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import os
import sys
import unittest
from mcstasscript.interface import instr
from mcstasscript.instr_reader import control
def blockPrint():
"""
Disables print capability
"""
sys.stdout = open(os.devnull, 'w')
def enablePrint():
"""
Restores print capability
"""
sys.stdout = sys.__stdout__
def set_dummy_dir():
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
os.chdir(os.path.join(THIS_DIR, "dummy_instrument_folder"))
def setup_standard(Instr):
set_dummy_dir()
filename = "Union_demonstration_test.instr"
InstrReader = control.InstrumentReader(filename)
InstrReader.add_to_instr(Instr)
return InstrReader
def setup_standard_auto_instr():
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
return setup_standard(Instr)
class TestInstrReader(unittest.TestCase):
def test_read_instrument_name(self):
"""
Check if the instrument name is read correctly
"""
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
filename = "Union_demonstration_test.instr"
InstrReader = control.InstrumentReader(filename)
InstrReader.add_to_instr(Instr)
self.assertEqual(InstrReader.instr_name, "Union_demonstration")
def test_read_input_parameter(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
parameter_list = list(Instr.parameters)
self.assertEqual(parameter_list[0].name, "stick_displacement")
# space in type inserted for easier writing by McStas_Instr class
self.assertEqual(parameter_list[0].type, "double")
self.assertEqual(parameter_list[0].value, 0)
self.assertEqual(parameter_list[1].name, "test_int")
# space in type inserted for easier writing by McStas_Instr class
self.assertEqual(parameter_list[1].type, "int")
self.assertEqual(parameter_list[1].value, 3)
self.assertEqual(parameter_list[2].name, "test_str")
# space in type inserted for easier writing by McStas_Instr class
self.assertEqual(parameter_list[2].type, "string")
self.assertEqual(parameter_list[2].value, "\"hurray\"")
def test_read_declare_parameter(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
self.assertEqual(Instr.declare_list[0].name, "sample_1_index")
self.assertEqual(Instr.declare_list[0].type, "int")
self.assertEqual(Instr.declare_list[0].value, 27)
self.assertEqual(Instr.declare_list[8].name, "array")
self.assertEqual(Instr.declare_list[8].type, "double")
self.assertEqual(Instr.declare_list[8].vector, 3)
self.assertEqual(Instr.declare_list[8].value, [0.1, 0.2, 0.3])
self.assertEqual(Instr.declare_list[9].name, "I_array")
self.assertEqual(Instr.declare_list[9].type, "int")
self.assertEqual(Instr.declare_list[9].vector, 4)
self.assertEqual(Instr.declare_list[10].name, "T_array")
self.assertEqual(Instr.declare_list[10].type, "int")
self.assertEqual(Instr.declare_list[10].vector, 5)
self.assertEqual(Instr.declare_list[10].value, [1, 2, 3, 4, 5])
self.assertEqual(Instr.declare_list[11].name, "home")
self.assertEqual(Instr.declare_list[11].type, "char")
self.assertEqual(Instr.declare_list[11].vector, 20)
self.assertEqual(Instr.declare_list[11].value,
"\\\"test_string\\\"")
def test_read_initialize_line(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
initialize = ("// Start of initialize for generated test_instrument\n"
+ "I_array[2] = 8;\n"
+ "printf(\"Hello world\\n\");\n")
self.assertEqual(Instr.initialize_section, initialize)
# Check a few components are read correctly
def test_read_component_1(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "Al":
test_component = component
self.assertEqual(test_component.component_name, "Union_make_material")
val = getattr(test_component, "my_absorption")
self.assertEqual(val, "100*4*0.231/66.4")
val = getattr(test_component, "process_string")
self.assertEqual(val, "\"Al_incoherent,Al_powder\"")
self.assertEqual(test_component.AT_data, ["0", "0", "0"])
self.assertEqual(test_component.AT_relative, "ABSOLUTE")
self.assertEqual(test_component.ROTATED_data, [0, 0, 0])
self.assertEqual(test_component.ROTATED_relative, "ABSOLUTE")
def test_read_component_2(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "sample_holder3":
test_component = component
self.assertEqual(test_component.component_name, "Union_box")
val = getattr(test_component, "xwidth")
self.assertEqual(val, "0.0098")
val = getattr(test_component, "priority")
self.assertEqual(val, "52")
self.assertEqual(test_component.AT_data,
["0", "-0.03", "-0.03*0.35-0.004"])
self.assertEqual(test_component.AT_relative,
"RELATIVE sample_rod_bottom")
self.assertEqual(test_component.ROTATED_data, ["-25", "0", "0"])
self.assertEqual(test_component.ROTATED_relative,
"RELATIVE sample_rod_bottom")
def test_read_component_WHEN(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "outer_cryostat_vacuum":
test_component = component
self.assertEqual(test_component.component_name, "Union_cylinder")
val = getattr(test_component, "radius")
self.assertEqual(val, "0.09")
val = getattr(test_component, "priority")
self.assertEqual(val, "11")
self.assertEqual(test_component.WHEN, "WHEN (necessary == 1 )")
self.assertEqual(test_component.AT_data, ["0", "0.01", "0"])
self.assertEqual(test_component.AT_relative, "RELATIVE beam_center")
self.assertEqual(test_component.ROTATED_data, ["0", "0", "0"])
self.assertEqual(test_component.ROTATED_relative,
"RELATIVE beam_center")
def test_read_component_EXTEND(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "test_sample":
test_component = component
self.assertEqual(test_component.component_name, "Union_master")
val = getattr(test_component, "history_limit")
self.assertEqual(val, "1000000")
lines = test_component.EXTEND.split("\n")
line0 = ("if (scattered_flag[sample_1_index] > 0) scattered_1 = 1;"
+ " else scattered_1 = 0;")
line1 = ("if (scattered_flag[sample_2_index] > 0) scattered_2 = 1;"
+ " else scattered_2 = 0;")
line2 = ("if (scattered_flag[sample_3_index] > 0) scattered_3 = 1;"
+ " else scattered_3 = 0;")
line3 = ("if (scattered_flag[sample_4_index] > 0) scattered_4 = 1;"
+ " else scattered_4 = 0;")
self.assertEqual(lines[0], line0)
self.assertEqual(lines[1], line1)
self.assertEqual(lines[2], line2)
self.assertEqual(lines[3], line3)
self.assertEqual(test_component.AT_data, ["0", "0", "0"])
self.assertEqual(test_component.AT_relative, "RELATIVE beam_center")
self.assertEqual(test_component.ROTATED_data, ["0", "0", "0"])
self.assertEqual(test_component.ROTATED_relative,
"RELATIVE beam_center")
def test_read_component_GROUP(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "armA":
test_component = component
self.assertEqual(test_component.component_name, "Arm")
self.assertEqual(test_component.GROUP, "arms")
self.assertEqual(test_component.AT_data, ["0", "0", "0"])
self.assertEqual(test_component.AT_relative, "ABSOLUTE")
def test_read_component_SPLIT(self):
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "sample_4_container":
test_component = component
self.assertEqual(test_component.component_name, "Union_cylinder")
self.assertEqual(test_component.AT_data, ["0", "0", "0"])
self.assertEqual(test_component.AT_relative, "RELATIVE sample_4")
def test_read_component_JUMP(self):
"""
Check a JUMP and GROUP statement is read correctly
"""
set_dummy_dir()
blockPrint()
Instr = instr.McStas_instr("test_instrument")
enablePrint()
setup_standard(Instr)
components = Instr.component_list
test_component = None
for component in components:
if component.name == "armB":
test_component = component
self.assertEqual(test_component.component_name, "Arm")
self.assertEqual(test_component.GROUP, "arms")
self.assertEqual(test_component.JUMP, "myself 2")
self.assertEqual(test_component.AT_data, ["0", "0", "0"])
self.assertEqual(test_component.AT_relative, "ABSOLUTE")
def test_comma_split(self):
"""
Test the Tracer_reader._split_func
"""
InstrReader = setup_standard_auto_instr()
test_string = "A,B,C,D(a,b),E"
result = InstrReader.Trace_reader._split_func(test_string, ",")
self.assertEqual(result[0], "A")
self.assertEqual(result[1], "B")
self.assertEqual(result[2], "C")
self.assertEqual(result[3], "D(a,b)")
self.assertEqual(result[4], "E")
def test_comma_split_limited(self):
"""
Test the Tracer_reader._split_func
"""
InstrReader = setup_standard_auto_instr()
test_string = "A,B,C,D(a,b),E"
result = InstrReader.Trace_reader._split_func(test_string, ",", 2)
self.assertEqual(result[0], "A")
self.assertEqual(result[1], "B")
self.assertEqual(result[2], "C,D(a,b),E")
def test_parenthesis_split(self):
"""
Test the Tracer_reader._split_func
"""
InstrReader = setup_standard_auto_instr()
test_string = "A)B)C)D(a,b))E"
result = InstrReader.Trace_reader._split_func(test_string, ")")
self.assertEqual(result[0], "A")
self.assertEqual(result[1], "B")
self.assertEqual(result[2], "C")
self.assertEqual(result[3], "D(a,b)")
self.assertEqual(result[4], "E")
def test_comma_split_brack(self):
"""
Test the Tracer_reader._split_func
"""
InstrReader = setup_standard_auto_instr()
test_string = "A,B{C,D(a,b)},E"
result = InstrReader.Trace_reader._split_func_brack(test_string, ",")
self.assertEqual(result[0], "A")
self.assertEqual(result[1], "B{C,D(a,b)}")
self.assertEqual(result[2], "E")
if __name__ == '__main__':
unittest.main()
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