#
# Copyright 2017 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from __future__ import absolute_import
from __future__ import print_function
from unittest import TestCase, main
from binascii import unhexlify

from pyvoltha.adapters.extensions.omci.omci import *
from six.moves import range
import codecs


def hexify(frame):
    """Return a hexadecimal string encoding of input buffer"""
    return codecs.encode(bytes(frame),'hex')


def hex2raw(hex_string):
    """ convert a string or bytes containing a hexadecimal as raw bytes"""
    return codecs.decode(hex_string,'hex')


def chunk(indexable, chunk_size):
    for i in range(0, len(indexable), chunk_size):
        yield indexable[i:i + chunk_size]


class TestOmciFundamentals(TestCase):

    def test_bitpos_from_mask(self):

        f = lambda x: bitpos_from_mask(x)
        self.assertEqual(f(0), [])
        self.assertEqual(f(1), [0])
        self.assertEqual(f(3), [0, 1])
        self.assertEqual(f(255), [0, 1, 2, 3, 4, 5, 6, 7])
        self.assertEqual(f(0x800), [11])
        self.assertEqual(f(0x811), [0, 4, 11])

        f = lambda x: bitpos_from_mask(x, 16, -1)
        self.assertEqual(f(0), [])
        self.assertEqual(f(1), [16])
        self.assertEqual(f(0x800), [5])
        self.assertEqual(f(0x801), [5, 16])


    def test_attribute_indeices_from_mask(self):

        f = EntityClass.attribute_indices_from_mask
        self.assertEqual(f(0), [])
        self.assertEqual(f(0x800), [5])
        self.assertEqual(f(0xf000), [1, 2, 3, 4])
        self.assertEqual(f(0xf804), [1, 2, 3, 4, 5, 14])

    def test_entity_attribute_serialization(self):

        e = CircuitPack(vendor_id='F')
        self.assertEqual(e.serialize(), b'F\x00\x00\x00')

        e = CircuitPack(vendor_id='FOOX')
        self.assertEqual(e.serialize(), b'FOOX')

        e = CircuitPack(vendor_id='FOOX', number_of_ports=16)
        self.assertEqual(e.serialize(), b'\x10FOOX')

    def test_entity_attribute_serialization_mask_based(self):

        e = CircuitPack(
            number_of_ports=4,
            serial_number=b'BCMX31323334', # serial number is 4 ascii + 4 hex. 8 octets on the wire
            version=b'a1c12fba91de',
            vendor_id=b'BCM',
            total_tcont_buffer_number=128
        )

        # Full object
        self.assertEqual(e.serialize(),
                         b'\x04BCMX1234a1c12fba91de\x00\x00BCM\x00\x80')

        # Explicit mask with valid values
        self.assertEqual(e.serialize(0x800), b'BCM\x00')
        self.assertEqual(e.serialize(0x6800), b'\x04BCMX1234BCM\x00')

        # Referring to an unfilled field is regarded as error
        self.assertRaises(OmciUninitializedFieldError, e.serialize, 0xc00)

    def test_omci_mask_value_gen(self):
        cls = CircuitPack
        self.assertEqual(cls.mask_for('vendor_id'), 0x800)
        self.assertEqual(
            cls.mask_for('vendor_id', 'bridged_or_ip_ind'), 0x900)

    reference_get_request_hex = (
        b'0000490a'
        b'00060101'
        b'08000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000028'
    )
    reference_get_request_raw = hex2raw(reference_get_request_hex)

    reference_get_response_hex = (
        b'0000290a'
        b'00060101'
        b'00080050'
        b'4d435300'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000000'
        b'00000028'
    )
    reference_get_response_raw = hex2raw(reference_get_response_hex)

    def test_omci_frame_serialization(self):

        frame = OmciFrame(
            transaction_id=0,
            message_type=OmciGet.message_id,
            omci_message=OmciGet(
                entity_class=CircuitPack.class_id,
                entity_id=0x101,
                attributes_mask=CircuitPack.mask_for('vendor_id')
            )
        )
        self.assertEqual(hexify(frame), self.reference_get_request_hex)

    def test_omci_frame_deserialization_no_data(self):
        frame = OmciFrame(self.reference_get_request_raw)
        self.assertEqual(frame.transaction_id, 0)
        self.assertEqual(frame.message_type, 0x49)
        self.assertEqual(frame.omci, 10)
        self.assertEqual(frame.omci_message.entity_class, 0x6)
        self.assertEqual(frame.omci_message.entity_id, 0x101)
        self.assertEqual(frame.omci_message.attributes_mask, 0x800)
        self.assertEqual(frame.omci_trailer, 0x28)

    def test_omci_frame_deserialization_with_data(self):
        frame = OmciFrame(self.reference_get_response_raw)
        self.assertEqual(frame.transaction_id, 0)
        self.assertEqual(frame.message_type, 0x29)
        self.assertEqual(frame.omci, 10)
        self.assertEqual(frame.omci_message.success_code, 0x0)
        self.assertEqual(frame.omci_message.entity_class, 0x6)
        self.assertEqual(frame.omci_message.entity_id, 0x101)
        self.assertEqual(frame.omci_message.attributes_mask, 0x800)
        self.assertEqual(frame.omci_trailer, 0x28)

    def test_entity_attribute_deserialization(self):
        pass


class TestSelectMessageGeneration(TestCase):

    def assertGeneratedFrameEquals(self, frame, ref):
        assert isinstance(frame, Packet)
        serialized_hexified_frame = hexify(frame).upper()
        ref = ref.upper()
        if serialized_hexified_frame != ref:
            self.fail('Mismatch:\nReference:\n{}\nGenerated (bad):\n{}'.format(
                ref, serialized_hexified_frame
            ))

    def test_mib_reset_message_serialization(self):
        ref = b'00014F0A000200000000000000000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=1,
            message_type=OmciMibReset.message_id,
            omci_message=OmciMibReset(
                entity_class=OntData.class_id
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_gal_ethernet_profile(self):
        ref = b'0002440A011000010030000000000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=2,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=GalEthernetProfile.class_id,
                entity_id=1,
                data=dict(
                    max_gem_payload_size=48
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_tcont_1(self):
        ref = b'0003480A010680008000040000000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        data = dict(
            alloc_id=0x400
        )
        frame = OmciFrame(
            transaction_id=3,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=Tcont.class_id,
                entity_id=0x8000,
                attributes_mask=Tcont.mask_for(*list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_tcont_2(self):
        ref = b'0004480A010680018000040100000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        data = dict(
            alloc_id=0x401
        )
        frame = OmciFrame(
            transaction_id=4,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=Tcont.class_id,
                entity_id=0x8001,
                attributes_mask=Tcont.mask_for(*list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_8021p_mapper_service_profile(self):
        ref = b'0007440A00828000ffffffffffffffff' \
              b'ffffffffffffffffffff000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=7,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=Ieee8021pMapperServiceProfile.class_id,
                entity_id=0x8000,
                data=dict(
                    tp_pointer=OmciNullPointer,
                    interwork_tp_pointer_for_p_bit_priority_0=OmciNullPointer,
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_mac_bridge_service_profile(self):
        ref = b'000B440A002D02010001008000140002' \
              b'000f0001000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=11,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=MacBridgeServiceProfile.class_id,
                entity_id=0x201,
                data=dict(
                    spanning_tree_ind=False,
                    learning_ind=True,
                    priority=0x8000,
                    max_age=20 * 256,
                    hello_time=2 * 256,
                    forward_delay=15 * 256,
                    unknown_mac_address_discard=True
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_gem_port_network_ctp(self):
        ref = b'000C440A010C01000400800003010000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=12,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=GemPortNetworkCtp.class_id,
                entity_id=0x100,
                data=dict(
                    port_id=0x400,
                    tcont_pointer=0x8000,
                    direction=3,
                    traffic_management_pointer_upstream=0x100
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_multicast_gem_interworking_tp(self):
        ref = b'0011440A011900060104000001000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=17,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=MulticastGemInterworkingTp.class_id,
                entity_id=0x6,
                data=dict(
                    gem_port_network_ctp_pointer=0x104,
                    interworking_option=0,
                    service_profile_pointer=0x1,
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_gem_inteworking_tp(self):
        ref = b'0012440A010A80010100058000000000' \
              b'01000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=18,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=GemInterworkingTp.class_id,
                entity_id=0x8001,
                data=dict(
                    gem_port_network_ctp_pointer=0x100,
                    interworking_option=5,
                    service_profile_pointer=0x8000,
                    interworking_tp_pointer=0x0,
                    gal_profile_pointer=0x1
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_8021p_mapper_service_profile(self):
        ref = b'0016480A008280004000800100000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        data = dict(
            interwork_tp_pointer_for_p_bit_priority_0=0x8001
        )
        frame = OmciFrame(
            transaction_id=22,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=Ieee8021pMapperServiceProfile.class_id,
                entity_id=0x8000,
                attributes_mask=Ieee8021pMapperServiceProfile.mask_for(
                    *list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_mac_bridge_port_configuration_data(self):
        ref = b'001A440A002F21010201020380000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=26,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=MacBridgePortConfigurationData.class_id,
                entity_id=0x2101,
                data=dict(
                    bridge_id_pointer=0x201,
                    port_num=2,
                    tp_type=3,
                    tp_pointer=0x8000
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_vlan_tagging_filter_data(self):
        ref = b'001F440A005421010400000000000000' \
              b'00000000000000000000000000000000' \
              b'100100000000000000000028'
        vlan_filter_list = [0] * 12
        vlan_filter_list[0] = 0x0400

        frame = OmciFrame(
            transaction_id=31,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=VlanTaggingFilterData.class_id,
                entity_id=0x2101,
                data=dict(
                    vlan_filter_list=vlan_filter_list,
                    forward_operation=0x10,
                    number_of_entries=1
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_extended_vlan_tagging_operation_configuration_data(self):
        ref = b'0023440A00AB02020A04010000000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=35,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=
                    ExtendedVlanTaggingOperationConfigurationData.class_id,
                entity_id=0x202,
                data=dict(
                    association_type=10,
                    associated_me_pointer=0x401
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_extended_vlan_tagging_operation_configuration_data(self):
        ref = b'0024480A00AB02023800810081000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        data = dict(
            input_tpid=0x8100,
            output_tpid=0x8100,
            downstream_mode=0,  # inverse of upstream
        )
        frame = OmciFrame(
            transaction_id=36,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=\
                    ExtendedVlanTaggingOperationConfigurationData.class_id,
                entity_id=0x202,
                attributes_mask= \
                    ExtendedVlanTaggingOperationConfigurationData.mask_for(
                        *list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_extended_vlan_tagging_1(self):
        ref = b'0025480A00AB02020400f00000008200' \
              b'5000402f000000082004000000000000' \
              b'000000000000000000000028'
        data = dict(
            received_frame_vlan_tagging_operation_table=\
                VlanTaggingOperation(
                    filter_outer_priority=15,
                    filter_inner_priority=8,
                    filter_inner_vid=1024,
                    filter_inner_tpid_de=5,
                    filter_ether_type=0,
                    treatment_tags_to_remove=1,
                    pad3=2,
                    treatment_outer_priority=15,
                    treatment_inner_priority=8,
                    treatment_inner_vid=1024,
                    treatment_inner_tpid_de=4
                )
        )
        frame = OmciFrame(
            transaction_id=37,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=\
                    ExtendedVlanTaggingOperationConfigurationData.class_id,
                entity_id=0x202,
                attributes_mask= \
                    ExtendedVlanTaggingOperationConfigurationData.mask_for(
                        *list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_set_extended_vlan_tagging_2(self):
        ref = b'0026480A00AB02020400F00000008200' \
              b'd000402f00000008200c000000000000' \
              b'000000000000000000000028'
        data = dict(
            received_frame_vlan_tagging_operation_table=
                VlanTaggingOperation(
                    filter_outer_priority=15,
                    filter_inner_priority=8,
                    filter_inner_vid=1025,
                    filter_inner_tpid_de=5,
                    filter_ether_type=0,
                    treatment_tags_to_remove=1,
                    pad3=2,
                    treatment_outer_priority=15,
                    treatment_inner_priority=8,
                    treatment_inner_vid=1025,
                    treatment_inner_tpid_de=4
                )
        )
        frame = OmciFrame(
            transaction_id=38,
            message_type=OmciSet.message_id,
            omci_message=OmciSet(
                entity_class=
                    ExtendedVlanTaggingOperationConfigurationData.class_id,
                entity_id=0x202,
                attributes_mask=
                    ExtendedVlanTaggingOperationConfigurationData.mask_for(
                        *list(data.keys())),
                data=data
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_create_mac_bridge_port_configuration_data2(self):
        ref = b'0029440A002F02010201010b04010000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=41,
            message_type=OmciCreate.message_id,
            omci_message=OmciCreate(
                entity_class=MacBridgePortConfigurationData.class_id,
                entity_id=0x201,
                data=dict(
                    bridge_id_pointer=0x201,
                    encapsulation_methods=0,
                    port_num=1,
                    port_priority=0,
                    port_path_cost=0,
                    port_spanning_tree_in=0,
                    lan_fcs_ind=0,
                    tp_type=11,
                    tp_pointer=0x401,
                    mac_learning_depth=0
                )
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)
        frame2 = OmciFrame(hex2raw(ref))
        self.assertEqual(frame2, frame)

    def test_mib_upload(self):
        ref = b'00304D0A000200000000000000000000' \
              b'00000000000000000000000000000000' \
              b'000000000000000000000028'
        frame = OmciFrame(
            transaction_id=48,
            message_type=OmciMibUpload.message_id,
            omci_message=OmciMibUpload(
                entity_class=OntData.class_id
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_parse_enh_security_avc(self):
        refs = [
            b"0000110a014c0000008000202020202020202020202020202020202020202020"
            b"2020202020202020000000280be43cf4"
        ]
        for i, data in enumerate(refs):
            frame = OmciFrame(hex2raw(data))
            omci = frame.omci_message
            # frame.show()

    def test_parse_alarm_message(self):
        refs = [
            b"0000100a00050101000000000000000000000000000000000000000000000000"
            b"0000000220000000000000280be43cf4"
        ]
        for i, data in enumerate(refs):
            frame = OmciFrame(hex2raw(data))
            omci = frame.omci_message
            # frame.show()

    def test_parse_results(self):
        refs = [
            b"00001B0a014c0000008000202020202020202020202020202020202020202020"
            b"2020202020202020000000280be43cf4"
        ]
        for i, data in enumerate(refs):
            frame = OmciFrame(hex2raw(data))
            omci = frame.omci_message
            # frame.show()

    def test_parsing_mib_upload_next_responses(self):
        refs = [
            b"00032e0a00020000000200008000000000000000000000000000000000000000"
            b"00000000000000000000002828ce00e2",
            b"00042e0a0002000000050101f0002f2f05202020202020202020202020202020"
            b"202020202000000000000028d4eb4bdf",
            b"00052e0a00020000000501010f80202020202020202020202020202020202020"
            b"2020000000000000000000282dbe4b44",
            b"00062e0a0002000000050104f000303001202020202020202020202020202020"
            b"202020202000000000000028ef1b035b",
            b"00072e0a00020000000501040f80202020202020202020202020202020202020"
            b"202000000000000000000028fec29135",
            b"00082e0a0002000000050180f000f8f801202020202020202020202020202020"
            b"202020202000000000000028fd4e0b07",
            b"00092e0a00020000000501800f80202020202020202020202020202020202020"
            b"2020000000000000000000283306b3c0",
            b"000a2e0a0002000000060101f0002f054252434d123456780000000000000000"
            b"00000000000c000000000028585c2083",
            b"000b2e0a00020000000601010f004252434d0000000000000000000000000000"
            b"0000000000000000000000284f0e82b9",
            b"000c2e0a000200000006010100f8202020202020202020202020202020202020"
            b"202000000000000000000028e68bdb63",
            b"000d2e0a00020000000601010004000000000000000000000000000000000000"
            b"00000000000000000000002857bc2730",
            b"000e2e0a0002000000060104f00030014252434d123456780000000000000000"
            b"00000000000c000000000028afe656f5",
            b"000f2e0a00020000000601040f004252434d0000000000000000000000000000"
            b"000000000000000000000028f8f6db74",
            b"00102e0a000200000006010400f8202020202020202020202020202020202020"
            b"202000000800000000000028064fc177",
            b"00112e0a00020000000601040004000000000000000000000000000000000000"
            b"0000000000000000000000285a5c0841",
            b"00122e0a0002000000060180f000f8014252434d123456780000000000000000"
            b"00000000000c0000000000286826eafe",
            b"00132e0a00020000000601800f004252434d0000000000000000000000000000"
            b"0000000000000000000000281c4b7033",
            b"00142e0a000200000006018000f8202020202020202020202020202020202020"
            b"202000084040000000000028ac144eb3",
            b"00152e0a00020000000601800004000000000000000000000000000000000000"
            b"0000000000000000000000280a81a9a7",
            b"00162e0a0002000000070000f0003530323247574f3236363230303301010100"
            b"0000000000000000000000287ea42d51",
            b"00172e0a0002000000070001f0003530323247574f3236363230303300000100"
            b"000000000000000000000028b17f567f",
            b"00182e0a0002000000830000c000202020202020202020202020202020202020"
            b"2020202020200000000000280e7eebaa",
            b"00192e0a00020000008300002000202020202020202020202020202000000000"
            b"000000000000000000000028a95c03b3",
            b"001a2e0a00020000008300001000000000000000000000000000000000000000"
            b"000000000000000000000028f30515a1",
            b"001b2e0a0002000000850000ffe0000000000000000000000000000000000000"
            b"000000000000000000000028764c18de",
            b"001c2e0a0002000000860001c00000001018aaaa000000000000000000000000"
            b"000000000000000000000028ea220ce0",
            b"001d2e0a00020000008600012000000000000000000000000000000000000000"
            b"000000000000000000000028fbdb571a",
            b"001e2e0a00020000008600011f80000000000000000000000000000000000000"
            b"000000000000000000000028c2682282",
            b"001f2e0a00020000008600010078000000000000000000000000000000000000"
            b"0000000000000000000000289c4809b1",
            b"00202e0a00020000008600010004000000000000000000000000000000000000"
            b"000000000000000000000028d174a7d6",
            b"00212e0a00020000008600010002000000000000000000000000000000000000"
            b"0000000000000000000000288f353976",
            b"00222e0a0002000001000000e0004252434d0000000000000000000000000000"
            b"4252434d123456780000002803bbceb6",
            b"00232e0a00020000010000001f80000000000000000000000000000000000000"
            b"0000000000000000000000281b9674db",
            b"00242e0a00020000010000000040000000000000000000000000000000000000"
            b"000000000000000000000028b1050b9b",
            b"00252e0a00020000010000000038000000000000000000000000000003000000"
            b"0000000000000000000000288266645e",
            b"00262e0a0002000001010000f80042564d344b3030425241303931352d303038"
            b"3300b3000001010000000028837d624f",
            b"00272e0a000200000101000007f8000000010020027c85630016000030000000"
            b"00000000000000000000002896c707e1",
            b"00282e0a0002000001068000e00000ff01010000000000000000000000000000"
            b"00000000000000000000002811acb324",
            b"00292e0a0002000001068001e00000ff01010000000000000000000000000000"
            b"00000000000000000000002823ad6aa9",
            b"002a2e0a0002000001068002e00000ff01010000000000000000000000000000"
            b"000000000000000000000028a290efd9",
            b"002b2e0a0002000001068003e00000ff01010000000000000000000000000000"
            b"000000000000000000000028af893357",
            b"002c2e0a0002000001068004e00000ff01010000000000000000000000000000"
            b"000000000000000000000028901141a3",
            b"002d2e0a0002000001068005e00000ff01010000000000000000000000000000"
            b"000000000000000000000028c4398bcc",
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            b"000000000000000000000028c25ce712",
            b"00fb2e0a0002000001168039f000800700000200000000000000000000000000"
            b"000000000000000000000028b908637e",
            b"00fc2e0a000200000116803af000800700000200000000000000000000000000"
            b"0000000000000000000000285b66e6fa",
            b"00fd2e0a000200000116803bf000800700000200000000000000000000000000"
            b"00000000000000000000002855c10393",
            b"00fe2e0a000200000116803cf000800700000200000000000000000000000000"
            b"0000000000000000000000283e94c57d",
            b"00ff2e0a000200000116803df000800700000200000000000000000000000000"
            b"0000000000000000000000284347e7f0",
            b"01002e0a000200000116803ef000800700000200000000000000000000000000"
            b"000000000000000000000028be66429d",
            b"01012e0a000200000116803ff000800700000200000000000000000000000000"
            b"0000000000000000000000284f7db145",
            b"01022e0a0002000001490401c000000000000000000000000000000000000000"
            b"000000000000000000000028470aa043",
            b"01032e0a00020000014904012000000000000000000000000000000000000000"
            b"000000000000000000000028a6bc6e48",
            b"01042e0a00020000014904011800ffffffff0000000000000000000000000000"
            b"000000000000000000000028f747c739",
        ]
        mask = "%5s %9s %20s %9s %s"
        print()
        print(mask % ("seq", "class_id", "class", "instance", "attributes"))
        for i, data in enumerate(refs):
            frame = OmciFrame(hex2raw(data))
            omci = frame.omci_message
            # frame.show()
            print(mask % (
                str(i),
                str(omci.object_entity_class),
                entity_id_to_class_map[omci.object_entity_class].__name__,
                b'0x%x' % omci.object_entity_id,
                '\n                                               '.join(
                    '%s: %s' % (k, v) for k, v in omci.object_data.items())
            ))

    def test_onu_reboot(self):
        ref = b'0016590a01000000000000000000000000000'\
              b'0000000000000000000000000000000000000'\
              b'00000000000028'

        frame = OmciFrame(
            transaction_id=22,
            message_type=OmciReboot.message_id,
            omci_message=OmciReboot(
                entity_class=OntG.class_id,
                entity_id=0
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_omci_entity_ids(self):
        from pyvoltha.adapters.extensions.omci.omci_entities import entity_classes

        # For Entity Classes that have a Managed Entity ID with Set-By-Create
        # access, verify that the attribute name matches 'managed_entity_id'
        #
        # This is critical for the MIB Synchronizer state machine as it needs
        # to backfill Set-By-Create attributes when it sees a Create response
        # but it needs to ignore the 'managed_entity_id' attribute (by name).

        for entity in entity_classes:
            mei_attr = entity.attributes[0]
            self.assertIsNotNone(mei_attr)
            self.assertTrue(AA.SBC not in mei_attr.access or
                            mei_attr.field.name == 'managed_entity_id')

    def test_get_response_without_error_but_too_big(self):
        # This test is related to a bug that I believe is in the BroadCom
        # ONU stack software, or at least it was seen on both an Alpha and
        # an T&W BCM-based onu.  The IEEE 802.1p Mapper Service Profile ME
        # (#130) sent by the ONUs have a payload of 27 octets based on the
        # Attribute Mask in the encoding.  However, get-response baseline
        # messages have the last 4 octets reserved for failed/errored attribute
        # masks so only 25 octets should be allowed.  Of course the 4 octets
        # are only valid if the status code == 9, but they still should
        # be reserved.
        #
        # This test verifies that we can still parse the 27 octet payload
        # since the first rule of interoperability is to be lenient with
        # what you receive and strict with what you transmit.
        #
        ref = b'017d290a008280020000780000000000000000000000' +\
              b'0000000000000000000000000000' +\
              b'01' +\
              b'02' +\
              b'0000' +\
              b'00000028'
        zeros_24 = b'000000000000000000000000000000000000000000000000'
        bytes_24 = unhexlify(zeros_24)
        attributes = {
            "unmarked_frame_option": 0,         # 1 octet
            "dscp_to_p_bit_mapping": bytes_24,  # 24 octets
            "default_p_bit_marking": 1,         # 1 octet   - This is too much
            "tp_type": 2,                       # 1 octet
        }
        frame = OmciFrame(
            transaction_id=0x017d,
            message_type=OmciGetResponse.message_id,
            omci_message=OmciGetResponse(
                entity_class=Ieee8021pMapperServiceProfile.class_id,
                success_code=0,
                entity_id=0x8002,
                attributes_mask=Ieee8021pMapperServiceProfile.mask_for(*list(attributes.keys())),
                data=attributes
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_get_response_with_errors_max_data(self):
        # First a frame with maximum data used up. This aligns the fields up perfectly
        # with the simplest definition of a Get Response
        ref = b'017d290a008280020900600000000000000000000000' +\
              b'0000000000000000000000000000' +\
              b'0010' +\
              b'0008' +\
              b'00000028'
        zeros_24 = b'000000000000000000000000000000000000000000000000'
        bytes_24 = unhexlify(zeros_24)
        good_attributes = {
            "unmarked_frame_option": 0,         # 1 octet
            "dscp_to_p_bit_mapping": bytes_24,  # 24 octets
        }
        unsupported_attributes = ["default_p_bit_marking"]
        failed_attributes_mask = ["tp_type"]

        the_class = Ieee8021pMapperServiceProfile
        frame = OmciFrame(
            transaction_id=0x017d,
            message_type=OmciGetResponse.message_id,
            omci_message=OmciGetResponse(
                entity_class=the_class.class_id,
                success_code=9,
                entity_id=0x8002,
                attributes_mask=the_class.mask_for(*list(good_attributes.keys())),
                unsupported_attributes_mask=the_class.mask_for(*unsupported_attributes),
                failed_attributes_mask=the_class.mask_for(*failed_attributes_mask),
                data=good_attributes
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

    def test_get_response_with_errors_min_data(self):
        # Next a frame with only a little data used up. This aligns will require
        # the encoder and decoder to skip to the last 8 octets of the data field
        # and encode the failed masks there
        ref = b'017d290a00828002090040' +\
              b'01' + b'00000000000000000000' +\
              b'0000000000000000000000000000' +\
              b'0010' +\
              b'0028' +\
              b'00000028'

        good_attributes = {
            "unmarked_frame_option": 1,         # 1 octet
        }
        unsupported_attributes = ["default_p_bit_marking"]
        failed_attributes_mask = ["dscp_to_p_bit_mapping", "tp_type"]

        the_class = Ieee8021pMapperServiceProfile
        frame = OmciFrame(
            transaction_id=0x017d,
            message_type=OmciGetResponse.message_id,
            omci_message=OmciGetResponse(
                entity_class=the_class.class_id,
                success_code=9,
                entity_id=0x8002,
                attributes_mask=the_class.mask_for(*list(good_attributes.keys())),
                unsupported_attributes_mask=the_class.mask_for(*unsupported_attributes),
                failed_attributes_mask=the_class.mask_for(*failed_attributes_mask),
                data=good_attributes
            )
        )
        self.assertGeneratedFrameEquals(frame, ref)

        # Now test decode of the packet
        decoded = OmciFrame(unhexlify(ref))

        orig_fields = frame.fields['omci_message'].fields
        omci_fields = decoded.fields['omci_message'].fields

        for field in ['entity_class', 'entity_id', 'attributes_mask',
                      'success_code', 'unsupported_attributes_mask',
                      'failed_attributes_mask']:
            self.assertEqual(omci_fields[field], orig_fields[field])

        self.assertEqual(omci_fields['data']['unmarked_frame_option'],
                         orig_fields['data']['unmarked_frame_option'])


if __name__ == '__main__':
    main()