def test_GIVEN_user_function_engineering_correction_which_throws_WHEN_set_value_on_axis_THEN_0_correction(self):
def _test_correction(setpoint):
raise TypeError()
engineering_correction = UserFunctionCorrection(_test_correction)
result = engineering_correction.to_axis(0)
assert_that(result, is_(close_to(0, FLOAT_TOLERANCE)))
def test_GIVEN_user_function_engineering_correction_which_adds_no_correction_WHEN_set_value_on_axis_THEN_value_is_same_as_set(self):
def _test_correction(setpoint):
return 0
value = 1
expected_correction = value
engineering_correction = UserFunctionCorrection(_test_correction)
result = engineering_correction.to_axis(value)
assert_that(result, is_(close_to(expected_correction, FLOAT_TOLERANCE)))
def test_GIVEN_user_function_engineering_correction_which_adds_a_correction_of_the_setpoint_on_WHEN_set_value_on_axis_THEN_value_is_double_what_was_set(self):
def _test_correction(setpoint):
"""Correction is the same as the setpoint so it doubles the correction"""
return setpoint
value = 1
expected_correction = value*2
engineering_correction = UserFunctionCorrection(_test_correction)
result = engineering_correction.to_axis(value)
assert_that(result, is_(close_to(expected_correction, FLOAT_TOLERANCE)))
def test_GIVEN_user_function_engineering_correction_which_adds_setpoint_and_beamline_param_WHEN_set_value_on_axis_THEN_value_is_twice_value_plus_beamline_parameter_value(self):
def _test_correction(setpoint, beamline_parameter):
return setpoint + beamline_parameter
parameter_value = 2
comp = Component("param_comp", setup=PositionAndAngle(0, 0, 90))
beamline_parameter = AxisParameter("param", comp, ChangeAxis.POSITION)
beamline_parameter.sp = parameter_value
value = 1
expected_correction = value * 2 + parameter_value
engineering_correction = UserFunctionCorrection(_test_correction, beamline_parameter)
result = engineering_correction.to_axis(value)
assert_that(result, is_(close_to(expected_correction, FLOAT_TOLERANCE)))