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# Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the 'License'). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# https://aws.amazon.com/apache2.0/
#
# or in the 'license' file accompanying this file. This file is
# distributed on an 'AS IS' BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
from decimal import Decimal
import pytest
from boto3.dynamodb.types import Binary, TypeDeserializer, TypeSerializer
from tests import unittest
class TestBinary(unittest.TestCase):
def test_bytes_input(self):
data = Binary(b'\x01')
assert b'\x01' == data
assert b'\x01' == data.value
def test_non_ascii_bytes_input(self):
# Binary data that is out of ASCII range
data = Binary(b'\x88')
assert b'\x88' == data
assert b'\x88' == data.value
def test_bytearray_input(self):
data = Binary(bytearray([1]))
assert b'\x01' == data
assert b'\x01' == data.value
def test_unicode_throws_error(self):
with pytest.raises(TypeError):
Binary('\u00e9')
def test_integer_throws_error(self):
with pytest.raises(TypeError):
Binary(1)
def test_not_equal(self):
assert Binary(b'\x01') != b'\x02'
def test_str(self):
assert Binary(b'\x01').__str__() == b'\x01'
def test_bytes(self):
self.assertEqual(bytes(Binary(b'\x01')), b'\x01')
def test_repr(self):
assert 'Binary' in repr(Binary(b'1'))
class TestSerializer(unittest.TestCase):
def setUp(self):
self.serializer = TypeSerializer()
def test_serialize_unsupported_type(self):
with pytest.raises(TypeError, match=r'Unsupported type'):
self.serializer.serialize(object())
def test_serialize_null(self):
assert self.serializer.serialize(None) == {'NULL': True}
def test_serialize_boolean(self):
assert self.serializer.serialize(False) == {'BOOL': False}
def test_serialize_integer(self):
assert self.serializer.serialize(1) == {'N': '1'}
def test_serialize_decimal(self):
assert self.serializer.serialize(Decimal('1.25')) == {'N': '1.25'}
def test_serialize_float_error(self):
error_msg = r'Float types are not supported. Use Decimal types instead'
with pytest.raises(TypeError, match=error_msg):
self.serializer.serialize(1.25)
def test_serialize_NaN_error(self):
with pytest.raises(TypeError, match=r'Infinity and NaN not supported'):
self.serializer.serialize(Decimal('NaN'))
def test_serialize_string(self):
assert self.serializer.serialize('foo') == {'S': 'foo'}
def test_serialize_binary(self):
assert self.serializer.serialize(Binary(b'\x01')) == {'B': b'\x01'}
def test_serialize_bytearray(self):
assert self.serializer.serialize(bytearray([1])) == {'B': b'\x01'}
def test_serialize_bytes(self):
assert self.serializer.serialize(b'\x01') == {'B': b'\x01'}
def test_serialize_number_set(self):
serialized_value = self.serializer.serialize({1, 2, 3})
assert len(serialized_value) == 1
assert 'NS' in serialized_value
self.assertCountEqual(serialized_value['NS'], ['1', '2', '3'])
def test_serialize_string_set(self):
serialized_value = self.serializer.serialize({'foo', 'bar'})
assert len(serialized_value) == 1
assert 'SS' in serialized_value
self.assertCountEqual(serialized_value['SS'], ['foo', 'bar'])
def test_serialize_binary_set(self):
serialized_value = self.serializer.serialize(
{Binary(b'\x01'), Binary(b'\x02')}
)
assert len(serialized_value) == 1
assert 'BS' in serialized_value
self.assertCountEqual(serialized_value['BS'], [b'\x01', b'\x02'])
def test_serialize_list(self):
serialized_value = self.serializer.serialize(['foo', 1, [1]])
assert len(serialized_value) == 1
assert 'L' in serialized_value
self.assertCountEqual(
serialized_value['L'],
[{'S': 'foo'}, {'N': '1'}, {'L': [{'N': '1'}]}],
)
def test_serialize_tuple(self):
serialized_value = self.serializer.serialize(('foo', 1, (1,)))
self.assertEqual(len(serialized_value), 1)
self.assertIn('L', serialized_value)
self.assertCountEqual(
serialized_value['L'],
[{'S': 'foo'}, {'N': '1'}, {'L': [{'N': '1'}]}],
)
def test_serialize_map(self):
serialized_value = self.serializer.serialize(
{'foo': 'bar', 'baz': {'biz': 1}}
)
assert serialized_value == {
'M': {'foo': {'S': 'bar'}, 'baz': {'M': {'biz': {'N': '1'}}}}
}
class TestDeserializer(unittest.TestCase):
def setUp(self):
self.deserializer = TypeDeserializer()
def test_deserialize_invalid_type(self):
with pytest.raises(TypeError, match=r'FOO is not supported'):
self.deserializer.deserialize({'FOO': 'bar'})
def test_deserialize_empty_structure(self):
with pytest.raises(TypeError, match=r'Value must be a nonempty'):
self.assertEqual(self.deserializer.deserialize({}), {})
def test_deserialize_null(self):
assert self.deserializer.deserialize({"NULL": True}) is None
def test_deserialize_boolean(self):
assert self.deserializer.deserialize({"BOOL": False}) is False
def test_deserialize_integer(self):
assert self.deserializer.deserialize({'N': '1'}) == Decimal('1')
def test_deserialize_decimal(self):
assert self.deserializer.deserialize({'N': '1.25'}) == Decimal('1.25')
def test_deserialize_string(self):
assert self.deserializer.deserialize({'S': 'foo'}) == 'foo'
def test_deserialize_binary(self):
assert self.deserializer.deserialize({'B': b'\x00'}) == Binary(b'\x00')
def test_deserialize_number_set(self):
assert self.deserializer.deserialize({'NS': ['1', '1.25']}) == {
Decimal('1'),
Decimal('1.25'),
}
def test_deserialize_string_set(self):
assert self.deserializer.deserialize({'SS': ['foo', 'bar']}) == {
'foo',
'bar',
}
def test_deserialize_binary_set(self):
assert self.deserializer.deserialize({'BS': [b'\x00', b'\x01']}) == {
Binary(b'\x00'),
Binary(b'\x01'),
}
def test_deserialize_list(self):
assert self.deserializer.deserialize(
{'L': [{'N': '1'}, {'S': 'foo'}, {'L': [{'N': '1.25'}]}]}
) == [Decimal('1'), 'foo', [Decimal('1.25')]]
def test_deserialize_map(self):
assert self.deserializer.deserialize(
{
'M': {
'foo': {'S': 'mystring'},
'bar': {'M': {'baz': {'N': '1'}}},
}
}
) == {'foo': 'mystring', 'bar': {'baz': Decimal('1')}}
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