Add tests for storage

tests/integration/test_storage_postgresql/test.py

@@ -0,0 +1,94 @@
+import time
+
+import pytest
+import psycopg2
+from helpers.cluster import ClickHouseCluster
+from helpers.test_tools import assert_eq_with_retry
+from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT
+
+cluster = ClickHouseCluster(__file__)
+node1 = cluster.add_instance('node1', main_configs=[], with_postgres=True)
+
+def get_postgres_conn(database=False):
+    if database == True:
+        conn_string = "host='localhost' dbname='clickhouse' user='postgres' password='mysecretpassword'"
+    else:
+        conn_string = "host='localhost' user='postgres' password='mysecretpassword'"
+    conn = psycopg2.connect(conn_string)
+    conn.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)
+    conn.autocommit = True
+    return conn
+
+def create_postgres_db(conn, name):
+    cursor = conn.cursor()
+    cursor.execute("CREATE DATABASE {}".format(name))
+
+
+@pytest.fixture(scope="module")
+def started_cluster():
+    try:
+        cluster.start()
+        postgres_conn = get_postgres_conn()
+        print("postgres connected")
+        create_postgres_db(postgres_conn, 'clickhouse')
+        yield cluster
+
+    finally:
+        cluster.shutdown()
+
+
+def test_postgres_conversions(started_cluster):
+    conn = get_postgres_conn(True)
+    cursor = conn.cursor()
+    table_name = 'test_types'
+    cursor.execute(
+        '''CREATE TABLE IF NOT EXISTS {} (
+        a smallint, b integer, c bigint, d real, e double precision, f serial, g bigserial,
+        h timestamp, i date, j numeric(5, 5), k decimal(5, 5))'''.format(table_name))
+    node1.query('''
+        INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword') VALUES
+        (-32768, -2147483648, -9223372036854775808, 1.12345, 1.1234567890, 2147483647, 9223372036854775807, '2000-05-12 12:12:12', '2000-05-12', 0.2, 0.2)'''.format(table_name))
+    result = node1.query('''
+        SELECT * FROM postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name))
+    assert(result == '-32768\t-2147483648\t-9223372036854775808\t1.12345\t1.123456789\t2147483647\t9223372036854775807\t2000-05-12 12:12:12\t2000-05-12\t0.20000\t0.20000\n')
+
+    table_name = 'test_array_dimensions'
+    cursor.execute(
+        '''CREATE TABLE IF NOT EXISTS {} (a date[] NOT NULL, b integer[][][], c decimal(5, 2)[][][][][][])'''.format(table_name))
+    result = node1.query('''
+        DESCRIBE TABLE postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name))
+    expected ='a\tArray(Date)\t\t\t\t\t\nb\tArray(Array(Array(Nullable(Int32))))\t\t\t\t\t\nc\tArray(Array(Array(Array(Array(Array(Nullable(Decimal(5, 2))))))))'
+    assert(result.rstrip() == expected)
+
+    node1.query('''
+        INSERT INTO TABLE FUNCTION postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')
+        VALUES (['2000-05-12', '2000-05-12'], [[[1, 1], [NULL, NULL]], [[3, 3], [3, 3]], [[4, 4], [5, 5]]], [[[[[[0.1], [0.2], [0.3]]]]]])'''.format(table_name))
+    result = node1.query('''
+        SELECT * FROM postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name))
+    assert(result == '''['2000-05-12','2000-05-12']\t[[[1,1],[NULL,NULL]],[[3,3],[3,3]],[[4,4],[5,5]]]\t[[[[[[0.10],[0.20],[0.30]]]]]]\n''')
+
+
+def test_postgres_select_insert(started_cluster):
+    conn = get_postgres_conn(True)
+    cursor = conn.cursor()
+    table_name = 'test_many'
+    table = '''postgresql('postgres1:5432', 'clickhouse', '{}', 'postgres', 'mysecretpassword')'''.format(table_name)
+    cursor.execute('CREATE TABLE IF NOT EXISTS {} (a integer, b text, c integer)'.format(table_name))
+
+    result = node1.query('''
+        INSERT INTO TABLE FUNCTION {}
+        SELECT number, concat('name_', toString(number)), 3 from numbers(10000)'''.format(table))
+    check1 = "SELECT count() FROM {}".format(table)
+    check2 = "SELECT Sum(c) FROM {}".format(table)
+    check3 = "SELECT count(c) FROM {} WHERE a % 2 == 0".format(table)
+    check4 = "SELECT count() FROM {} WHERE b LIKE concat('name_', toString(1))".format(table)
+    assert (node1.query(check1)).rstrip() == '10000'
+    assert (node1.query(check2)).rstrip() == '30000'
+    assert (node1.query(check3)).rstrip() == '5000'
+    assert (node1.query(check4)).rstrip() == '1'
+
+
+if __name__ == '__main__':
+    cluster.start()
+    input("Cluster created, press any key to destroy...")
+    cluster.shutdown()