How to use the eccodes.BufrMessage function in eccodes

def test_copy_data(self):
        """Can copy data section from one message to another"""
        bufr = BufrMessage(sample='BUFR3')
        with BufrFile('../../data/bufr/metar_with_2_bias.bufr') as bufr_file:
            bufrin = BufrMessage(bufr_file)
            ivalues=(
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 0)
            bufr['inputDataPresentIndicator'] = ivalues
            bufr['edition'] = 3
            bufr['masterTableNumber'] = 0
            bufr['bufrHeaderSubCentre'] = 0
            bufr['bufrHeaderCentre'] = 98
            bufr['updateSequenceNumber'] = 1
            bufr['dataCategory'] = 0
            bufr['dataSubCategory'] = 140

def test_copy_data(self):
        """Can copy data section from one message to another"""
        bufr = BufrMessage(sample='BUFR3')
        with BufrFile('../../data/bufr/metar_with_2_bias.bufr') as bufr_file:
            bufrin = BufrMessage(bufr_file)
            ivalues = (
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 0)
            bufr['inputDataPresentIndicator'] = ivalues
            bufr['edition'] = 3
            bufr['masterTableNumber'] = 0
            bufr['bufrHeaderSubCentre'] = 0
            bufr['bufrHeaderCentre'] = 98
            bufr['updateSequenceNumber'] = 1
            bufr['dataCategory'] = 0
            bufr['dataSubCategory'] = 140

def test_copy_data(self):
        """Can copy data section from one message to another"""
        bufr = BufrMessage(sample='BUFR3')
        with BufrFile('../../data/bufr/metar_with_2_bias.bufr') as bufr_file:
            bufrin = BufrMessage(bufr_file)
            ivalues = (
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
                1, 1, 1, 1, 1, 1, 1, 1, 0)
            bufr['inputDataPresentIndicator'] = ivalues
            bufr['edition'] = 3
            bufr['masterTableNumber'] = 0
            bufr['bufrHeaderSubCentre'] = 0
            bufr['bufrHeaderCentre'] = 98
            bufr['updateSequenceNumber'] = 1

                self.assertRaises(IOError, lambda: BufrMessage(bufr_file))

def test_memory_management(self):
        """Messages in BufrFile can be opened and closed properly."""
        with BufrFile(TESTBUFR) as bufr_file:
            self.assertEqual(len(bufr_file), 3)
            for i in range(len(bufr_file)):
                msg = BufrMessage(bufr_file)
                self.assertEqual(msg["bufrHeaderCentre"], 98)
                self.assertEqual(msg['count'], i+1)
            self.assertEqual(len(bufr_file.open_messages), 3)
        self.assertEquals(len(bufr_file.open_messages), 0)

def test_serialize(self):
        """Message can be serialized to file."""
        with BufrFile(TESTBUFR) as bufr_file:
            msg = BufrMessage(bufr_file)
            with open(TEST_OUTPUT, "w") as test:
                msg.write(test)
        os.unlink(TEST_OUTPUT)

def test_memory_management(self):
        """Messages in BufrFile can be opened and closed properly."""
        with BufrFile(TESTBUFR) as bufr_file:
            self.assertEqual(len(bufr_file), 3)
            for i in range(len(bufr_file)):
                msg = BufrMessage(bufr_file)
                self.assertEqual(msg["bufrHeaderCentre"], 98)
                self.assertEqual(msg['count'], i + 1)
            self.assertEqual(len(bufr_file.open_messages), 3)
        self.assertEqual(len(bufr_file.open_messages), 0)

def test_content(self):
        """Data values are read correctly from BufrMessage."""
        with BufrFile(TESTBUFR) as bufr_file:
            msg = BufrMessage(bufr_file)
            msg.unpack()
            self.assertEqual(msg["airTemperatureAt2M"], 274.5)

def test_clone(self):
        """Messages can be used to produce clone Messages."""
        with BufrFile(TESTBUFR) as bufr_file:
            msg = BufrMessage(bufr_file)
            msg2 = BufrMessage(clone=msg)
            self.assertSequenceEqual(list(msg.keys()), list(msg2.keys()))

            self.assertRaises(IOError, lambda: BufrMessage(bufr_file))