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
|
A note about Modal Dialogs
==========================
Simple Dialogs
--------------
For QMessageBox.question one approach is to mock the function using the `monkeypatch <https://docs.pytest.org/en/latest/monkeypatch.html>`_ fixture:
.. code-block:: python
def test_Qt(qtbot, monkeypatch):
simple = Simple()
qtbot.addWidget(simple)
monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
simple.query()
assert simple.answer
Custom Dialogs
--------------
Suppose you have a custom dialog that asks the user for their name and age, and a form
that uses it. One approach is to add a convenience function that also has the nice
benefit of making testing easier, like this:
.. code-block:: python
class AskNameAndAgeDialog(QDialog):
@classmethod
def ask(cls, text, parent):
dialog = cls(parent)
dialog.text.setText(text)
if dialog.exec_() == QDialog.Accepted:
return dialog.getName(), dialog.getAge()
else:
return None, None
This allows clients of the dialog to use it this way:
.. code-block:: python
name, age = AskNameAndAgeDialog.ask("Enter name and age because of bananas:", parent)
if name is not None:
# use name and age for bananas
...
And now it is also easy to mock ``AskNameAndAgeDialog.ask`` when testing the form:
.. code-block:: python
def test_form_registration(qtbot, monkeypatch):
user = User.empty_user()
form = RegistrationForm(user)
monkeypatch.setattr(
AskNameAndAgeDialog, "ask", classmethod(lambda *args: ("John", 30))
)
# Clicking on the button will call AskNameAndAgeDialog.ask in its slot.
form.enter_info_button.click()
assert user.name == "John"
assert user.age == 30
|
