def testSelectorWidget(self):
w = QgsNumericFormatSelectorWidget()
spy = QSignalSpy(w.changed)
# should default to a default format
self.assertIsInstance(w.format(), QgsFallbackNumericFormat)
w.setFormat(QgsBearingNumericFormat())
self.assertIsInstance(w.format(), QgsBearingNumericFormat)
self.assertEqual(len(spy), 1)
w.setFormat(QgsBearingNumericFormat())
self.assertEqual(len(spy), 2)
w.setFormat(QgsCurrencyNumericFormat())
self.assertIsInstance(w.format(), QgsCurrencyNumericFormat)
self.assertEqual(len(spy), 3)
QgsApplication.numericFormatRegistry().addFormat(TestFormat())
QgsGui.numericFormatGuiRegistry().addFormatConfigurationWidgetFactory(
'test', TestWidgetFactory())
original = TestFormat()
original.xx = 55
w = QgsNumericFormatSelectorWidget()
w.setFormat(original)
new = w.format()
self.assertEqual(new.xx, 55)
