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#encoding: utf-8
import pickle
import unittest
import odil
class TestValue(unittest.TestCase):
def _test_sequences(self, odil_contents, python_contents):
self.assertEqual(len(odil_contents), len(python_contents))
if python_contents and isinstance(python_contents[0], bytearray):
self.assertSequenceEqual(
[bytearray([x for x in item]) for item in odil_contents],
python_contents)
# Access from start
self.assertEqual(bytearray(odil_contents[0]), python_contents[0])
# Access from end
self.assertEqual(bytearray(odil_contents[-1]), python_contents[-1])
# Slice
self.assertSequenceEqual(
[bytearray([x for x in item]) for item in odil_contents[0:-1]],
python_contents[0:-1])
else:
self.assertSequenceEqual(list(odil_contents), list(python_contents))
if python_contents:
# Access from start
self.assertEqual(odil_contents[0], python_contents[0])
# Access from end
self.assertEqual(odil_contents[-1], python_contents[-1])
# Slice
self.assertSequenceEqual(
odil_contents[2:0:-1], python_contents[2:0:-1])
def _test_contents(self, value, contents, type_, accessor):
self.assertEqual(value.type, type_)
self.assertEqual(value.empty(), len(contents) == 0)
self.assertEqual(value.size(), len(contents))
self.assertEqual(len(value), len(contents))
# Polymorphic test
self._test_sequences(value, contents)
# Typed test
self._test_sequences(accessor(value), contents)
if type_ != odil.Value.Type.Integers:
with self.assertRaises(odil.Exception):
value.as_integers()
if type_ != odil.Value.Type.Reals:
with self.assertRaises(odil.Exception):
value.as_reals()
if type_ != odil.Value.Type.Strings:
with self.assertRaises(odil.Exception):
value.as_strings()
if type_ != odil.Value.Type.DataSets:
with self.assertRaises(odil.Exception):
value.as_data_sets()
if type_ != odil.Value.Type.Binary:
with self.assertRaises(odil.Exception):
value.as_binary()
def _test_container(self, contents, type_, accessor):
value = odil.Value(contents)
self._test_contents(value, contents, type_, accessor)
def _test_modify(self, contents, accessor):
# Typed test
value = odil.Value([contents[0]])
if isinstance(contents[0], bytearray):
accessor(value).append(odil.Value.BinaryItem(contents[1]))
else:
accessor(value).append(contents[1])
self._test_sequences(accessor(value), contents[:2])
if isinstance(contents[0], bytearray):
accessor(value)[0] = odil.Value.BinaryItem(contents[1])
else:
accessor(value)[0] = contents[1]
self._test_sequences(accessor(value), [contents[1], contents[1]])
# Polymorphic test
value = odil.Value([contents[0]])
if isinstance(contents[0], bytearray):
value.append(odil.Value.BinaryItem(contents[1]))
else:
value.append(contents[1])
self._test_sequences(value, contents[:2])
if isinstance(contents[0], bytearray):
value[0] = odil.Value.BinaryItem(contents[1])
else:
value[0] = contents[1]
self._test_sequences(value, [contents[1], contents[1]])
def _test_clear(self, contents, type_):
value = odil.Value(contents)
value.clear()
self.assertEqual(value.type, type_)
self.assertTrue(value.empty())
def _test_equality(self, contents_1, contents_2):
value_1 = odil.Value(contents_1)
value_2 = odil.Value(contents_1)
value_3 = odil.Value(contents_2)
value_4 = odil.Value(contents_2)
self.assertTrue(value_1 == value_2)
self.assertFalse(value_1 == value_3)
self.assertFalse(value_1 == value_4)
self.assertFalse(value_1 != value_2)
self.assertTrue(value_1 != value_3)
self.assertTrue(value_1 != value_4)
def _test_pickle(self, contents, accessor):
value = odil.Value(contents)
self.assertSequenceEqual(
accessor(pickle.loads(pickle.dumps(value))), accessor(value))
def _test(self, empty_content, contents, other_contents, type_, accessor):
self._test_container(empty_content, type_, accessor)
self._test_container(contents, type_, accessor)
self._test_modify(contents, accessor)
self._test_clear(contents, type_)
self._test_equality(contents, other_contents)
self._test_pickle(contents, accessor)
def test_integers(self):
self._test(
odil.Value.Integers(), [1234, 5678, 9012], [9012, 3456],
odil.Value.Type.Integers, odil.Value.as_integers)
def test_reals(self):
self._test(
odil.Value.Reals(), [12.34, 56.78, 90.12], [1., 2.],
odil.Value.Type.Reals, odil.Value.as_reals)
def test_strings(self):
self._test(
odil.Value.Strings(),
[b"foo", b"bar", b"baz"], [b"plip", b"plop"],
odil.Value.Type.Strings, odil.Value.as_strings)
def test_data_sets(self):
data_set_1 = odil.DataSet(PatientID=["DJ1234"])
data_set_2 = odil.DataSet(EchoTime=[100])
data_set_3 = odil.DataSet(PixelSpacing=[2.3, 4.5])
self._test(
odil.Value.DataSets(),
[data_set_1, data_set_2, data_set_3], [data_set_2, data_set_1],
odil.Value.Type.DataSets, odil.Value.as_data_sets)
def test_binary(self):
self._test(
odil.Value.Binary(),
[bytearray([0x01, 0x02]), bytearray([0x03]), bytearray([0x04, 0x05])],
[bytearray([0x04]), bytearray([0x05, 0x06])],
odil.Value.Type.Binary, odil.Value.as_binary)
def test_unknown_constructor(self):
class Foo(object): pass
items = [Foo()]
with self.assertRaises(odil.Exception):
odil.Value(items)
class TestValueIntegers(unittest.TestCase):
def test_empty_constructor(self):
data = odil.Value.Integers()
self.assertEqual([x for x in data], [])
def test_sequence_constructor(self):
items = [1, 2, 3]
data = odil.Value.Integers(items)
self.assertEqual([x for x in data], items)
class TestValueReals(unittest.TestCase):
def test_empty_constructor(self):
data = odil.Value.Reals()
self.assertEqual([x for x in data], [])
def test_sequence_constructor(self):
items = [1.1, 2, 3.3]
data = odil.Value.Reals(items)
self.assertEqual([x for x in data], items)
class TestValueStrings(unittest.TestCase):
def test_empty_constructor(self):
data = odil.Value.Strings()
self.assertEqual([x for x in data], [])
def test_sequence_constructor(self):
items = [b"foo", b"bar"]
data = odil.Value.Strings(items)
self.assertEqual([x for x in data], items)
class TestValueDataSets(unittest.TestCase):
def test_empty_constructor(self):
data = odil.Value.DataSets()
self.assertEqual([x for x in data], [])
def test_sequence_constructor(self):
items = [odil.DataSet(), odil.DataSet()]
data = odil.Value.DataSets(items)
self.assertEqual([x for x in data], items)
class TestValueBinary(unittest.TestCase):
def test_empty_constructor(self):
data = odil.Value.Binary()
self.assertEqual([x for x in data], [])
def test_sequence_constructor(self):
items = [odil.Value.BinaryItem([1, 2, 3])]
data = odil.Value.Binary(items)
self.assertEqual([x for x in data[0]], [x for x in items[0]])
def test_buffer(self):
item = odil.Value.BinaryItem([1, 2, 3])
memory_view = item.get_memory_view()
self.assertTrue(isinstance(memory_view, memoryview))
if __name__ == "__main__":
unittest.main()
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