I heard Unit Testing is a great method to keep code working correctly.
The unit testing usually puts a simple input to a function, and check its simple output. But how do I test a UI?
My program is written in PyQt. Should I choose PyUnit, or Qt's built-in QTest?
There's a good tutorial about using Python's unit testing framework with QTest here .
It isn't about choosing one or the other. Instead, it's about using them together. The purpose of QTest is only to simulate keystrokes, mouse clicks, and mouse movement. Python's unit testing framework handles the rest (setup, teardown, launching tests, gathering results, etc.).
As another option there is also pytest-qt
if you prefer working with pytest
:
https://pytest-qt.readthedocs.io/en/latest/intro.html
It lets you test pyqt
and pyside
applications and allows the simulation of user interaction. Here is a small example from its documentation:
def test_hello(qtbot):
widget = HelloWidget()
qtbot.addWidget(widget)
# click in the Greet button and make sure it updates the appropriate label
qtbot.mouseClick(widget.button_greet, QtCore.Qt.LeftButton)
assert widget.greet_label.text() == "Hello!"
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