mirror of
https://github.com/encode/django-rest-framework.git
synced 2024-11-14 05:36:50 +03:00
686 lines
23 KiB
Python
686 lines
23 KiB
Python
import sys
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import pytest
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from django.http import QueryDict
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from django.utils.datastructures import MultiValueDict
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from rest_framework import serializers
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from rest_framework.exceptions import ErrorDetail
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class BasicObject:
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"""
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A mock object for testing serializer save behavior.
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"""
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def __init__(self, **kwargs):
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self._data = kwargs
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for key, value in kwargs.items():
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setattr(self, key, value)
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def __eq__(self, other):
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if self._data.keys() != other._data.keys():
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return False
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for key in self._data:
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if self._data[key] != other._data[key]:
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return False
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return True
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class TestListSerializer:
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"""
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Tests for using a ListSerializer as a top-level serializer.
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Note that this is in contrast to using ListSerializer as a field.
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"""
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def setup(self):
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class IntegerListSerializer(serializers.ListSerializer):
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child = serializers.IntegerField()
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self.Serializer = IntegerListSerializer
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def test_validate(self):
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"""
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Validating a list of items should return a list of validated items.
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"""
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input_data = ["123", "456"]
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expected_output = [123, 456]
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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_output
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def test_validate_html_input(self):
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"""
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HTML input should be able to mock list structures using [x] style ids.
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"""
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input_data = MultiValueDict({"[0]": ["123"], "[1]": ["456"]})
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expected_output = [123, 456]
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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_output
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@pytest.mark.skipif(
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sys.version_info < (3, 7),
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reason="subscriptable classes requires Python 3.7 or higher",
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)
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def test_list_serializer_is_subscriptable(self):
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assert serializers.ListSerializer is serializers.ListSerializer["foo"]
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class TestListSerializerContainingNestedSerializer:
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"""
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Tests for using a ListSerializer containing another serializer.
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"""
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def setup(self):
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class TestSerializer(serializers.Serializer):
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integer = serializers.IntegerField()
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boolean = serializers.BooleanField()
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def create(self, validated_data):
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return BasicObject(**validated_data)
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class ObjectListSerializer(serializers.ListSerializer):
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child = TestSerializer()
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self.Serializer = ObjectListSerializer
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def test_validate(self):
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"""
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Validating a list of dictionaries should return a list of
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validated dictionaries.
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"""
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input_data = [
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{"integer": "123", "boolean": "true"},
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{"integer": "456", "boolean": "false"}
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]
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expected_output = [
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{"integer": 123, "boolean": True},
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{"integer": 456, "boolean": False}
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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_output
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def test_create(self):
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"""
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Creating from a list of dictionaries should return a list of objects.
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"""
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input_data = [
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{"integer": "123", "boolean": "true"},
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{"integer": "456", "boolean": "false"}
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]
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expected_output = [
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BasicObject(integer=123, boolean=True),
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BasicObject(integer=456, boolean=False),
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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.save() == expected_output
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def test_serialize(self):
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"""
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Serialization of a list of objects should return a list of dictionaries.
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"""
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input_objects = [
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BasicObject(integer=123, boolean=True),
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BasicObject(integer=456, boolean=False)
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]
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expected_output = [
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{"integer": 123, "boolean": True},
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{"integer": 456, "boolean": False}
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]
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serializer = self.Serializer(input_objects)
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assert serializer.data == expected_output
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def test_validate_html_input(self):
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"""
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HTML input should be able to mock list structures using [x]
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style prefixes.
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"""
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input_data = MultiValueDict({
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"[0]integer": ["123"],
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"[0]boolean": ["true"],
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"[1]integer": ["456"],
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"[1]boolean": ["false"]
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})
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expected_output = [
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{"integer": 123, "boolean": True},
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{"integer": 456, "boolean": False}
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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_output
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class TestNestedListSerializer:
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"""
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Tests for using a ListSerializer as a field.
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"""
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def setup(self):
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class TestSerializer(serializers.Serializer):
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integers = serializers.ListSerializer(child=serializers.IntegerField())
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booleans = serializers.ListSerializer(child=serializers.BooleanField())
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def create(self, validated_data):
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return BasicObject(**validated_data)
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self.Serializer = TestSerializer
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def test_validate(self):
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"""
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Validating a list of items should return a list of validated items.
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"""
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input_data = {
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"integers": ["123", "456"],
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"booleans": ["true", "false"]
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}
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expected_output = {
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"integers": [123, 456],
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"booleans": [True, False]
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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_output
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def test_create(self):
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"""
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Creation with a list of items return an object with an attribute that
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is a list of items.
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"""
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input_data = {
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"integers": ["123", "456"],
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"booleans": ["true", "false"]
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}
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expected_output = BasicObject(
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integers=[123, 456],
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booleans=[True, False]
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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.save() == expected_output
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def test_serialize(self):
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"""
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Serialization of a list of items should return a list of items.
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"""
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input_object = BasicObject(
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integers=[123, 456],
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booleans=[True, False]
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)
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expected_output = {
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"integers": [123, 456],
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"booleans": [True, False]
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}
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serializer = self.Serializer(input_object)
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assert serializer.data == expected_output
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def test_validate_html_input(self):
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"""
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HTML input should be able to mock list structures using [x]
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style prefixes.
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"""
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input_data = MultiValueDict({
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"integers[0]": ["123"],
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"integers[1]": ["456"],
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"booleans[0]": ["true"],
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"booleans[1]": ["false"]
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})
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expected_output = {
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"integers": [123, 456],
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"booleans": [True, False]
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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_output
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class TestNestedListSerializerAllowEmpty:
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"""Tests the behaviour of allow_empty=False when a ListSerializer is used as a field."""
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@pytest.mark.parametrize('partial', (False, True))
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def test_allow_empty_true(self, partial):
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"""
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If allow_empty is True, empty lists should be allowed regardless of the value
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of partial on the parent serializer.
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"""
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class ChildSerializer(serializers.Serializer):
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id = serializers.IntegerField()
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class ParentSerializer(serializers.Serializer):
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ids = ChildSerializer(many=True, allow_empty=True)
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serializer = ParentSerializer(data={'ids': []}, partial=partial)
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assert serializer.is_valid()
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assert serializer.validated_data == {
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'ids': [],
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}
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@pytest.mark.parametrize('partial', (False, True))
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def test_allow_empty_false(self, partial):
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"""
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If allow_empty is False, empty lists should fail validation regardless of the value
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of partial on the parent serializer.
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"""
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class ChildSerializer(serializers.Serializer):
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id = serializers.IntegerField()
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class ParentSerializer(serializers.Serializer):
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ids = ChildSerializer(many=True, allow_empty=False)
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serializer = ParentSerializer(data={'ids': []}, partial=partial)
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assert not serializer.is_valid()
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assert serializer.errors == {
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'ids': {
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'non_field_errors': [
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ErrorDetail(string='This list may not be empty.', code='empty')],
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}
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}
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class TestNestedListOfListsSerializer:
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def setup(self):
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class TestSerializer(serializers.Serializer):
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integers = serializers.ListSerializer(
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child=serializers.ListSerializer(
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child=serializers.IntegerField()
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)
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)
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booleans = serializers.ListSerializer(
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child=serializers.ListSerializer(
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child=serializers.BooleanField()
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)
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)
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self.Serializer = TestSerializer
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def test_validate(self):
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input_data = {
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'integers': [['123', '456'], ['789', '0']],
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'booleans': [['true', 'true'], ['false', 'true']]
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}
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expected_output = {
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"integers": [[123, 456], [789, 0]],
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"booleans": [[True, True], [False, True]]
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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_output
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def test_validate_html_input(self):
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"""
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HTML input should be able to mock lists of lists using [x][y]
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style prefixes.
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"""
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input_data = MultiValueDict({
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"integers[0][0]": ["123"],
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"integers[0][1]": ["456"],
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"integers[1][0]": ["789"],
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"integers[1][1]": ["000"],
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"booleans[0][0]": ["true"],
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"booleans[0][1]": ["true"],
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"booleans[1][0]": ["false"],
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"booleans[1][1]": ["true"]
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})
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expected_output = {
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"integers": [[123, 456], [789, 0]],
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"booleans": [[True, True], [False, True]]
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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_output
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class TestListSerializerClass:
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"""Tests for a custom list_serializer_class."""
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def test_list_serializer_class_validate(self):
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class CustomListSerializer(serializers.ListSerializer):
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def validate(self, attrs):
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raise serializers.ValidationError('Non field error')
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class TestSerializer(serializers.Serializer):
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class Meta:
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list_serializer_class = CustomListSerializer
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serializer = TestSerializer(data=[], many=True)
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assert not serializer.is_valid()
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assert serializer.errors == {'non_field_errors': ['Non field error']}
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class TestSerializerPartialUsage:
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"""
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When not submitting key for list fields or multiple choice, partial
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serialization should result in an empty state (key not there), not
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an empty list.
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Regression test for Github issue #2761.
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"""
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def test_partial_listfield(self):
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class ListSerializer(serializers.Serializer):
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listdata = serializers.ListField()
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serializer = ListSerializer(data=MultiValueDict(), partial=True)
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result = serializer.to_internal_value(data={})
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assert "listdata" not in result
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assert serializer.is_valid()
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assert serializer.validated_data == {}
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assert serializer.errors == {}
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def test_partial_multiplechoice(self):
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class MultipleChoiceSerializer(serializers.Serializer):
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multiplechoice = serializers.MultipleChoiceField(choices=[1, 2, 3])
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serializer = MultipleChoiceSerializer(data=MultiValueDict(), partial=True)
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result = serializer.to_internal_value(data={})
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assert "multiplechoice" not in result
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assert serializer.is_valid()
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assert serializer.validated_data == {}
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assert serializer.errors == {}
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def test_allow_empty_true(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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instance = [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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serializer = ListSerializer(instance, data=[], partial=True, many=True)
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assert serializer.is_valid()
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assert serializer.validated_data == []
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assert serializer.errors == []
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def test_update_allow_empty_true(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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instance = [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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input_data = [{'update_field': 31}, {'update_field': 41}]
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updated_data_list = [
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{'update_field': 31, 'store_field': 12},
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{'update_field': 41, 'store_field': 22},
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]
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serializer = ListSerializer(
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instance, data=input_data, partial=True, many=True)
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assert serializer.is_valid()
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for index, data in enumerate(serializer.validated_data):
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for key, value in data.items():
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assert value == updated_data_list[index][key]
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assert serializer.errors == []
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def test_allow_empty_false(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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instance = [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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serializer = ListSerializer(
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instance, data=[], allow_empty=False, partial=True, many=True)
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assert not serializer.is_valid()
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assert serializer.validated_data == []
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assert len(serializer.errors) == 1
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assert serializer.errors['non_field_errors'][0] == 'This list may not be empty.'
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def test_update_allow_empty_false(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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instance = [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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input_data = [{'update_field': 31}, {'update_field': 41}]
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updated_data_list = [
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{'update_field': 31, 'store_field': 12},
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{'update_field': 41, 'store_field': 22},
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]
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serializer = ListSerializer(
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instance, data=input_data, allow_empty=False, partial=True, many=True)
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assert serializer.is_valid()
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for index, data in enumerate(serializer.validated_data):
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for key, value in data.items():
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assert value == updated_data_list[index][key]
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assert serializer.errors == []
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def test_as_field_allow_empty_true(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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class Serializer(serializers.Serializer):
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extra_field = serializers.IntegerField()
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list_field = ListSerializer(many=True)
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instance = {
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'extra_field': 1,
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'list_field': [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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}
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serializer = Serializer(instance, data={}, partial=True)
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assert serializer.is_valid()
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assert serializer.validated_data == {}
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assert serializer.errors == {}
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def test_udate_as_field_allow_empty_true(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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class Serializer(serializers.Serializer):
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extra_field = serializers.IntegerField()
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list_field = ListSerializer(many=True)
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instance = {
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'extra_field': 1,
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'list_field': [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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}
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input_data_1 = {'extra_field': 2}
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input_data_2 = {
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'list_field': [
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{'update_field': 31},
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{'update_field': 41},
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]
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}
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# data_1
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serializer = Serializer(instance, data=input_data_1, partial=True)
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assert serializer.is_valid()
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assert len(serializer.validated_data) == 1
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assert serializer.validated_data['extra_field'] == 2
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assert serializer.errors == {}
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# data_2
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serializer = Serializer(instance, data=input_data_2, partial=True)
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assert serializer.is_valid()
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updated_data_list = [
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{'update_field': 31, 'store_field': 12},
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{'update_field': 41, 'store_field': 22},
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]
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for index, data in enumerate(serializer.validated_data['list_field']):
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for key, value in data.items():
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assert value == updated_data_list[index][key]
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assert serializer.errors == {}
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def test_as_field_allow_empty_false(self):
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class ListSerializer(serializers.Serializer):
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update_field = serializers.IntegerField()
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store_field = serializers.IntegerField()
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class Serializer(serializers.Serializer):
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extra_field = serializers.IntegerField()
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list_field = ListSerializer(many=True, allow_empty=False)
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instance = {
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'extra_field': 1,
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'list_field': [
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{'update_field': 11, 'store_field': 12},
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{'update_field': 21, 'store_field': 22},
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]
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}
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|
|
serializer = Serializer(instance, data={}, partial=True)
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == {}
|
|
assert serializer.errors == {}
|
|
|
|
def test_update_as_field_allow_empty_false(self):
|
|
class ListSerializer(serializers.Serializer):
|
|
update_field = serializers.IntegerField()
|
|
store_field = serializers.IntegerField()
|
|
|
|
class Serializer(serializers.Serializer):
|
|
extra_field = serializers.IntegerField()
|
|
list_field = ListSerializer(many=True, allow_empty=False)
|
|
|
|
instance = {
|
|
'extra_field': 1,
|
|
'list_field': [
|
|
{'update_field': 11, 'store_field': 12},
|
|
{'update_field': 21, 'store_field': 22},
|
|
]
|
|
}
|
|
input_data_1 = {'extra_field': 2}
|
|
input_data_2 = {
|
|
'list_field': [
|
|
{'update_field': 31},
|
|
{'update_field': 41},
|
|
]
|
|
}
|
|
updated_data_list = [
|
|
{'update_field': 31, 'store_field': 12},
|
|
{'update_field': 41, 'store_field': 22},
|
|
]
|
|
|
|
# data_1
|
|
serializer = Serializer(instance, data=input_data_1, partial=True)
|
|
assert serializer.is_valid()
|
|
assert serializer.errors == {}
|
|
|
|
# data_2
|
|
serializer = Serializer(instance, data=input_data_2, partial=True)
|
|
assert serializer.is_valid()
|
|
|
|
for index, data in enumerate(serializer.validated_data['list_field']):
|
|
for key, value in data.items():
|
|
assert value == updated_data_list[index][key]
|
|
|
|
assert serializer.errors == {}
|
|
|
|
|
|
class TestEmptyListSerializer:
|
|
"""
|
|
Tests the behaviour of ListSerializers when there is no data passed to it
|
|
"""
|
|
|
|
def setup(self):
|
|
class ExampleListSerializer(serializers.ListSerializer):
|
|
child = serializers.IntegerField()
|
|
|
|
self.Serializer = ExampleListSerializer
|
|
|
|
def test_nested_serializer_with_list_json(self):
|
|
# pass an empty array to the serializer
|
|
input_data = []
|
|
|
|
serializer = self.Serializer(data=input_data)
|
|
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == []
|
|
|
|
def test_nested_serializer_with_list_multipart(self):
|
|
# pass an "empty" QueryDict to the serializer (should be the same as an empty array)
|
|
input_data = QueryDict('')
|
|
serializer = self.Serializer(data=input_data)
|
|
|
|
assert serializer.is_valid()
|
|
assert serializer.validated_data == []
|
|
|
|
|
|
class TestMaxMinLengthListSerializer:
|
|
"""
|
|
Tests the behaviour of ListSerializers when max_length and min_length are used
|
|
"""
|
|
|
|
def setup(self):
|
|
class IntegerSerializer(serializers.Serializer):
|
|
some_int = serializers.IntegerField()
|
|
|
|
class MaxLengthSerializer(serializers.Serializer):
|
|
many_int = IntegerSerializer(many=True, max_length=5)
|
|
|
|
class MinLengthSerializer(serializers.Serializer):
|
|
many_int = IntegerSerializer(many=True, min_length=3)
|
|
|
|
class MaxMinLengthSerializer(serializers.Serializer):
|
|
many_int = IntegerSerializer(many=True, min_length=3, max_length=5)
|
|
|
|
self.MaxLengthSerializer = MaxLengthSerializer
|
|
self.MinLengthSerializer = MinLengthSerializer
|
|
self.MaxMinLengthSerializer = MaxMinLengthSerializer
|
|
|
|
def test_min_max_length_two_items(self):
|
|
input_data = {'many_int': [{'some_int': i} for i in range(2)]}
|
|
|
|
max_serializer = self.MaxLengthSerializer(data=input_data)
|
|
min_serializer = self.MinLengthSerializer(data=input_data)
|
|
max_min_serializer = self.MaxMinLengthSerializer(data=input_data)
|
|
|
|
assert max_serializer.is_valid()
|
|
assert max_serializer.validated_data == input_data
|
|
|
|
assert not min_serializer.is_valid()
|
|
|
|
assert not max_min_serializer.is_valid()
|
|
|
|
def test_min_max_length_four_items(self):
|
|
input_data = {'many_int': [{'some_int': i} for i in range(4)]}
|
|
|
|
max_serializer = self.MaxLengthSerializer(data=input_data)
|
|
min_serializer = self.MinLengthSerializer(data=input_data)
|
|
max_min_serializer = self.MaxMinLengthSerializer(data=input_data)
|
|
|
|
assert max_serializer.is_valid()
|
|
assert max_serializer.validated_data == input_data
|
|
|
|
assert min_serializer.is_valid()
|
|
assert min_serializer.validated_data == input_data
|
|
|
|
assert max_min_serializer.is_valid()
|
|
assert min_serializer.validated_data == input_data
|
|
|
|
def test_min_max_length_six_items(self):
|
|
input_data = {'many_int': [{'some_int': i} for i in range(6)]}
|
|
|
|
max_serializer = self.MaxLengthSerializer(data=input_data)
|
|
min_serializer = self.MinLengthSerializer(data=input_data)
|
|
max_min_serializer = self.MaxMinLengthSerializer(data=input_data)
|
|
|
|
assert not max_serializer.is_valid()
|
|
|
|
assert min_serializer.is_valid()
|
|
assert min_serializer.validated_data == input_data
|
|
|
|
assert not max_min_serializer.is_valid()
|