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import mock
import unittest

from airflow.contrib.operators.winrm_operator import WinRMOperator
from airflow.exceptions import AirflowException


class WinRMOperatorTest(unittest.TestCase):
    def test_no_winrm_hook_no_ssh_conn_id(self):
        op = WinRMOperator(task_id='test_task_id',
                           winrm_hook=None,
                           ssh_conn_id=None)
        exception_msg = "Cannot operate without winrm_hook or ssh_conn_id."
        with self.assertRaisesRegexp(AirflowException, exception_msg):
            op.execute(None)

    @mock.patch('airflow.contrib.operators.winrm_operator.WinRMHook')
    def test_no_command(self, mock_hook):
        op = WinRMOperator(
            task_id='test_task_id',
            winrm_hook=mock_hook,
            command=None
        )
        exception_msg = "No command specified so nothing to execute here."
        with self.assertRaisesRegexp(AirflowException, exception_msg):
            op.execute(None)


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

Add 2 tests for WinRMOperator (#5108)