merge({'facecolor': 'never'}, case)
@pytest.mark.parametrize(
('style_d', 'expected'),
[
# Support for 'never' being honoured.
(dict(facecolor='never', edgecolor='yellow'),
dict(edgecolor='yellow', facecolor='none')),
])
def test_finalize(style_d, expected):
assert style.finalize(style_d) == expected
# Double check we are updating in-place
assert style_d == expected
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