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TST: Adjust boxplot tests following MPL API change #8429

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Oct 4, 2014
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TST: Adjust boxplot tests following MPL API change #8429

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30 changes: 18 additions & 12 deletions pandas/tests/test_graphics.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ def _skip_if_mpl_14_or_dev_boxplot():
# Boxplot failures on 1.4 and 1.4.1
# Don't need try / except since that's done at class level
import matplotlib
if matplotlib.__version__ in ('1.4.0', '1.5.x'):
if matplotlib.__version__ >= LooseVersion('1.4'):
raise nose.SkipTest("Matplotlib Regression in 1.4 and current dev.")


Expand Down Expand Up @@ -72,6 +72,11 @@ def setUp(self):
'weight': random.normal(161, 32, size=n),
'category': random.randint(4, size=n)})

if mpl.__version__ >= LooseVersion('1.4'):
self.bp_n_objects = 7
else:
self.bp_n_objects = 8

def tearDown(self):
tm.close()

Expand Down Expand Up @@ -1799,23 +1804,26 @@ def test_bar_log_subplots(self):

@slow
def test_boxplot(self):
_skip_if_mpl_14_or_dev_boxplot()
df = self.hist_df
series = df['height']
numeric_cols = df._get_numeric_data().columns
labels = [com.pprint_thing(c) for c in numeric_cols]

ax = _check_plot_works(df.plot, kind='box')
self._check_text_labels(ax.get_xticklabels(), labels)
assert_array_equal(ax.xaxis.get_ticklocs(), np.arange(1, len(numeric_cols) + 1))
self.assertEqual(len(ax.lines), 8 * len(numeric_cols))
assert_array_equal(ax.xaxis.get_ticklocs(),
np.arange(1, len(numeric_cols) + 1))
self.assertEqual(len(ax.lines),
self.bp_n_objects * len(numeric_cols))

axes = _check_plot_works(df.plot, kind='box', subplots=True, logy=True)
with tm.assert_produces_warning(UserWarning):
axes = _check_plot_works(df.plot, kind='box',
subplots=True, logy=True)
self._check_axes_shape(axes, axes_num=3, layout=(1, 3))
self._check_ax_scales(axes, yaxis='log')
for ax, label in zip(axes, labels):
self._check_text_labels(ax.get_xticklabels(), [label])
self.assertEqual(len(ax.lines), 8)
self.assertEqual(len(ax.lines), self.bp_n_objects)

axes = series.plot(kind='box', rot=40)
self._check_ticks_props(axes, xrot=40, yrot=0)
Expand All @@ -1829,35 +1837,33 @@ def test_boxplot(self):
labels = [com.pprint_thing(c) for c in numeric_cols]
self._check_text_labels(ax.get_xticklabels(), labels)
assert_array_equal(ax.xaxis.get_ticklocs(), positions)
self.assertEqual(len(ax.lines), 8 * len(numeric_cols))
self.assertEqual(len(ax.lines), self.bp_n_objects * len(numeric_cols))

@slow
def test_boxplot_vertical(self):
_skip_if_mpl_14_or_dev_boxplot()
df = self.hist_df
series = df['height']
numeric_cols = df._get_numeric_data().columns
labels = [com.pprint_thing(c) for c in numeric_cols]

# if horizontal, yticklabels are rotated
ax = df.plot(kind='box', rot=50, fontsize=8, vert=False)
self._check_ticks_props(ax, xrot=0, yrot=50, ylabelsize=8)
self._check_text_labels(ax.get_yticklabels(), labels)
self.assertEqual(len(ax.lines), 8 * len(numeric_cols))
self.assertEqual(len(ax.lines), self.bp_n_objects * len(numeric_cols))

axes = _check_plot_works(df.plot, kind='box', subplots=True,
vert=False, logx=True)
self._check_axes_shape(axes, axes_num=3, layout=(1, 3))
self._check_ax_scales(axes, xaxis='log')
for ax, label in zip(axes, labels):
self._check_text_labels(ax.get_yticklabels(), [label])
self.assertEqual(len(ax.lines), 8)
self.assertEqual(len(ax.lines), self.bp_n_objects)

positions = np.array([3, 2, 8])
ax = df.plot(kind='box', positions=positions, vert=False)
self._check_text_labels(ax.get_yticklabels(), labels)
assert_array_equal(ax.yaxis.get_ticklocs(), positions)
self.assertEqual(len(ax.lines), 8 * len(numeric_cols))
self.assertEqual(len(ax.lines), self.bp_n_objects * len(numeric_cols))

@slow
def test_boxplot_return_type(self):
Expand Down