Files
deb-python-cassandra-driver/cqlengine/tests/query/test_updates.py
2014-02-09 15:57:40 -05:00

185 lines
7.5 KiB
Python

from uuid import uuid4
from cqlengine.exceptions import ValidationError
from cqlengine.query import QueryException
from cqlengine.tests.base import BaseCassEngTestCase
from cqlengine.models import Model
from cqlengine.management import sync_table, drop_table
from cqlengine import columns
class TestQueryUpdateModel(Model):
partition = columns.UUID(primary_key=True, default=uuid4)
cluster = columns.Integer(primary_key=True)
count = columns.Integer(required=False)
text = columns.Text(required=False, index=True)
text_set = columns.Set(columns.Text, required=False)
text_list = columns.List(columns.Text, required=False)
class QueryUpdateTests(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(QueryUpdateTests, cls).setUpClass()
sync_table(TestQueryUpdateModel)
@classmethod
def tearDownClass(cls):
super(QueryUpdateTests, cls).tearDownClass()
drop_table(TestQueryUpdateModel)
def test_update_values(self):
""" tests calling udpate on a queryset """
partition = uuid4()
for i in range(5):
TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
# sanity check
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == i
assert row.text == str(i)
# perform update
TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count=6)
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == (6 if i == 3 else i)
assert row.text == str(i)
def test_update_values_validation(self):
""" tests calling udpate on models with values passed in """
partition = uuid4()
for i in range(5):
TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
# sanity check
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == i
assert row.text == str(i)
# perform update
with self.assertRaises(ValidationError):
TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count='asdf')
def test_invalid_update_kwarg(self):
""" tests that passing in a kwarg to the update method that isn't a column will fail """
with self.assertRaises(ValidationError):
TestQueryUpdateModel.objects(partition=uuid4(), cluster=3).update(bacon=5000)
def test_primary_key_update_failure(self):
""" tests that attempting to update the value of a primary key will fail """
with self.assertRaises(ValidationError):
TestQueryUpdateModel.objects(partition=uuid4(), cluster=3).update(cluster=5000)
def test_null_update_deletes_column(self):
""" setting a field to null in the update should issue a delete statement """
partition = uuid4()
for i in range(5):
TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
# sanity check
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == i
assert row.text == str(i)
# perform update
TestQueryUpdateModel.objects(partition=partition, cluster=3).update(text=None)
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == i
assert row.text == (None if i == 3 else str(i))
def test_mixed_value_and_null_update(self):
""" tests that updating a columns value, and removing another works properly """
partition = uuid4()
for i in range(5):
TestQueryUpdateModel.create(partition=partition, cluster=i, count=i, text=str(i))
# sanity check
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == i
assert row.text == str(i)
# perform update
TestQueryUpdateModel.objects(partition=partition, cluster=3).update(count=6, text=None)
for i, row in enumerate(TestQueryUpdateModel.objects(partition=partition)):
assert row.cluster == i
assert row.count == (6 if i == 3 else i)
assert row.text == (None if i == 3 else str(i))
def test_counter_updates(self):
pass
def test_set_add_updates(self):
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects.create(
partition=partition, cluster=cluster, text_set={"foo"})
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(text_set__add={'bar'})
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_set, {"foo", "bar"})
def test_set_add_updates_new_record(self):
""" If the key doesn't exist yet, an update creates the record
"""
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(text_set__add={'bar'})
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_set, {"bar"})
def test_set_remove_updates(self):
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects.create(
partition=partition, cluster=cluster, text_set={"foo", "baz"})
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(
text_set__remove={'foo'})
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_set, {"baz"})
def test_set_remove_new_record(self):
""" Removing something not in the set should silently do nothing
"""
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects.create(
partition=partition, cluster=cluster, text_set={"foo"})
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(
text_set__remove={'afsd'})
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_set, {"foo"})
def test_list_append_updates(self):
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects.create(
partition=partition, cluster=cluster, text_list=["foo"])
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(
text_list__append=['bar'])
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_list, ["foo", "bar"])
def test_list_prepend_updates(self):
partition = uuid4()
cluster = 1
TestQueryUpdateModel.objects.create(
partition=partition, cluster=cluster, text_list=["foo"])
TestQueryUpdateModel.objects(
partition=partition, cluster=cluster).update(
text_list__prepend=['bar'])
obj = TestQueryUpdateModel.objects.get(partition=partition, cluster=cluster)
self.assertEqual(obj.text_list, ["bar", "foo"])