def test_create(self):
data = [
{
'name': 'a',
'slug': 'a',
'resourcetype': 'BlogBase'
},
{
'name': 'b',
'slug': 'b',
'info': 'info',
'resourcetype': 'BlogOne'
},
{
'name': 'c',
'slug': 'c',
'resourcetype': 'BlogTwo'
},
]
serializer = BlogPolymorphicSerializer(data=data, many=True)
assert serializer.is_valid()
instances = serializer.save()
assert len(instances) == 3
assert [item.name for item in instances] == ['a', 'b', 'c']
assert BlogBase.objects.count() == 3
assert BlogBase.objects.instance_of(BlogOne).count() == 1
assert BlogBase.objects.instance_of(BlogTwo).count() == 1
assert serializer.data == data
def test_deserialize_with_invalid_resourcetype(self):
data = {
'name': 'blog',
'resourcetype': 'Invalid',
}
serializers = BlogPolymorphicSerializer(data=data)
assert not serializers.is_valid()
def test_serialize(self):
instance = BlogBase.objects.create(name='blog', slug='blog')
serializer = BlogPolymorphicSerializer(instance)
assert serializer.data == {
'name': 'blog',
'slug': 'blog',
'resourcetype': 'BlogBase',
}
def test_deserialize(self):
data = {
'name': 'blog',
'slug': 'blog',
'resourcetype': 'BlogBase',
}
serializers = BlogPolymorphicSerializer(data=data)
assert serializers.is_valid()
assert serializers.data == data
def test_update(self):
instance = BlogBase.objects.create(name='blog', slug='blog')
data = {'name': 'new-blog', 'slug': 'blog', 'resourcetype': 'BlogBase'}
serializer = BlogPolymorphicSerializer(instance, data=data)
assert serializer.is_valid()
serializer.save()
assert instance.name == 'new-blog'
assert instance.slug == 'blog'
def test_object_validators_are_applied(self):
data = {
'name': 'test-blog',
'slug': 'test-blog-slug',
'info': 'test-blog-info',
'about': 'test-blog-about',
'resourcetype': 'BlogThree'
}
serializer = BlogPolymorphicSerializer(data=data)
assert serializer.is_valid()
serializer.save()
data['slug'] = 'test-blog-slug-new'
duplicate = BlogPolymorphicSerializer(data=data)
assert not duplicate.is_valid()
assert 'non_field_errors' in duplicate.errors
err = duplicate.errors['non_field_errors']
assert err == ['The fields info, about must make a unique set.']
def test_polymorphic_renderer(self):
renderer = PolymorphicRenderer()
setattr(renderer, 'accepted_media_type', 'text/html')
poly_serializer = BlogPolymorphicSerializer()
form = renderer.render_form_for_serializer(poly_serializer)
assert isinstance(form, tuple)
models_found = {f[0]: f[1] for f in form}
assert 'BlogBase' in models_found
assert 'BlogOne' in models_found
assert 'BlogTwo' in models_found
assert 'name="info"' not in models_found['BlogBase']
assert 'name="info"' in models_found['BlogOne']
def test_partial_update(self):
instance = BlogBase.objects.create(name='blog', slug='blog')
data = {
'name': 'new-blog',
}
serializer = BlogPolymorphicSerializer(instance,
data=data,
partial=True)
assert serializer.is_valid()
serializer.save()
assert instance.name == 'new-blog'
assert instance.slug == 'blog'
def test_polymorphic_renderer_non_polymorphic_serializer(self):
data = {
'name': 'test-blog',
'slug': 'test-blog-slug',
'info': 'test-blog-info'
}
blog = BlogOne.objects.create(**data)
renderer = PolymorphicRenderer()
setattr(renderer, 'accepted_media_type', 'text/html')
non_poly_serializer = BlogOneSerializer(blog)
non_poly_form = renderer.render_form_for_serializer(non_poly_serializer)
poly_instance_serializer = BlogPolymorphicSerializer(blog)
poly_instance_form = renderer.render_form_for_serializer(poly_instance_serializer)
assert not isinstance(non_poly_form, tuple)
assert not isinstance(poly_instance_form, tuple)
for k, v in data.items():
assert 'name="{}"'.format(k) in poly_instance_form
assert 'name="{}"'.format(k) in non_poly_form
assert 'value="{}"'.format(v) in poly_instance_form
assert 'value="{}"'.format(v) in non_poly_form
def test_each_serializer_has_context(self, mocker):
context = mocker.MagicMock()
serializer = BlogPolymorphicSerializer(context=context)
for inner_serializer in serializer.model_serializer_mapping.values():
assert inner_serializer.context == context