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v3.10.6

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import os

from matplotlib import pyplot as plt

import pytest

from unittest import mock

@pytest.mark.backend("gtk3agg", skip_on_importerror=True)

def test_correct_key():

pytest.xfail("test_widget_send_event is not triggering key_press_event")

from gi.repository import Gdk, Gtk # type: ignore[import]

fig = plt.figure()

buf = []

def send(event):

for key, mod in [

(Gdk.KEY_a, Gdk.ModifierType.SHIFT_MASK),

(Gdk.KEY_a, 0),

(Gdk.KEY_a, Gdk.ModifierType.CONTROL_MASK),

(Gdk.KEY_agrave, 0),

(Gdk.KEY_Control_L, Gdk.ModifierType.MOD1_MASK),

(Gdk.KEY_Alt_L, Gdk.ModifierType.CONTROL_MASK),

(Gdk.KEY_agrave,

Gdk.ModifierType.CONTROL_MASK

| Gdk.ModifierType.MOD1_MASK

| Gdk.ModifierType.MOD4_MASK),

(0xfd16, 0), # KEY_3270_Play.

(Gdk.KEY_BackSpace, 0),

(Gdk.KEY_BackSpace, Gdk.ModifierType.CONTROL_MASK),

]:

# This is not actually really the right API: it depends on the

# actual keymap (e.g. on Azerty, shift+agrave -> 0).

Gtk.test_widget_send_key(fig.canvas, key, mod)

def receive(event):

buf.append(event.key)

if buf == [

"A", "a", "ctrl+a",

"\N{LATIN SMALL LETTER A WITH GRAVE}",

"alt+control", "ctrl+alt",

"ctrl+alt+super+\N{LATIN SMALL LETTER A WITH GRAVE}",

# (No entry for KEY_3270_Play.)

"backspace", "ctrl+backspace",

]:

plt.close(fig)

fig.canvas.mpl_connect("draw_event", send)

fig.canvas.mpl_connect("key_press_event", receive)

plt.show()

@pytest.mark.backend("gtk3agg", skip_on_importerror=True)

def test_save_figure_return():

from gi.repository import Gtk

fig, ax = plt.subplots()

ax.imshow([[1]])

with mock.patch("gi.repository.Gtk.FileFilter") as fileFilter:

filt = fileFilter.return_value

filt.get_name.return_value = "Portable Network Graphics"

with mock.patch("gi.repository.Gtk.FileChooserDialog") as dialogChooser:

dialog = dialogChooser.return_value

dialog.get_filter.return_value = filt

dialog.get_filename.return_value = "foobar.png"

dialog.run.return_value = Gtk.ResponseType.OK

fname = fig.canvas.manager.toolbar.save_figure()

os.remove("foobar.png")

assert fname == "foobar.png"

with mock.patch("gi.repository.Gtk.MessageDialog"):

dialog.get_filename.return_value = None

dialog.run.return_value = Gtk.ResponseType.OK

fname = fig.canvas.manager.toolbar.save_figure()

assert fname is None