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import io
import os
import unittest.mock
from mcstasscript.interface import instr
def setup_simple_instrument():
Instr = instr.McStas_instr("integration_test_simple")
source = Instr.add_component("source", "Source_div")
source.xwidth = 0.03
source.yheight = 0.01
source.focus_aw = 0.01
source.focus_ah = 0.01
source.E0 = 81.81
source.dE = 1.0
source.flux = 1E10
PSD = Instr.add_component("PSD_1D", "PSDlin_monitor")
PSD.set_AT([0, 0, 1], RELATIVE="source")
PSD.xwidth = 0.1
if Instr.mccode_version > 2:
PSD.nbins = 100
else:
PSD.nx = 100
PSD.yheight = 0.03
PSD.filename = "\"PSD.dat\""
PSD.restore_neutron = 1
return Instr
def setup_simple_instrument_input_path():
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
input_path = os.path.join(THIS_DIR, "test_input_folder")
Instr = instr.McStas_instr("integration_test_simple_input",
input_path=input_path)
source = Instr.add_component("source", "Source_div")
source.xwidth = 0.03
source.yheight = 0.01
source.focus_aw = 0.01
source.focus_ah = 0.01
source.E0 = 81.81
source.dE = 1.0
source.flux = 1E10
if Instr.mccode_version > 2:
PSD = Instr.add_component("PSD_1D", "PSDlin_monitor_3")
else:
PSD = Instr.add_component("PSD_1D", "PSDlin_monitor")
PSD.set_AT([0, 0, 1], RELATIVE="source")
PSD.xwidth = 0.1
if Instr.mccode_version > 2:
PSD.nbins = 100
else:
PSD.nx = 100
PSD.yheight = 0.03
PSD.filename = "\"PSD.dat\""
PSD.restore_neutron = 1
return Instr
def setup_simple_slit_instrument():
Instr = instr.McStas_instr("integration_test_simple")
source = Instr.add_component("source", "Source_div")
source.xwidth = 0.1
source.yheight = 0.01
source.focus_aw = 0.01
source.focus_ah = 0.01
source.E0 = 81.81
source.dE = 1.0
source.flux = 1E10
Instr.add_parameter("slit_offset", value=0)
Slit = Instr.add_component("slit", "Slit")
Slit.set_AT(["slit_offset", 0, 0.5], RELATIVE="source")
Slit.xwidth = 0.01
Slit.yheight = 0.03
PSD = Instr.add_component("PSD_1D", "PSDlin_monitor")
PSD.set_AT([0, 0, 1], RELATIVE="source")
PSD.xwidth = 0.1
if Instr.mccode_version > 2:
PSD.nbins = 100
else:
PSD.nx = 100
PSD.yheight = 0.03
PSD.filename = "\"PSD.dat\""
PSD.restore_neutron = 1
return Instr
class TestSimpleInstrument(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_simple_instrument(self, mock_stdout):
"""
Test that an instrument can run and that the results match
expectations. Here beam in small area in the middle of the
detector.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_simple_instrument()
data = Instr.run_full_instrument(foldername="integration_test_simple",
ncount=1E6, mpi=1,
increment_folder_name=True)
os.chdir(CURRENT_DIR)
intensity_data = data[0].Intensity
# beam should be on pixel 35 to 65
sum_outside_beam = (sum(intensity_data[0:34])
+ sum(intensity_data[66:99]))
sum_inside_beam = sum(intensity_data[35:65])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_simple_instrument_input(self, mock_stdout):
"""
Test that an instrument can run and that the results match
expectations. Here beam in small area in the middle of the
detector.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_simple_instrument_input_path()
foldername = "integration_test_simple_input"
data = Instr.run_full_instrument(foldername=foldername,
ncount=1E6, mpi=1,
increment_folder_name=True)
os.chdir(CURRENT_DIR)
intensity_data = data[0].Intensity
# beam should be on pixel 35 to 65
sum_outside_beam = (sum(intensity_data[0:34])
+ sum(intensity_data[66:99]))
sum_inside_beam = sum(intensity_data[35:65])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
# Check component from input_folder read
self.assertEqual(data[0].metadata.xlabel, "Test")
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_simple_instrument_mpi(self, mock_stdout):
"""
Test that an instrument can run and that the results matches
expectations. Here beam in small area in the middle of the
detector. Running with mpi, 2 cores.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_simple_instrument()
data = Instr.run_full_instrument(foldername="integration_test_mpi",
ncount=1E6, mpi=2,
increment_folder_name=True)
os.chdir(CURRENT_DIR)
intensity_data = data[0].Intensity
# beam should be on pixel 35 to 65
sum_outside_beam = (sum(intensity_data[0:34])
+ sum(intensity_data[66:99]))
sum_inside_beam = sum(intensity_data[35:65])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_slit_instrument(self, mock_stdout):
"""
Test parameters can be controlled through McStasScript. Here
a slit can be moved, but the default value of 0 should be
used.
"""
CURRENT_DIR = os.getcwd()
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(THIS_DIR)
Instr = setup_simple_slit_instrument()
foldername = "integration_test_slit"
data = Instr.run_full_instrument(foldername=foldername,
ncount=2E6, mpi=2,
increment_folder_name=True)
os.chdir(CURRENT_DIR)
intensity_data = data[0].Intensity
# beam should be on pixel 45 to 55
sum_outside_beam = (sum(intensity_data[0:44])
+ sum(intensity_data[56:99]))
sum_inside_beam = sum(intensity_data[45:55])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
@unittest.mock.patch("sys.stdout", new_callable=io.StringIO)
def test_slit_moved_instrument(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_simple_slit_instrument()
data = Instr.run_full_instrument(foldername="integration_test_slit",
ncount=2E6, mpi=2,
increment_folder_name=True,
parameters={"slit_offset": 0.03})
os.chdir(CURRENT_DIR)
intensity_data = data[0].Intensity
# beam should be on pixel 75 to 85
sum_outside_beam = (sum(intensity_data[0:74])
+ sum(intensity_data[86:99]))
sum_inside_beam = sum(intensity_data[75:85])
self.assertTrue(1000*sum_outside_beam < sum_inside_beam)
if __name__ == '__main__':
unittest.main()
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