336 lines
9.5 KiB
Python
336 lines
9.5 KiB
Python
# Copyright 2015 DataStax, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from uuid import uuid4
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import random
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from datetime import date
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from operator import itemgetter
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from cassandra.cqlengine import CQLEngineException
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from tests.integration.cqlengine.base import BaseCassEngTestCase
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from cassandra.cqlengine.management import sync_table
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from cassandra.cqlengine.management import drop_table
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from cassandra.cqlengine.models import Model
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from cassandra.cqlengine import columns
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class TestModel(Model):
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id = columns.UUID(primary_key=True, default=lambda: uuid4())
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count = columns.Integer()
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text = columns.Text(required=False)
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a_bool = columns.Boolean(default=False)
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class TestModelIO(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(TestModelIO, cls).setUpClass()
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sync_table(TestModel)
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@classmethod
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def tearDownClass(cls):
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super(TestModelIO, cls).tearDownClass()
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drop_table(TestModel)
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def test_model_save_and_load(self):
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"""
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Tests that models can be saved and retrieved
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"""
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tm = TestModel.create(count=8, text='123456789')
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self.assertIsInstance(tm, TestModel)
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tm2 = TestModel.objects(id=tm.pk).first()
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self.assertIsInstance(tm2, TestModel)
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for cname in tm._columns.keys():
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self.assertEqual(getattr(tm, cname), getattr(tm2, cname))
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def test_model_read_as_dict(self):
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"""
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Tests that columns of an instance can be read as a dict.
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"""
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tm = TestModel.create(count=8, text='123456789', a_bool=True)
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column_dict = {
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'id': tm.id,
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'count': tm.count,
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'text': tm.text,
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'a_bool': tm.a_bool,
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}
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self.assertEqual(sorted(tm.keys()), sorted(column_dict.keys()))
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self.assertItemsEqual(tm.values(), column_dict.values())
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self.assertEqual(
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sorted(tm.items(), key=itemgetter(0)),
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sorted(column_dict.items(), key=itemgetter(0)))
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self.assertEqual(len(tm), len(column_dict))
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for column_id in column_dict.keys():
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self.assertEqual(tm[column_id], column_dict[column_id])
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tm['count'] = 6
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self.assertEqual(tm.count, 6)
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def test_model_updating_works_properly(self):
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"""
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Tests that subsequent saves after initial model creation work
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"""
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tm = TestModel.objects.create(count=8, text='123456789')
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tm.count = 100
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tm.a_bool = True
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tm.save()
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tm2 = TestModel.objects(id=tm.pk).first()
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self.assertEqual(tm.count, tm2.count)
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self.assertEqual(tm.a_bool, tm2.a_bool)
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def test_model_deleting_works_properly(self):
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"""
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Tests that an instance's delete method deletes the instance
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"""
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tm = TestModel.create(count=8, text='123456789')
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tm.delete()
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tm2 = TestModel.objects(id=tm.pk).first()
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self.assertIsNone(tm2)
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def test_column_deleting_works_properly(self):
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"""
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"""
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tm = TestModel.create(count=8, text='123456789')
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tm.text = None
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tm.save()
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tm2 = TestModel.objects(id=tm.pk).first()
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self.assertIsInstance(tm2, TestModel)
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assert tm2.text is None
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assert tm2._values['text'].previous_value is None
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def test_a_sensical_error_is_raised_if_you_try_to_create_a_table_twice(self):
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"""
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"""
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sync_table(TestModel)
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sync_table(TestModel)
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class TestMultiKeyModel(Model):
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partition = columns.Integer(primary_key=True)
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cluster = columns.Integer(primary_key=True)
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count = columns.Integer(required=False)
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text = columns.Text(required=False)
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class TestDeleting(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(TestDeleting, cls).setUpClass()
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drop_table(TestMultiKeyModel)
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sync_table(TestMultiKeyModel)
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@classmethod
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def tearDownClass(cls):
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super(TestDeleting, cls).tearDownClass()
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drop_table(TestMultiKeyModel)
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def test_deleting_only_deletes_one_object(self):
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partition = random.randint(0, 1000)
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for i in range(5):
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TestMultiKeyModel.create(partition=partition, cluster=i, count=i, text=str(i))
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assert TestMultiKeyModel.filter(partition=partition).count() == 5
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TestMultiKeyModel.get(partition=partition, cluster=0).delete()
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assert TestMultiKeyModel.filter(partition=partition).count() == 4
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TestMultiKeyModel.filter(partition=partition).delete()
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class TestUpdating(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(TestUpdating, cls).setUpClass()
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drop_table(TestMultiKeyModel)
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sync_table(TestMultiKeyModel)
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@classmethod
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def tearDownClass(cls):
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super(TestUpdating, cls).tearDownClass()
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drop_table(TestMultiKeyModel)
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def setUp(self):
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super(TestUpdating, self).setUp()
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self.instance = TestMultiKeyModel.create(
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partition=random.randint(0, 1000),
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cluster=random.randint(0, 1000),
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count=0,
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text='happy'
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)
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def test_vanilla_update(self):
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self.instance.count = 5
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self.instance.save()
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check = TestMultiKeyModel.get(partition=self.instance.partition, cluster=self.instance.cluster)
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assert check.count == 5
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assert check.text == 'happy'
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def test_deleting_only(self):
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self.instance.count = None
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self.instance.text = None
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self.instance.save()
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check = TestMultiKeyModel.get(partition=self.instance.partition, cluster=self.instance.cluster)
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assert check.count is None
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assert check.text is None
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def test_get_changed_columns(self):
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assert self.instance.get_changed_columns() == []
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self.instance.count = 1
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changes = self.instance.get_changed_columns()
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assert len(changes) == 1
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assert changes == ['count']
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self.instance.save()
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assert self.instance.get_changed_columns() == []
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class TestCanUpdate(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(TestCanUpdate, cls).setUpClass()
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drop_table(TestModel)
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sync_table(TestModel)
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@classmethod
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def tearDownClass(cls):
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super(TestCanUpdate, cls).tearDownClass()
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drop_table(TestModel)
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def test_success_case(self):
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tm = TestModel(count=8, text='123456789')
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# object hasn't been saved,
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# shouldn't be able to update
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assert not tm._is_persisted
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assert not tm._can_update()
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tm.save()
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# object has been saved,
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# should be able to update
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assert tm._is_persisted
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assert tm._can_update()
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tm.count = 200
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# primary keys haven't changed,
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# should still be able to update
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assert tm._can_update()
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tm.save()
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tm.id = uuid4()
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# primary keys have changed,
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# should not be able to update
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assert not tm._can_update()
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class IndexDefinitionModel(Model):
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key = columns.UUID(primary_key=True)
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val = columns.Text(index=True)
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class TestIndexedColumnDefinition(BaseCassEngTestCase):
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def test_exception_isnt_raised_if_an_index_is_defined_more_than_once(self):
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sync_table(IndexDefinitionModel)
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sync_table(IndexDefinitionModel)
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class ReservedWordModel(Model):
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token = columns.Text(primary_key=True)
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insert = columns.Integer(index=True)
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class TestQueryQuoting(BaseCassEngTestCase):
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def test_reserved_cql_words_can_be_used_as_column_names(self):
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"""
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"""
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sync_table(ReservedWordModel)
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model1 = ReservedWordModel.create(token='1', insert=5)
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model2 = ReservedWordModel.filter(token='1')
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assert len(model2) == 1
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assert model1.token == model2[0].token
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assert model1.insert == model2[0].insert
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class TestQueryModel(Model):
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test_id = columns.UUID(primary_key=True, default=uuid4)
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date = columns.Date(primary_key=True)
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description = columns.Text()
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class TestQuerying(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(TestQuerying, cls).setUpClass()
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drop_table(TestQueryModel)
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sync_table(TestQueryModel)
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@classmethod
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def tearDownClass(cls):
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super(TestQuerying, cls).tearDownClass()
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drop_table(TestQueryModel)
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def test_query_with_date(self):
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uid = uuid4()
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day = date(2013, 11, 26)
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obj = TestQueryModel.create(test_id=uid, date=day, description=u'foo')
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self.assertEqual(obj.description, u'foo')
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inst = TestQueryModel.filter(
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TestQueryModel.test_id == uid,
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TestQueryModel.date == day).limit(1).first()
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assert inst.test_id == uid
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assert inst.date == day
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def test_none_filter_fails():
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class NoneFilterModel(Model):
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pk = columns.Integer(primary_key=True)
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v = columns.Integer()
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sync_table(NoneFilterModel)
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try:
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NoneFilterModel.objects(pk=None)
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raise Exception("fail")
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except CQLEngineException as e:
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pass
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