def test_combobox():
cb = pg.ComboBox()
items = {'a': 1, 'b': 2, 'c': 3}
cb.setItems(items)
cb.setValue(2)
assert str(cb.currentText()) == 'b'
assert cb.value() == 2
# Clear item list; value should be None
cb.clear()
assert cb.value() == None
# Reset item list; value should be set automatically
cb.setItems(items)
assert cb.value() == 2
# Clear item list; repopulate with same names and new values
items = {'a': 4, 'b': 5, 'c': 6}
cb.clear()
cb.setItems(items)
assert cb.value() == 5
# Set list instead of dict
cb.setItems(list(items.keys()))
assert str(cb.currentText()) == 'b'
cb.setValue('c')
assert cb.value() == str(cb.currentText())
assert cb.value() == 'c'
cb.setItemValue('c', 7)
assert cb.value() == 7
# Reset item list; value should be set automatically
cb.setItems(items)
assert cb.value() == 2
# Clear item list; repopulate with same names and new values
items = {'a': 4, 'b': 5, 'c': 6}
cb.clear()
cb.setItems(items)
assert cb.value() == 5
# Set list instead of dict
cb.setItems(list(items.keys()))
assert str(cb.currentText()) == 'b'
cb.setValue('c')
assert cb.value() == str(cb.currentText())
assert cb.value() == 'c'
cb.setItemValue('c', 7)
assert cb.value() == 7
if __name__ == '__main__':
cb = pg.ComboBox()
cb.show()
cb.setItems({'': None, 'a': 1, 'b': 2, 'c': 3})
def fn(ind):
print("New value: %s" % cb.value())
cb.currentIndexChanged.connect(fn)