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[AIRFLOW-2427] Add tests to named hive sensor
Closes apache#3323 from gglanzani/AIRFLOW-2427 (cherry picked from commit b18b437) Signed-off-by: Fokko Driesprong <[email protected]>
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| # -*- coding: utf-8 -*- | ||
| # | ||
| # Licensed to the Apache Software Foundation (ASF) under one | ||
| # or more contributor license agreements. See the NOTICE file | ||
| # distributed with this work for additional information | ||
| # regarding copyright ownership. The ASF licenses this file | ||
| # to you 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 random | ||
| import unittest | ||
| from datetime import timedelta | ||
|
|
||
| from airflow import configuration, DAG, operators | ||
| from airflow.sensors.named_hive_partition_sensor import NamedHivePartitionSensor | ||
| from airflow.utils.timezone import datetime | ||
| from airflow.hooks.hive_hooks import HiveMetastoreHook | ||
|
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| configuration.load_test_config() | ||
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| DEFAULT_DATE = datetime(2015, 1, 1) | ||
| DEFAULT_DATE_ISO = DEFAULT_DATE.isoformat() | ||
| DEFAULT_DATE_DS = DEFAULT_DATE_ISO[:10] | ||
|
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|
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| class NamedHivePartitionSensorTests(unittest.TestCase): | ||
| def setUp(self): | ||
| configuration.load_test_config() | ||
| args = {'owner': 'airflow', 'start_date': DEFAULT_DATE} | ||
| self.dag = DAG('test_dag_id', default_args=args) | ||
| self.next_day = (DEFAULT_DATE + | ||
| timedelta(days=1)).isoformat()[:10] | ||
| self.database = 'airflow' | ||
| self.partition_by = 'ds' | ||
| self.table = 'static_babynames_partitioned' | ||
| self.hql = """ | ||
| CREATE DATABASE IF NOT EXISTS {{ params.database }}; | ||
| USE {{ params.database }}; | ||
| DROP TABLE IF EXISTS {{ params.table }}; | ||
| CREATE TABLE IF NOT EXISTS {{ params.table }} ( | ||
| state string, | ||
| year string, | ||
| name string, | ||
| gender string, | ||
| num int) | ||
| PARTITIONED BY ({{ params.partition_by }} string); | ||
| ALTER TABLE {{ params.table }} | ||
| ADD PARTITION({{ params.partition_by }}='{{ ds }}'); | ||
| """ | ||
| self.hook = HiveMetastoreHook() | ||
| t = operators.hive_operator.HiveOperator( | ||
| task_id='HiveHook_' + str(random.randint(1, 10000)), | ||
| params={ | ||
| 'database': self.database, | ||
| 'table': self.table, | ||
| 'partition_by': self.partition_by | ||
| }, | ||
| hive_cli_conn_id='beeline_default', | ||
| hql=self.hql, dag=self.dag) | ||
| t.run(start_date=DEFAULT_DATE, end_date=DEFAULT_DATE, | ||
| ignore_ti_state=True) | ||
|
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| def tearDown(self): | ||
| hook = HiveMetastoreHook() | ||
| with hook.get_conn() as metastore: | ||
| metastore.drop_table(self.database, self.table, deleteData=True) | ||
|
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| def test_parse_partition_name_correct(self): | ||
| schema = 'default' | ||
| table = 'users' | ||
| partition = 'ds=2016-01-01/state=IT' | ||
| name = '{schema}.{table}/{partition}'.format(schema=schema, | ||
| table=table, | ||
| partition=partition) | ||
| parsed_schema, parsed_table, parsed_partition = ( | ||
| NamedHivePartitionSensor.parse_partition_name(name) | ||
| ) | ||
| self.assertEqual(schema, parsed_schema) | ||
| self.assertEqual(table, parsed_table) | ||
| self.assertEqual(partition, parsed_partition) | ||
|
|
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| def test_parse_partition_name_incorrect(self): | ||
| name = 'incorrect.name' | ||
| with self.assertRaises(ValueError): | ||
| NamedHivePartitionSensor.parse_partition_name(name) | ||
|
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| def test_parse_partition_name_default(self): | ||
| table = 'users' | ||
| partition = 'ds=2016-01-01/state=IT' | ||
| name = '{table}/{partition}'.format(table=table, | ||
| partition=partition) | ||
| parsed_schema, parsed_table, parsed_partition = ( | ||
| NamedHivePartitionSensor.parse_partition_name(name) | ||
| ) | ||
| self.assertEqual('default', parsed_schema) | ||
| self.assertEqual(table, parsed_table) | ||
| self.assertEqual(partition, parsed_partition) | ||
|
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| def test_poke_existing(self): | ||
| partitions = ["{}.{}/{}={}".format(self.database, | ||
| self.table, | ||
| self.partition_by, | ||
| DEFAULT_DATE_DS)] | ||
| sensor = NamedHivePartitionSensor(partition_names=partitions, | ||
| task_id='test_poke_existing', | ||
| poke_interval=1, | ||
| hook=self.hook, | ||
| dag=self.dag) | ||
| self.assertTrue(sensor.poke(None)) | ||
|
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| def test_poke_non_existing(self): | ||
| partitions = ["{}.{}/{}={}".format(self.database, | ||
| self.table, | ||
| self.partition_by, | ||
| self.next_day)] | ||
| sensor = NamedHivePartitionSensor(partition_names=partitions, | ||
| task_id='test_poke_non_existing', | ||
| poke_interval=1, | ||
| hook=self.hook, | ||
| dag=self.dag) | ||
| self.assertFalse(sensor.poke(None)) |