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import unittest
import unittest.mock
from mcstasscript.helper.mcstas_objects import DeclareVariable
class Test_DeclareVariable(unittest.TestCase):
"""
Tests the DeclareVariable class that holds a declared variable
that will be written to the McStas declare section.
"""
def test_DeclareVariable_init_basic_type(self):
"""
Initialization with a type
"""
var = DeclareVariable("double", "test")
self.assertEqual(var.name, "test")
self.assertEqual(var.type, "double")
def test_DeclareVariable_init_basic_type_value(self):
"""
Initialization with type and value
"""
var = DeclareVariable("double", "test", value=518)
self.assertEqual(var.name, "test")
self.assertEqual(var.type, "double")
self.assertEqual(var.value, 518)
def test_DeclareVariable_init_basic_type_vector(self):
"""
Initialization with type and value
"""
var = DeclareVariable("double", "test",
array=6, value=[1, 2.2, 3, 3.3, 4, 4.4])
self.assertEqual(var.name, "test")
self.assertEqual(var.type, "double") # space for easier writing
self.assertEqual(var.vector, 6)
self.assertEqual(var.value, [1, 2.2, 3, 3.3, 4, 4.4])
def test_DeclareVariable_init_basic_type_value_comment(self):
"""
Initialization with type, value and comment
"""
var = DeclareVariable("double", "test",
value=518, comment="test comment /")
self.assertEqual(var.name, "test")
self.assertEqual(var.type, "double") # Space for easier writing
self.assertEqual(var.value, 518)
self.assertEqual(var.comment, " // test comment /")
@unittest.mock.patch('__main__.__builtins__.open',
new_callable=unittest.mock.mock_open)
def test_DeclareVariable_write_basic(self, mock_f):
"""
Testing that write to file is correct. Here a line is in a
instrument declare section. The write file operation is
mocked and check using a patch. Here a simple declare is
used.
"""
var = DeclareVariable("double", "test")
with mock_f('test.txt', 'w') as m_fo:
var.write_line(m_fo)
mock_f.assert_called_with('test.txt', 'w')
handle = mock_f()
handle.write.assert_called_once_with("double test;")
@unittest.mock.patch('__main__.__builtins__.open',
new_callable=unittest.mock.mock_open)
def test_DeclareVariable_write_complex_float(self, mock_f):
"""
Testing that write to file is correct. Here a line is in an
instrument declare section. The write file operation is
mocked and check using a patch. Here a declare with a value
is used. (float value)
"""
var = DeclareVariable("double",
"test",
value=5.4,
comment="test comment")
with mock_f('test.txt', 'w') as m_fo:
var.write_line(m_fo)
expected_write = "double test = 5.4; // test comment"
mock_f.assert_called_with('test.txt', 'w')
handle = mock_f()
handle.write.assert_called_once_with(expected_write)
@unittest.mock.patch('__main__.__builtins__.open',
new_callable=unittest.mock.mock_open)
def test_DeclareVariable_write_complex_int(self, mock_f):
"""
Testing that write to file is correct. Here a line is in an
instrument declare section. The write file operation is
mocked and check using a patch. Here a declare with a value
is used. (integer value)
"""
var = DeclareVariable("double",
"test",
value=5,
comment="test comment")
with mock_f('test.txt', 'w') as m_fo:
var.write_line(m_fo)
expected_write = "double test = 5; // test comment"
mock_f.assert_called_with('test.txt', 'w')
handle = mock_f()
handle.write.assert_called_once_with(expected_write)
@unittest.mock.patch('__main__.__builtins__.open',
new_callable=unittest.mock.mock_open)
def test_DeclareVariable_write_simple_array(self, mock_f):
"""
Testing that write to file is correct. Here a line is in an
instrument declare section. The write file operation is
mocked and check using a patch. Here an array is declared.
"""
var = DeclareVariable("double",
"test",
array=29,
comment="test comment")
with mock_f('test.txt', 'w') as m_fo:
var.write_line(m_fo)
expected_write = "double test[29]; // test comment"
mock_f.assert_called_with('test.txt', 'w')
handle = mock_f()
handle.write.assert_called_once_with(expected_write)
@unittest.mock.patch('__main__.__builtins__.open',
new_callable=unittest.mock.mock_open)
def test_DeclareVariable_write_complex_array(self, mock_f):
"""
Testing that write to file is correct. Here a line is in an
instrument declare section. The write file operation is
mocked and check using a patch. Here an array is declared and
populated with the selected values.
"""
var = DeclareVariable("double",
"test",
array=3,
value=[5, 4, 3.1],
comment="test comment")
with mock_f('test.txt', 'w') as m_fo:
var.write_line(m_fo)
expected_writes = [unittest.mock.call("double test[3] = {"),
unittest.mock.call("5,"),
unittest.mock.call("4,"),
unittest.mock.call("3.1}; // test comment")]
mock_f.assert_called_with('test.txt', 'w')
handle = mock_f()
handle.write.assert_has_calls(expected_writes, any_order=False)
if __name__ == '__main__':
unittest.main()
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