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Make test_stem less flaky. #16735

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Merged
merged 1 commit into from
Mar 13, 2020
Merged

Make test_stem less flaky. #16735

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13 changes: 9 additions & 4 deletions lib/matplotlib/tests/test_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3342,10 +3342,15 @@ def test_hist_stacked_weighted():
ax.hist((d1, d2), weights=(w1, w2), histtype="stepfilled", stacked=True)


@pytest.mark.parametrize("use_line_collection", [True, False],
ids=['w/ line collection', 'w/o line collection'])
@image_comparison(['stem.png'], style='mpl20', remove_text=True)
def test_stem(use_line_collection):
@image_comparison(['stem.png', 'stem.png'], style='mpl20', remove_text=True)
def test_stem():
# Note, we don't use @pytest.mark.parametrize, because in parallel this
# might cause one process result to overwrite another's.
for use_line_collection in [True, False]:
_test_stem(use_line_collection)


def _test_stem(use_line_collection):
x = np.linspace(0.1, 2 * np.pi, 100)
args = (x, np.cos(x))
# Label is a single space to force a legend to be drawn, but to avoid any
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