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test_default_drf_serializers.py
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test_default_drf_serializers.py
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import json
import pytest
from django.urls import reverse
from rest_framework import viewsets
from rest_framework.serializers import ModelSerializer, SerializerMethodField
from rest_framework_json_api.renderers import JSONRenderer
from example.models import Blog, Comment, Entry
# serializers
class RelatedModelSerializer(ModelSerializer):
class Meta:
model = Comment
fields = ('id',)
class DummyTestSerializer(ModelSerializer):
"""
This serializer is a simple compound document serializer which includes only
a single embedded relation
"""
related_models = RelatedModelSerializer(source='comments', many=True, read_only=True)
json_field = SerializerMethodField()
def get_json_field(self, entry):
return {'JsonKey': 'JsonValue'}
class Meta:
model = Entry
fields = ('related_models', 'json_field')
# views
class DummyTestViewSet(viewsets.ModelViewSet):
queryset = Entry.objects.all()
serializer_class = DummyTestSerializer
def render_dummy_test_serialized_view(view_class):
serializer = DummyTestSerializer(instance=Entry())
renderer = JSONRenderer()
return renderer.render(
serializer.data,
renderer_context={'view': view_class()})
# tests
def test_simple_reverse_relation_included_renderer():
"""
Test renderer when a single reverse fk relation is passed.
"""
rendered = render_dummy_test_serialized_view(
DummyTestViewSet)
assert rendered
def test_render_format_field_names(settings):
"""Test that json field is kept untouched."""
settings.JSON_API_FORMAT_FIELD_NAMES = 'dasherize'
rendered = render_dummy_test_serialized_view(DummyTestViewSet)
result = json.loads(rendered.decode())
assert result['data']['attributes']['json-field'] == {'JsonKey': 'JsonValue'}
@pytest.mark.filterwarnings("ignore:`format_keys` function and `JSON_API_FORMAT_KEYS`")
def test_render_format_keys(settings):
"""Test that json field value keys are formated."""
delattr(settings, 'JSON_API_FORMAT_FILED_NAMES')
settings.JSON_API_FORMAT_KEYS = 'dasherize'
rendered = render_dummy_test_serialized_view(DummyTestViewSet)
result = json.loads(rendered.decode())
assert result['data']['attributes']['json-field'] == {'json-key': 'JsonValue'}
@pytest.mark.django_db
def test_blog_create(client):
url = reverse('drf-entry-blog-list')
name = "Dummy Name"
request_data = {
'data': {
'attributes': {'name': name},
'type': 'blogs'
},
}
resp = client.post(url, request_data)
# look for created blog in database
blog = Blog.objects.filter(name=name)
# check if blog exists in database
assert blog.count() == 1
# get created blog from database
blog = blog.first()
expected = {
'data': {
'attributes': {'name': blog.name},
'id': '{}'.format(blog.id),
'links': {'self': 'http://testserver/blogs/{}'.format(blog.id)},
'meta': {'copyright': 2018},
'relationships': {'tags': {'data': []}},
'type': 'blogs'
},
'meta': {'apiDocs': '/docs/api/blogs'}
}
assert resp.status_code == 201
assert resp.json() == expected
@pytest.mark.django_db
def test_get_object_gives_correct_blog(client, blog, entry):
url = reverse('drf-entry-blog-detail', kwargs={'entry_pk': entry.id})
resp = client.get(url)
expected = {
'data': {
'attributes': {'name': blog.name},
'id': '{}'.format(blog.id),
'links': {'self': 'http://testserver/blogs/{}'.format(blog.id)},
'meta': {'copyright': 2018},
'relationships': {'tags': {'data': []}},
'type': 'blogs'
},
'meta': {'apiDocs': '/docs/api/blogs'}
}
got = resp.json()
assert got == expected
@pytest.mark.django_db
def test_get_object_patches_correct_blog(client, blog, entry):
url = reverse('drf-entry-blog-detail', kwargs={'entry_pk': entry.id})
new_name = blog.name + " update"
assert not new_name == blog.name
request_data = {
'data': {
'attributes': {'name': new_name},
'id': '{}'.format(blog.id),
'links': {'self': 'http://testserver/blogs/{}'.format(blog.id)},
'meta': {'copyright': 2018},
'relationships': {'tags': {'data': []}},
'type': 'blogs'
},
'meta': {'apiDocs': '/docs/api/blogs'}
}
resp = client.patch(url, data=request_data)
assert resp.status_code == 200
expected = {
'data': {
'attributes': {'name': new_name},
'id': '{}'.format(blog.id),
'links': {'self': 'http://testserver/blogs/{}'.format(blog.id)},
'meta': {'copyright': 2018},
'relationships': {'tags': {'data': []}},
'type': 'blogs'
},
'meta': {'apiDocs': '/docs/api/blogs'}
}
got = resp.json()
assert got == expected
@pytest.mark.django_db
def test_get_object_deletes_correct_blog(client, entry):
url = reverse('drf-entry-blog-detail', kwargs={'entry_pk': entry.id})
resp = client.delete(url)
assert resp.status_code == 204
@pytest.mark.django_db
def test_get_entry_list_with_blogs(client, entry):
url = reverse('drf-entry-suggested', kwargs={'entry_pk': entry.id})
resp = client.get(url)
got = resp.json()
expected = {
'links': {
'first': 'http://testserver/drf-entries/1/suggested/?page%5Bnumber%5D=1',
'last': 'http://testserver/drf-entries/1/suggested/?page%5Bnumber%5D=1',
'next': None,
'prev': None
},
'data': [
{
'type': 'entries',
'id': '1',
'attributes': {},
'relationships': {
'tags': {
'data': []
}
},
'links': {
'self': 'http://testserver/drf-blogs/1'
}
}
],
'meta': {
'pagination': {
'page': 1,
'pages': 1,
'count': 1
}
}
}
assert resp.status_code == 200
assert got == expected