[PyQt] Problem with QTest

[Antonio Valentino]

Hi list,
I'm making some experiment with QTest and I encountered a problem.
The following test fails

"""
#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import unittest

from PyQt5 import QtWidgets
from PyQt5.QtTest import QTest


class TestCase(unittest.TestCase):
    def setUp(self):
        self.w = QtWidgets.QSpinBox()
        self.w.setValue(12)  # <-- commenting this line all works fine

    def test_value(self):
        value = 34
        QTest.keyClicks(self.w, str(value))
        self.assertEqual(self.w.value(), value)


if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    unittest.main()

"""

Output:

"""
======================================================================
FAIL: test_value (__main__.TestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "qtestexample3.py", line 18, in test_value
    self.assertEqual(self.w.value(), value)
AssertionError: 12 != 34

----------------------------------------------------------------------
Ran 1 test in 0.051s

FAILED (failures=1)
"""

It is not clear to me why it happens.
Also the test pass as expected if I remove the initialization line:
self.w.setValue(12)

I also made some attempt to use QTest.qWaitForWindowActive,
QTest.qWaitForWindowExposed and also processEvents, but nothing changes.

Does anybody have an idea about what is the problem?


best regards

-- 
Antonio Valentino