我正在构建一个基于PySide 1.1.0的应用程序，并一直在寻找好的示例来进行单元测试和功能测试。我希望能够对UI进行功能测试（模拟点击、按键等），对改变UI布局的UI slots进行单元测试（可能使用部分mocked sender和receiver），以及对涉及小部件的代码进行单元测试，但不需要渲染任何窗口。
例如，当将项目添加到提供数据给QTreeView的模型（QAbstractItemModel派生对象）时，我会动态创建菜单栏中一个菜单的子菜单。模型和子菜单必须保持同步，因此我希望能编写一个单元测试，向管理模型和子菜单的控制器提交数据，并断言模型和子菜单都已正确更新。
如果可以避免，我不想在我的测试代码中设置QApplication。我也不想在仅关心验证小部件中的数据结构而不是其可视化时显示任何窗口。
在http://www.pyside.org或我的Google搜索中，我找不到合适的内容。是否有人有经验或知道我应该查看哪些好的示例代码？
我现在正在尝试对pyside代码进行单元测试，并得出结论：将python的unittest模块与qt的QTest模块相结合效果不错。
您需要实例化一个QApplication对象，但不需要运行其exec_方法，因为您不需要运行事件循环。
下面是我测试对话框中的QCheckBox是否按预期工作的示例：
class Test_PwsAddEntryDialog(TestCase):
"""Tests the class PwsAddEntryDialog."""
def test_password_strength_checking_works(self):
"""Tests if password strength checking works, if the corresponding check
box is checked.
"""
d = PwsAddEntryDialog()
# test default of internal flag
self.assertFalse(d.testPasswordStrength)
# type something
QTest.keyClicks(d.editSecret, "weak", 0, 10)
# make sure that entered text is not treated as a password
self.assertEqual(d.labelPasswordStrength.text(), "")
# click 'is password' checkbox
QTest.mouseClick(d.checkIsPassword, Qt.LeftButton)
# test internal flag changed
self.assertTrue(d.testPasswordStrength)
# test that label now contains a warning
self.assertTrue(d.labelPasswordStrength.text().find("too short") > 0)
# click checkbox again
QTest.mouseClick(d.checkIsPassword, Qt.LeftButton)
# check that internal flag once again changed
self.assertFalse(d.testPasswordStrength)
# make sure warning disappeared again
self.assertEqual(d.labelPasswordStrength.text(), "")
这完全可以在屏幕外运行，涉及单击小部件并在 QLineEdit 中输入文本。
以下是我如何测试一个（相当简单的）QAbstractListModel：
class Test_SectionListModel(TestCase):
"""Tests the class SectionListModel."""
def test_model_works_as_expected(self):
"""Tests if the expected rows are generated from a sample pws file
content.
"""
model = SectionListModel(SAMPLE_PASSWORDS_DICT)
l = len(SAMPLE_PASSWORDS_DICT)
self.assertEqual(model.rowCount(None), l)
i = 0
for section in SAMPLE_PASSWORDS_DICT.iterkeys():
self.assertEqual(model.data(model.index(i)), section)
i += 1
我希望这能有所帮助。
import unittest
from PySide.QtGui import QApplication
_instance = None
class UsesQApplication(unittest.TestCase):
'''Helper class to provide QApplication instances'''
qapplication = True
def setUp(self):
'''Creates the QApplication instance'''
# Simple way of making instance a singleton
super(UsesQApplication, self).setUp()
global _instance
if _instance is None:
_instance = QApplication([])
self.app = _instance
def tearDown(self):
'''Deletes the reference owned by self'''
del self.app
super(UsesQApplication, self).tearDown()
然后子类化UsesQApplication
from PySide import QtGui
class Test(UsesQApplication):
def setUp(self):
#If you override setup, tearDown, make sure
#to have a super call
super(TestFilterListItem, self).setUp()
def tearDown(self):
super(TestFilterListItem, self).tearDown()
def testName(self):
pix = QtGui.QPixmap(20,20)
self.assertTrue(True)
if QtGui.qApp == None: QtGui.QApplication([]) 就可以了。 - strubblyif not QtWidgets.QApplication.instance(): APP = QtWidgets.QApplication([]) https://doc.qt.io/qtforpython-5/PySide2/QtWidgets/QApplication.html#detailed-description - Lorem Ipsum