def create_beamline():
perp_to_floor = 90.0
beam_start = PositionAndAngle(y=0, z=0, angle=-2.5)
s0 = Component("s0", movement_strategy=LinearMovement(0, 0, perp_to_floor))
s1 = Component("s1", movement_strategy=LinearMovement(0, 1, perp_to_floor))
frame_overlap_mirror = ReflectingComponent(
"FOM", movement_strategy=LinearMovement(0, 2, perp_to_floor))
frame_overlap_mirror.enabled = False
polarising_mirror = ReflectingComponent("Polarising mirror",
movement_strategy=LinearMovement(
0, 3, perp_to_floor))
polarising_mirror.enabled = False
s2 = Component("s2", movement_strategy=LinearMovement(0, 4, perp_to_floor))
ideal_sample_point = ReflectingComponent("Ideal Sample Point",
movement_strategy=LinearMovement(
0, 5, perp_to_floor))
s3 = Component("s3", movement_strategy=LinearMovement(0, 6, perp_to_floor))
analyser = ReflectingComponent("analyser",
movement_strategy=LinearMovement(
0, 7, perp_to_floor))
analyser.enabled = False
s4 = Component("s4", movement_strategy=LinearMovement(0, 8, perp_to_floor))
detector = Component("detector",
movement_strategy=LinearMovement(
0, 10, perp_to_floor))
theta = Theta("theta", ideal_sample_point)
beamline = Beamline([
s0, s1, frame_overlap_mirror, polarising_mirror, s2,
ideal_sample_point, s3, analyser, s4, detector
], [theta], [])
beamline.set_incoming_beam(beam_start)
beamline.active_mode = BeamlineMode("NR", ["theta"])
return beamline
def test_GIVEN_unpolarised_mode_and_beamline_parameters_are_set_WHEN_move_THEN_components_move_onto_beam_line(self):
slit2 = Component("s2", LinearMovement(0, z_position=10, angle=90))
ideal_sample_point = ReflectingComponent("ideal_sample_point", LinearMovement(0, z_position=20, angle=90))
detector = Component("detector", LinearMovement(0, z_position=30, angle=90))
components = [slit2, ideal_sample_point, detector]
parameters = [
TrackingPosition("slit2height", slit2),
TrackingPosition("height", ideal_sample_point),
Theta("theta", ideal_sample_point),
TrackingPosition("detectorheight", detector)]
#parameters["detectorAngle": TrackingAngle(detector)
beam = PositionAndAngle(0, 0, -45)
beamline = Beamline(components, parameters, [], [DataMother.BEAMLINE_MODE_NEUTRON_REFLECTION])
beamline.set_incoming_beam(beam)
beamline.active_mode = DataMother.BEAMLINE_MODE_NEUTRON_REFLECTION
beamline.parameter("theta").sp_no_move = 45
beamline.parameter("height").sp_no_move = 0
beamline.parameter("slit2height").sp_no_move = 0
beamline.parameter("detectorheight").sp_no_move = 0
beamline.move = 1
assert_that(slit2.sp_position(), is_(position(Position(-10, 10))))
assert_that(ideal_sample_point.sp_position(), is_(position(Position(-20, 20))))
assert_that(detector.sp_position(), is_(position(Position(-10, 30))))
def test_GIVEN_theta_and_a_set_but_no_move_WHEN_get_changed_THEN_changed_is_true(self):
theta_set = 10.0
sample = ReflectingComponent("sample", movement_strategy=LinearMovement(0, 0, 90))
theta = Theta("theta",sample)
theta.sp_no_move = theta_set
result = theta.sp_changed
assert_that(result, is_(True))
def test_GIVEN_component_parameter_disabled_in_mode_WHEN_parameter_moved_to_THEN_component_is_disabled(self):
super_mirror = ReflectingComponent("super mirror", LinearMovement(z_position=10, y_position=0, angle=90))
super_mirror.enabled = True
sm_enabled = ComponentEnabled("smenabled", super_mirror)
enabled_sp = False
sm_enabled.sp_no_move = enabled_sp
sm_enabled.move = 1
assert_that(sm_enabled.sp_rbv, is_(enabled_sp))
assert_that(super_mirror.enabled, is_(enabled_sp))
def test_GIVEN_a_mode_with_a_two_beamline_parameter_in_WHEN_move_first_THEN_second_beamline_parameter_is_calculated_and_moved_to(self):
angle_to_set = 45.0
ideal_sample_point = ReflectingComponent("ideal_sample_point", LinearMovement(y_position=0, z_position=20, angle=90))
theta = Theta("theta", ideal_sample_point)
super_mirror = ReflectingComponent("super mirror", LinearMovement(y_position=0, z_position=10, angle=90))
smangle = ReflectionAngle("smangle", super_mirror)
beamline_mode = BeamlineMode("mode name", [theta.name, smangle.name])
beamline = Beamline([super_mirror, ideal_sample_point], [smangle, theta], [], [beamline_mode])
beam = PositionAndAngle(0, 0, 0)
theta.sp_no_move = angle_to_set
smangle.sp_no_move = 0
beamline.set_incoming_beam(beam)
beamline.active_mode = beamline_mode
beamline.move = 1
smangle_to_set = -10
smangle.sp = smangle_to_set
assert_that(ideal_sample_point.angle, is_(smangle_to_set*2 + angle_to_set))
def test_GIVEN_theta_WHEN_set_set_point_THEN_sample_hasnt_moved(self):
theta_set = 10.0
sample = ReflectingComponent("sample", movement_strategy=LinearMovement(0, 0, 90))
mirror_pos = -100
sample.angle = mirror_pos
theta = Theta("theta", sample)
theta.sp_no_move = theta_set
assert_that(theta.sp, is_(theta_set))
assert_that(sample.angle, is_(mirror_pos))
def setup_beamline(self, initial_mirror_angle, mirror_position,
beam_start):
jaws = Component("jaws", movement_strategy=LinearMovement(0, 0, 90))
mirror = ReflectingComponent("mirror",
movement_strategy=LinearMovement(
0, mirror_position, 90))
mirror.angle = initial_mirror_angle
jaws3 = Component("jaws3", movement_strategy=LinearMovement(0, 20, 90))
beamline = Beamline([jaws, mirror, jaws3], [], [], [])
beamline.set_incoming_beam(beam_start)
return beamline, mirror
def test_GIVEN_mode_has_initial_value_for_param_not_in_beamline_WHEN_setting_mode_THEN_keyerror_raised(self):
sm_angle = 0.0
super_mirror = ReflectingComponent("super mirror", LinearMovement(z_position=10, y_position=0, angle=90))
super_mirror.angle = sm_angle
smangle = ReflectionAngle("smangle", super_mirror)
smangle.sp_no_move = sm_angle
sp_inits = {"nonsense name": sm_angle}
beamline_mode = BeamlineMode("mode name", [smangle.name], sp_inits)
beamline = Beamline([super_mirror], [smangle], [], [beamline_mode])
with self.assertRaises(KeyError):
beamline.active_mode = beamline_mode
def test_GIVEN_theta_and_a_set_and_move_WHEN_get_changed_THEN_changed_is_false(self):
theta_set = 10.0
sample = ReflectingComponent("sample", movement_strategy=LinearMovement(0, 0, 90))
sample.set_incoming_beam(PositionAndAngle(0, 0, 0))
theta = Theta("theta",sample)
theta.sp_no_move = theta_set
theta.move = 1
result = theta.sp_changed
assert_that(result, is_(False))
def test_GIVEN_a_mode_with_a_single_beamline_parameter_in_WHEN_move_THEN_beamline_parameter_is_calculated_on_move(self):
angle_to_set = 45.0
ideal_sample_point = ReflectingComponent("ideal_sample_point", LinearMovement(y_position=0, z_position=20, angle=90))
theta = Theta("theta", ideal_sample_point)
beamline_mode = BeamlineMode("mode name", [theta.name])
beamline = Beamline([ideal_sample_point], [theta], [], [beamline_mode])
beam = PositionAndAngle(0, 0, 0)
theta.sp_no_move = angle_to_set
beamline.set_incoming_beam(beam)
beamline.active_mode = beamline_mode
beamline.move = 1
assert_that(ideal_sample_point.angle, is_(angle_to_set))
def setUp(self):
beam_start = PositionAndAngle(y=0, z=0, angle=2.5)
s0 = Component("s0", movement_strategy=LinearMovement(0, 0, 90))
s1 = Component("s1", movement_strategy=LinearMovement(0, 1, 90))
frame_overlap_mirror = ReflectingComponent(
"FOM", movement_strategy=LinearMovement(0, 2, 90))
frame_overlap_mirror.enabled = False
self.polarising_mirror = ReflectingComponent(
"Polariser", movement_strategy=LinearMovement(0, 3, 90))
self.polarising_mirror.enabled = False
self.polarising_mirror.angle = 0
s2 = Component("s2", movement_strategy=LinearMovement(0, 4, 90))
self.ideal_sample_point = ReflectingComponent(
"ideal sample point", movement_strategy=LinearMovement(0, 5, 90))
s3 = Component("s3", movement_strategy=LinearMovement(0, 6, 90))
analyser = ReflectingComponent("analyser",
movement_strategy=LinearMovement(
0, 7, 90))
analyser.enabled = False
s4 = Component("s4", movement_strategy=LinearMovement(0, 8, 90))
detector = Component("detector",
movement_strategy=LinearMovement(0, 10, 90))
theta = Theta("theta", self.ideal_sample_point)
theta.sp_no_move = 0
smangle = ReflectionAngle("smangle", self.polarising_mirror)
smangle.sp_no_move = 0
self.nr_mode = BeamlineMode("NR Mode", [theta.name])
self.polarised_mode = BeamlineMode("NR Mode",
[smangle.name, theta.name])
self.beamline = Beamline([
s0, s1, frame_overlap_mirror, self.polarising_mirror, s2,
self.ideal_sample_point, s3, analyser, s4, detector
], [smangle, theta], [], [self.nr_mode, self.polarised_mode])
self.beamline.set_incoming_beam(beam_start)
def test_GIVEN_reflection_angle_WHEN_set_set_point_and_move_THEN_readback_is_as_set_and_sample_is_at_setpoint_postion(self):
angle_set = 10.0
expected_sample_angle = 10.0
sample = ReflectingComponent("sample", movement_strategy=LinearMovement(0, 0, 90))
sample.set_incoming_beam(PositionAndAngle(0, 0, 0))
mirror_pos = -100
sample.angle = mirror_pos
reflection_angle = ReflectionAngle("theta", sample)
reflection_angle.sp_no_move = angle_set
reflection_angle.move = 1
result = reflection_angle.sp_rbv
assert_that(result, is_(angle_set))
assert_that(sample.angle, is_(expected_sample_angle))
def test_GIVEN_theta_set_WHEN_set_point_set_and_move_THEN_readback_is_as_original_value_but_setpoint_is_new_value(self):
original_theta = 1.0
theta_set = 10.0
sample = ReflectingComponent("sample", movement_strategy=LinearMovement(0, 0, 90))
sample.set_incoming_beam(PositionAndAngle(0, 0, 0))
mirror_pos = -100
sample.angle = mirror_pos
theta = Theta("theta", sample)
theta.sp = original_theta
theta.sp_no_move = theta_set
result = theta.sp_rbv
assert_that(result, is_(original_theta))
assert_that(theta.sp, is_(theta_set))
def test_GIVEN_parameter_in_mode_and_not_changed_and_no_previous_parameter_changed_WHEN_moving_beamline_THEN_parameter_unchanged(self):
initial_s2_height = 0.0
super_mirror = ReflectingComponent("sm", LinearMovement(0.0, 10, 90.0))
s2 = Component("s2", LinearMovement(initial_s2_height, 20, 90.0))
sm_angle = ReflectionAngle("smangle", super_mirror, True)
slit2_pos = TrackingPosition("slit2pos", s2, True)
mode = BeamlineMode("both_params", [sm_angle.name, slit2_pos.name])
beamline = Beamline([super_mirror, s2], [sm_angle, slit2_pos], [], [mode])
beamline.set_incoming_beam(PositionAndAngle(0, 0, 0))
beamline.active_mode = mode
beamline.move = 1
assert_that(s2.sp_position().y, is_(initial_s2_height))
def test_GIVEN_mirror_with_input_beam_at_WHEN_get_beam_out_THEN_beam_output_correct(
self, beam_angle, mirror_angle, outgoing_angle):
beam_start = PositionAndAngle(y=0, z=0, angle=beam_angle)
expected = PositionAndAngle(y=0, z=0, angle=outgoing_angle)
mirror = ReflectingComponent("component",
movement_strategy=LinearMovement(
0, 0, 90))
mirror.angle = mirror_angle
mirror.set_incoming_beam(beam_start)
result = mirror.get_outgoing_beam()
assert_that(
result, is_(position_and_angle(expected)),
"beam_angle: {}, mirror_angle: {}".format(beam_angle,
mirror_angle))
def test_GIVEN_mode_has_initial_parameter_value_WHEN_setting_mode_THEN_component_sp_updated_but_rbv_unchanged(self):
sm_angle = 0.0
sm_angle_to_set = 45.0
super_mirror = ReflectingComponent("super mirror", LinearMovement(z_position=10, y_position=0, angle=90))
super_mirror.angle = sm_angle
smangle = ReflectionAngle("smangle", super_mirror)
smangle.sp_no_move = sm_angle
sp_inits = {smangle.name: sm_angle_to_set}
beamline_mode = BeamlineMode("mode name", [smangle.name], sp_inits)
beamline = Beamline([super_mirror], [smangle], [], [beamline_mode])
beamline.set_incoming_beam(PositionAndAngle(0, 0, 0))
beamline.active_mode = beamline_mode
assert_that(smangle.sp, is_(sm_angle_to_set))
assert_that(smangle.sp_changed, is_(True))
assert_that(super_mirror.angle, is_(sm_angle))
def test_GIVEN_angled_mirror_is_disabled_WHEN_get_beam_out_THEN_outgoing_beam_is_incoming_beam(
self):
mirror_z_position = 10
mirror_angle = 15
beam_start = PositionAndAngle(y=0, z=0, angle=0)
expected = beam_start
mirror = ReflectingComponent("component",
movement_strategy=LinearMovement(
0, mirror_z_position, 90))
mirror.angle = mirror_angle
mirror.set_incoming_beam(beam_start)
mirror.enabled = False
result = mirror.get_outgoing_beam()
assert_that(result, is_(position_and_angle(expected)))
def test_GIVEN_mirror_with_input_beam_at_0_deg_and_z0_y0_WHEN_get_beam_out_THEN_beam_output_z_is_zmirror_y_is_ymirror_angle_is_input_angle_plus_device_angle(
self):
mirror_z_position = 10
mirror_angle = 15
beam_start = PositionAndAngle(y=0, z=0, angle=0)
expected = PositionAndAngle(y=0,
z=mirror_z_position,
angle=2 * mirror_angle)
mirror = ReflectingComponent("component",
movement_strategy=LinearMovement(
0, mirror_z_position, 90))
mirror.angle = mirror_angle
mirror.set_incoming_beam(beam_start)
result = mirror.get_outgoing_beam()
assert_that(result, is_(position_and_angle(expected)))
def test_GIVEN_parameter_changed_and_not_in_mode_and_no_previous_parameter_changed_WHEN_moving_beamline_THEN_parameter_moved_to_sp(self):
initial_s2_height = 0.0
target_s2_height = 1.0
super_mirror = ReflectingComponent("sm", LinearMovement(0.0, 10, 90.0))
s2 = Component("s2", LinearMovement(initial_s2_height, 20, 90.0))
sm_angle = ReflectionAngle("smangle", super_mirror)
slit2_pos = TrackingPosition("slit2pos", s2)
empty_mode = BeamlineMode("empty", [])
beamline = Beamline([super_mirror, s2], [sm_angle, slit2_pos], [], [empty_mode])
beamline.set_incoming_beam(PositionAndAngle(0, 0, 0))
beamline.active_mode = empty_mode
slit2_pos.sp_no_move = target_s2_height
beamline.move = 1
assert_that(s2.sp_position().y, is_(target_s2_height))
def test_GIVEN_multiple_components_in_beamline_WHEN_triggering_move_THEN_components_move_at_speed_of_slowest_axis(
self):
sm_angle = 0.0
sm_angle_to_set = 22.5
supermirror = ReflectingComponent("supermirror",
movement_strategy=LinearMovement(
y_position=0.0,
z_position=10.0,
angle=90.0))
sm_height_axis = create_mock_axis("SM:HEIGHT", 0.0, 10.0)
sm_angle_axis = create_mock_axis("SM:ANGLE", sm_angle, 10.0)
supermirror.angle = sm_angle
supermirror_driver = HeightAndAngleDriver(supermirror, sm_height_axis,
sm_angle_axis)
slit_2 = Component("slit_2",
movement_strategy=LinearMovement(y_position=0.0,
z_position=20.0,
angle=90.0))
slit_2_height_axis = create_mock_axis("SLIT2:HEIGHT", 0.0, 10.0)
slit_2_driver = HeightDriver(slit_2, slit_2_height_axis)
slit_3 = Component("slit_3",
movement_strategy=LinearMovement(y_position=0.0,
z_position=30.0,
angle=90.0))
slit_3_height_axis = create_mock_axis("SLIT3:HEIGHT", 0.0, 10.0)
slit_3_driver = HeightDriver(slit_3, slit_3_height_axis)
detector = TiltingJaws(
"jaws",
movement_strategy=LinearMovement(y_position=0.0,
z_position=40.0,
angle=90.0))
detector_height_axis = create_mock_axis("DETECTOR:HEIGHT", 0.0, 10.0)
detector_tilt_axis = create_mock_axis("DETECTOR:TILT", 0.0, 10.0)
detector_driver = HeightAndTiltDriver(detector, detector_height_axis,
detector_tilt_axis)
smangle = ReflectionAngle("smangle", supermirror)
slit_2_pos = TrackingPosition("s2_pos", slit_2)
slit_3_pos = TrackingPosition("s3_pos", slit_3)
det_pos = TrackingPosition("det_pos", detector)
components = [supermirror, slit_2, slit_3, detector]
beamline_parameters = [smangle, slit_2_pos, slit_3_pos, det_pos]
drivers = [
supermirror_driver, slit_2_driver, slit_3_driver, detector_driver
]
mode = BeamlineMode(
"mode name",
[smangle.name, slit_2_pos.name, slit_3_pos.name, det_pos.name])
beamline = Beamline(components, beamline_parameters, drivers, [mode])
beamline.active_mode = mode
beam_start = PositionAndAngle(0.0, 0.0, 0.0)
beamline.set_incoming_beam(beam_start)
slit_2_pos.sp_no_move = 0.0
slit_3_pos.sp_no_move = 0.0
det_pos.sp_no_move = 0.0
# detector angle axis takes longest
expected_max_duration = 4.5
smangle.sp_no_move = sm_angle_to_set
with patch.object(beamline, '_move_drivers') as mock:
beamline.move = 1
mock.assert_called_with(expected_max_duration)