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import os
import unittest
import unittest.mock
import copy
from mcstasscript.instrument_diagram.arrow import Arrow
from mcstasscript.instrument_diagram.box import ComponentBox
from mcstasscript.instrument_diagram.connections import IndexConnection
from mcstasscript.instrument_diagram.connections import Lane
from mcstasscript.instrument_diagram.connections import ConnectionList
from mcstasscript.instrument_diagram.canvas import DiagramCanvas
from mcstasscript.tests.helpers_for_tests import WorkInTestDir
from mcstasscript.interface.instr import McStas_instr
def setup_instr_no_path():
"""
Sets up a neutron instrument without a package_path
"""
with WorkInTestDir() as handler:
instrument = McStas_instr("test_instrument")
return instrument
def setup_populated_instr():
"""
Sets up a neutron instrument with some features used and three components
"""
instr = setup_instr_no_path()
instr.add_parameter("double", "theta")
instr.add_parameter("double", "has_default", value=37)
instr.add_declare_var("double", "two_theta")
instr.append_initialize("two_theta = 2.0*theta;")
A = instr.add_component("first_component", "test_for_reading")
B = instr.add_component("second_component", "test_for_reading")
C = instr.add_component("third_component", "test_for_reading")
D = instr.add_component("fourth_component", "test_for_reading")
B.set_AT(0, RELATIVE=A)
C.set_AT(0, RELATIVE=A)
D.set_AT(0, RELATIVE=B)
return instr
def setup_boxes():
instr = setup_populated_instr()
comp1 = instr.get_component("first_component")
comp2 = instr.get_component("third_component")
return ComponentBox(comp1), ComponentBox(comp2)
class TestInstrumentDiagram(unittest.TestCase):
"""
Instrument diagram is not critical for operation, tests just to ensure it runs
"""
def test_Box_initialize_name(self):
"""
Check that a box can be initialized with a string
"""
name = "ABSOLUTE"
box = ComponentBox(name)
self.assertEqual(box.name, name)
def test_Box_initialize_comp(self):
"""
Check that a box can be initialized with a component object
"""
instr = setup_populated_instr()
comp = instr.get_last_component()
box = ComponentBox(comp)
self.assertEqual(box.name, "fourth_component")
def test_Arrow_initialize(self):
"""
Check that an arrow can be initialized with two Box instances
"""
box1, box2 = setup_boxes()
arrow = Arrow(origin=box1, target=box2, kind="KIND")
self.assertEqual(arrow.origin, box1)
self.assertEqual(arrow.target, box2)
self.assertEqual(arrow.kind, "KIND")
string_box = ComponentBox("string")
arrow = Arrow(origin=box1, target=string_box, kind="KIND_2")
self.assertEqual(arrow.origin, box1)
self.assertEqual(arrow.target, string_box)
self.assertEqual(arrow.kind, "KIND_2")
def test_IndexConnection(self):
"""
Ensure IndexConnections find overlap
"""
A = IndexConnection(2, 8)
B = IndexConnection(9, 10)
C = IndexConnection(5, 7)
self.assertTrue(A.compatible_with(B))
self.assertTrue(B.compatible_with(C))
self.assertFalse(A.compatible_with(C))
def test_Lane(self):
"""
Ensure a lane reports when a connection can be added and saves allowed
"""
lane = Lane()
self.assertTrue(lane.add_connection(2, 8))
self.assertTrue(lane.add_connection(9, 12))
self.assertTrue(lane.add_connection(7, 8)) # Same destination allowed
self.assertFalse(lane.add_connection(3, 9))
# ensure only allowed connections added
self.assertEqual(len(lane.connections), 3)
def test_connection(self):
"""
Ensure connection lists can return included connections and set lanes
"""
c_list = ConnectionList()
box_list = []
name_list = []
for index in range(0,10):
name = "box_" + str(index)
name_list.append(name)
box_list.append(ComponentBox(name))
# Add some connections to list
c_list.add(box_list[0], box_list[5]) # Lane 1 # Connection 0
c_list.add(box_list[6], box_list[8]) # Lane 1 # Connection 1
c_list.add(box_list[1], box_list[7]) # Lane 2 # Connection 2
c_list.add(box_list[3], box_list[6]) # Lane 3 # Connection 3
c_list.add(box_list[0], box_list[8]) # Lane 4 # Connection 4
targets_for_0 = c_list.get_targets_for_origin(box_list[0])
self.assertEqual(targets_for_0, [box_list[5], box_list[8]])
c_list.distribute_lane_numbers(name_list)
connections = c_list.get_connections()
self.assertEqual(connections[0].lane_number, 1)
self.assertEqual(connections[1].lane_number, 1)
self.assertEqual(connections[2].lane_number, 2)
self.assertEqual(connections[3].lane_number, 3)
self.assertEqual(connections[4].lane_number, 4)
def test_DiagramCanvas_initialize(self):
"""
Ensure the DiagramCanvas can be initialized
"""
string_box_0 = ComponentBox("string_0")
string_box_1 = ComponentBox("string_1")
string_box_2 = ComponentBox("string_2")
arrow_0 = Arrow(origin=string_box_1, target=string_box_0)
arrow_1 = Arrow(origin=string_box_2, target=string_box_0)
arrow_0.set_lane(1)
arrow_1.set_lane(1)
left_side_arrows = [arrow_0, arrow_1]
boxes = [string_box_0, string_box_1, string_box_2]
arrow_0 = Arrow(origin=string_box_0, target=string_box_1)
arrow_1 = Arrow(origin=string_box_1, target=string_box_0, kind="JUMP")
arrow_2 = Arrow(origin=string_box_0, target=string_box_2, kind="Union")
arrow_0.set_lane(1)
arrow_1.set_lane(1)
arrow_2.set_lane(2)
right_side_arrows = [arrow_0, arrow_1, arrow_2]
# Get component_categories
with WorkInTestDir() as handler:
instrument = McStas_instr("test_instrument")
component_reader = instrument.component_reader
component_categories = copy.deepcopy(component_reader.component_category)
color_choices = {"AT": "blue", "ROTATED": "red", "JUMP": "black", "GROUP": [0.4, 0.4, 0.4], "Union": "green"}
canvas = DiagramCanvas(left_side_arrows=left_side_arrows, component_boxes=boxes,
right_side_arrows=right_side_arrows,
component_categories=component_categories,
colors=color_choices)
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