233 lines
9.6 KiB
Python
233 lines
9.6 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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from cassandra.cqlengine import ValidationError
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from cassandra.cqlengine.models import Model
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from cassandra.cqlengine.management import sync_table, drop_table
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from cassandra.cqlengine import columns
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from tests.integration.cqlengine import is_prepend_reversed
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from tests.integration.cqlengine.base import BaseCassEngTestCase
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class TestQueryUpdateModel(Model):
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partition = columns.UUID(primary_key=True, default=uuid4)
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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, index=True)
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text_set = columns.Set(columns.Text, required=False)
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text_list = columns.List(columns.Text, required=False)
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text_map = columns.Map(columns.Text, columns.Text, required=False)
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class QueryUpdateTests(BaseCassEngTestCase):
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@classmethod
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def setUpClass(cls):
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super(QueryUpdateTests, cls).setUpClass()
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sync_table(TestQueryUpdateModel)
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@classmethod
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def tearDownClass(cls):
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super(QueryUpdateTests, cls).tearDownClass()
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drop_table(TestQueryUpdateModel)
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def test_update_values(self):
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""" tests calling udpate on a queryset """
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partition = uuid4()
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for i in range(5):
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TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
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# sanity check
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == i
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assert row.text == str(i)
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# perform update
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TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count=6)
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == (6 if i == 3 else i)
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assert row.text == str(i)
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def test_update_values_validation(self):
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""" tests calling udpate on models with values passed in """
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partition = uuid4()
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for i in range(5):
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TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
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# sanity check
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == i
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assert row.text == str(i)
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# perform update
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with self.assertRaises(ValidationError):
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TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count='asdf')
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def test_invalid_update_kwarg(self):
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""" tests that passing in a kwarg to the update method that isn't a column will fail """
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with self.assertRaises(ValidationError):
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TestQueryUpdateModel.objects(partition=uuid4(), cluster=3).update(bacon=5000)
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def test_primary_key_update_failure(self):
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""" tests that attempting to update the value of a primary key will fail """
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with self.assertRaises(ValidationError):
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TestQueryUpdateModel.objects(partition=uuid4(), cluster=3).update(cluster=5000)
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def test_null_update_deletes_column(self):
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""" setting a field to null in the update should issue a delete statement """
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partition = uuid4()
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for i in range(5):
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TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
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# sanity check
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == i
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assert row.text == str(i)
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# perform update
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TestQueryUpdateModel.objects(partition=partition, cluster=3).update(text=None)
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == i
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assert row.text == (None if i == 3 else str(i))
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def test_mixed_value_and_null_update(self):
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""" tests that updating a columns value, and removing another works properly """
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partition = uuid4()
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for i in range(5):
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TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
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# sanity check
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == i
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assert row.text == str(i)
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# perform update
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TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count=6, text=None)
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for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
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assert row.cluster == i
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assert row.count == (6 if i == 3 else i)
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assert row.text == (None if i == 3 else str(i))
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def test_counter_updates(self):
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pass
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def test_set_add_updates(self):
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster, text_set={"foo"})
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(text_set__add={'bar'})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_set, {"foo", "bar"})
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def test_set_add_updates_new_record(self):
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""" If the key doesn't exist yet, an update creates the record
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"""
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(text_set__add={'bar'})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_set, {"bar"})
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def test_set_remove_updates(self):
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster, text_set={"foo", "baz"})
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_set__remove={'foo'})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_set, {"baz"})
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def test_set_remove_new_record(self):
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""" Removing something not in the set should silently do nothing
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"""
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster, text_set={"foo"})
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_set__remove={'afsd'})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_set, {"foo"})
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def test_list_append_updates(self):
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster, text_list=["foo"])
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_list__append=['bar'])
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_list, ["foo", "bar"])
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def test_list_prepend_updates(self):
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""" Prepend two things since order is reversed by default by CQL """
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partition = uuid4()
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cluster = 1
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original = ["foo"]
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster, text_list=original)
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prepended = ['bar', 'baz']
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_list__prepend=prepended)
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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expected = (prepended[::-1] if is_prepend_reversed() else prepended) + original
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self.assertEqual(obj.text_list, expected)
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def test_map_update_updates(self):
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""" Merge a dictionary into existing value """
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster,
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text_map={"foo": '1', "bar": '2'})
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_map__update={"bar": '3', "baz": '4'})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_map, {"foo": '1', "bar": '3', "baz": '4'})
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def test_map_update_none_deletes_key(self):
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""" The CQL behavior is if you set a key in a map to null it deletes
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that key from the map. Test that this works with __update.
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"""
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partition = uuid4()
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cluster = 1
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TestQueryUpdateModel.objects.create(
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partition=partition, cluster=cluster,
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text_map={"foo": '1', "bar": '2'})
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TestQueryUpdateModel.objects(
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partition=partition, cluster=cluster).update(
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text_map__update={"bar": None})
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obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
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self.assertEqual(obj.text_map, {"foo": '1'})
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