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TST: fix warning for pie chart #37669

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Merged
merged 4 commits into from
Nov 8, 2020
Merged

TST: fix warning for pie chart #37669

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1ced494
TST: fix warning for pie chart
ivanovmg Nov 6, 2020
210c06e
TST: make applicable to mpl version >= 3.3
ivanovmg Nov 6, 2020
840a823
TST: assert no warning is raised
ivanovmg Nov 7, 2020
6870056
REF: use kwargs
ivanovmg Nov 7, 2020
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11 changes: 10 additions & 1 deletion pandas/tests/plotting/test_frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2650,11 +2650,20 @@ def test_pie_df(self):
self._check_colors(ax.patches, facecolors=color_args)

def test_pie_df_nan(self):
import matplotlib as mpl

df = DataFrame(np.random.rand(4, 4))
for i in range(4):
df.iloc[i, i] = np.nan
fig, axes = self.plt.subplots(ncols=4)
df.plot.pie(subplots=True, ax=axes, legend=True)

# GH 37668
kwargs = {}
if mpl.__version__ >= "3.3":
kwargs = {"normalize": True}

with tm.assert_produces_warning(None):
df.plot.pie(subplots=True, ax=axes, legend=True, **kwargs)

base_expected = ["0", "1", "2", "3"]
for i, ax in enumerate(axes):
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