mirror of
https://github.com/encode/django-rest-framework.git
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279 lines
8.7 KiB
Python
279 lines
8.7 KiB
Python
"""
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Tests to cover bulk create and update using serializers.
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"""
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from __future__ import unicode_literals
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from django.test import TestCase
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from rest_framework import serializers
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class BulkCreateSerializerTests(TestCase):
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"""
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Creating multiple instances using serializers.
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"""
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def setUp(self):
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class BookSerializer(serializers.Serializer):
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id = serializers.IntegerField()
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title = serializers.CharField(max_length=100)
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author = serializers.CharField(max_length=100)
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self.BookSerializer = BookSerializer
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def test_bulk_create_success(self):
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"""
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Correct bulk update serialization should return the input data.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 1,
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'title': 'If this is a man',
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'author': 'Primo Levi'
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}, {
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'id': 2,
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'title': 'The wind-up bird chronicle',
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'author': 'Haruki Murakami'
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}
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]
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serializer = self.BookSerializer(data=data, many=True)
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self.assertEqual(serializer.is_valid(), True)
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self.assertEqual(serializer.object, data)
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def test_bulk_create_errors(self):
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"""
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Correct bulk update serialization should return the input data.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 1,
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'title': 'If this is a man',
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'author': 'Primo Levi'
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}, {
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'id': 'foo',
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'title': 'The wind-up bird chronicle',
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'author': 'Haruki Murakami'
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}
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]
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expected_errors = [
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{},
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{},
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{'id': ['Enter a whole number.']}
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]
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serializer = self.BookSerializer(data=data, many=True)
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self.assertEqual(serializer.is_valid(), False)
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self.assertEqual(serializer.errors, expected_errors)
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def test_invalid_list_datatype(self):
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"""
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Data containing list of incorrect data type should return errors.
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"""
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data = ['foo', 'bar', 'baz']
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serializer = self.BookSerializer(data=data, many=True)
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self.assertEqual(serializer.is_valid(), False)
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expected_errors = [
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{'non_field_errors': ['Invalid data']},
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{'non_field_errors': ['Invalid data']},
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{'non_field_errors': ['Invalid data']}
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]
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self.assertEqual(serializer.errors, expected_errors)
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def test_invalid_single_datatype(self):
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"""
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Data containing a single incorrect data type should return errors.
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"""
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data = 123
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serializer = self.BookSerializer(data=data, many=True)
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self.assertEqual(serializer.is_valid(), False)
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expected_errors = {'non_field_errors': ['Expected a list of items.']}
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self.assertEqual(serializer.errors, expected_errors)
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def test_invalid_single_object(self):
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"""
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Data containing only a single object, instead of a list of objects
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should return errors.
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"""
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data = {
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}
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serializer = self.BookSerializer(data=data, many=True)
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self.assertEqual(serializer.is_valid(), False)
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expected_errors = {'non_field_errors': ['Expected a list of items.']}
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self.assertEqual(serializer.errors, expected_errors)
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class BulkUpdateSerializerTests(TestCase):
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"""
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Updating multiple instances using serializers.
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"""
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def setUp(self):
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class Book(object):
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"""
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A data type that can be persisted to a mock storage backend
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with `.save()` and `.delete()`.
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"""
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object_map = {}
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def __init__(self, id, title, author):
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self.id = id
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self.title = title
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self.author = author
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def save(self):
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Book.object_map[self.id] = self
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def delete(self):
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del Book.object_map[self.id]
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class BookSerializer(serializers.Serializer):
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id = serializers.IntegerField()
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title = serializers.CharField(max_length=100)
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author = serializers.CharField(max_length=100)
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def restore_object(self, attrs, instance=None):
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if instance:
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instance.id = attrs['id']
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instance.title = attrs['title']
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instance.author = attrs['author']
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return instance
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return Book(**attrs)
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self.Book = Book
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self.BookSerializer = BookSerializer
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 1,
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'title': 'If this is a man',
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'author': 'Primo Levi'
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}, {
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'id': 2,
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'title': 'The wind-up bird chronicle',
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'author': 'Haruki Murakami'
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}
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]
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for item in data:
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book = Book(item['id'], item['title'], item['author'])
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book.save()
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def books(self):
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"""
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Return all the objects in the mock storage backend.
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"""
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return self.Book.object_map.values()
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def test_bulk_update_success(self):
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"""
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Correct bulk update serialization should return the input data.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 2,
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'title': 'Kafka on the shore',
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'author': 'Haruki Murakami'
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}
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]
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serializer = self.BookSerializer(self.books(), data=data, many=True, allow_add_remove=True)
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self.assertEqual(serializer.is_valid(), True)
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self.assertEqual(serializer.data, data)
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serializer.save()
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new_data = self.BookSerializer(self.books(), many=True).data
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self.assertEqual(data, new_data)
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def test_bulk_update_and_create(self):
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"""
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Bulk update serialization may also include created items.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 3,
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'title': 'Kafka on the shore',
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'author': 'Haruki Murakami'
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}
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]
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serializer = self.BookSerializer(self.books(), data=data, many=True, allow_add_remove=True)
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self.assertEqual(serializer.is_valid(), True)
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self.assertEqual(serializer.data, data)
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serializer.save()
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new_data = self.BookSerializer(self.books(), many=True).data
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self.assertEqual(data, new_data)
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def test_bulk_update_invalid_create(self):
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"""
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Bulk update serialization without allow_add_remove may not create items.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 3,
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'title': 'Kafka on the shore',
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'author': 'Haruki Murakami'
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}
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]
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expected_errors = [
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{},
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{'non_field_errors': ['Cannot create a new item, only existing items may be updated.']}
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]
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serializer = self.BookSerializer(self.books(), data=data, many=True)
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self.assertEqual(serializer.is_valid(), False)
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self.assertEqual(serializer.errors, expected_errors)
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def test_bulk_update_error(self):
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"""
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Incorrect bulk update serialization should return error data.
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"""
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data = [
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{
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'id': 0,
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'title': 'The electric kool-aid acid test',
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'author': 'Tom Wolfe'
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}, {
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'id': 'foo',
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'title': 'Kafka on the shore',
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'author': 'Haruki Murakami'
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}
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]
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expected_errors = [
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{},
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{'id': ['Enter a whole number.']}
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]
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serializer = self.BookSerializer(self.books(), data=data, many=True, allow_add_remove=True)
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self.assertEqual(serializer.is_valid(), False)
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self.assertEqual(serializer.errors, expected_errors)
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