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Add tests for ginput and waitforbuttonpress. #20189

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Merged
merged 1 commit into from
May 12, 2021
Merged

Add tests for ginput and waitforbuttonpress. #20189

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32 changes: 32 additions & 0 deletions lib/matplotlib/tests/test_figure.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import io
from pathlib import Path
import platform
from threading import Timer
from types import SimpleNamespace
import warnings

Expand Down Expand Up @@ -1082,3 +1083,34 @@ def test_add_axes_kwargs():
assert ax1.name == 'rectilinear'
assert ax1 is not ax
plt.close()


def test_ginput(recwarn): # recwarn undoes warn filters at exit.
warnings.filterwarnings("ignore", "cannot show the figure")
fig, ax = plt.subplots()

def single_press():
fig.canvas.button_press_event(*ax.transData.transform((.1, .2)), 1)

Timer(.1, single_press).start()
assert fig.ginput() == [(.1, .2)]

def multi_presses():
fig.canvas.button_press_event(*ax.transData.transform((.1, .2)), 1)
fig.canvas.key_press_event("backspace")
fig.canvas.button_press_event(*ax.transData.transform((.3, .4)), 1)
fig.canvas.button_press_event(*ax.transData.transform((.5, .6)), 1)
fig.canvas.button_press_event(*ax.transData.transform((0, 0)), 2)

Timer(.1, multi_presses).start()
np.testing.assert_allclose(fig.ginput(3), [(.3, .4), (.5, .6)])


def test_waitforbuttonpress(recwarn): # recwarn undoes warn filters at exit.
warnings.filterwarnings("ignore", "cannot show the figure")
fig = plt.figure()
assert fig.waitforbuttonpress(timeout=.1) is None
Timer(.1, fig.canvas.key_press_event, ("z",)).start()
assert fig.waitforbuttonpress() is True
Timer(.1, fig.canvas.button_press_event, (0, 0, 1)).start()
assert fig.waitforbuttonpress() is False