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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
test_django-rest-framework-nested-resource
------------
Tests for `django-rest-framework-nested-resource` models module.
"""
from django.test import TestCase
from django.core.urlresolvers import reverse
from rest_framework import status
from tests.models import (
ManyToManyTargetModel,
ManyToManySourceModel,
)
class NestedManyToManyRelationshipTest(TestCase):
"""
Test nested resources when the nested model has the ManyToMany relationship
declared on it.
"""
def test_list_view_filtered_correctly(self):
"""
Test that the list view /m2m-targets/<target_pk>/m2m-sources/ is
filtered correctly to only show objects related to the
`ManyToManyTargetModel` designated by the url.
"""
# Generate the primary model for the url
target_a = ManyToManyTargetModel.objects.create()
url = reverse('nested-m2m-sources-list', kwargs={'target_pk': target_a.pk})
# Generate another `ManyToManyTargetModel` instance to ensure instances
# that are only associated with it are not shown.
target_b = ManyToManyTargetModel.objects.create()
source_a = ManyToManySourceModel.objects.create()
source_b = ManyToManySourceModel.objects.create()
source_c = ManyToManySourceModel.objects.create()
# `target_a` is linked to only `source_a` and `source_b`
target_a.sources.add(source_a)
target_a.sources.add(source_b)
# `target_b` is linked to only `source_b` and `source_c`
target_b.sources.add(source_b)
target_b.sources.add(source_c)
response = self.client.get(url)
self.assertEqual(
response.status_code,
status.HTTP_200_OK,
msg=response.data,
)
self.assertEqual(len(response.data), 2)
returned_pks = set([obj['id'] for obj in response.data])
self.assertIn(source_a.pk, returned_pks)
self.assertIn(source_b.pk, returned_pks)
def test_detail_view_filtered_correctly(self):
"""
Test that the nested detail view allows accessing related
`ManyToManySourceModel` instances.
"""
# Generate the a target and source, and link them through the m2m
# relationship.
target = ManyToManyTargetModel.objects.create()
source = ManyToManySourceModel.objects.create()
target.sources.add(source)
url = reverse(
'nested-m2m-sources-detail',
kwargs={'target_pk': target.pk, 'pk': source.pk})
response = self.client.get(url)
self.assertEqual(
response.status_code,
status.HTTP_200_OK,
msg=response.data,
)
self.assertEqual(response.data.get('id'), source.pk)
class NestedReverseManyToManyRelationshipTest(TestCase):
"""
Test nested resources when the parent model has the ManyToMany relationship
declared on it.
"""
def test_list_view_filtered_correctly(self):
"""
Test that the list view /m2m-sources/<source_pk>/m2m-targets/ is
filtered correctly to only show objects related to the
`ManyToManyTargetModel` designated by the url.
"""
# Generate the primary model for the url
source_a = ManyToManySourceModel.objects.create()
url = reverse('nested-m2m-targets-list', kwargs={'source_pk': source_a.pk})
# Generate another `ManyToManySourceModel` instance to ensure instances
# that are only associated with it are not shown.
source_b = ManyToManySourceModel.objects.create()
target_a = ManyToManyTargetModel.objects.create()
target_b = ManyToManyTargetModel.objects.create()
target_c = ManyToManyTargetModel.objects.create()
# `target_a` is linked to only `source_a` and `source_b`
source_a.targets.add(target_a)
source_a.targets.add(target_b)
# `target_b` is linked to only `source_b` and `source_c`
source_b.targets.add(target_b)
source_b.targets.add(target_c)
response = self.client.get(url)
self.assertEqual(
response.status_code,
status.HTTP_200_OK,
msg=response.data,
)
self.assertEqual(len(response.data), 2)
returned_pks = set([obj['id'] for obj in response.data])
self.assertIn(target_a.pk, returned_pks)
self.assertIn(target_b.pk, returned_pks)
def test_detail_view_filtered_correctly(self):
"""
Test that the nested detail view allows accessing related
`ManyToManyTargetModel` instances.
"""
# Generate the a source and target, and link them through the m2m
# relationship.
source = ManyToManySourceModel.objects.create()
target = ManyToManyTargetModel.objects.create()
source.targets.add(target)
url = reverse(
'nested-m2m-targets-detail',
kwargs={'source_pk': target.pk, 'pk': source.pk})
response = self.client.get(url)
self.assertEqual(
response.status_code,
status.HTTP_200_OK,
msg=response.data,
)
self.assertEqual(response.data.get('id'), target.pk)
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