/usr/lib/python2.7/dist-packages/qtpy/tests/test_patch_qcombobox.py is in python-qtpy 1.3.1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 | from __future__ import absolute_import
import sys
import pytest
from qtpy import PYSIDE2, QtGui, QtWidgets
PY3 = sys.version[0] == "3"
def get_qapp(icon_path=None):
qapp = QtWidgets.QApplication.instance()
if qapp is None:
qapp = QtWidgets.QApplication([''])
return qapp
class Data(object):
"""
Test class to store in userData. The __getitem__ is needed in order to
reproduce the segmentation fault.
"""
def __getitem__(self, item):
raise ValueError("Failing")
@pytest.mark.skipif(PY3 or PYSIDE2, reason="It segfaults in Python 3 and PYSIDE2")
def test_patched_qcombobox():
"""
In PySide, using Python objects as userData in QComboBox causes
Segmentation faults under certain conditions. Even in cases where it
doesn't, findData does not work correctly. Likewise, findData also
does not work correctly with Python objects when using PyQt4. On the
other hand, PyQt5 deals with this case correctly. We therefore patch
QComboBox when using PyQt4 and PySide to avoid issues.
"""
app = get_qapp()
data1 = Data()
data2 = Data()
data3 = Data()
data4 = Data()
data5 = Data()
data6 = Data()
icon1 = QtGui.QIcon()
icon2 = QtGui.QIcon()
widget = QtWidgets.QComboBox()
widget.addItem('a', data1)
widget.insertItem(0, 'b', data2)
widget.addItem('c', data1)
widget.setItemData(2, data3)
widget.addItem(icon1, 'd', data4)
widget.insertItem(3, icon2, 'e', data5)
widget.addItem(icon1, 'f')
widget.insertItem(5, icon2, 'g')
widget.show()
assert widget.findData(data1) == 1
assert widget.findData(data2) == 0
assert widget.findData(data3) == 2
assert widget.findData(data4) == 4
assert widget.findData(data5) == 3
assert widget.findData(data6) == -1
assert widget.itemData(0) == data2
assert widget.itemData(1) == data1
assert widget.itemData(2) == data3
assert widget.itemData(3) == data5
assert widget.itemData(4) == data4
assert widget.itemData(5) is None
assert widget.itemData(6) is None
assert widget.itemText(0) == 'b'
assert widget.itemText(1) == 'a'
assert widget.itemText(2) == 'c'
assert widget.itemText(3) == 'e'
assert widget.itemText(4) == 'd'
assert widget.itemText(5) == 'g'
assert widget.itemText(6) == 'f'
def test_model_item():
"""
This is a regression test for an issue that caused the call to item(0)
below to trigger segmentation faults in PySide. The issue is
non-deterministic when running the call once, so we include a loop to make
sure that we trigger the fault.
"""
app = get_qapp()
combo = QtWidgets.QComboBox()
label_data = [('a', None)]
for iter in range(10000):
combo.clear()
for i, (label, data) in enumerate(label_data):
combo.addItem(label, userData=data)
model = combo.model()
model.item(0)
|