SSB-47: simplified tests

CAL/CalibrationCommon/test/t_calibration_table.py

@@ -32,10 +32,8 @@ class TestCalibrationTable(unittest.TestCase):
             test_calibration_table.store_to_file(temp_file.name)
 
             stored_calibration_table = CalibrationTable.load_from_file(temp_file.name)
-            self.assertEqual(test_calibration_table.observation_station,
-                             stored_calibration_table.observation_station)
-            assert_array_equal(test_calibration_table.data,
-                               stored_calibration_table.data)
+            self.assertEqual(test_calibration_table,
+                             stored_calibration_table)
 
     def test_storing_to_hdf(self):
         with NamedTemporaryFile('w+b') as temp_file: