django-rest-framework/tests/utils.py
2024-01-05 14:29:40 +01:00

78 lines
2.2 KiB
Python

from operator import attrgetter
from django.core.exceptions import ObjectDoesNotExist
from django.urls import NoReverseMatch
class MockObject:
def __init__(self, **kwargs):
self._kwargs = kwargs
for key, val in kwargs.items():
setattr(self, key, val)
def __str__(self):
kwargs_str = ', '.join([
'%s=%s' % (key, value)
for key, value in sorted(self._kwargs.items())
])
return '<MockObject %s>' % kwargs_str
class MockQueryset:
def __init__(self, iterable):
self.items = iterable
def __getitem__(self, val):
return self.items[val]
def get(self, **lookup):
result = self.filter(**lookup).all()
if len(result) > 0:
return result[0]
raise ObjectDoesNotExist()
def all(self):
return list(self.items)
def filter(self, **lookup):
return MockQueryset([
item
for item in self.items
if all([
attrgetter(key.replace("__in", "").replace('__', '.'))(item) in value
if key.endswith("__in")
else attrgetter(key.replace('__', '.'))(item) == value
for key, value in lookup.items()
])
])
def annotate(self, **kwargs):
for key, value in kwargs.items():
for item in self.items:
setattr(item, key, attrgetter(value.name.replace('__', '.'))(item))
return self
class BadType:
"""
When used as a lookup with a `MockQueryset`, these objects
will raise a `TypeError`, as occurs in Django when making
queryset lookups with an incorrect type for the lookup value.
"""
def __eq__(self):
raise TypeError()
def mock_reverse(view_name, args=None, kwargs=None, request=None, format=None):
args = args or []
kwargs = kwargs or {}
value = (args + list(kwargs.values()) + ['-'])[0]
prefix = 'http://example.org' if request else ''
suffix = ('.' + format) if (format is not None) else ''
return '%s/%s/%s%s/' % (prefix, view_name, value, suffix)
def fail_reverse(view_name, args=None, kwargs=None, request=None, format=None):
raise NoReverseMatch()