# Copyright 2015 DataStax, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from unittest import TestCase
from cassandra.cqlengine.statements import AssignmentStatement, StatementException


class AssignmentStatementTest(TestCase):

    def test_add_assignment_type_checking(self):
        """ tests that only assignment clauses can be added to queries """
        stmt = AssignmentStatement('table', [])
        with self.assertRaises(StatementException):
            stmt.add_assignment_clause('x=5')