Files
pydantic/tests/test_json.py
T
Samuel Colvin 15850a43c5 moving to black (#287)
* moving to black

* put back flake8

* remove isort option

* putting back isort

* uprev pycodestyle

* remove black from docs/examples

* tweak parse.py
2018-11-15 11:30:07 +00:00

106 lines
3.1 KiB
Python

import datetime
import json
from decimal import Decimal
from enum import Enum
from uuid import UUID
import pytest
from pydantic import BaseModel, create_model
from pydantic.json import pydantic_encoder, timedelta_isoformat
class MyEnum(Enum):
foo = 'bar'
snap = 'crackle'
@pytest.mark.parametrize(
'input,output',
[
(UUID('ebcdab58-6eb8-46fb-a190-d07a33e9eac8'), '"ebcdab58-6eb8-46fb-a190-d07a33e9eac8"'),
(datetime.datetime(2032, 1, 1, 1, 1), '"2032-01-01T01:01:00"'),
(datetime.datetime(2032, 1, 1, 1, 1, tzinfo=datetime.timezone.utc), '"2032-01-01T01:01:00+00:00"'),
(datetime.datetime(2032, 1, 1), '"2032-01-01T00:00:00"'),
(datetime.time(12, 34, 56), '"12:34:56"'),
(datetime.timedelta(days=12, seconds=34, microseconds=56), '1036834.000056'),
({1, 2, 3}, '[1, 2, 3]'),
(frozenset([1, 2, 3]), '[1, 2, 3]'),
((v for v in range(4)), '[0, 1, 2, 3]'),
(b'this is bytes', '"this is bytes"'),
(Decimal('12.34'), '12.34'),
(create_model('BarModel', a='b', c='d')(), '{"a": "b", "c": "d"}'),
(MyEnum.foo, '"bar"'),
],
)
def test_encoding(input, output):
assert output == json.dumps(input, default=pydantic_encoder)
def test_model_encoding():
class ModelA(BaseModel):
x: int
y: str
class Model(BaseModel):
a: float
b: bytes
c: Decimal
d: ModelA
m = Model(a=10.2, b='foobar', c=10.2, d={'x': 123, 'y': '123'})
assert m.dict() == {'a': 10.2, 'b': b'foobar', 'c': Decimal('10.2'), 'd': {'x': 123, 'y': '123'}}
assert m.json() == '{"a": 10.2, "b": "foobar", "c": 10.2, "d": {"x": 123, "y": "123"}}'
assert m.json(exclude={'b'}) == '{"a": 10.2, "c": 10.2, "d": {"x": 123, "y": "123"}}'
def test_invalid_model():
class Foo:
pass
with pytest.raises(TypeError):
json.dumps(Foo, default=pydantic_encoder)
@pytest.mark.parametrize(
'input,output',
[
(datetime.timedelta(days=12, seconds=34, microseconds=56), 'P12DT0H0M34.000056S'),
(datetime.timedelta(days=1001, hours=1, minutes=2, seconds=3, microseconds=654_321), 'P1001DT1H2M3.654321S'),
],
)
def test_iso_timedelta(input, output):
assert output == timedelta_isoformat(input)
def test_custom_encoder():
class Model(BaseModel):
x: datetime.timedelta
y: Decimal
z: datetime.date
class Config:
json_encoders = {datetime.timedelta: lambda v: f'{v.total_seconds():0.3f}s', Decimal: lambda v: 'a decimal'}
assert Model(x=123, y=5, z='2032-06-01').json() == '{"x": "123.000s", "y": "a decimal", "z": "2032-06-01"}'
def test_custom_iso_timedelta():
class Model(BaseModel):
x: datetime.timedelta
class Config:
json_encoders = {datetime.timedelta: timedelta_isoformat}
m = Model(x=123)
assert m.json() == '{"x": "P0DT0H2M3.000000S"}'
def test_custom_encoder_arg():
class Model(BaseModel):
x: datetime.timedelta
m = Model(x=123)
assert m.json() == '{"x": 123.0}'
assert m.json(encoder=lambda v: '__default__') == '{"x": "__default__"}'