350 lines
11 KiB
Python
350 lines
11 KiB
Python
import unittest
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from mongoengine import *
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from mongoengine.connection import get_db
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from mongoengine.pymongo_support import list_collection_names
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from mongoengine.queryset import NULLIFY, PULL
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class TestClassMethods(unittest.TestCase):
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def setUp(self):
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connect(db="mongoenginetest")
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self.db = get_db()
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class Person(Document):
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name = StringField()
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age = IntField()
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non_field = True
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meta = {"allow_inheritance": True}
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self.Person = Person
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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_definition(self):
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"""Ensure that document may be defined using fields."""
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assert ["_cls", "age", "id", "name"] == sorted(self.Person._fields.keys())
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assert ["IntField", "ObjectIdField", "StringField", "StringField"] == sorted(
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x.__class__.__name__ for x in self.Person._fields.values()
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)
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def test_get_db(self):
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"""Ensure that get_db returns the expected db."""
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db = self.Person._get_db()
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assert self.db == db
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def test_get_collection_name(self):
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"""Ensure that get_collection_name returns the expected collection
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name.
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"""
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collection_name = "person"
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assert collection_name == self.Person._get_collection_name()
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def test_get_collection(self):
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"""Ensure that get_collection returns the expected collection."""
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collection_name = "person"
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collection = self.Person._get_collection()
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assert self.db[collection_name] == collection
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def test_drop_collection(self):
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"""Ensure that the collection may be dropped from the database."""
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collection_name = "person"
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self.Person(name="Test").save()
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assert collection_name in list_collection_names(self.db)
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self.Person.drop_collection()
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assert collection_name not in list_collection_names(self.db)
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def test_register_delete_rule(self):
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"""Ensure that register delete rule adds a delete rule to the document
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meta.
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"""
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class Job(Document):
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employee = ReferenceField(self.Person)
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assert self.Person._meta.get("delete_rules") is None
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self.Person.register_delete_rule(Job, "employee", NULLIFY)
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assert self.Person._meta["delete_rules"] == {(Job, "employee"): NULLIFY}
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def test_compare_indexes(self):
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"""Ensure that the indexes are properly created and that
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compare_indexes identifies the missing/extra indexes
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"""
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class BlogPost(Document):
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author = StringField()
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title = StringField()
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description = StringField()
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tags = StringField()
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meta = {"indexes": [("author", "title")]}
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BlogPost.drop_collection()
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BlogPost.ensure_indexes()
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assert BlogPost.compare_indexes() == {"missing": [], "extra": []}
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BlogPost.ensure_index(["author", "description"])
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assert BlogPost.compare_indexes() == {
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"missing": [],
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"extra": [[("author", 1), ("description", 1)]],
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}
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BlogPost._get_collection().drop_index("author_1_description_1")
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assert BlogPost.compare_indexes() == {"missing": [], "extra": []}
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BlogPost._get_collection().drop_index("author_1_title_1")
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assert BlogPost.compare_indexes() == {
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"missing": [[("author", 1), ("title", 1)]],
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"extra": [],
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}
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def test_compare_indexes_inheritance(self):
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"""Ensure that the indexes are properly created and that
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compare_indexes identifies the missing/extra indexes for subclassed
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documents (_cls included)
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"""
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class BlogPost(Document):
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author = StringField()
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title = StringField()
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description = StringField()
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meta = {"allow_inheritance": True}
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class BlogPostWithTags(BlogPost):
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tags = StringField()
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tag_list = ListField(StringField())
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meta = {"indexes": [("author", "tags")]}
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BlogPost.drop_collection()
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BlogPost.ensure_indexes()
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BlogPostWithTags.ensure_indexes()
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assert BlogPost.compare_indexes() == {"missing": [], "extra": []}
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BlogPostWithTags.ensure_index(["author", "tag_list"])
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assert BlogPost.compare_indexes() == {
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"missing": [],
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"extra": [[("_cls", 1), ("author", 1), ("tag_list", 1)]],
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}
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BlogPostWithTags._get_collection().drop_index("_cls_1_author_1_tag_list_1")
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assert BlogPost.compare_indexes() == {"missing": [], "extra": []}
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BlogPostWithTags._get_collection().drop_index("_cls_1_author_1_tags_1")
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assert BlogPost.compare_indexes() == {
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"missing": [[("_cls", 1), ("author", 1), ("tags", 1)]],
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"extra": [],
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}
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def test_compare_indexes_multiple_subclasses(self):
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"""Ensure that compare_indexes behaves correctly if called from a
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class, which base class has multiple subclasses
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"""
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class BlogPost(Document):
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author = StringField()
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title = StringField()
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description = StringField()
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meta = {"allow_inheritance": True}
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class BlogPostWithTags(BlogPost):
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tags = StringField()
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tag_list = ListField(StringField())
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meta = {"indexes": [("author", "tags")]}
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class BlogPostWithCustomField(BlogPost):
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custom = DictField()
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meta = {"indexes": [("author", "custom")]}
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BlogPost.ensure_indexes()
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BlogPostWithTags.ensure_indexes()
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BlogPostWithCustomField.ensure_indexes()
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assert BlogPost.compare_indexes() == {"missing": [], "extra": []}
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assert BlogPostWithTags.compare_indexes() == {"missing": [], "extra": []}
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assert BlogPostWithCustomField.compare_indexes() == {"missing": [], "extra": []}
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def test_compare_indexes_for_text_indexes(self):
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"""Ensure that compare_indexes behaves correctly for text indexes"""
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class Doc(Document):
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a = StringField()
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b = StringField()
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meta = {
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"indexes": [
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{
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"fields": ["$a", "$b"],
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"default_language": "english",
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"weights": {"a": 10, "b": 2},
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}
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]
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}
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Doc.drop_collection()
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Doc.ensure_indexes()
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actual = Doc.compare_indexes()
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expected = {"missing": [], "extra": []}
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assert actual == expected
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def test_list_indexes_inheritance(self):
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"""ensure that all of the indexes are listed regardless of the super-
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or sub-class that we call it from
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"""
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class BlogPost(Document):
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author = StringField()
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title = StringField()
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description = StringField()
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meta = {"allow_inheritance": True}
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class BlogPostWithTags(BlogPost):
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tags = StringField()
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meta = {"indexes": [("author", "tags")]}
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class BlogPostWithTagsAndExtraText(BlogPostWithTags):
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extra_text = StringField()
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meta = {"indexes": [("author", "tags", "extra_text")]}
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BlogPost.drop_collection()
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BlogPost.ensure_indexes()
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BlogPostWithTags.ensure_indexes()
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BlogPostWithTagsAndExtraText.ensure_indexes()
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assert BlogPost.list_indexes() == BlogPostWithTags.list_indexes()
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assert BlogPost.list_indexes() == BlogPostWithTagsAndExtraText.list_indexes()
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assert BlogPost.list_indexes() == [
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[("_cls", 1), ("author", 1), ("tags", 1)],
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[("_cls", 1), ("author", 1), ("tags", 1), ("extra_text", 1)],
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[("_id", 1)],
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[("_cls", 1)],
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]
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def test_register_delete_rule_inherited(self):
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class Vaccine(Document):
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name = StringField(required=True)
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meta = {"indexes": ["name"]}
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class Animal(Document):
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family = StringField(required=True)
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vaccine_made = ListField(
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ReferenceField("Vaccine", reverse_delete_rule=PULL)
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)
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meta = {"allow_inheritance": True, "indexes": ["family"]}
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class Cat(Animal):
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name = StringField(required=True)
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assert Vaccine._meta["delete_rules"][(Animal, "vaccine_made")] == PULL
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assert Vaccine._meta["delete_rules"][(Cat, "vaccine_made")] == PULL
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def test_collection_naming(self):
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"""Ensure that a collection with a specified name may be used."""
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class DefaultNamingTest(Document):
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pass
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assert "default_naming_test" == DefaultNamingTest._get_collection_name()
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class CustomNamingTest(Document):
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meta = {"collection": "pimp_my_collection"}
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assert "pimp_my_collection" == CustomNamingTest._get_collection_name()
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class DynamicNamingTest(Document):
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meta = {"collection": lambda c: "DYNAMO"}
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assert "DYNAMO" == DynamicNamingTest._get_collection_name()
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# Use Abstract class to handle backwards compatibility
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class BaseDocument(Document):
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meta = {"abstract": True, "collection": lambda c: c.__name__.lower()}
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class OldNamingConvention(BaseDocument):
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pass
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assert "oldnamingconvention" == OldNamingConvention._get_collection_name()
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class InheritedAbstractNamingTest(BaseDocument):
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meta = {"collection": "wibble"}
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assert "wibble" == InheritedAbstractNamingTest._get_collection_name()
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# Mixin tests
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class BaseMixin:
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meta = {"collection": lambda c: c.__name__.lower()}
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class OldMixinNamingConvention(Document, BaseMixin):
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pass
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assert (
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"oldmixinnamingconvention"
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== OldMixinNamingConvention._get_collection_name()
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)
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class BaseMixin:
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meta = {"collection": lambda c: c.__name__.lower()}
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class BaseDocument(Document, BaseMixin):
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meta = {"allow_inheritance": True}
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class MyDocument(BaseDocument):
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pass
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assert "basedocument" == MyDocument._get_collection_name()
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def test_custom_collection_name_operations(self):
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"""Ensure that a collection with a specified name is used as expected."""
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collection_name = "personCollTest"
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class Person(Document):
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name = StringField()
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meta = {"collection": collection_name}
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Person(name="Test User").save()
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assert collection_name in list_collection_names(self.db)
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user_obj = self.db[collection_name].find_one()
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assert user_obj["name"] == "Test User"
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user_obj = Person.objects[0]
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assert user_obj.name == "Test User"
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Person.drop_collection()
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assert collection_name not in list_collection_names(self.db)
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def test_collection_name_and_primary(self):
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"""Ensure that a collection with a specified name may be used."""
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class Person(Document):
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name = StringField(primary_key=True)
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meta = {"collection": "app"}
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Person(name="Test User").save()
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user_obj = Person.objects.first()
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assert user_obj.name == "Test User"
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Person.drop_collection()
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if __name__ == "__main__":
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unittest.main()
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