def test_sftp_connection_is_only_established_if_required(self):
# Verify that SFTP connection is lazily established only if and when needed.
conn_params = {
'hostname': 'dummy.host.org',
'username': '******',
'password': '******'
}
# Verify sftp connection and client hasn't been established yet
client = ParamikoSSHClient(**conn_params)
client.connect()
self.assertIsNone(client.sftp_client)
# run method doesn't require sftp access so it shouldn't establish connection
client = ParamikoSSHClient(**conn_params)
client.connect()
client.run(cmd='whoami')
self.assertIsNone(client.sftp_client)
# Methods below require SFTP access so they should cause SFTP connection to be established
# put
client = ParamikoSSHClient(**conn_params)
client.connect()
path = '/root/random_script.sh'
client.put(path, path, mirror_local_mode=False)
self.assertIsNotNone(client.sftp_client)
# exists
client = ParamikoSSHClient(**conn_params)
client.connect()
client.exists('/root/somepath.txt')
self.assertIsNotNone(client.sftp_client)
# mkdir
client = ParamikoSSHClient(**conn_params)
client.connect()
client.mkdir('/root/somedirfoo')
self.assertIsNotNone(client.sftp_client)
# Verify close doesn't throw if SFTP connection is not established
client = ParamikoSSHClient(**conn_params)
client.connect()
self.assertIsNone(client.sftp_client)
client.close()
# Verify SFTP connection is closed if it's opened
client = ParamikoSSHClient(**conn_params)
client.connect()
client.mkdir('/root/somedirfoo')
self.assertIsNotNone(client.sftp_client)
client.close()
self.assertEqual(client.sftp_client.close.call_count, 1)
def test_sftp_connection_is_only_established_if_required(self):
# Verify that SFTP connection is lazily established only if and when needed.
conn_params = {'hostname': 'dummy.host.org',
'username': '******'}
# Verify sftp connection and client hasn't been established yet
client = ParamikoSSHClient(**conn_params)
client.connect()
self.assertTrue(client.sftp_client is None)
# run method doesn't require sftp access so it shouldn't establish connection
client = ParamikoSSHClient(**conn_params)
client.connect()
client.run(cmd='whoami')
self.assertTrue(client.sftp_client is None)
# Methods bellow require SFTP access so they should cause SFTP connection to be established
# put
client = ParamikoSSHClient(**conn_params)
client.connect()
path = '/root/random_script.sh'
client.put(path, path, mirror_local_mode=False)
self.assertTrue(client.sftp_client is not None)
# exists
client = ParamikoSSHClient(**conn_params)
client.connect()
client.exists('/root/somepath.txt')
self.assertTrue(client.sftp_client is not None)
# mkdir
client = ParamikoSSHClient(**conn_params)
client.connect()
client.mkdir('/root/somedirfoo')
self.assertTrue(client.sftp_client is not None)
# Verify close doesn't throw if SFTP connection is not established
client = ParamikoSSHClient(**conn_params)
client.connect()
self.assertTrue(client.sftp_client is None)
client.close()
# Verify SFTP connection is closed if it's opened
client = ParamikoSSHClient(**conn_params)
client.connect()
client.mkdir('/root/somedirfoo')
self.assertTrue(client.sftp_client is not None)
client.close()
self.assertEqual(client.sftp_client.close.call_count, 1)
