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#
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import unittest
from unittest.mock import patch

from airflow import DAG
from airflow.models import Connection
from airflow.providers.apache.livy.hooks.livy import BatchState, LivyHook
from airflow.providers.apache.livy.sensors.livy import LivySensor
from airflow.utils import db, timezone

DEFAULT_DATE = timezone.datetime(2017, 1, 1)


class TestLivySensor(unittest.TestCase):

    def setUp(self):
        args = {
            'owner': 'airflow',
            'start_date': DEFAULT_DATE
        }
        self.dag = DAG('test_dag_id', default_args=args)
        db.merge_conn(Connection(
            conn_id='livyunittest', conn_type='livy',
            host='http://localhost:8998'
        ))

    @patch('airflow.providers.apache.livy.hooks.livy.LivyHook.get_batch_state')
    def test_poke(self, mock_state):
        sensor = LivySensor(
            livy_conn_id='livyunittest',
            task_id='livy_sensor_test',
            dag=self.dag,
            batch_id=100
        )

        for state in BatchState:
            with self.subTest(state.value):
                mock_state.return_value = state
                self.assertEqual(sensor.poke({}), state in LivyHook.TERMINAL_STATES)


if __name__ == '__main__':
    unittest.main()
