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test_multi_tenancy.py
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# Copyright (c) 2016-2020 Memgraph Ltd. [https://memgraph.com]
#
# 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.
import mgclient
import pytest
import tempfile
from common import start_memgraph, MEMGRAPH_PORT
def assert_db(cursor, db_name):
cursor.execute("SHOW DATABASE")
assert cursor.fetchall() == [(db_name, )]
def assert_data(cursor, db):
cursor.execute('MATCH (n:Node) RETURN n.db')
cursor.fetchall() == [(db,)]
@pytest.fixture(scope="function")
def memgraph_server():
# memgraph = start_memgraph()
yield "127.0.0.1", MEMGRAPH_PORT
# memgraph.kill()
# memgraph.wait()
# def test_connect_database_fail(memgraph_server):
# host, port = memgraph_server
# # Connected to a non existent database
# conn = mgclient.connect(
# host=host,
# port=port,
# lazy=True,
# database="does not exist")
# cursor = conn.cursor()
# with pytest.raises(mgclient.DatabaseError):
# cursor.execute("MATCH(n) RETURN n;")
# def test_connect_database(memgraph_server):
# host, port = memgraph_server
# conn = mgclient.connect(host=host, port=port, lazy=True)
# cursor = conn.cursor()
# #setup
# assert_db(cursor, "memgraph")
# cursor.execute('CREATE (:Node{db:"memgraph"})')
# cursor.fetchall()
# cursor.execute("CREATE DATABASE db1")
# cursor.fetchall()
# cursor.execute("USE DATABASE db1")
# cursor.fetchall()
# assert_db(cursor, "db1")
# cursor.execute('CREATE (:Node{db:"db1"})')
# cursor.fetchall()
# cursor.execute("CREATE DATABASE db2")
# cursor.fetchall()
# cursor.execute("USE DATABASE db2")
# cursor.fetchall()
# assert_db(cursor, "db2")
# cursor.execute('CREATE (:Node{db:"db2"})')
# cursor.fetchall()
# #connection tests
# #default
# conn = mgclient.connect(host=host, port=port, lazy=True)
# cursor = conn.cursor()
# assert_db(cursor, "memgraph")
# assert_data(cursor, "memgraph")
# #memgraph
# conn = mgclient.connect(host=host, port=port, lazy=True, database="memgraph")
# cursor = conn.cursor()
# assert_db(cursor, "memgraph")
# assert_data(cursor, "memgraph")
# #db1
# conn = mgclient.connect(host=host, port=port, lazy=True, database="db1")
# cursor = conn.cursor()
# assert_db(cursor, "db1")
# assert_data(cursor, "db1")
# #db2
# conn = mgclient.connect(host=host, port=port, lazy=True, database="db2")
# cursor = conn.cursor()
# assert_db(cursor, "db2")
# assert_data(cursor, "db2")
def test_connect_database_and_block(memgraph_server):
host, port = memgraph_server
conn = mgclient.connect(host=host, port=port, lazy=True)
cursor = conn.cursor()
#setup
assert_db(cursor, "memgraph")
cursor.execute("CREATE DATABASE db1")
cursor.fetchall()
cursor.execute("CREATE DATABASE db2")
cursor.fetchall()
#connection tests
#default <- should allow db switching
conn = mgclient.connect(host=host, port=port, lazy=True)
cursor = conn.cursor()
assert_db(cursor, "memgraph")
cursor.execute("USE DATABASE db1;")
cursor.fetchall()
assert_db(cursor, "db1")
cursor.execute("USE DATABASE db2;")
cursor.fetchall()
assert_db(cursor, "db2")
#memgraph
conn = mgclient.connect(host=host, port=port, lazy=True, database="memgraph")
cursor = conn.cursor()
assert_db(cursor, "memgraph")
with pytest.raises(mgclient.DatabaseError):
cursor.execute("USE DATABASE db2;")
print(cursor.fetchall())
#db1
conn = mgclient.connect(host=host, port=port, lazy=True, database="db1")
cursor = conn.cursor()
assert_db(cursor, "db1")
with pytest.raises(mgclient.DatabaseError):
cursor.execute("USE DATABASE db2;")
cursor.fetchall()
#db2
conn = mgclient.connect(host=host, port=port, lazy=True, database="db2")
cursor = conn.cursor()
assert_db(cursor, "db2")
with pytest.raises(mgclient.DatabaseError):
cursor.execute("USE DATABASE memgraph;")
cursor.fetchall()