def test_delay_callback_not_called_if_unmodified():
test = MagicMock()
stub = Stub()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
pass
assert test.call_count == 0
def test_delay_callback_not_called_if_unmodified():
test = MagicMock()
stub = Stub()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
pass
assert test.call_count == 0
def test_remove_callback():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
remove_callback(stub, 'prop1', test)
stub.prop1 = 5
assert test.call_count == 0
def test_remove_callback():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
remove_callback(stub, 'prop1', test)
stub.prop1 = 5
assert test.call_count == 0
def test_callback_with_two_arguments():
stub = Stub()
stub.prop1 = 5
on_change = MagicMock()
add_callback(stub, 'prop1', on_change, echo_old=True)
stub.prop1 = 10
on_change.assert_called_once_with(5, 10)
def test_remove_callback_wrong_function():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
with pytest.raises(ValueError) as exc:
remove_callback(stub, 'prop1', test2)
assert exc.value.args[0].startswith('Callback function not found')
def test_remove_callback_wrong_function():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
with pytest.raises(ValueError) as exc:
remove_callback(stub, 'prop1', test2)
assert exc.value.args[0].startswith('Callback function not found')
def test_callbacks_only_called_on_value_change():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
stub.prop1 = 5
test.assert_called_once_with(5)
stub.prop1 = 5
assert test.call_count == 1
def test_callbacks_only_called_on_value_change():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
stub.prop1 = 5
test.assert_called_once_with(5)
stub.prop1 = 5
assert test.call_count == 1
def test_callback_with_two_arguments():
stub = Stub()
stub.prop1 = 5
on_change = MagicMock()
add_callback(stub, 'prop1', on_change, echo_old=True)
stub.prop1 = 10
on_change.assert_called_once_with(5, 10)
def connect_color(client, prop, widget):
def update_widget(text):
widget.setColor(text)
def update_prop():
setattr(client, prop, widget.color())
add_callback(client, prop, update_widget)
widget.colorChanged.connect(nonpartial(update_prop))
update_widget(getattr(client, prop))
def test_delay_callback():
test = MagicMock()
stub = Stub()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
stub.prop1 = 100
stub.prop1 = 200
stub.prop1 = 300
assert test.call_count == 0
test.assert_called_once_with(300)
def test_decorator_form():
stub = DecoratorStub()
test = MagicMock()
add_callback(stub, 'prop', test)
assert stub.prop == 2
stub.prop = 5
test.assert_called_once_with(10)
assert stub.prop == 10
def test_delay_callback():
test = MagicMock()
stub = Stub()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
stub.prop1 = 100
stub.prop1 = 200
stub.prop1 = 300
assert test.call_count == 0
test.assert_called_once_with(300)
def test_decorator_form():
stub = DecoratorStub()
test = MagicMock()
add_callback(stub, 'prop', test)
assert stub.prop == 2
stub.prop = 5
test.assert_called_once_with(10)
assert stub.prop == 10
def test_delay_only_calls_if_changed():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
pass
assert test.call_count == 0
val = stub.prop1
with delay_callback(stub, 'prop1'):
stub.prop1 = val
assert test.call_count == 0
def test_delay_only_calls_if_changed():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
with delay_callback(stub, 'prop1'):
pass
assert test.call_count == 0
val = stub.prop1
with delay_callback(stub, 'prop1'):
stub.prop1 = val
assert test.call_count == 0
def test_disable_callback():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
Stub.prop1.disable(stub)
stub.prop1 = 100
assert test.call_count == 0
Stub.prop1.enable(stub)
stub.prop1 = 100
assert test.call_count == 0 # not changed
stub.prop1 = 200
assert test.call_count == 1
def test_disable_callback():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
Stub.prop1.disable(stub)
stub.prop1 = 100
assert test.call_count == 0
Stub.prop1.enable(stub)
stub.prop1 = 100
assert test.call_count == 0 # not changed
stub.prop1 = 200
assert test.call_count == 1
def test_ignore_global_callback_stub():
# Make sure that adding the global callback ignore functionality doesn't
# break things when we are dealing with a plain class without HasCallbackProperties
stub = Stub()
test1 = MagicMock()
add_callback(stub, 'prop1', test1)
with ignore_callback(stub, 'prop1'):
stub.prop1 = 100
assert test1.call_count == 0
assert test1.call_count == 0
def test_ignore_global_callback_stub():
# Make sure that adding the global callback ignore functionality doesn't
# break things when we are dealing with a plain class without HasCallbackProperties
stub = Stub()
test1 = MagicMock()
add_callback(stub, 'prop1', test1)
with ignore_callback(stub, 'prop1'):
stub.prop1 = 100
assert test1.call_count == 0
assert test1.call_count == 0
def test_ignore_multiple():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
add_callback(stub, 'prop2', test2)
with ignore_callback(stub, 'prop1', 'prop2'):
stub.prop1 = 100
stub.prop2 = 200
assert test.call_count == 0
assert test2.call_count == 0
assert test.call_count == 0
assert test2.call_count == 0
def test_ignore_multiple():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
add_callback(stub, 'prop2', test2)
with ignore_callback(stub, 'prop1', 'prop2'):
stub.prop1 = 100
stub.prop2 = 200
assert test.call_count == 0
assert test2.call_count == 0
assert test.call_count == 0
assert test2.call_count == 0
def test_delay_multiple():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
add_callback(stub, 'prop2', test2)
with delay_callback(stub, 'prop1', 'prop2'):
stub.prop1 = 50
stub.prop1 = 100
stub.prop2 = 200
assert test.call_count == 0
assert test2.call_count == 0
test.assert_called_once_with(100)
test2.assert_called_once_with(200)
def test_delay_multiple():
stub = Stub()
test = MagicMock()
test2 = MagicMock()
add_callback(stub, 'prop1', test)
add_callback(stub, 'prop2', test2)
with delay_callback(stub, 'prop1', 'prop2'):
stub.prop1 = 50
stub.prop1 = 100
stub.prop2 = 200
assert test.call_count == 0
assert test2.call_count == 0
test.assert_called_once_with(100)
test2.assert_called_once_with(200)
def test_add_callback_type_error_if_not_calllback():
stub = Stub()
with pytest.raises(TypeError) as exc:
add_callback(stub, 'prop3', None)
assert exc.value.args[0] == "prop3 is not a CallbackProperty"
def test_add_callback_attribute_error_on_bad_name():
stub = Stub()
with pytest.raises(AttributeError):
add_callback(stub, 'bad_property', None)
def test_callbacks_are_instance_specific():
s1, s2 = Stub(), Stub()
test = MagicMock()
add_callback(s2, 'prop1', test)
s1.prop1 = 100
assert test.call_count == 0
def test_callback_fire_on_change():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
stub.prop1 = 5
test.assert_called_once_with(5)
def test_callback_fire_on_change():
stub = Stub()
test = MagicMock()
add_callback(stub, 'prop1', test)
stub.prop1 = 5
test.assert_called_once_with(5)
def test_add_callback_attribute_error_on_bad_name():
stub = Stub()
with pytest.raises(AttributeError):
add_callback(stub, 'bad_property', None)
def test_add_callback_type_error_if_not_calllback():
stub = Stub()
with pytest.raises(TypeError) as exc:
add_callback(stub, 'prop3', None)
assert exc.value.args[0] == "prop3 is not a CallbackProperty"
def test_callbacks_are_instance_specific():
s1, s2 = Stub(), Stub()
test = MagicMock()
add_callback(s2, 'prop1', test)
s1.prop1 = 100
assert test.call_count == 0
