mirror of
https://github.com/encode/django-rest-framework.git
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357 lines
12 KiB
Python
357 lines
12 KiB
Python
import pytest
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from django.db import models
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from django.http import QueryDict
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from django.test import TestCase
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from rest_framework import serializers
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from rest_framework.compat import postgres_fields
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from rest_framework.serializers import raise_errors_on_nested_writes
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class TestNestedSerializer:
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def setup_method(self):
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class NestedSerializer(serializers.Serializer):
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one = serializers.IntegerField(max_value=10)
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two = serializers.IntegerField(max_value=10)
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class TestSerializer(serializers.Serializer):
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nested = NestedSerializer()
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self.Serializer = TestSerializer
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def test_nested_validate(self):
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input_data = {
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'nested': {
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'one': '1',
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'two': '2',
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}
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}
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expected_data = {
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'nested': {
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'one': 1,
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'two': 2,
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}
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}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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assert serializer.validated_data == expected_data
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def test_nested_serialize_empty(self):
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expected_data = {
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'nested': {
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'one': None,
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'two': None
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}
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}
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serializer = self.Serializer()
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assert serializer.data == expected_data
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def test_nested_serialize_no_data(self):
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data = None
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serializer = self.Serializer(data=data)
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assert not serializer.is_valid()
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assert serializer.errors == {'non_field_errors': ['No data provided']}
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class TestNotRequiredNestedSerializer:
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def setup_method(self):
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class NestedSerializer(serializers.Serializer):
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one = serializers.IntegerField(max_value=10)
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class TestSerializer(serializers.Serializer):
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nested = NestedSerializer(required=False)
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self.Serializer = TestSerializer
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def test_json_validate(self):
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input_data = {}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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input_data = {'nested': {'one': '1'}}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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def test_multipart_validate(self):
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input_data = QueryDict('')
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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input_data = QueryDict('nested[one]=1')
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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class TestNestedSerializerWithMany:
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def setup_method(self):
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class NestedSerializer(serializers.Serializer):
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example = serializers.IntegerField(max_value=10)
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class TestSerializer(serializers.Serializer):
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allow_null = NestedSerializer(many=True, allow_null=True)
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not_allow_null = NestedSerializer(many=True)
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allow_empty = NestedSerializer(many=True, allow_empty=True)
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not_allow_empty = NestedSerializer(many=True, allow_empty=False)
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self.Serializer = TestSerializer
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def test_null_allowed_if_allow_null_is_set(self):
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input_data = {
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'allow_null': None,
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'not_allow_null': [{'example': '2'}, {'example': '3'}],
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'allow_empty': [{'example': '2'}],
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'not_allow_empty': [{'example': '2'}],
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}
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expected_data = {
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'allow_null': None,
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'not_allow_null': [{'example': 2}, {'example': 3}],
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'allow_empty': [{'example': 2}],
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'not_allow_empty': [{'example': 2}],
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}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid(), serializer.errors
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assert serializer.validated_data == expected_data
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def test_null_is_not_allowed_if_allow_null_is_not_set(self):
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input_data = {
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'allow_null': None,
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'not_allow_null': None,
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'allow_empty': [{'example': '2'}],
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'not_allow_empty': [{'example': '2'}],
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}
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serializer = self.Serializer(data=input_data)
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assert not serializer.is_valid()
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expected_errors = {'not_allow_null': [serializer.error_messages['null']]}
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assert serializer.errors == expected_errors
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def test_run_the_field_validation_even_if_the_field_is_null(self):
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class TestSerializer(self.Serializer):
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validation_was_run = False
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def validate_allow_null(self, value):
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TestSerializer.validation_was_run = True
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return value
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input_data = {
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'allow_null': None,
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'not_allow_null': [{'example': 2}],
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'allow_empty': [{'example': 2}],
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'not_allow_empty': [{'example': 2}],
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}
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serializer = TestSerializer(data=input_data)
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assert serializer.is_valid()
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assert serializer.validated_data == input_data
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assert TestSerializer.validation_was_run
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def test_empty_allowed_if_allow_empty_is_set(self):
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input_data = {
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'allow_null': [{'example': '2'}],
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'not_allow_null': [{'example': '2'}],
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'allow_empty': [],
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'not_allow_empty': [{'example': '2'}],
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}
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expected_data = {
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'allow_null': [{'example': 2}],
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'not_allow_null': [{'example': 2}],
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'allow_empty': [],
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'not_allow_empty': [{'example': 2}],
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}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid(), serializer.errors
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assert serializer.validated_data == expected_data
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def test_empty_not_allowed_if_allow_empty_is_set_to_false(self):
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input_data = {
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'allow_null': [{'example': '2'}],
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'not_allow_null': [{'example': '2'}],
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'allow_empty': [],
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'not_allow_empty': [],
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}
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serializer = self.Serializer(data=input_data)
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assert not serializer.is_valid()
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expected_errors = {'not_allow_empty': {'non_field_errors': [serializers.ListSerializer.default_error_messages['empty']]}}
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assert serializer.errors == expected_errors
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class TestNestedSerializerWithList:
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def setup_method(self):
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class NestedSerializer(serializers.Serializer):
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example = serializers.MultipleChoiceField(choices=[1, 2, 3])
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class TestSerializer(serializers.Serializer):
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nested = NestedSerializer()
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self.Serializer = TestSerializer
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def test_nested_serializer_with_list_json(self):
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input_data = {
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'nested': {
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'example': [1, 2],
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}
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}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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assert serializer.validated_data['nested']['example'] == {1, 2}
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def test_nested_serializer_with_list_multipart(self):
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input_data = QueryDict('nested.example=1&nested.example=2')
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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assert serializer.validated_data['nested']['example'] == {1, 2}
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class TestNotRequiredNestedSerializerWithMany:
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def setup_method(self):
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class NestedSerializer(serializers.Serializer):
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one = serializers.IntegerField(max_value=10)
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class TestSerializer(serializers.Serializer):
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nested = NestedSerializer(required=False, many=True)
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self.Serializer = TestSerializer
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def test_json_validate(self):
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input_data = {}
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serializer = self.Serializer(data=input_data)
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# request is empty, therefore 'nested' should not be in serializer.data
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assert serializer.is_valid()
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assert 'nested' not in serializer.validated_data
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input_data = {'nested': [{'one': '1'}, {'one': 2}]}
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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assert 'nested' in serializer.validated_data
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def test_multipart_validate(self):
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# leave querydict empty
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input_data = QueryDict('')
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serializer = self.Serializer(data=input_data)
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# the querydict is empty, therefore 'nested' should not be in serializer.data
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assert serializer.is_valid()
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assert 'nested' not in serializer.validated_data
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input_data = QueryDict('nested[0]one=1&nested[1]one=2')
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serializer = self.Serializer(data=input_data)
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assert serializer.is_valid()
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assert 'nested' in serializer.validated_data
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class NestedWriteProfile(models.Model):
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address = models.CharField(max_length=100)
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class NestedWritePerson(models.Model):
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profile = models.ForeignKey(NestedWriteProfile, on_delete=models.CASCADE)
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class TestNestedWriteErrors(TestCase):
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# tests for rests_framework.serializers.raise_errors_on_nested_writes
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def test_nested_serializer_error(self):
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class ProfileSerializer(serializers.ModelSerializer):
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class Meta:
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model = NestedWriteProfile
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fields = ['address']
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class NestedProfileSerializer(serializers.ModelSerializer):
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profile = ProfileSerializer()
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class Meta:
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model = NestedWritePerson
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fields = ['profile']
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serializer = NestedProfileSerializer(data={'profile': {'address': '52 festive road'}})
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assert serializer.is_valid()
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assert serializer.validated_data == {'profile': {'address': '52 festive road'}}
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with pytest.raises(AssertionError) as exc_info:
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serializer.save()
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assert str(exc_info.value) == (
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'The `.create()` method does not support writable nested fields by '
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'default.\nWrite an explicit `.create()` method for serializer '
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'`tests.test_serializer_nested.NestedProfileSerializer`, or set '
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'`read_only=True` on nested serializer fields.'
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)
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def test_dotted_source_field_error(self):
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class DottedAddressSerializer(serializers.ModelSerializer):
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address = serializers.CharField(source='profile.address')
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class Meta:
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model = NestedWritePerson
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fields = ['address']
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serializer = DottedAddressSerializer(data={'address': '52 festive road'})
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assert serializer.is_valid()
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assert serializer.validated_data == {'profile': {'address': '52 festive road'}}
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with pytest.raises(AssertionError) as exc_info:
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serializer.save()
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assert str(exc_info.value) == (
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'The `.create()` method does not support writable dotted-source '
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'fields by default.\nWrite an explicit `.create()` method for '
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'serializer `tests.test_serializer_nested.DottedAddressSerializer`, '
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'or set `read_only=True` on dotted-source serializer fields.'
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)
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if postgres_fields:
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class NonRelationalPersonModel(models.Model):
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"""Model declaring a postgres JSONField"""
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data = postgres_fields.JSONField()
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class Meta:
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required_db_features = {'supports_json_field'}
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@pytest.mark.skipif(not postgres_fields, reason='psycopg2 is not installed')
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class TestNestedNonRelationalFieldWrite:
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"""
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Test that raise_errors_on_nested_writes does not raise `AssertionError` when the
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model field is not a relation.
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"""
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def test_nested_serializer_create_and_update(self):
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class NonRelationalPersonDataSerializer(serializers.Serializer):
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occupation = serializers.CharField()
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class NonRelationalPersonSerializer(serializers.ModelSerializer):
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data = NonRelationalPersonDataSerializer()
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class Meta:
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model = NonRelationalPersonModel
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fields = ['data']
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serializer = NonRelationalPersonSerializer(data={'data': {'occupation': 'developer'}})
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assert serializer.is_valid()
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assert serializer.validated_data == {'data': {'occupation': 'developer'}}
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raise_errors_on_nested_writes('create', serializer, serializer.validated_data)
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raise_errors_on_nested_writes('update', serializer, serializer.validated_data)
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def test_dotted_source_field_create_and_update(self):
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class DottedNonRelationalPersonSerializer(serializers.ModelSerializer):
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occupation = serializers.CharField(source='data.occupation')
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class Meta:
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model = NonRelationalPersonModel
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fields = ['occupation']
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serializer = DottedNonRelationalPersonSerializer(data={'occupation': 'developer'})
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assert serializer.is_valid()
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assert serializer.validated_data == {'data': {'occupation': 'developer'}}
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raise_errors_on_nested_writes('create', serializer, serializer.validated_data)
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raise_errors_on_nested_writes('update', serializer, serializer.validated_data)
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