test_jsons.TestJsons.test_load_object() - Code Metrics - Inspection of "changed md to rst." - ramonhagenaars/jsons - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Branch — master (272386)

by Ramon

created 2018-08-20 06:00 UTC

test_jsons.TestJsons.test_load_object() A

↳ Parent: Project

Complexity

Conditions

Size

Total Lines	14
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	12
dl	0
loc	14
rs	9.8
c	0
b	0
f	0
cc	1
nop	1

from enum import Enum
from typing import List, Tuple, Set
from unittest.case import TestCase
import datetime
import jsons
import json
from jsons import JsonSerializable, KEY_TRANSFORMER_CAMELCASE
from jsons._common_impl import snakecase, camelcase, pascalcase, lispcase
from jsons.deserializers import KEY_TRANSFORMER_SNAKECASE


class TestJsons(TestCase):

    def test_dump_str(self):
        self.assertEqual('some string', jsons.dump('some string'))

    def test_dump_int(self):
        self.assertEqual(123, jsons.dump(123))

    def test_dump_float(self):
        self.assertEqual(123.456, jsons.dump(123.456))

    def test_dump_bool(self):
        self.assertEqual(True, jsons.dump(True))

    def test_dump_dict(self):
        d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                              tzinfo=datetime.timezone.utc)
        dict_ = {'a': {'b': {'c': {'d': d}}}}
        expectation = {'a': {'b': {'c': {'d': '2018-07-08T21:34:00Z'}}}}
        self.assertEqual(expectation, jsons.dump(dict_))

    def test_dump_none(self):
        self.assertEqual(None, jsons.dump(None))

    def test_dump_naive_datetime(self):
        d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34)
        self.assertTrue(jsons.dump(d).startswith('2018-07-08T21:34:00'))
        self.assertTrue(not jsons.dump(d).endswith('Z'))

    def test_dump_datetime_with_stripped_microseconds(self):
        d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                              second=10, microsecond=123456,
                              tzinfo=datetime.timezone.utc)
        dumped = jsons.dump(d)
        self.assertEqual('2018-07-08T21:34:10Z', dumped)

    def test_dump_datetime_with_microseconds(self):
        d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                              microsecond=123456, tzinfo=datetime.timezone.utc)
        dumped = jsons.dump(d, strip_microseconds=False)
        self.assertEqual('2018-07-08T21:34:00.123456Z', dumped)

    def test_dump_enum(self):
        class E(Enum):
            x = 1
            y = 2
        self.assertEqual('x', jsons.dump(E.x))
        self.assertEqual(2, jsons.dump(E.y, use_enum_name=False))

    def test_dump_list(self):
        d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                              tzinfo=datetime.timezone.utc)
        l = [1, 2, 3, [4, 5, [d]]]
        self.assertEqual([1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]],
                         jsons.dump(l))

    def test_dump_tuple(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        tup = (1, 2, 3, [4, 5, (dat,)])
        self.assertEqual([1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]],
                         jsons.dump(tup))

    def test_dump_set(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        set_ = {dat, dat}
        dumped = jsons.dump(set_)
        expected = ['2018-07-08T21:34:00Z']
        self.assertEqual(dumped, expected)

    def test_dump_object(self):
        class A:
            def __init__(self):
                self.name = 'A'

        class B:
            def __init__(self, a):
                self.a = a
                self.name = 'B'

        b = B(A())
        self.assertEqual({'name': 'B', 'a': {'name': 'A'}}, jsons.dump(b))

    def test_dump_object_properties(self):
        class A:
            @property
            def x(self):
                return 123

            def y(self):
                return 456  # Not to be serialized.

        a = A()
        self.assertEqual({'x': 123}, jsons.dump(a))
        self.assertEqual({}, jsons.dump(a, strip_properties=True))

    def test_dump_object_strip_nulls(self):
        class A:
            def __init__(self):
                self.name = None  # This will be stripped.

        class B:
            def __init__(self, a):
                self.a = a
                self.name = 'B'

        b = B(A())
        dumped = jsons.dump(b, strip_nulls=True)
        self.assertEqual({'name': 'B', 'a': {}}, dumped)

    def test_dump_object_strip_privates(self):
        class A:
            def __init__(self):
                self._name = 'A'  # This will be stripped.

        class B:
            def __init__(self, a):
                self.a = a
                self._name = 'B'  # This will be stripped.

        b = B(A())
        dumped = jsons.dump(b, strip_privates=True)
        self.assertEqual({'a': {}}, dumped)

    def test_dump_as_parent_type(self):
        class Parent:
            __slots__ = ['parent_name']

            def __init__(self, pname):
                self.parent_name = pname

        class Child(Parent):
            def __init__(self, cname, pname):
                Parent.__init__(self, pname)
                self.child_name = cname

        c = Child('John', 'William')
        dumped1 = jsons.dump(c)
        dumped2 = jsons.dump(c, Parent)
        self.assertEqual(dumped1, {'child_name': 'John',
                                   'parent_name': 'William'})
        self.assertEqual(dumped2, {'parent_name': 'William'})

    def test_load_str(self):
        self.assertEqual('some string', jsons.load('some string'))

    def test_load_int(self):
        self.assertEqual(123, jsons.load(123))

    def test_load_float(self):
        self.assertEqual(123.456, jsons.load(123.456))

    def test_load_bool(self):
        self.assertEqual(True, jsons.load(True))

    def test_load_dict(self):
        dumped = {'a': {'b': {'c': {'d': '2018-07-08T21:34:00Z'}}}}
        loaded = jsons.load(dumped)
        self.assertEqual(loaded['a']['b']['c']['d'].year, 2018)
        self.assertEqual(loaded['a']['b']['c']['d'].month, 7)
        self.assertEqual(loaded['a']['b']['c']['d'].day, 8)
        self.assertEqual(loaded['a']['b']['c']['d'].hour, 21)
        self.assertEqual(loaded['a']['b']['c']['d'].minute, 34)
        self.assertEqual(loaded['a']['b']['c']['d'].second, 0)

    def test_load_partially_deserialized_dict(self):
        class C:
            def __init__(self, d: datetime.datetime):
                self.d = d

        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        dumped = {'d': dat}
        loaded = jsons.load(dumped, C)

        self.assertEqual(loaded.d, dat)

    def test_load_partially_deserialized_dict_in_strict_mode(self):
        class C:
            def __init__(self, d: datetime.datetime):
                self.d = d

        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        dumped = {'d': dat}
        with self.assertRaises(KeyError):
            jsons.load(dumped, C, strict=True)

    def test_load_none(self):
        self.assertEqual(None, jsons.load(None))

    def test_load_datetime(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        self.assertEqual(dat, jsons.load('2018-07-08T21:34:00Z'))

    def test_load_enum(self):
        class E(Enum):
            x = 1
            y = 2

        self.assertEqual(E.x, jsons.load('x', E))
        self.assertEqual(E.y, jsons.load(2, E, use_enum_name=False))

    def test_load_list(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        list_ = [1, 2, 3, [4, 5, [dat]]]
        expectation = [1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]]
        self.assertEqual(list_, jsons.load(expectation))

    def test_load_tuple(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        tup = (1, ([dat],))
        expectation = (1, (['2018-07-08T21:34:00Z'],))
        cls = Tuple[int, Tuple[List[datetime.datetime]]]
        self.assertEqual(tup, jsons.load(expectation, cls))

    def test_load_set(self):
        dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
                                tzinfo=datetime.timezone.utc)
        loaded1 = jsons.load(['2018-07-08T21:34:00Z'], set)
        loaded2 = jsons.load(['2018-07-08T21:34:00Z'], Set[str])
        self.assertEqual(loaded1, {dat})
        self.assertEqual(loaded2, {'2018-07-08T21:34:00Z'})

    def test_load_object(self):
        class A:
            def __init__(self):
                self.name = 'A'

        class B:
            def __init__(self, a: A):
                self.a = a
                self.name = 'B'

        b = B(A())
        loaded_b = jsons.load({'name': 'B', 'a': {'name': 'A'}}, B)
        self.assertEqual(b.name, loaded_b.name)
        self.assertEqual(b.a.name, loaded_b.a.name)

    def test_load_object_with_default_value(self):
        class A:
            def __init__(self, x, y = 2):
                self.x = x
                self.y = y

        a = A(1)
        loaded_a = jsons.load({'x': 1}, A)
        self.assertEqual(a.x, loaded_a.x)
        self.assertEqual(a.y, loaded_a.y)

    def test_dump_load_object_deep(self):
        class A:
            def __init__(self):
                self.name = 'A'

        class B:
            def __init__(self, list_a: List[A],
                         list_dates: List[datetime.datetime]):
                self.list_a = list_a
                self.list_dates = list_dates
                self.name = 'B'

        class C:
            def __init__(self, list_b: List[B]):
                self.list_b = list_b

        c = C([B([A(), A()], []),
               B([], [datetime.datetime.now(), datetime.datetime.now()])])
        dumped_c = jsons.dump(c)
        loaded_c = jsons.load(dumped_c, C)
        self.assertEqual(loaded_c.list_b[0].name, 'B')
        self.assertEqual(loaded_c.list_b[0].list_a[0].name, 'A')
        self.assertEqual(loaded_c.list_b[0].list_a[1].name, 'A')
        self.assertEqual(loaded_c.list_b[1].list_dates[0].year,
                         c.list_b[1].list_dates[0].year)
        self.assertEqual(loaded_c.list_b[1].list_dates[0].month,
                         c.list_b[1].list_dates[0].month)
        self.assertEqual(loaded_c.list_b[1].list_dates[0].day,
                         c.list_b[1].list_dates[0].day)
        self.assertEqual(loaded_c.list_b[1].list_dates[0].hour,
                         c.list_b[1].list_dates[0].hour)
        self.assertEqual(loaded_c.list_b[1].list_dates[0].minute,
                         c.list_b[1].list_dates[0].minute)
        self.assertEqual(loaded_c.list_b[1].list_dates[0].second,
                         c.list_b[1].list_dates[0].second)

    def test_load_object_properties(self):
        class WithoutSetter:
            @property
            def x(self):
                return 123

        class WithSetter:
            def __init__(self):
                self.__x = 123
            @property
            def x(self):
                return self.__x

            @x.setter
            def x(self, x):
                self.__x = x

        loaded1 = jsons.load({'x': 123}, WithoutSetter)
        self.assertEqual(loaded1.x, 123)

        loaded2 = jsons.load({'x': 456}, WithSetter)
        self.assertEqual(loaded2.x, 456)

    def test_dumps(self):
        class A:
            def __init__(self):
                self.name = 'A'

        class B:
            def __init__(self, a: A):
                self.a = a
                self.name = 'B'

        sdumped = jsons.dumps(B(A()))
        s = json.dumps({'a': {'name': 'A'}, 'name': 'B'})
        self.assertEqual(s, sdumped)

    def test_loads(self):
        class A:
            def __init__(self):
                self.name = 'A'

        class B:
            def __init__(self, a: A):
                self.a = a
                self.name = 'B'

        s = json.dumps({'a': {'name': 'A'}, 'name': 'B'})
        loaded_dict = jsons.loads(s)
        self.assertEqual('B', loaded_dict['name'])
        self.assertEqual('A', loaded_dict['a']['name'])

        loaded_obj = jsons.loads(s, B)
        self.assertEqual('B', loaded_obj.name)
        self.assertEqual('A', loaded_obj.a.name)

    def test_jsonserializable(self):
        class Person(JsonSerializable):
            def __init__(self, name, age):
                self.name = name
                self.age = age

        person = Person('John', 65)
        person_json = person.json
        person_loaded = Person.from_json(person_json)

        self.assertEqual(person_json, {'name': 'John', 'age': 65})
        self.assertEqual(person.dump(), {'name': 'John', 'age': 65})
        self.assertEqual(person_loaded.name, 'John')
        self.assertEqual(person_loaded.age, 65)
        self.assertEqual(Person.load(person_json).name, 'John')
        self.assertEqual(Person.load(person_json).age, 65)

    def test_jsonserializable_with_kwargs(self):
        forked = JsonSerializable\
            .with_dump(fork=True, key_transformer=KEY_TRANSFORMER_CAMELCASE)
        forked.with_load(key_transformer=KEY_TRANSFORMER_SNAKECASE)

        class Person(forked):
            def __init__(self, my_name):
                self.my_name = my_name

        person = Person('John')
        person_json = person.json  # should have camelCase
        person_loaded = Person.from_json(person_json)  # should have snake_case

        self.assertEqual(person_json, {'myName': 'John'})
        self.assertEqual(person_loaded.my_name, 'John')
        self.assertTrue(isinstance(person_loaded, Person))

    def test_jsonserializable_fork(self):
        f1 = JsonSerializable.fork()
        f2 = JsonSerializable.fork()

        self.assertNotEqual(f1, f2)
        self.assertNotEqual(f1.__name__, f2.__name__)

        f1.set_serializer(lambda *_, **__: 'f1', str)
        f2.set_serializer(lambda *_, **__: 'f2', str)

        class C1(f1):
            def __init__(self):
                self.x = 'some string'

        class C2(f2):
            def __init__(self):
                self.x = 'some string'

        c1 = C1()
        c2 = C2()

        self.assertEqual(c1.json, {'x': 'f1'})
        self.assertEqual(c2.json, {'x': 'f2'})
        self.assertEqual(jsons.dump(c1.x), 'some string')
        self.assertEqual(jsons.dump(c1.x, fork_inst=f1), 'f1')
        self.assertEqual(jsons.dump(c1.x, fork_inst=f2), 'f2')  # Note: c1.x!

    def test_jsonserializable_fork_of_forks(self):
        f1 = JsonSerializable.fork()
        f1.set_serializer(lambda *_, **__: 'f1', str)

        f2 = f1.fork()
        f2.set_serializer(lambda *_, **__: 'f2', str)
        f2.set_serializer(lambda *_, **__: 999, int)

        f3 = f2.fork('custom_fork_name')
        f3.set_serializer(lambda *_, **__: 'f3', str)

        self.assertEqual(jsons.dump('some string', fork_inst=f1), 'f1')
        self.assertEqual(jsons.dump(123, fork_inst=f1), 123)

        self.assertEqual(jsons.dump('some string', fork_inst=f2), 'f2')
        self.assertEqual(jsons.dump(123, fork_inst=f2), 999)

        self.assertEqual(jsons.dump('some string', fork_inst=f3), 'f3')
        self.assertEqual(jsons.dump(123, fork_inst=f3), 999)
        self.assertEqual(f3.__name__, 'custom_fork_name')

    def test_case_transformers(self):
        camelcase_str = 'camelCase'
        snakecase_str = 'snake_case'
        pascalcase_str = 'Pascal_case'
        pascalcase_str2 = 'ABcDe'
        lispcase_str = 'lisp-case'

        self.assertEqual(camelcase(camelcase_str), 'camelCase')
        self.assertEqual(camelcase(snakecase_str), 'snakeCase')
        self.assertEqual(camelcase(pascalcase_str), 'pascalCase')
        self.assertEqual(camelcase(pascalcase_str2), 'aBcDe')
        self.assertEqual(camelcase(lispcase_str), 'lispCase')

        self.assertEqual(snakecase(camelcase_str), 'camel_case')
        self.assertEqual(snakecase(snakecase_str), 'snake_case')
        self.assertEqual(snakecase(pascalcase_str), 'pascal_case')
        self.assertEqual(snakecase(pascalcase_str2), 'a_bc_de')
        self.assertEqual(snakecase(lispcase_str), 'lisp_case')

        self.assertEqual(pascalcase(camelcase_str), 'CamelCase')
        self.assertEqual(pascalcase(snakecase_str), 'SnakeCase')
        self.assertEqual(pascalcase(pascalcase_str), 'PascalCase')
        self.assertEqual(pascalcase(pascalcase_str2), 'ABcDe')
        self.assertEqual(pascalcase(lispcase_str), 'LispCase')

        self.assertEqual(lispcase(camelcase_str), 'camel-case')
        self.assertEqual(lispcase(snakecase_str), 'snake-case')
        self.assertEqual(lispcase(pascalcase_str), 'pascal-case')
        self.assertEqual(lispcase(pascalcase_str2), 'a-bc-de')
        self.assertEqual(lispcase(lispcase_str), 'lisp-case')

    def test_serialize_and_deserialize_with_case_transformer(self):
        class A:
            def __init__(self, snake_case_str, some_dict):
                self.snake_case_str = snake_case_str
                self.some_dict = some_dict

        class B:
            def __init__(self, a_obj: A, camel_case_str):
                self.a_obj = a_obj
                self.camel_case_str = camel_case_str

        b = B(A('one_two', {'some_key': 'some_value'}), 'theeFour')
        dumped_pascalcase = \
            jsons.dump(b, key_transformer=jsons.KEY_TRANSFORMER_PASCALCASE)
        loaded_snakecase = \
            jsons.load(dumped_pascalcase, B,
                       key_transformer=jsons.KEY_TRANSFORMER_SNAKECASE)
        expected_dump = {
            'AObj': {
                'SnakeCaseStr': 'one_two',
                'SomeDict': {
                    'SomeKey': 'some_value'
                }
            },
            'CamelCaseStr': 'theeFour'
        }
        self.assertEqual(expected_dump, dumped_pascalcase)
        self.assertEqual(loaded_snakecase.camel_case_str, 'theeFour')
        self.assertEqual(loaded_snakecase.a_obj.snake_case_str, 'one_two')
        self.assertEqual(loaded_snakecase.a_obj.some_dict['some_key'],
                         'some_value')

    def test_set_custom_functions(self):
        jsons.set_serializer(lambda *_, **__: 'custom_serializer', str)
        jsons.set_deserializer(lambda *_, **__: 'custom_deserializer', str)

        dumped = jsons.dump('serialize me')
        loaded = jsons.load(dumped)

        self.assertEqual(dumped, 'custom_serializer')
        self.assertEqual(loaded, 'custom_deserializer')


1			from enum import Enum
2			from typing import List, Tuple, Set
3			from unittest.case import TestCase
4			import datetime
5			import jsons
6			import json
7			from jsons import JsonSerializable, KEY_TRANSFORMER_CAMELCASE
8			from jsons._common_impl import snakecase, camelcase, pascalcase, lispcase
9			from jsons.deserializers import KEY_TRANSFORMER_SNAKECASE
10
11
12			class TestJsons(TestCase):
13
14			def test_dump_str(self):
15			self.assertEqual('some string', jsons.dump('some string'))
16
17			def test_dump_int(self):
18			self.assertEqual(123, jsons.dump(123))
19
20			def test_dump_float(self):
21			self.assertEqual(123.456, jsons.dump(123.456))
22
23			def test_dump_bool(self):
24			self.assertEqual(True, jsons.dump(True))
25
26			def test_dump_dict(self):
27			d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
28			tzinfo=datetime.timezone.utc)
29			dict_ = {'a': {'b': {'c': {'d': d}}}}
30			expectation = {'a': {'b': {'c': {'d': '2018-07-08T21:34:00Z'}}}}
31			self.assertEqual(expectation, jsons.dump(dict_))
32
33			def test_dump_none(self):
34			self.assertEqual(None, jsons.dump(None))
35
36			def test_dump_naive_datetime(self):
37			d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34)
38			self.assertTrue(jsons.dump(d).startswith('2018-07-08T21:34:00'))
39			self.assertTrue(not jsons.dump(d).endswith('Z'))
40
41			def test_dump_datetime_with_stripped_microseconds(self):
42			d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
43			second=10, microsecond=123456,
44			tzinfo=datetime.timezone.utc)
45			dumped = jsons.dump(d)
46			self.assertEqual('2018-07-08T21:34:10Z', dumped)
47
48			def test_dump_datetime_with_microseconds(self):
49			d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
50			microsecond=123456, tzinfo=datetime.timezone.utc)
51			dumped = jsons.dump(d, strip_microseconds=False)
52			self.assertEqual('2018-07-08T21:34:00.123456Z', dumped)
53
54			def test_dump_enum(self):
55			class E(Enum):
56			x = 1
57			y = 2
58			self.assertEqual('x', jsons.dump(E.x))
59			self.assertEqual(2, jsons.dump(E.y, use_enum_name=False))
60
61			def test_dump_list(self):
62			d = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
63			tzinfo=datetime.timezone.utc)
64			l = [1, 2, 3, [4, 5, [d]]]
65			self.assertEqual([1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]],
66			jsons.dump(l))
67
68			def test_dump_tuple(self):
69			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
70			tzinfo=datetime.timezone.utc)
71			tup = (1, 2, 3, [4, 5, (dat,)])
72			self.assertEqual([1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]],
73			jsons.dump(tup))
74
75			def test_dump_set(self):
76			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
77			tzinfo=datetime.timezone.utc)
78			set_ = {dat, dat}
79			dumped = jsons.dump(set_)
80			expected = ['2018-07-08T21:34:00Z']
81			self.assertEqual(dumped, expected)
82
83			def test_dump_object(self):
84			class A:
85			def __init__(self):
86			self.name = 'A'
87
88			class B:
89			def __init__(self, a):
90			self.a = a
91			self.name = 'B'
92
93			b = B(A())
94			self.assertEqual({'name': 'B', 'a': {'name': 'A'}}, jsons.dump(b))
95
96			def test_dump_object_properties(self):
97			class A:
98			@property
99			def x(self):
100			return 123
101
102			def y(self):
103			return 456 # Not to be serialized.
104
105			a = A()
106			self.assertEqual({'x': 123}, jsons.dump(a))
107			self.assertEqual({}, jsons.dump(a, strip_properties=True))
108
109			def test_dump_object_strip_nulls(self):
110			class A:
111			def __init__(self):
112			self.name = None # This will be stripped.
113
114			class B:
115			def __init__(self, a):
116			self.a = a
117			self.name = 'B'
118
119			b = B(A())
120			dumped = jsons.dump(b, strip_nulls=True)
121			self.assertEqual({'name': 'B', 'a': {}}, dumped)
122
123			def test_dump_object_strip_privates(self):
124			class A:
125			def __init__(self):
126			self._name = 'A' # This will be stripped.
127
128			class B:
129			def __init__(self, a):
130			self.a = a
131			self._name = 'B' # This will be stripped.
132
133			b = B(A())
134			dumped = jsons.dump(b, strip_privates=True)
135			self.assertEqual({'a': {}}, dumped)
136
137			def test_dump_as_parent_type(self):
138			class Parent:
139			__slots__ = ['parent_name']
140
141			def __init__(self, pname):
142			self.parent_name = pname
143
144			class Child(Parent):
145			def __init__(self, cname, pname):
146			Parent.__init__(self, pname)
147			self.child_name = cname
148
149			c = Child('John', 'William')
150			dumped1 = jsons.dump(c)
151			dumped2 = jsons.dump(c, Parent)
152			self.assertEqual(dumped1, {'child_name': 'John',
153			'parent_name': 'William'})
154			self.assertEqual(dumped2, {'parent_name': 'William'})
155
156			def test_load_str(self):
157			self.assertEqual('some string', jsons.load('some string'))
158
159			def test_load_int(self):
160			self.assertEqual(123, jsons.load(123))
161
162			def test_load_float(self):
163			self.assertEqual(123.456, jsons.load(123.456))
164
165			def test_load_bool(self):
166			self.assertEqual(True, jsons.load(True))
167
168			def test_load_dict(self):
169			dumped = {'a': {'b': {'c': {'d': '2018-07-08T21:34:00Z'}}}}
170			loaded = jsons.load(dumped)
171			self.assertEqual(loaded['a']['b']['c']['d'].year, 2018)
172			self.assertEqual(loaded['a']['b']['c']['d'].month, 7)
173			self.assertEqual(loaded['a']['b']['c']['d'].day, 8)
174			self.assertEqual(loaded['a']['b']['c']['d'].hour, 21)
175			self.assertEqual(loaded['a']['b']['c']['d'].minute, 34)
176			self.assertEqual(loaded['a']['b']['c']['d'].second, 0)
177
178			def test_load_partially_deserialized_dict(self):
179			class C:
180			def __init__(self, d: datetime.datetime):
181			self.d = d
182
183			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
184			tzinfo=datetime.timezone.utc)
185			dumped = {'d': dat}
186			loaded = jsons.load(dumped, C)
187
188			self.assertEqual(loaded.d, dat)
189
190			def test_load_partially_deserialized_dict_in_strict_mode(self):
191			class C:
192			def __init__(self, d: datetime.datetime):
193			self.d = d
194
195			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
196			tzinfo=datetime.timezone.utc)
197			dumped = {'d': dat}
198			with self.assertRaises(KeyError):
199			jsons.load(dumped, C, strict=True)
200
201			def test_load_none(self):
202			self.assertEqual(None, jsons.load(None))
203
204			def test_load_datetime(self):
205			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
206			tzinfo=datetime.timezone.utc)
207			self.assertEqual(dat, jsons.load('2018-07-08T21:34:00Z'))
208
209			def test_load_enum(self):
210			class E(Enum):
211			x = 1
212			y = 2
213
214			self.assertEqual(E.x, jsons.load('x', E))
215			self.assertEqual(E.y, jsons.load(2, E, use_enum_name=False))
216
217			def test_load_list(self):
218			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
219			tzinfo=datetime.timezone.utc)
220			list_ = [1, 2, 3, [4, 5, [dat]]]
221			expectation = [1, 2, 3, [4, 5, ['2018-07-08T21:34:00Z']]]
222			self.assertEqual(list_, jsons.load(expectation))
223
224			def test_load_tuple(self):
225			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
226			tzinfo=datetime.timezone.utc)
227			tup = (1, ([dat],))
228			expectation = (1, (['2018-07-08T21:34:00Z'],))
229			cls = Tuple[int, Tuple[List[datetime.datetime]]]
230			self.assertEqual(tup, jsons.load(expectation, cls))
231
232			def test_load_set(self):
233			dat = datetime.datetime(year=2018, month=7, day=8, hour=21, minute=34,
234			tzinfo=datetime.timezone.utc)
235			loaded1 = jsons.load(['2018-07-08T21:34:00Z'], set)
236			loaded2 = jsons.load(['2018-07-08T21:34:00Z'], Set[str])
237			self.assertEqual(loaded1, {dat})
238			self.assertEqual(loaded2, {'2018-07-08T21:34:00Z'})
239
240			def test_load_object(self):
241			class A:
242			def __init__(self):
243			self.name = 'A'
244
245			class B:
246			def __init__(self, a: A):
247			self.a = a
248			self.name = 'B'
249
250			b = B(A())
251			loaded_b = jsons.load({'name': 'B', 'a': {'name': 'A'}}, B)
252			self.assertEqual(b.name, loaded_b.name)
253			self.assertEqual(b.a.name, loaded_b.a.name)
254
255			def test_load_object_with_default_value(self):
256			class A:
257			def __init__(self, x, y = 2):
258			self.x = x
259			self.y = y
260
261			a = A(1)
262			loaded_a = jsons.load({'x': 1}, A)
263			self.assertEqual(a.x, loaded_a.x)
264			self.assertEqual(a.y, loaded_a.y)
265
266			def test_dump_load_object_deep(self):
267			class A:
268			def __init__(self):
269			self.name = 'A'
270
271			class B:
272			def __init__(self, list_a: List[A],
273			list_dates: List[datetime.datetime]):
274			self.list_a = list_a
275			self.list_dates = list_dates
276			self.name = 'B'
277
278			class C:
279			def __init__(self, list_b: List[B]):
280			self.list_b = list_b
281
282			c = C([B([A(), A()], []),
283			B([], [datetime.datetime.now(), datetime.datetime.now()])])
284			dumped_c = jsons.dump(c)
285			loaded_c = jsons.load(dumped_c, C)
286			self.assertEqual(loaded_c.list_b[0].name, 'B')
287			self.assertEqual(loaded_c.list_b[0].list_a[0].name, 'A')
288			self.assertEqual(loaded_c.list_b[0].list_a[1].name, 'A')
289			self.assertEqual(loaded_c.list_b[1].list_dates[0].year,
290			c.list_b[1].list_dates[0].year)
291			self.assertEqual(loaded_c.list_b[1].list_dates[0].month,
292			c.list_b[1].list_dates[0].month)
293			self.assertEqual(loaded_c.list_b[1].list_dates[0].day,
294			c.list_b[1].list_dates[0].day)
295			self.assertEqual(loaded_c.list_b[1].list_dates[0].hour,
296			c.list_b[1].list_dates[0].hour)
297			self.assertEqual(loaded_c.list_b[1].list_dates[0].minute,
298			c.list_b[1].list_dates[0].minute)
299			self.assertEqual(loaded_c.list_b[1].list_dates[0].second,
300			c.list_b[1].list_dates[0].second)
301
302			def test_load_object_properties(self):
303			class WithoutSetter:
304			@property
305			def x(self):
306			return 123
307
308			class WithSetter:
309			def __init__(self):
310			self.__x = 123
311			@property
312			def x(self):
313			return self.__x
314
315			@x.setter
316			def x(self, x):
317			self.__x = x
318
319			loaded1 = jsons.load({'x': 123}, WithoutSetter)
320			self.assertEqual(loaded1.x, 123)
321
322			loaded2 = jsons.load({'x': 456}, WithSetter)
323			self.assertEqual(loaded2.x, 456)
324
325			def test_dumps(self):
326			class A:
327			def __init__(self):
328			self.name = 'A'
329
330			class B:
331			def __init__(self, a: A):
332			self.a = a
333			self.name = 'B'
334
335			sdumped = jsons.dumps(B(A()))
336			s = json.dumps({'a': {'name': 'A'}, 'name': 'B'})
337			self.assertEqual(s, sdumped)
338
339			def test_loads(self):
340			class A:
341			def __init__(self):
342			self.name = 'A'
343
344			class B:
345			def __init__(self, a: A):
346			self.a = a
347			self.name = 'B'
348
349			s = json.dumps({'a': {'name': 'A'}, 'name': 'B'})
350			loaded_dict = jsons.loads(s)
351			self.assertEqual('B', loaded_dict['name'])
352			self.assertEqual('A', loaded_dict['a']['name'])
353
354			loaded_obj = jsons.loads(s, B)
355			self.assertEqual('B', loaded_obj.name)
356			self.assertEqual('A', loaded_obj.a.name)
357
358			def test_jsonserializable(self):
359			class Person(JsonSerializable):
360			def __init__(self, name, age):
361			self.name = name
362			self.age = age
363
364			person = Person('John', 65)
365			person_json = person.json
366			person_loaded = Person.from_json(person_json)
367
368			self.assertEqual(person_json, {'name': 'John', 'age': 65})
369			self.assertEqual(person.dump(), {'name': 'John', 'age': 65})
370			self.assertEqual(person_loaded.name, 'John')
371			self.assertEqual(person_loaded.age, 65)
372			self.assertEqual(Person.load(person_json).name, 'John')
373			self.assertEqual(Person.load(person_json).age, 65)
374
375			def test_jsonserializable_with_kwargs(self):
376			forked = JsonSerializable\
377			.with_dump(fork=True, key_transformer=KEY_TRANSFORMER_CAMELCASE)
378			forked.with_load(key_transformer=KEY_TRANSFORMER_SNAKECASE)
379
380			class Person(forked):
381			def __init__(self, my_name):
382			self.my_name = my_name
383
384			person = Person('John')
385			person_json = person.json # should have camelCase
386			person_loaded = Person.from_json(person_json) # should have snake_case
387
388			self.assertEqual(person_json, {'myName': 'John'})
389			self.assertEqual(person_loaded.my_name, 'John')
390			self.assertTrue(isinstance(person_loaded, Person))
391
392			def test_jsonserializable_fork(self):
393			f1 = JsonSerializable.fork()
394			f2 = JsonSerializable.fork()
395
396			self.assertNotEqual(f1, f2)
397			self.assertNotEqual(f1.__name__, f2.__name__)
398
399			f1.set_serializer(lambda _, *__: 'f1', str)
400			f2.set_serializer(lambda _, *__: 'f2', str)
401
402			class C1(f1):
403			def __init__(self):
404			self.x = 'some string'
405
406			class C2(f2):
407			def __init__(self):
408			self.x = 'some string'
409
410			c1 = C1()
411			c2 = C2()
412
413			self.assertEqual(c1.json, {'x': 'f1'})
414			self.assertEqual(c2.json, {'x': 'f2'})
415			self.assertEqual(jsons.dump(c1.x), 'some string')
416			self.assertEqual(jsons.dump(c1.x, fork_inst=f1), 'f1')
417			self.assertEqual(jsons.dump(c1.x, fork_inst=f2), 'f2') # Note: c1.x!
418
419			def test_jsonserializable_fork_of_forks(self):
420			f1 = JsonSerializable.fork()
421			f1.set_serializer(lambda _, *__: 'f1', str)
422
423			f2 = f1.fork()
424			f2.set_serializer(lambda _, *__: 'f2', str)
425			f2.set_serializer(lambda _, *__: 999, int)
426
427			f3 = f2.fork('custom_fork_name')
428			f3.set_serializer(lambda _, *__: 'f3', str)
429
430			self.assertEqual(jsons.dump('some string', fork_inst=f1), 'f1')
431			self.assertEqual(jsons.dump(123, fork_inst=f1), 123)
432
433			self.assertEqual(jsons.dump('some string', fork_inst=f2), 'f2')
434			self.assertEqual(jsons.dump(123, fork_inst=f2), 999)
435
436			self.assertEqual(jsons.dump('some string', fork_inst=f3), 'f3')
437			self.assertEqual(jsons.dump(123, fork_inst=f3), 999)
438			self.assertEqual(f3.__name__, 'custom_fork_name')
439
440			def test_case_transformers(self):
441			camelcase_str = 'camelCase'
442			snakecase_str = 'snake_case'
443			pascalcase_str = 'Pascal_case'
444			pascalcase_str2 = 'ABcDe'
445			lispcase_str = 'lisp-case'
446
447			self.assertEqual(camelcase(camelcase_str), 'camelCase')
448			self.assertEqual(camelcase(snakecase_str), 'snakeCase')
449			self.assertEqual(camelcase(pascalcase_str), 'pascalCase')
450			self.assertEqual(camelcase(pascalcase_str2), 'aBcDe')
451			self.assertEqual(camelcase(lispcase_str), 'lispCase')
452
453			self.assertEqual(snakecase(camelcase_str), 'camel_case')
454			self.assertEqual(snakecase(snakecase_str), 'snake_case')
455			self.assertEqual(snakecase(pascalcase_str), 'pascal_case')
456			self.assertEqual(snakecase(pascalcase_str2), 'a_bc_de')
457			self.assertEqual(snakecase(lispcase_str), 'lisp_case')
458
459			self.assertEqual(pascalcase(camelcase_str), 'CamelCase')
460			self.assertEqual(pascalcase(snakecase_str), 'SnakeCase')
461			self.assertEqual(pascalcase(pascalcase_str), 'PascalCase')
462			self.assertEqual(pascalcase(pascalcase_str2), 'ABcDe')
463			self.assertEqual(pascalcase(lispcase_str), 'LispCase')
464
465			self.assertEqual(lispcase(camelcase_str), 'camel-case')
466			self.assertEqual(lispcase(snakecase_str), 'snake-case')
467			self.assertEqual(lispcase(pascalcase_str), 'pascal-case')
468			self.assertEqual(lispcase(pascalcase_str2), 'a-bc-de')
469			self.assertEqual(lispcase(lispcase_str), 'lisp-case')
470
471			def test_serialize_and_deserialize_with_case_transformer(self):
472			class A:
473			def __init__(self, snake_case_str, some_dict):
474			self.snake_case_str = snake_case_str
475			self.some_dict = some_dict
476
477			class B:
478			def __init__(self, a_obj: A, camel_case_str):
479			self.a_obj = a_obj
480			self.camel_case_str = camel_case_str
481
482			b = B(A('one_two', {'some_key': 'some_value'}), 'theeFour')
483			dumped_pascalcase = \
484			jsons.dump(b, key_transformer=jsons.KEY_TRANSFORMER_PASCALCASE)
485			loaded_snakecase = \
486			jsons.load(dumped_pascalcase, B,
487			key_transformer=jsons.KEY_TRANSFORMER_SNAKECASE)
488			expected_dump = {
489			'AObj': {
490			'SnakeCaseStr': 'one_two',
491			'SomeDict': {
492			'SomeKey': 'some_value'
493			}
494			},
495			'CamelCaseStr': 'theeFour'
496			}
497			self.assertEqual(expected_dump, dumped_pascalcase)
498			self.assertEqual(loaded_snakecase.camel_case_str, 'theeFour')
499			self.assertEqual(loaded_snakecase.a_obj.snake_case_str, 'one_two')
500			self.assertEqual(loaded_snakecase.a_obj.some_dict['some_key'],
501			'some_value')
502
503			def test_set_custom_functions(self):
504			jsons.set_serializer(lambda _, *__: 'custom_serializer', str)
505			jsons.set_deserializer(lambda _, *__: 'custom_deserializer', str)
506
507			dumped = jsons.dump('serialize me')
508			loaded = jsons.load(dumped)
509
510			self.assertEqual(dumped, 'custom_serializer')
511			self.assertEqual(loaded, 'custom_deserializer')
512

ramonhagenaars / jsons

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test_jsons.TestJsons.test_load_object() A

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