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import io
import os
import unittest
import unittest.mock
import matplotlib as plt
import threading
from mcstasscript.interface import instr, functions
from mcstasscript.jb_interface.simulation_interface import SimInterface
class FakeChange:
def __init__(self, new=None, old=None, name=None):
self.new = new
self.old = old
self.name = name
def setup_complex_instrument():
"""
Sets up guide system with two guides that are placed next to one
another with separate entrances but converge at the end.
It attempts to use as many McStas keywords and features as possible.
"""
Instr = instr.McStas_instr("integration_test_complex",
author="test_suite",
origin="integration tests")
Instr.add_parameter("guide_width", value=0.03)
Instr.add_parameter("guide_length", value=8.0)
source = Instr.add_component("source", "Source_simple")
source.xwidth = 0.1
source.yheight = 0.01
source.dist = 1.5
source.focus_xw = "3*guide_width"
source.focus_yh = 0.05
source.E0 = 5.0
source.dE = 1.0
source.flux = 1E10
Instr.add_declare_var("int", "guide_choice")
Instr.add_declare_var("double", "source_to_guide_end")
Instr.append_initialize("source_to_guide_end = 1.5 + guide_length;")
after_guide = Instr.add_component("after_guide", "Arm",
AT=[0, 0, "source_to_guide_end"],
RELATIVE="source")
after_guide.append_EXTEND("guide_choice = -1;")
# Add first slit with component methods
slit1 = Instr.add_component("slit1", "Slit")
slit1.set_AT(["1.3*guide_width", 0, 1.5], RELATIVE="source")
slit1.xwidth = "guide_width"
slit1.yheight = 0.05
slit1.append_EXTEND("if (SCATTERED) {")
slit1.append_EXTEND(" guide_choice = 1;")
slit1.append_EXTEND("}")
slit1.set_GROUP("entrance_slits")
# Add second slit with set_parameters
slit2 = Instr.add_component("slit2", "Slit")
slit2.set_AT(["-1.3*guide_width", 0, 1.5])
slit2.set_RELATIVE("source")
slit2.set_parameters(xwidth="guide_width", yheight=0.05)
slit2.append_EXTEND("if (SCATTERED) {")
slit2.append_EXTEND(" guide_choice = 2;")
slit2.append_EXTEND("}")
slit2.set_GROUP("entrance_slits")
select1 = Instr.add_component("select1", "Arm", RELATIVE="after_guide")
select1.set_JUMP("select2 WHEN guide_choice == 2")
guide1 = Instr.add_component("guide1", "Guide_gravity")
guide1.set_AT([0, 0, 0.1], RELATIVE="slit1")
guide1.set_ROTATED([0, "-RAD2DEG*atan(0.5*guide_width/guide_length)", 0],
RELATIVE="slit1")
guide1.w1 = "guide_width"
guide1.w2 = "1.3*guide_width"
guide1.h1 = 0.05
guide1.h2 = 0.05
guide1.l = "guide_length"
guide1.m = 4
guide1.G = -9.82
select2 = Instr.add_component("select2", "Arm", RELATIVE="after_guide")
select2.set_JUMP("done WHEN guide_choice == 1")
guide2 = Instr.add_component("guide2", "Guide_gravity")
guide2.set_AT([0, 0, 0.1], RELATIVE="slit2")
guide2.set_ROTATED([0, "RAD2DEG*atan(0.5*guide_width/guide_length)", 0],
RELATIVE="slit2")
guide2.w1 = "guide_width"
guide2.w2 = "1.3*guide_width"
guide2.h1 = 0.05
guide2.h2 = 0.05
guide2.l = "guide_length"
guide2.m = 4
guide2.G = -9.82
guide2.set_SPLIT = 2
Instr.add_component("done", "Arm", RELATIVE="after_guide")
PSD1 = Instr.add_component("PSD_1D_1", "PSDlin_monitor")
PSD1.set_AT([0, 0, 0.2], RELATIVE="after_guide")
PSD1.xwidth = 0.1
if Instr.mccode_version > 2:
PSD1.nbins = 100
else:
PSD1.nx = 100
PSD1.yheight = 0.03
PSD1.filename = "\"PSD1.dat\""
PSD1.restore_neutron = 1
PSD1.set_WHEN("guide_choice == 1")
PSD2 = Instr.add_component("PSD_1D_2", "PSDlin_monitor")
PSD2.set_AT([0, 0, 0.2], RELATIVE="after_guide")
PSD2.xwidth = 0.1
if Instr.mccode_version > 2:
PSD2.nbins = 100
else:
PSD2.nx = 100
PSD2.yheight = 0.03
PSD2.filename = "\"PSD2.dat\""
PSD2.restore_neutron = 1
PSD2.set_WHEN("guide_choice == 2")
PSD = Instr.add_component("PSD_1D", "PSDlin_monitor")
PSD.set_AT([0, 0, 0.2], RELATIVE="after_guide")
PSD.xwidth = 0.1
if Instr.mccode_version > 2:
PSD.nbins = 100
else:
PSD.nx = 100
PSD.yheight = 0.03
PSD.filename = "\"PSD_all.dat\""
PSD.restore_neutron = 1
Instr.append_finally("guide_choice = -1;")
return Instr
class TestComplexInstrument(unittest.TestCase):
"""
Integration test of a full instrument with McStas simulation
performed by the system. The configuration file needs to be set up
correctly in order for these tests to succeed.
"""
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_complex_instrument_run(self, mock_stdout):
"""
Test parameters can be controlled through McStasScript. Here
a slit is moved to one side and the result is verified.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_complex_instrument()
data = Instr.run_full_instrument(foldername="integration_test_complex",
ncount=2E6, mpi=2,
increment_folder_name=True,
parameters={"guide_width": 0.03,
"guide_length": 8.0})
os.chdir(CURRENT_DIR)
intensity_data_pos = functions.name_search("PSD_1D_1", data).Intensity
sum_outside_beam = sum(intensity_data_pos[0:50])
sum_inside_beam = sum(intensity_data_pos[51:99])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
intensity_data_neg = functions.name_search("PSD_1D_2", data).Intensity
sum_outside_beam = sum(intensity_data_neg[51:99])
sum_inside_beam = sum(intensity_data_neg[0:50])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
intensity_data_all = functions.name_search("PSD_1D", data).Intensity
sum_outside_beam = sum(intensity_data_all[49:51])
sum_inside_beam = (sum(intensity_data_all[0:45])
+ sum(intensity_data_all[56:99]))
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
# Could have the plot window up for some short time
# Need to use plt.draw instead of plt.show in plotter
# plotter.make_sub_plot(data)
# time.sleep(10)
# plt.close()
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_complex_instrument_interface(self, mock_stdout):
"""
Test that a simulation can be performed through the simulation
interface, or as close as I can through scripting.
Need to join the simulation thread to the main thread in order
to wait for the completion as it is performed in a new thread.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_complex_instrument()
interface = SimInterface(Instr)
interface.show_interface()
change = FakeChange()
"""
interface.run_simulation_thread(change)
for thread in threading.enumerate():
if thread.name != "MainThread":
thread.join()
"""
interface.run_simulation_live(change)
data = interface.plot_interface.data
os.chdir(CURRENT_DIR)
print(data)
intensity_data_pos = functions.name_search("PSD_1D_1", data).Intensity
sum_outside_beam = sum(intensity_data_pos[0:50])
sum_inside_beam = sum(intensity_data_pos[51:99])
self.assertTrue(1000 * sum_outside_beam < sum_inside_beam)
intensity_data_neg = functions.name_search("PSD_1D_2", data).Intensity
sum_outside_beam = sum(intensity_data_neg[51:99])
sum_inside_beam = sum(intensity_data_neg[0:50])
self.assertTrue(1000 * sum_outside_beam < sum_inside_beam)
intensity_data_all = functions.name_search("PSD_1D", data).Intensity
sum_outside_beam = sum(intensity_data_all[49:51])
sum_inside_beam = (sum(intensity_data_all[0:45])
+ sum(intensity_data_all[56:99]))
self.assertTrue(1000 * sum_outside_beam < sum_inside_beam)
if __name__ == '__main__':
unittest.main()
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