Files
deb-python-cassandra-driver/cqlengine/tests/model/test_model_io.py

104 lines
2.9 KiB
Python

from unittest import skip
from cqlengine.tests.base import BaseCassEngTestCase
from cqlengine.management import create_table
from cqlengine.management import delete_table
from cqlengine.models import Model
from cqlengine import columns
class TestModel(Model):
count = columns.Integer()
text = columns.Text(required=False)
class TestModelIO(BaseCassEngTestCase):
@classmethod
def setUpClass(cls):
super(TestModelIO, cls).setUpClass()
create_table(TestModel)
@classmethod
def tearDownClass(cls):
super(TestModelIO, cls).tearDownClass()
delete_table(TestModel)
def test_model_save_and_load(self):
"""
Tests that models can be saved and retrieved
"""
tm = TestModel.create(count=8, text='123456789')
tm2 = TestModel.objects(id=tm.pk).first()
for cname in tm._columns.keys():
self.assertEquals(getattr(tm, cname), getattr(tm2, cname))
def test_model_updating_works_properly(self):
"""
Tests that subsequent saves after initial model creation work
"""
tm = TestModel.objects.create(count=8, text='123456789')
tm.count = 100
tm.save()
tm2 = TestModel.objects(id=tm.pk).first()
self.assertEquals(tm.count, tm2.count)
def test_model_deleting_works_properly(self):
"""
Tests that an instance's delete method deletes the instance
"""
tm = TestModel.create(count=8, text='123456789')
tm.delete()
tm2 = TestModel.objects(id=tm.pk).first()
self.assertIsNone(tm2)
def test_column_deleting_works_properly(self):
"""
"""
tm = TestModel.create(count=8, text='123456789')
tm.text = None
tm.save()
tm2 = TestModel.objects(id=tm.pk).first()
assert tm2.text is None
assert tm2._values['text'].previous_value is None
def test_a_sensical_error_is_raised_if_you_try_to_create_a_table_twice(self):
"""
"""
create_table(TestModel)
create_table(TestModel)
class IndexDefinitionModel(Model):
key = columns.UUID(primary_key=True)
val = columns.Text(index=True)
class TestIndexedColumnDefinition(BaseCassEngTestCase):
def test_exception_isnt_raised_if_an_index_is_defined_more_than_once(self):
create_table(IndexDefinitionModel)
create_table(IndexDefinitionModel)
class ReservedWordModel(Model):
token = columns.Text(primary_key=True)
insert = columns.Integer(index=True)
class TestQueryQuoting(BaseCassEngTestCase):
def test_reserved_cql_words_can_be_used_as_column_names(self):
"""
"""
create_table(ReservedWordModel)
model1 = ReservedWordModel.create(token='1', insert=5)
model2 = ReservedWordModel.filter(token='1')
assert len(model2) == 1
assert model1.token == model2[0].token
assert model1.insert == model2[0].insert