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Skipped flaky part of test_time #25894

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Merged
merged 3 commits into from
Mar 27, 2019
Merged

Skipped flaky part of test_time #25894

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6a8aee5
Skipped flaky part of test_time
WillAyd Mar 27, 2019
cbe4892
Changed skip to xfail
WillAyd Mar 27, 2019
2b9c032
Added strict=False
WillAyd Mar 27, 2019
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27 changes: 27 additions & 0 deletions pandas/tests/plotting/test_datetimelike.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1104,6 +1104,33 @@ def test_time(self):
xp = time(h, m, s).strftime('%H:%M')
assert xp == rs

@pytest.mark.slow
@pytest.mark.skip(reason="Unreliable test")
def test_time_change_xlim(self):
t = datetime(1, 1, 1, 3, 30, 0)
deltas = np.random.randint(1, 20, 3).cumsum()
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I believe the random ints for deltas are what can cause the failures.

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@gfyoung gfyoung Mar 27, 2019 •
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Potentially, though probably best to investigate after this PR.

ts = np.array([(t + timedelta(minutes=int(x))).time() for x in deltas])
df = DataFrame({'a': np.random.randn(len(ts)),
'b': np.random.randn(len(ts))},
index=ts)
fig, ax = self.plt.subplots()
df.plot(ax=ax)

# verify tick labels
fig.canvas.draw()
ticks = ax.get_xticks()
labels = ax.get_xticklabels()
for t, l in zip(ticks, labels):
m, s = divmod(int(t), 60)
h, m = divmod(m, 60)
rs = l.get_text()
if len(rs) > 0:
if s != 0:
xp = time(h, m, s).strftime('%H:%M:%S')
else:
xp = time(h, m, s).strftime('%H:%M')
assert xp == rs

# change xlim
ax.set_xlim('1:30', '5:00')

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