Created
September 8, 2019 06:47
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import sys | |
import unittest | |
import mysql.connector | |
import prestodb | |
sys.path.append('../') | |
from airflow_api import AirflowAPI | |
from db_util import DBUtil | |
from constants import PRESTO_DB_PORT,MYSQL_DB_PORT | |
class TestPrestoToMySqlDag(unittest.TestCase): | |
"""Integration test for presto to mysql transfer""" | |
mysql_conn = None | |
prest_conn = None | |
def setUp(self): | |
presto_catlog="blackhole" | |
presto_schema= "default" | |
mysql_database="mysql" | |
mysql_user="mysql" | |
mysql_password="mysql" | |
self.airflow_api = AirflowAPI() | |
self.minikube_ip = str(self.airflow_api.get_minikube_ip()) | |
self.db_util = DBUtil() | |
self.airflow_api.add_presto_connection("presto-conn",presto_catlog | |
,presto_schema) | |
self.airflow_api.add_mysql_connection("mysql-conn", mysql_database, | |
mysql_user, mysql_password) | |
self.mysql_conn = mysql.connector.connect(user=mysql_user, | |
password=mysql_password, | |
host=self.minikube_ip, | |
port=MYSQL_DB_PORT, | |
database=mysql_database, | |
use_pure=False) | |
self.prest_conn = prestodb.dbapi.connect( | |
host=self.minikube_ip, | |
port=PRESTO_DB_PORT, | |
user='admin', | |
catalog=presto_catlog, | |
schema=presto_schema, | |
) | |
create_mysql_table_sql = """ | |
CREATE TABLE IF NOT EXISTS mysql_region ( | |
name VARCHAR(50),count int(10) | |
); | |
""" | |
self.db_util.create_table(self.mysql_conn,create_mysql_table_sql) | |
create_presto_table_sql = """ | |
CREATE TABLE region ( | |
name varchar | |
) | |
WITH ( | |
split_count = 1, | |
pages_per_split = 1, | |
rows_per_page = 1, | |
page_processing_delay = '5s' | |
)""" | |
self.db_util.create_table(self.prest_conn,create_presto_table_sql) | |
insert_query_1 = "insert into region values('INDIA')" | |
self.db_util.insert_into_table(self.prest_conn,insert_query_1) | |
def test_presto_to_mysql_transfer(self): | |
"""should transfer data from presto to mysql""" | |
execution_date = "2019-05-12T14:00:00+00:00" | |
dag_id = "presto_to_mysql" | |
self.airflow_api.trigger_dag(dag_id, execution_date) | |
is_running = True | |
while is_running: | |
is_running = self.airflow_api.is_dag_running(dag_id, execution_date) | |
self.assertEqual(is_running, False) | |
self.assertEqual(self.airflow_api.get_dag_status(dag_id, | |
execution_date), "success") | |
mysql_select_query = "SELECT name FROM mysql_region" | |
row_count=self.db_util.get_row_count(self.mysql_conn,mysql_select_query) | |
self.assertEqual(1, len(row_count)) | |
def tearDown(self): | |
drop_mysql_table="drop table mysql_region" | |
drop_presto_table = "drop table region" | |
self.db_util.drop_table(self.mysql_conn,drop_mysql_table) | |
self.db_util.drop_table(self.prest_conn,drop_presto_table) | |
self.mysql_conn.close() | |
self.prest_conn.close() | |
if __name__ == '__main__': | |
unittest.main() |
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