mirror of
https://github.com/encode/django-rest-framework.git
synced 2024-11-27 03:54:01 +03:00
298 lines
10 KiB
Python
298 lines
10 KiB
Python
# coding: utf-8
|
|
from __future__ import unicode_literals
|
|
from .utils import MockObject
|
|
from rest_framework import serializers
|
|
from rest_framework.compat import unicode_repr
|
|
import pickle
|
|
import pytest
|
|
|
|
|
|
# Tests for core functionality.
|
|
# -----------------------------
|
|
|
|
class TestSerializer:
|
|
def setup(self):
|
|
class ExampleSerializer(serializers.Serializer):
|
|
char = serializers.CharField()
|
|
integer = serializers.IntegerField()
|
|
self.Serializer = ExampleSerializer
|
|
|
|
def test_valid_serializer(self):
|
|
serializer = self.Serializer(data={'char': 'abc', 'integer': 123})
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == {'char': 'abc', 'integer': 123}
|
|
assert serializer.errors == {}
|
|
|
|
def test_invalid_serializer(self):
|
|
serializer = self.Serializer(data={'char': 'abc'})
|
|
assert not serializer.is_valid()
|
|
assert serializer.validated_data == {}
|
|
assert serializer.errors == {'integer': ['This field is required.']}
|
|
|
|
def test_partial_validation(self):
|
|
serializer = self.Serializer(data={'char': 'abc'}, partial=True)
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == {'char': 'abc'}
|
|
assert serializer.errors == {}
|
|
|
|
def test_empty_serializer(self):
|
|
serializer = self.Serializer()
|
|
assert serializer.data == {'char': '', 'integer': None}
|
|
|
|
def test_missing_attribute_during_serialization(self):
|
|
class MissingAttributes:
|
|
pass
|
|
instance = MissingAttributes()
|
|
serializer = self.Serializer(instance)
|
|
with pytest.raises(AttributeError):
|
|
serializer.data
|
|
|
|
|
|
class TestValidateMethod:
|
|
def test_non_field_error_validate_method(self):
|
|
class ExampleSerializer(serializers.Serializer):
|
|
char = serializers.CharField()
|
|
integer = serializers.IntegerField()
|
|
|
|
def validate(self, attrs):
|
|
raise serializers.ValidationError('Non field error')
|
|
|
|
serializer = ExampleSerializer(data={'char': 'abc', 'integer': 123})
|
|
assert not serializer.is_valid()
|
|
assert serializer.errors == {'non_field_errors': ['Non field error']}
|
|
|
|
def test_field_error_validate_method(self):
|
|
class ExampleSerializer(serializers.Serializer):
|
|
char = serializers.CharField()
|
|
integer = serializers.IntegerField()
|
|
|
|
def validate(self, attrs):
|
|
raise serializers.ValidationError({'char': 'Field error'})
|
|
|
|
serializer = ExampleSerializer(data={'char': 'abc', 'integer': 123})
|
|
assert not serializer.is_valid()
|
|
assert serializer.errors == {'char': ['Field error']}
|
|
|
|
|
|
class TestBaseSerializer:
|
|
def setup(self):
|
|
class ExampleSerializer(serializers.BaseSerializer):
|
|
def to_representation(self, obj):
|
|
return {
|
|
'id': obj['id'],
|
|
'email': obj['name'] + '@' + obj['domain']
|
|
}
|
|
|
|
def to_internal_value(self, data):
|
|
name, domain = str(data['email']).split('@')
|
|
return {
|
|
'id': int(data['id']),
|
|
'name': name,
|
|
'domain': domain,
|
|
}
|
|
|
|
self.Serializer = ExampleSerializer
|
|
|
|
def test_serialize_instance(self):
|
|
instance = {'id': 1, 'name': 'tom', 'domain': 'example.com'}
|
|
serializer = self.Serializer(instance)
|
|
assert serializer.data == {'id': 1, 'email': 'tom@example.com'}
|
|
|
|
def test_serialize_list(self):
|
|
instances = [
|
|
{'id': 1, 'name': 'tom', 'domain': 'example.com'},
|
|
{'id': 2, 'name': 'ann', 'domain': 'example.com'},
|
|
]
|
|
serializer = self.Serializer(instances, many=True)
|
|
assert serializer.data == [
|
|
{'id': 1, 'email': 'tom@example.com'},
|
|
{'id': 2, 'email': 'ann@example.com'}
|
|
]
|
|
|
|
def test_validate_data(self):
|
|
data = {'id': 1, 'email': 'tom@example.com'}
|
|
serializer = self.Serializer(data=data)
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == {
|
|
'id': 1,
|
|
'name': 'tom',
|
|
'domain': 'example.com'
|
|
}
|
|
|
|
def test_validate_list(self):
|
|
data = [
|
|
{'id': 1, 'email': 'tom@example.com'},
|
|
{'id': 2, 'email': 'ann@example.com'},
|
|
]
|
|
serializer = self.Serializer(data=data, many=True)
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == [
|
|
{'id': 1, 'name': 'tom', 'domain': 'example.com'},
|
|
{'id': 2, 'name': 'ann', 'domain': 'example.com'}
|
|
]
|
|
|
|
|
|
class TestStarredSource:
|
|
"""
|
|
Tests for `source='*'` argument, which is used for nested representations.
|
|
|
|
For example:
|
|
|
|
nested_field = NestedField(source='*')
|
|
"""
|
|
data = {
|
|
'nested1': {'a': 1, 'b': 2},
|
|
'nested2': {'c': 3, 'd': 4}
|
|
}
|
|
|
|
def setup(self):
|
|
class NestedSerializer1(serializers.Serializer):
|
|
a = serializers.IntegerField()
|
|
b = serializers.IntegerField()
|
|
|
|
class NestedSerializer2(serializers.Serializer):
|
|
c = serializers.IntegerField()
|
|
d = serializers.IntegerField()
|
|
|
|
class TestSerializer(serializers.Serializer):
|
|
nested1 = NestedSerializer1(source='*')
|
|
nested2 = NestedSerializer2(source='*')
|
|
|
|
self.Serializer = TestSerializer
|
|
|
|
def test_nested_validate(self):
|
|
"""
|
|
A nested representation is validated into a flat internal object.
|
|
"""
|
|
serializer = self.Serializer(data=self.data)
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == {
|
|
'a': 1,
|
|
'b': 2,
|
|
'c': 3,
|
|
'd': 4
|
|
}
|
|
|
|
def test_nested_serialize(self):
|
|
"""
|
|
An object can be serialized into a nested representation.
|
|
"""
|
|
instance = {'a': 1, 'b': 2, 'c': 3, 'd': 4}
|
|
serializer = self.Serializer(instance)
|
|
assert serializer.data == self.data
|
|
|
|
|
|
class TestIncorrectlyConfigured:
|
|
def test_incorrect_field_name(self):
|
|
class ExampleSerializer(serializers.Serializer):
|
|
incorrect_name = serializers.IntegerField()
|
|
|
|
class ExampleObject:
|
|
def __init__(self):
|
|
self.correct_name = 123
|
|
|
|
instance = ExampleObject()
|
|
serializer = ExampleSerializer(instance)
|
|
with pytest.raises(AttributeError) as exc_info:
|
|
serializer.data
|
|
msg = str(exc_info.value)
|
|
assert msg.startswith(
|
|
"Got AttributeError when attempting to get a value for field `incorrect_name` on serializer `ExampleSerializer`.\n"
|
|
"The serializer field might be named incorrectly and not match any attribute or key on the `ExampleObject` instance.\n"
|
|
"Original exception text was:"
|
|
)
|
|
|
|
|
|
class TestUnicodeRepr:
|
|
def test_unicode_repr(self):
|
|
class ExampleSerializer(serializers.Serializer):
|
|
example = serializers.CharField()
|
|
|
|
class ExampleObject:
|
|
def __init__(self):
|
|
self.example = '한국'
|
|
|
|
def __repr__(self):
|
|
return unicode_repr(self.example)
|
|
|
|
instance = ExampleObject()
|
|
serializer = ExampleSerializer(instance)
|
|
repr(serializer) # Should not error.
|
|
|
|
|
|
class TestNotRequiredOutput:
|
|
def test_not_required_output_for_dict(self):
|
|
"""
|
|
'required=False' should allow a dictionary key to be missing in output.
|
|
"""
|
|
class ExampleSerializer(serializers.Serializer):
|
|
omitted = serializers.CharField(required=False)
|
|
included = serializers.CharField()
|
|
|
|
serializer = ExampleSerializer(data={'included': 'abc'})
|
|
serializer.is_valid()
|
|
assert serializer.data == {'included': 'abc'}
|
|
|
|
def test_not_required_output_for_object(self):
|
|
"""
|
|
'required=False' should allow an object attribute to be missing in output.
|
|
"""
|
|
class ExampleSerializer(serializers.Serializer):
|
|
omitted = serializers.CharField(required=False)
|
|
included = serializers.CharField()
|
|
|
|
def create(self, validated_data):
|
|
return MockObject(**validated_data)
|
|
|
|
serializer = ExampleSerializer(data={'included': 'abc'})
|
|
serializer.is_valid()
|
|
serializer.save()
|
|
assert serializer.data == {'included': 'abc'}
|
|
|
|
def test_default_required_output_for_dict(self):
|
|
"""
|
|
'default="something"' should require dictionary key.
|
|
|
|
We need to handle this as the field will have an implicit
|
|
'required=False', but it should still have a value.
|
|
"""
|
|
class ExampleSerializer(serializers.Serializer):
|
|
omitted = serializers.CharField(default='abc')
|
|
included = serializers.CharField()
|
|
|
|
serializer = ExampleSerializer({'included': 'abc'})
|
|
with pytest.raises(KeyError):
|
|
serializer.data
|
|
|
|
def test_default_required_output_for_object(self):
|
|
"""
|
|
'default="something"' should require object attribute.
|
|
|
|
We need to handle this as the field will have an implicit
|
|
'required=False', but it should still have a value.
|
|
"""
|
|
class ExampleSerializer(serializers.Serializer):
|
|
omitted = serializers.CharField(default='abc')
|
|
included = serializers.CharField()
|
|
|
|
instance = MockObject(included='abc')
|
|
serializer = ExampleSerializer(instance)
|
|
with pytest.raises(AttributeError):
|
|
serializer.data
|
|
|
|
|
|
class TestCacheSerializerData:
|
|
def test_cache_serializer_data(self):
|
|
"""
|
|
Caching serializer data with pickle will drop the serializer info,
|
|
but does preserve the data itself.
|
|
"""
|
|
class ExampleSerializer(serializers.Serializer):
|
|
field1 = serializers.CharField()
|
|
field2 = serializers.CharField()
|
|
|
|
serializer = ExampleSerializer({'field1': 'a', 'field2': 'b'})
|
|
pickled = pickle.dumps(serializer.data)
|
|
data = pickle.loads(pickled)
|
|
assert data == {'field1': 'a', 'field2': 'b'}
|