rename all test files so that they are prefixed by test_{orginal_filename}.py
This commit is contained in:
Bastien Gérard
655
tests/document/test_inheritance.py
Normal file
655
tests/document/test_inheritance.py
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@@ -0,0 +1,655 @@
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# -*- coding: utf-8 -*-
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import unittest
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import warnings
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from six import iteritems
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from mongoengine import (
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BooleanField,
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Document,
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EmbeddedDocument,
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EmbeddedDocumentField,
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GenericReferenceField,
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IntField,
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ReferenceField,
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StringField,
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)
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from mongoengine.pymongo_support import list_collection_names
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from tests.fixtures import Base
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from tests.utils import MongoDBTestCase
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class TestInheritance(MongoDBTestCase):
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def tearDown(self):
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for collection in list_collection_names(self.db):
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self.db.drop_collection(collection)
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def test_constructor_cls(self):
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# Ensures _cls is properly set during construction
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# and when object gets reloaded (prevent regression of #1950)
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class EmbedData(EmbeddedDocument):
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data = StringField()
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meta = {"allow_inheritance": True}
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class DataDoc(Document):
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name = StringField()
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embed = EmbeddedDocumentField(EmbedData)
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meta = {"allow_inheritance": True}
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test_doc = DataDoc(name="test", embed=EmbedData(data="data"))
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self.assertEqual(test_doc._cls, "DataDoc")
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self.assertEqual(test_doc.embed._cls, "EmbedData")
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test_doc.save()
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saved_doc = DataDoc.objects.with_id(test_doc.id)
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self.assertEqual(test_doc._cls, saved_doc._cls)
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self.assertEqual(test_doc.embed._cls, saved_doc.embed._cls)
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test_doc.delete()
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def test_superclasses(self):
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"""Ensure that the correct list of superclasses is assembled.
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"""
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class Animal(Document):
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meta = {"allow_inheritance": True}
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class Fish(Animal):
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pass
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class Guppy(Fish):
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pass
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class Mammal(Animal):
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pass
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class Dog(Mammal):
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pass
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class Human(Mammal):
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pass
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self.assertEqual(Animal._superclasses, ())
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self.assertEqual(Fish._superclasses, ("Animal",))
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self.assertEqual(Guppy._superclasses, ("Animal", "Animal.Fish"))
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self.assertEqual(Mammal._superclasses, ("Animal",))
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self.assertEqual(Dog._superclasses, ("Animal", "Animal.Mammal"))
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self.assertEqual(Human._superclasses, ("Animal", "Animal.Mammal"))
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def test_external_superclasses(self):
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"""Ensure that the correct list of super classes is assembled when
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importing part of the model.
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"""
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class Animal(Base):
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pass
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class Fish(Animal):
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pass
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class Guppy(Fish):
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pass
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class Mammal(Animal):
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pass
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class Dog(Mammal):
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pass
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class Human(Mammal):
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pass
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self.assertEqual(Animal._superclasses, ("Base",))
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self.assertEqual(Fish._superclasses, ("Base", "Base.Animal"))
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self.assertEqual(
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Guppy._superclasses, ("Base", "Base.Animal", "Base.Animal.Fish")
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)
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self.assertEqual(Mammal._superclasses, ("Base", "Base.Animal"))
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self.assertEqual(
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Dog._superclasses, ("Base", "Base.Animal", "Base.Animal.Mammal")
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)
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self.assertEqual(
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Human._superclasses, ("Base", "Base.Animal", "Base.Animal.Mammal")
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)
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def test_subclasses(self):
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"""Ensure that the correct list of _subclasses (subclasses) is
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assembled.
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"""
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class Animal(Document):
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meta = {"allow_inheritance": True}
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class Fish(Animal):
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pass
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class Guppy(Fish):
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pass
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class Mammal(Animal):
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pass
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class Dog(Mammal):
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pass
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class Human(Mammal):
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pass
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self.assertEqual(
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Animal._subclasses,
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(
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"Animal",
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"Animal.Fish",
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"Animal.Fish.Guppy",
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"Animal.Mammal",
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"Animal.Mammal.Dog",
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"Animal.Mammal.Human",
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),
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)
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self.assertEqual(Fish._subclasses, ("Animal.Fish", "Animal.Fish.Guppy"))
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self.assertEqual(Guppy._subclasses, ("Animal.Fish.Guppy",))
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self.assertEqual(
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Mammal._subclasses,
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("Animal.Mammal", "Animal.Mammal.Dog", "Animal.Mammal.Human"),
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)
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self.assertEqual(Human._subclasses, ("Animal.Mammal.Human",))
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def test_external_subclasses(self):
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"""Ensure that the correct list of _subclasses (subclasses) is
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assembled when importing part of the model.
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"""
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class Animal(Base):
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pass
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class Fish(Animal):
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pass
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class Guppy(Fish):
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pass
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class Mammal(Animal):
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pass
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class Dog(Mammal):
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pass
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class Human(Mammal):
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pass
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self.assertEqual(
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Animal._subclasses,
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(
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"Base.Animal",
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"Base.Animal.Fish",
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"Base.Animal.Fish.Guppy",
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"Base.Animal.Mammal",
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"Base.Animal.Mammal.Dog",
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"Base.Animal.Mammal.Human",
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),
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)
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self.assertEqual(
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Fish._subclasses, ("Base.Animal.Fish", "Base.Animal.Fish.Guppy")
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)
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self.assertEqual(Guppy._subclasses, ("Base.Animal.Fish.Guppy",))
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self.assertEqual(
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Mammal._subclasses,
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(
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"Base.Animal.Mammal",
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"Base.Animal.Mammal.Dog",
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"Base.Animal.Mammal.Human",
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),
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)
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self.assertEqual(Human._subclasses, ("Base.Animal.Mammal.Human",))
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def test_dynamic_declarations(self):
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"""Test that declaring an extra class updates meta data"""
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class Animal(Document):
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meta = {"allow_inheritance": True}
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self.assertEqual(Animal._superclasses, ())
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self.assertEqual(Animal._subclasses, ("Animal",))
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# Test dynamically adding a class changes the meta data
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class Fish(Animal):
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pass
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self.assertEqual(Animal._superclasses, ())
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self.assertEqual(Animal._subclasses, ("Animal", "Animal.Fish"))
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self.assertEqual(Fish._superclasses, ("Animal",))
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self.assertEqual(Fish._subclasses, ("Animal.Fish",))
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# Test dynamically adding an inherited class changes the meta data
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class Pike(Fish):
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pass
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self.assertEqual(Animal._superclasses, ())
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self.assertEqual(
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Animal._subclasses, ("Animal", "Animal.Fish", "Animal.Fish.Pike")
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)
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self.assertEqual(Fish._superclasses, ("Animal",))
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self.assertEqual(Fish._subclasses, ("Animal.Fish", "Animal.Fish.Pike"))
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self.assertEqual(Pike._superclasses, ("Animal", "Animal.Fish"))
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self.assertEqual(Pike._subclasses, ("Animal.Fish.Pike",))
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def test_inheritance_meta_data(self):
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"""Ensure that document may inherit fields from a superclass document.
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"""
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class Person(Document):
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name = StringField()
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age = IntField()
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meta = {"allow_inheritance": True}
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class Employee(Person):
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salary = IntField()
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self.assertEqual(
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["_cls", "age", "id", "name", "salary"], sorted(Employee._fields.keys())
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)
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self.assertEqual(Employee._get_collection_name(), Person._get_collection_name())
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def test_inheritance_to_mongo_keys(self):
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"""Ensure that document may inherit fields from a superclass document.
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"""
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class Person(Document):
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name = StringField()
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age = IntField()
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meta = {"allow_inheritance": True}
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class Employee(Person):
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salary = IntField()
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self.assertEqual(
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["_cls", "age", "id", "name", "salary"], sorted(Employee._fields.keys())
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)
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self.assertEqual(
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Person(name="Bob", age=35).to_mongo().keys(), ["_cls", "name", "age"]
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)
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self.assertEqual(
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Employee(name="Bob", age=35, salary=0).to_mongo().keys(),
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["_cls", "name", "age", "salary"],
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)
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self.assertEqual(Employee._get_collection_name(), Person._get_collection_name())
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def test_indexes_and_multiple_inheritance(self):
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""" Ensure that all of the indexes are created for a document with
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multiple inheritance.
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"""
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class A(Document):
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a = StringField()
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meta = {"allow_inheritance": True, "indexes": ["a"]}
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class B(Document):
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b = StringField()
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meta = {"allow_inheritance": True, "indexes": ["b"]}
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class C(A, B):
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pass
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A.drop_collection()
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B.drop_collection()
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C.drop_collection()
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C.ensure_indexes()
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self.assertEqual(
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sorted(
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[idx["key"] for idx in C._get_collection().index_information().values()]
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),
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sorted(
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[[(u"_cls", 1), (u"b", 1)], [(u"_id", 1)], [(u"_cls", 1), (u"a", 1)]]
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),
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)
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def test_polymorphic_queries(self):
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"""Ensure that the correct subclasses are returned from a query
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"""
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class Animal(Document):
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meta = {"allow_inheritance": True}
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class Fish(Animal):
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pass
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class Mammal(Animal):
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pass
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class Dog(Mammal):
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pass
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class Human(Mammal):
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pass
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Animal.drop_collection()
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Animal().save()
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Fish().save()
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Mammal().save()
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Dog().save()
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Human().save()
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classes = [obj.__class__ for obj in Animal.objects]
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self.assertEqual(classes, [Animal, Fish, Mammal, Dog, Human])
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classes = [obj.__class__ for obj in Mammal.objects]
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self.assertEqual(classes, [Mammal, Dog, Human])
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classes = [obj.__class__ for obj in Human.objects]
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self.assertEqual(classes, [Human])
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def test_allow_inheritance(self):
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"""Ensure that inheritance is disabled by default on simple
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classes and that _cls will not be used.
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"""
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class Animal(Document):
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name = StringField()
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# can't inherit because Animal didn't explicitly allow inheritance
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with self.assertRaises(ValueError) as cm:
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class Dog(Animal):
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pass
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self.assertIn("Document Animal may not be subclassed", str(cm.exception))
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# Check that _cls etc aren't present on simple documents
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dog = Animal(name="dog").save()
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self.assertEqual(dog.to_mongo().keys(), ["_id", "name"])
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collection = self.db[Animal._get_collection_name()]
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obj = collection.find_one()
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self.assertNotIn("_cls", obj)
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def test_cant_turn_off_inheritance_on_subclass(self):
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"""Ensure if inheritance is on in a subclass you cant turn it off.
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"""
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class Animal(Document):
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name = StringField()
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meta = {"allow_inheritance": True}
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with self.assertRaises(ValueError) as cm:
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class Mammal(Animal):
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meta = {"allow_inheritance": False}
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self.assertEqual(
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str(cm.exception),
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'Only direct subclasses of Document may set "allow_inheritance" to False',
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)
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def test_allow_inheritance_abstract_document(self):
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"""Ensure that abstract documents can set inheritance rules and that
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_cls will not be used.
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"""
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class FinalDocument(Document):
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meta = {"abstract": True, "allow_inheritance": False}
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class Animal(FinalDocument):
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name = StringField()
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with self.assertRaises(ValueError):
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class Mammal(Animal):
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pass
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# Check that _cls isn't present in simple documents
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doc = Animal(name="dog")
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self.assertNotIn("_cls", doc.to_mongo())
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def test_using_abstract_class_in_reference_field(self):
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# Ensures no regression of #1920
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class AbstractHuman(Document):
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meta = {"abstract": True}
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class Dad(AbstractHuman):
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name = StringField()
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class Home(Document):
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dad = ReferenceField(AbstractHuman) # Referencing the abstract class
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address = StringField()
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dad = Dad(name="5").save()
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Home(dad=dad, address="street").save()
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home = Home.objects.first()
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home.address = "garbage"
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home.save() # Was failing with ValidationError
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def test_abstract_class_referencing_self(self):
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# Ensures no regression of #1920
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class Human(Document):
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meta = {"abstract": True}
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creator = ReferenceField("self", dbref=True)
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class User(Human):
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name = StringField()
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user = User(name="John").save()
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user2 = User(name="Foo", creator=user).save()
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user2 = User.objects.with_id(user2.id)
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user2.name = "Bar"
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user2.save() # Was failing with ValidationError
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def test_abstract_handle_ids_in_metaclass_properly(self):
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class City(Document):
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continent = StringField()
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meta = {"abstract": True, "allow_inheritance": False}
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class EuropeanCity(City):
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name = StringField()
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berlin = EuropeanCity(name="Berlin", continent="Europe")
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self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._fields_ordered), 3)
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self.assertEqual(berlin._fields_ordered[0], "id")
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def test_auto_id_not_set_if_specific_in_parent_class(self):
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class City(Document):
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continent = StringField()
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city_id = IntField(primary_key=True)
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meta = {"abstract": True, "allow_inheritance": False}
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class EuropeanCity(City):
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name = StringField()
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berlin = EuropeanCity(name="Berlin", continent="Europe")
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self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._fields_ordered), 3)
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self.assertEqual(berlin._fields_ordered[0], "city_id")
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def test_auto_id_vs_non_pk_id_field(self):
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class City(Document):
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continent = StringField()
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id = IntField()
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meta = {"abstract": True, "allow_inheritance": False}
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class EuropeanCity(City):
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name = StringField()
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berlin = EuropeanCity(name="Berlin", continent="Europe")
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self.assertEqual(len(berlin._db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._reverse_db_field_map), len(berlin._fields_ordered))
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self.assertEqual(len(berlin._fields_ordered), 4)
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self.assertEqual(berlin._fields_ordered[0], "auto_id_0")
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berlin.save()
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self.assertEqual(berlin.pk, berlin.auto_id_0)
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def test_abstract_document_creation_does_not_fail(self):
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class City(Document):
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continent = StringField()
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meta = {"abstract": True, "allow_inheritance": False}
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city = City(continent="asia")
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self.assertEqual(None, city.pk)
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# TODO: expected error? Shouldn't we create a new error type?
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with self.assertRaises(KeyError):
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setattr(city, "pk", 1)
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|
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def test_allow_inheritance_embedded_document(self):
|
||||
"""Ensure embedded documents respect inheritance."""
|
||||
|
||||
class Comment(EmbeddedDocument):
|
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content = StringField()
|
||||
|
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with self.assertRaises(ValueError):
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||||
|
||||
class SpecialComment(Comment):
|
||||
pass
|
||||
|
||||
doc = Comment(content="test")
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||||
self.assertNotIn("_cls", doc.to_mongo())
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||||
|
||||
class Comment(EmbeddedDocument):
|
||||
content = StringField()
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||||
meta = {"allow_inheritance": True}
|
||||
|
||||
doc = Comment(content="test")
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||||
self.assertIn("_cls", doc.to_mongo())
|
||||
|
||||
def test_document_inheritance(self):
|
||||
"""Ensure mutliple inheritance of abstract documents
|
||||
"""
|
||||
|
||||
class DateCreatedDocument(Document):
|
||||
meta = {"allow_inheritance": True, "abstract": True}
|
||||
|
||||
class DateUpdatedDocument(Document):
|
||||
meta = {"allow_inheritance": True, "abstract": True}
|
||||
|
||||
try:
|
||||
|
||||
class MyDocument(DateCreatedDocument, DateUpdatedDocument):
|
||||
pass
|
||||
|
||||
except Exception:
|
||||
self.assertTrue(False, "Couldn't create MyDocument class")
|
||||
|
||||
def test_abstract_documents(self):
|
||||
"""Ensure that a document superclass can be marked as abstract
|
||||
thereby not using it as the name for the collection."""
|
||||
|
||||
defaults = {
|
||||
"index_background": True,
|
||||
"index_drop_dups": True,
|
||||
"index_opts": {"hello": "world"},
|
||||
"allow_inheritance": True,
|
||||
"queryset_class": "QuerySet",
|
||||
"db_alias": "myDB",
|
||||
"shard_key": ("hello", "world"),
|
||||
}
|
||||
|
||||
meta_settings = {"abstract": True}
|
||||
meta_settings.update(defaults)
|
||||
|
||||
class Animal(Document):
|
||||
name = StringField()
|
||||
meta = meta_settings
|
||||
|
||||
class Fish(Animal):
|
||||
pass
|
||||
|
||||
class Guppy(Fish):
|
||||
pass
|
||||
|
||||
class Mammal(Animal):
|
||||
meta = {"abstract": True}
|
||||
|
||||
class Human(Mammal):
|
||||
pass
|
||||
|
||||
for k, v in iteritems(defaults):
|
||||
for cls in [Animal, Fish, Guppy]:
|
||||
self.assertEqual(cls._meta[k], v)
|
||||
|
||||
self.assertNotIn("collection", Animal._meta)
|
||||
self.assertNotIn("collection", Mammal._meta)
|
||||
|
||||
self.assertEqual(Animal._get_collection_name(), None)
|
||||
self.assertEqual(Mammal._get_collection_name(), None)
|
||||
|
||||
self.assertEqual(Fish._get_collection_name(), "fish")
|
||||
self.assertEqual(Guppy._get_collection_name(), "fish")
|
||||
self.assertEqual(Human._get_collection_name(), "human")
|
||||
|
||||
# ensure that a subclass of a non-abstract class can't be abstract
|
||||
with self.assertRaises(ValueError):
|
||||
|
||||
class EvilHuman(Human):
|
||||
evil = BooleanField(default=True)
|
||||
meta = {"abstract": True}
|
||||
|
||||
def test_abstract_embedded_documents(self):
|
||||
# 789: EmbeddedDocument shouldn't inherit abstract
|
||||
class A(EmbeddedDocument):
|
||||
meta = {"abstract": True}
|
||||
|
||||
class B(A):
|
||||
pass
|
||||
|
||||
self.assertFalse(B._meta["abstract"])
|
||||
|
||||
def test_inherited_collections(self):
|
||||
"""Ensure that subclassed documents don't override parents'
|
||||
collections
|
||||
"""
|
||||
|
||||
class Drink(Document):
|
||||
name = StringField()
|
||||
meta = {"allow_inheritance": True}
|
||||
|
||||
class Drinker(Document):
|
||||
drink = GenericReferenceField()
|
||||
|
||||
try:
|
||||
warnings.simplefilter("error")
|
||||
|
||||
class AcloholicDrink(Drink):
|
||||
meta = {"collection": "booze"}
|
||||
|
||||
except SyntaxWarning:
|
||||
warnings.simplefilter("ignore")
|
||||
|
||||
class AlcoholicDrink(Drink):
|
||||
meta = {"collection": "booze"}
|
||||
|
||||
else:
|
||||
raise AssertionError("SyntaxWarning should be triggered")
|
||||
|
||||
warnings.resetwarnings()
|
||||
|
||||
Drink.drop_collection()
|
||||
AlcoholicDrink.drop_collection()
|
||||
Drinker.drop_collection()
|
||||
|
||||
red_bull = Drink(name="Red Bull")
|
||||
red_bull.save()
|
||||
|
||||
programmer = Drinker(drink=red_bull)
|
||||
programmer.save()
|
||||
|
||||
beer = AlcoholicDrink(name="Beer")
|
||||
beer.save()
|
||||
real_person = Drinker(drink=beer)
|
||||
real_person.save()
|
||||
|
||||
self.assertEqual(Drinker.objects[0].drink.name, red_bull.name)
|
||||
self.assertEqual(Drinker.objects[1].drink.name, beer.name)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
Reference in New Issue
Block a user