def test_write_pairs(self, mock_open):
     pairs = [('1.1.1.1', 'bm_0'), ('1.1.1.2', 'bm_1')]
     mock_open.return_value = mock.MagicMock()
     build_nodes_json._write_pairs(pairs)
     calls = [mock.call('# A list of BMC addresses and the name of the '
                        'instance that BMC manages.\n'),
              mock.call('1.1.1.1 bm_0\n'),
              mock.call('1.1.1.2 bm_1\n'),
              ]
     f = mock_open.return_value.__enter__.return_value
     self.assertEqual(calls, f.write.mock_calls)
 def test_write_pairs(self, mock_open):
     pairs = [('1.1.1.1', 'bm_0'), ('1.1.1.2', 'bm_1')]
     mock_open.return_value = mock.MagicMock()
     build_nodes_json._write_pairs(pairs)
     calls = [
         mock.call('# A list of BMC addresses and the name of the '
                   'instance that BMC manages.\n'),
         mock.call('1.1.1.1 bm_0\n'),
         mock.call('1.1.1.2 bm_1\n'),
     ]
     f = mock_open.return_value.__enter__.return_value
     self.assertEqual(calls, f.write.mock_calls)