/
test_create_model.py
244 lines (176 loc) · 7.13 KB
/
test_create_model.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
from typing import Generic, TypeVar
import pytest
from pydantic import BaseModel, Extra, Field, ValidationError, create_model, errors, validator
from pydantic.fields import ModelPrivateAttr
from pydantic.generics import GenericModel
def test_create_model():
model = create_model('FooModel', foo=(str, ...), bar=123)
assert issubclass(model, BaseModel)
assert issubclass(model.__config__, BaseModel.Config)
assert model.__name__ == 'FooModel'
assert model.__fields__.keys() == {'foo', 'bar'}
assert model.__validators__ == {}
assert model.__config__.__name__ == 'Config'
assert model.__module__ == 'pydantic.main'
def test_create_model_usage():
model = create_model('FooModel', foo=(str, ...), bar=123)
m = model(foo='hello')
assert m.foo == 'hello'
assert m.bar == 123
with pytest.raises(ValidationError):
model()
with pytest.raises(ValidationError):
model(foo='hello', bar='xxx')
def test_create_model_pickle(create_module):
"""
Pickle will work for dynamically created model only if it was defined globally with its class name
and module where it's defined was specified
"""
@create_module
def module():
import pickle
from pydantic import create_model
FooModel = create_model('FooModel', foo=(str, ...), bar=123, __module__=__name__)
m = FooModel(foo='hello')
d = pickle.dumps(m)
m2 = pickle.loads(d)
assert m2.foo == m.foo == 'hello'
assert m2.bar == m.bar == 123
assert m2 == m
assert m2 is not m
def test_invalid_name():
with pytest.warns(RuntimeWarning):
model = create_model('FooModel', _foo=(str, ...))
assert len(model.__fields__) == 0
def test_field_wrong_tuple():
with pytest.raises(errors.ConfigError):
create_model('FooModel', foo=(1, 2, 3))
def test_config_and_base():
with pytest.raises(errors.ConfigError):
create_model('FooModel', __config__=BaseModel.Config, __base__=BaseModel)
def test_inheritance():
class BarModel(BaseModel):
x = 1
y = 2
model = create_model('FooModel', foo=(str, ...), bar=(int, 123), __base__=BarModel)
assert model.__fields__.keys() == {'foo', 'bar', 'x', 'y'}
m = model(foo='a', x=4)
assert m.dict() == {'bar': 123, 'foo': 'a', 'x': 4, 'y': 2}
def test_custom_config():
class Config:
fields = {'foo': 'api-foo-field'}
model = create_model('FooModel', foo=(int, ...), __config__=Config)
assert model(**{'api-foo-field': '987'}).foo == 987
assert issubclass(model.__config__, BaseModel.Config)
with pytest.raises(ValidationError):
model(foo=654)
def test_custom_config_inherits():
class Config(BaseModel.Config):
fields = {'foo': 'api-foo-field'}
model = create_model('FooModel', foo=(int, ...), __config__=Config)
assert model(**{'api-foo-field': '987'}).foo == 987
assert issubclass(model.__config__, BaseModel.Config)
with pytest.raises(ValidationError):
model(foo=654)
def test_custom_config_extras():
class Config(BaseModel.Config):
extra = Extra.forbid
model = create_model('FooModel', foo=(int, ...), __config__=Config)
assert model(foo=654)
with pytest.raises(ValidationError):
model(bar=654)
def test_inheritance_validators():
class BarModel(BaseModel):
@validator('a', check_fields=False)
def check_a(cls, v):
if 'foobar' not in v:
raise ValueError('"foobar" not found in a')
return v
model = create_model('FooModel', a='cake', __base__=BarModel)
assert model().a == 'cake'
assert model(a='this is foobar good').a == 'this is foobar good'
with pytest.raises(ValidationError):
model(a='something else')
def test_inheritance_validators_always():
class BarModel(BaseModel):
@validator('a', check_fields=False, always=True)
def check_a(cls, v):
if 'foobar' not in v:
raise ValueError('"foobar" not found in a')
return v
model = create_model('FooModel', a='cake', __base__=BarModel)
with pytest.raises(ValidationError):
model()
assert model(a='this is foobar good').a == 'this is foobar good'
with pytest.raises(ValidationError):
model(a='something else')
def test_inheritance_validators_all():
class BarModel(BaseModel):
@validator('*')
def check_all(cls, v):
return v * 2
model = create_model('FooModel', a=(int, ...), b=(int, ...), __base__=BarModel)
assert model(a=2, b=6).dict() == {'a': 4, 'b': 12}
def test_funky_name():
model = create_model('FooModel', **{'this-is-funky': (int, ...)})
m = model(**{'this-is-funky': '123'})
assert m.dict() == {'this-is-funky': 123}
with pytest.raises(ValidationError) as exc_info:
model()
assert exc_info.value.errors() == [
{'loc': ('this-is-funky',), 'msg': 'field required', 'type': 'value_error.missing'}
]
def test_repeat_base_usage():
class Model(BaseModel):
a: str
assert Model.__fields__.keys() == {'a'}
model = create_model('FooModel', b=1, __base__=Model)
assert Model.__fields__.keys() == {'a'}
assert model.__fields__.keys() == {'a', 'b'}
model2 = create_model('Foo2Model', c=1, __base__=Model)
assert Model.__fields__.keys() == {'a'}
assert model.__fields__.keys() == {'a', 'b'}
assert model2.__fields__.keys() == {'a', 'c'}
model3 = create_model('Foo2Model', d=1, __base__=model)
assert Model.__fields__.keys() == {'a'}
assert model.__fields__.keys() == {'a', 'b'}
assert model2.__fields__.keys() == {'a', 'c'}
assert model3.__fields__.keys() == {'a', 'b', 'd'}
def test_dynamic_and_static():
class A(BaseModel):
x: int
y: float
z: str
DynamicA = create_model('A', x=(int, ...), y=(float, ...), z=(str, ...))
for field_name in ('x', 'y', 'z'):
assert A.__fields__[field_name].default == DynamicA.__fields__[field_name].default
def test_config_field_info_create_model():
class Config:
fields = {'a': {'description': 'descr'}}
m1 = create_model('M1', __config__=Config, a=(str, ...))
assert m1.schema()['properties'] == {'a': {'title': 'A', 'description': 'descr', 'type': 'string'}}
m2 = create_model('M2', __config__=Config, a=(str, Field(...)))
assert m2.schema()['properties'] == {'a': {'title': 'A', 'description': 'descr', 'type': 'string'}}
def test_generics_model():
T = TypeVar('T')
class TestGenericModel(GenericModel):
pass
AAModel = create_model(
'AAModel', __base__=(TestGenericModel, Generic[T]), __cls_kwargs__={'orm_mode': True}, aa=(int, Field(0))
)
result = AAModel[int](aa=1)
assert result.aa == 1
assert result.__config__.orm_mode is True
def test_set_name():
calls = []
class class_deco(ModelPrivateAttr):
def __init__(self, fn):
super().__init__()
self.fn = fn
def __set_name__(self, owner, name):
calls.append((owner, name))
class A(BaseModel):
@class_deco
def _some_func(self):
return self
assert calls == [(A, '_some_func')]