898 lines
27 KiB
Python
898 lines
27 KiB
Python
# Copyright 2021-2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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import asyncio
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import logging
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import os
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import struct
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import pytest
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from bumble.controller import Controller
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from bumble.gatt_client import CharacteristicProxy
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from bumble.link import LocalLink
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from bumble.device import Device, Peer
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from bumble.host import Host
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from bumble.gatt import (
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GATT_BATTERY_LEVEL_CHARACTERISTIC,
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GATT_CLIENT_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR,
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CharacteristicAdapter,
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DelegatedCharacteristicAdapter,
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PackedCharacteristicAdapter,
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MappedCharacteristicAdapter,
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UTF8CharacteristicAdapter,
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Service,
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Characteristic,
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CharacteristicValue,
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Descriptor,
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)
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from bumble.transport import AsyncPipeSink
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from bumble.core import UUID
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from bumble.att import (
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Attribute,
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ATT_EXCHANGE_MTU_REQUEST,
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ATT_ATTRIBUTE_NOT_FOUND_ERROR,
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ATT_PDU,
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ATT_Error_Response,
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ATT_Read_By_Group_Type_Request,
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)
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# -----------------------------------------------------------------------------
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def basic_check(x):
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pdu = x.to_bytes()
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parsed = ATT_PDU.from_bytes(pdu)
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x_str = str(x)
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parsed_str = str(parsed)
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assert x_str == parsed_str
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# -----------------------------------------------------------------------------
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def test_UUID():
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u = UUID.from_16_bits(0x7788)
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assert str(u) == 'UUID-16:7788'
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u = UUID.from_32_bits(0x11223344)
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assert str(u) == 'UUID-32:11223344'
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u = UUID('61A3512C-09BE-4DDC-A6A6-0B03667AAFC6')
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assert str(u) == '61A3512C-09BE-4DDC-A6A6-0B03667AAFC6'
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v = UUID(str(u))
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assert str(v) == '61A3512C-09BE-4DDC-A6A6-0B03667AAFC6'
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w = UUID.from_bytes(v.to_bytes())
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assert str(w) == '61A3512C-09BE-4DDC-A6A6-0B03667AAFC6'
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u1 = UUID.from_16_bits(0x1234)
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b1 = u1.to_bytes(force_128=True)
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u2 = UUID.from_bytes(b1)
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assert u1 == u2
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u3 = UUID.from_16_bits(0x180A)
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assert str(u3) == 'UUID-16:180A (Device Information)'
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# -----------------------------------------------------------------------------
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def test_ATT_Error_Response():
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pdu = ATT_Error_Response(
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request_opcode_in_error=ATT_EXCHANGE_MTU_REQUEST,
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attribute_handle_in_error=0x0000,
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error_code=ATT_ATTRIBUTE_NOT_FOUND_ERROR,
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)
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basic_check(pdu)
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# -----------------------------------------------------------------------------
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def test_ATT_Read_By_Group_Type_Request():
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pdu = ATT_Read_By_Group_Type_Request(
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starting_handle=0x0001,
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ending_handle=0xFFFF,
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attribute_group_type=UUID.from_16_bits(0x2800),
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)
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basic_check(pdu)
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_characteristic_encoding():
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class Foo(Characteristic):
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def encode_value(self, value):
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return bytes([value])
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def decode_value(self, value_bytes):
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return value_bytes[0]
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c = Foo(
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GATT_BATTERY_LEVEL_CHARACTERISTIC,
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Characteristic.READ,
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Characteristic.READABLE,
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123,
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)
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x = c.read_value(None)
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assert x == bytes([123])
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c.write_value(None, bytes([122]))
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assert c.value == 122
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class FooProxy(CharacteristicProxy):
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def __init__(self, characteristic):
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super().__init__(
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characteristic.client,
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characteristic.handle,
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characteristic.end_group_handle,
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characteristic.uuid,
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characteristic.properties,
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)
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def encode_value(self, value):
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return bytes([value])
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def decode_value(self, value_bytes):
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return value_bytes[0]
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[client, server] = LinkedDevices().devices[:2]
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characteristic = Characteristic(
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'FDB159DB-036C-49E3-B3DB-6325AC750806',
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Characteristic.READ | Characteristic.WRITE | Characteristic.NOTIFY,
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Characteristic.READABLE | Characteristic.WRITEABLE,
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bytes([123]),
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)
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service = Service('3A657F47-D34F-46B3-B1EC-698E29B6B829', [characteristic])
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server.add_service(service)
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await client.power_on()
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await server.power_on()
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connection = await client.connect(server.random_address)
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peer = Peer(connection)
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await peer.discover_services()
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await peer.discover_characteristics()
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c = peer.get_characteristics_by_uuid(characteristic.uuid)
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assert len(c) == 1
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c = c[0]
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cp = FooProxy(c)
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v = await cp.read_value()
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assert v == 123
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await cp.write_value(124)
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await async_barrier()
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assert characteristic.value == bytes([124])
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v = await cp.read_value()
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assert v == 124
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await cp.write_value(125, with_response=True)
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await async_barrier()
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assert characteristic.value == bytes([125])
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cd = DelegatedCharacteristicAdapter(c, encode=lambda x: bytes([x // 2]))
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await cd.write_value(100, with_response=True)
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await async_barrier()
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assert characteristic.value == bytes([50])
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last_change = None
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def on_change(value):
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nonlocal last_change
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last_change = value
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await c.subscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change == characteristic.value
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last_change = None
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await server.notify_subscribers(characteristic, value=bytes([125]))
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await async_barrier()
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assert last_change == bytes([125])
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last_change = None
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await c.unsubscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change is None
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await cp.subscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change == characteristic.value[0]
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last_change = None
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await server.notify_subscribers(characteristic, value=bytes([126]))
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await async_barrier()
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assert last_change == 126
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last_change = None
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await cp.unsubscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change is None
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cd = DelegatedCharacteristicAdapter(c, decode=lambda x: x[0])
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await cd.subscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change == characteristic.value[0]
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last_change = None
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await cd.unsubscribe(on_change)
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await server.notify_subscribers(characteristic)
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await async_barrier()
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assert last_change is None
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_attribute_getters():
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[client, server] = LinkedDevices().devices[:2]
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characteristic_uuid = UUID('FDB159DB-036C-49E3-B3DB-6325AC750806')
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characteristic = Characteristic(
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characteristic_uuid,
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Characteristic.READ | Characteristic.WRITE | Characteristic.NOTIFY,
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Characteristic.READABLE | Characteristic.WRITEABLE,
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bytes([123]),
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)
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service_uuid = UUID('3A657F47-D34F-46B3-B1EC-698E29B6B829')
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service = Service(service_uuid, [characteristic])
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server.add_service(service)
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service_attr = server.gatt_server.get_service_attribute(service_uuid)
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assert service_attr
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(
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char_decl_attr,
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char_value_attr,
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) = server.gatt_server.get_characteristic_attributes(
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service_uuid, characteristic_uuid
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)
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assert char_decl_attr and char_value_attr
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desc_attr = server.gatt_server.get_descriptor_attribute(
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service_uuid,
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characteristic_uuid,
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GATT_CLIENT_CHARACTERISTIC_CONFIGURATION_DESCRIPTOR,
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)
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assert desc_attr
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# assert all handles are in expected order
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assert (
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service_attr.handle
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< char_decl_attr.handle
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< char_value_attr.handle
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< desc_attr.handle
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== service_attr.end_group_handle
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)
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# assert characteristic declarations attribute is followed by characteristic value attribute
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assert char_decl_attr.handle + 1 == char_value_attr.handle
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# -----------------------------------------------------------------------------
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def test_CharacteristicAdapter():
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# Check that the CharacteristicAdapter base class is transparent
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v = bytes([1, 2, 3])
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c = Characteristic(
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GATT_BATTERY_LEVEL_CHARACTERISTIC,
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Characteristic.READ,
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Characteristic.READABLE,
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v,
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)
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a = CharacteristicAdapter(c)
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value = a.read_value(None)
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assert value == v
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v = bytes([3, 4, 5])
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a.write_value(None, v)
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assert c.value == v
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# Simple delegated adapter
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a = DelegatedCharacteristicAdapter(
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c, lambda x: bytes(reversed(x)), lambda x: bytes(reversed(x))
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)
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value = a.read_value(None)
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assert value == bytes(reversed(v))
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v = bytes([3, 4, 5])
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a.write_value(None, v)
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assert a.value == bytes(reversed(v))
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# Packed adapter with single element format
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v = 1234
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pv = struct.pack('>H', v)
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c.value = v
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a = PackedCharacteristicAdapter(c, '>H')
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value = a.read_value(None)
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assert value == pv
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c.value = None
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a.write_value(None, pv)
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assert a.value == v
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# Packed adapter with multi-element format
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v1 = 1234
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v2 = 5678
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pv = struct.pack('>HH', v1, v2)
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c.value = (v1, v2)
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a = PackedCharacteristicAdapter(c, '>HH')
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value = a.read_value(None)
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assert value == pv
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c.value = None
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a.write_value(None, pv)
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assert a.value == (v1, v2)
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# Mapped adapter
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v1 = 1234
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v2 = 5678
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pv = struct.pack('>HH', v1, v2)
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mapped = {'v1': v1, 'v2': v2}
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c.value = mapped
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a = MappedCharacteristicAdapter(c, '>HH', ('v1', 'v2'))
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value = a.read_value(None)
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assert value == pv
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c.value = None
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a.write_value(None, pv)
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assert a.value == mapped
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# UTF-8 adapter
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v = 'Hello π'
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ev = v.encode('utf-8')
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c.value = v
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a = UTF8CharacteristicAdapter(c)
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value = a.read_value(None)
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assert value == ev
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c.value = None
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a.write_value(None, ev)
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assert a.value == v
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# -----------------------------------------------------------------------------
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def test_CharacteristicValue():
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b = bytes([1, 2, 3])
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c = CharacteristicValue(read=lambda _: b)
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x = c.read(None)
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assert x == b
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result = []
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c = CharacteristicValue(
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write=lambda connection, value: result.append((connection, value))
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)
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z = object()
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c.write(z, b)
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assert result == [(z, b)]
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# -----------------------------------------------------------------------------
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class LinkedDevices:
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def __init__(self):
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self.connections = [None, None, None]
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self.link = LocalLink()
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self.controllers = [
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Controller('C1', link=self.link),
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Controller('C2', link=self.link),
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Controller('C3', link=self.link),
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]
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self.devices = [
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Device(
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address='F0:F1:F2:F3:F4:F5',
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host=Host(self.controllers[0], AsyncPipeSink(self.controllers[0])),
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),
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Device(
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address='F1:F2:F3:F4:F5:F6',
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host=Host(self.controllers[1], AsyncPipeSink(self.controllers[1])),
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),
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Device(
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address='F2:F3:F4:F5:F6:F7',
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host=Host(self.controllers[2], AsyncPipeSink(self.controllers[2])),
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),
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]
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self.paired = [None, None, None]
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# -----------------------------------------------------------------------------
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async def async_barrier():
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ready = asyncio.get_running_loop().create_future()
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asyncio.get_running_loop().call_soon(ready.set_result, None)
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await ready
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_read_write():
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[client, server] = LinkedDevices().devices[:2]
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characteristic1 = Characteristic(
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'FDB159DB-036C-49E3-B3DB-6325AC750806',
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Characteristic.READ | Characteristic.WRITE,
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Characteristic.READABLE | Characteristic.WRITEABLE,
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)
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def on_characteristic1_write(connection, value):
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characteristic1._last_value = (connection, value)
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characteristic1.on('write', on_characteristic1_write)
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def on_characteristic2_read(connection):
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return bytes(str(connection.peer_address))
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def on_characteristic2_write(connection, value):
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characteristic2._last_value = (connection, value)
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characteristic2 = Characteristic(
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'66DE9057-C848-4ACA-B993-D675644EBB85',
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Characteristic.READ | Characteristic.WRITE,
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Characteristic.READABLE | Characteristic.WRITEABLE,
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CharacteristicValue(
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read=on_characteristic2_read, write=on_characteristic2_write
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),
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)
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service1 = Service(
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'3A657F47-D34F-46B3-B1EC-698E29B6B829', [characteristic1, characteristic2]
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)
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server.add_services([service1])
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await client.power_on()
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await server.power_on()
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connection = await client.connect(server.random_address)
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peer = Peer(connection)
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await peer.discover_services()
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await peer.discover_characteristics()
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c = peer.get_characteristics_by_uuid(characteristic1.uuid)
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assert len(c) == 1
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c1 = c[0]
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c = peer.get_characteristics_by_uuid(characteristic2.uuid)
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assert len(c) == 1
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c2 = c[0]
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v1 = await peer.read_value(c1)
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assert v1 == b''
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b = bytes([1, 2, 3])
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await peer.write_value(c1, b)
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await async_barrier()
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assert characteristic1.value == b
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v1 = await peer.read_value(c1)
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assert v1 == b
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assert type(characteristic1._last_value is tuple)
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assert len(characteristic1._last_value) == 2
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assert str(characteristic1._last_value[0].peer_address) == str(
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client.random_address
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)
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assert characteristic1._last_value[1] == b
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bb = bytes([3, 4, 5, 6])
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characteristic1.value = bb
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v1 = await peer.read_value(c1)
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assert v1 == bb
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await peer.write_value(c2, b)
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await async_barrier()
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assert type(characteristic2._last_value is tuple)
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assert len(characteristic2._last_value) == 2
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assert str(characteristic2._last_value[0].peer_address) == str(
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client.random_address
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)
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assert characteristic2._last_value[1] == b
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_read_write2():
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[client, server] = LinkedDevices().devices[:2]
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v = bytes([0x11, 0x22, 0x33, 0x44])
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characteristic1 = Characteristic(
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'FDB159DB-036C-49E3-B3DB-6325AC750806',
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Characteristic.READ | Characteristic.WRITE,
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Characteristic.READABLE | Characteristic.WRITEABLE,
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value=v,
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)
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service1 = Service('3A657F47-D34F-46B3-B1EC-698E29B6B829', [characteristic1])
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server.add_services([service1])
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await client.power_on()
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await server.power_on()
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connection = await client.connect(server.random_address)
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peer = Peer(connection)
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await peer.discover_services()
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c = peer.get_services_by_uuid(service1.uuid)
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assert len(c) == 1
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s = c[0]
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await s.discover_characteristics()
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c = s.get_characteristics_by_uuid(characteristic1.uuid)
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assert len(c) == 1
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c1 = c[0]
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v1 = await c1.read_value()
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assert v1 == v
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a1 = PackedCharacteristicAdapter(c1, '>I')
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v1 = await a1.read_value()
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|
assert v1 == struct.unpack('>I', v)[0]
|
|
|
|
b = bytes([0x55, 0x66, 0x77, 0x88])
|
|
await a1.write_value(struct.unpack('>I', b)[0])
|
|
await async_barrier()
|
|
assert characteristic1.value == b
|
|
v1 = await a1.read_value()
|
|
assert v1 == struct.unpack('>I', b)[0]
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
@pytest.mark.asyncio
|
|
async def test_subscribe_notify():
|
|
[client, server] = LinkedDevices().devices[:2]
|
|
|
|
characteristic1 = Characteristic(
|
|
'FDB159DB-036C-49E3-B3DB-6325AC750806',
|
|
Characteristic.READ | Characteristic.NOTIFY,
|
|
Characteristic.READABLE,
|
|
bytes([1, 2, 3]),
|
|
)
|
|
|
|
def on_characteristic1_subscription(connection, notify_enabled, indicate_enabled):
|
|
characteristic1._last_subscription = (
|
|
connection,
|
|
notify_enabled,
|
|
indicate_enabled,
|
|
)
|
|
|
|
characteristic1.on('subscription', on_characteristic1_subscription)
|
|
|
|
characteristic2 = Characteristic(
|
|
'66DE9057-C848-4ACA-B993-D675644EBB85',
|
|
Characteristic.READ | Characteristic.INDICATE,
|
|
Characteristic.READABLE,
|
|
bytes([4, 5, 6]),
|
|
)
|
|
|
|
def on_characteristic2_subscription(connection, notify_enabled, indicate_enabled):
|
|
characteristic2._last_subscription = (
|
|
connection,
|
|
notify_enabled,
|
|
indicate_enabled,
|
|
)
|
|
|
|
characteristic2.on('subscription', on_characteristic2_subscription)
|
|
|
|
characteristic3 = Characteristic(
|
|
'AB5E639C-40C1-4238-B9CB-AF41F8B806E4',
|
|
Characteristic.READ | Characteristic.NOTIFY | Characteristic.INDICATE,
|
|
Characteristic.READABLE,
|
|
bytes([7, 8, 9]),
|
|
)
|
|
|
|
def on_characteristic3_subscription(connection, notify_enabled, indicate_enabled):
|
|
characteristic3._last_subscription = (
|
|
connection,
|
|
notify_enabled,
|
|
indicate_enabled,
|
|
)
|
|
|
|
characteristic3.on('subscription', on_characteristic3_subscription)
|
|
|
|
service1 = Service(
|
|
'3A657F47-D34F-46B3-B1EC-698E29B6B829',
|
|
[characteristic1, characteristic2, characteristic3],
|
|
)
|
|
server.add_services([service1])
|
|
|
|
def on_characteristic_subscription(
|
|
connection, characteristic, notify_enabled, indicate_enabled
|
|
):
|
|
server._last_subscription = (
|
|
connection,
|
|
characteristic,
|
|
notify_enabled,
|
|
indicate_enabled,
|
|
)
|
|
|
|
server.on('characteristic_subscription', on_characteristic_subscription)
|
|
|
|
await client.power_on()
|
|
await server.power_on()
|
|
connection = await client.connect(server.random_address)
|
|
peer = Peer(connection)
|
|
|
|
await peer.discover_services()
|
|
await peer.discover_characteristics()
|
|
c = peer.get_characteristics_by_uuid(characteristic1.uuid)
|
|
assert len(c) == 1
|
|
c1 = c[0]
|
|
c = peer.get_characteristics_by_uuid(characteristic2.uuid)
|
|
assert len(c) == 1
|
|
c2 = c[0]
|
|
c = peer.get_characteristics_by_uuid(characteristic3.uuid)
|
|
assert len(c) == 1
|
|
c3 = c[0]
|
|
|
|
c1._called = False
|
|
c1._last_update = None
|
|
|
|
def on_c1_update(value):
|
|
c1._called = True
|
|
c1._last_update = value
|
|
|
|
c1.on('update', on_c1_update)
|
|
await peer.subscribe(c1)
|
|
await async_barrier()
|
|
assert server._last_subscription[1] == characteristic1
|
|
assert server._last_subscription[2]
|
|
assert not server._last_subscription[3]
|
|
assert characteristic1._last_subscription[1]
|
|
assert not characteristic1._last_subscription[2]
|
|
await server.indicate_subscribers(characteristic1)
|
|
await async_barrier()
|
|
assert not c1._called
|
|
await server.notify_subscribers(characteristic1)
|
|
await async_barrier()
|
|
assert c1._called
|
|
assert c1._last_update == characteristic1.value
|
|
|
|
c1._called = False
|
|
c1._last_update = None
|
|
c1_value = characteristic1.value
|
|
await server.notify_subscribers(characteristic1, bytes([0, 1, 2]))
|
|
await async_barrier()
|
|
assert c1._called
|
|
assert c1._last_update == bytes([0, 1, 2])
|
|
assert characteristic1.value == c1_value
|
|
|
|
c1._called = False
|
|
await peer.unsubscribe(c1)
|
|
await server.notify_subscribers(characteristic1)
|
|
assert not c1._called
|
|
|
|
c2._called = False
|
|
c2._last_update = None
|
|
|
|
def on_c2_update(value):
|
|
c2._called = True
|
|
c2._last_update = value
|
|
|
|
await peer.subscribe(c2, on_c2_update)
|
|
await async_barrier()
|
|
await server.notify_subscriber(
|
|
characteristic2._last_subscription[0], characteristic2
|
|
)
|
|
await async_barrier()
|
|
assert not c2._called
|
|
await server.indicate_subscriber(
|
|
characteristic2._last_subscription[0], characteristic2
|
|
)
|
|
await async_barrier()
|
|
assert c2._called
|
|
assert c2._last_update == characteristic2.value
|
|
|
|
c2._called = False
|
|
await peer.unsubscribe(c2, on_c2_update)
|
|
await server.indicate_subscriber(
|
|
characteristic2._last_subscription[0], characteristic2
|
|
)
|
|
await async_barrier()
|
|
assert not c2._called
|
|
|
|
c3._called = False
|
|
c3._called_2 = False
|
|
c3._called_3 = False
|
|
c3._last_update = None
|
|
c3._last_update_2 = None
|
|
c3._last_update_3 = None
|
|
|
|
def on_c3_update(value):
|
|
c3._called = True
|
|
c3._last_update = value
|
|
|
|
def on_c3_update_2(value): # for notify
|
|
c3._called_2 = True
|
|
c3._last_update_2 = value
|
|
|
|
def on_c3_update_3(value): # for indicate
|
|
c3._called_3 = True
|
|
c3._last_update_3 = value
|
|
|
|
c3.on('update', on_c3_update)
|
|
await peer.subscribe(c3, on_c3_update_2)
|
|
await async_barrier()
|
|
await server.notify_subscriber(
|
|
characteristic3._last_subscription[0], characteristic3
|
|
)
|
|
await async_barrier()
|
|
assert c3._called
|
|
assert c3._last_update == characteristic3.value
|
|
assert c3._called_2
|
|
assert c3._last_update_2 == characteristic3.value
|
|
assert not c3._called_3
|
|
|
|
c3._called = False
|
|
c3._called_2 = False
|
|
c3._called_3 = False
|
|
await peer.unsubscribe(c3)
|
|
await peer.subscribe(c3, on_c3_update_3, prefer_notify=False)
|
|
await async_barrier()
|
|
characteristic3.value = bytes([1, 2, 3])
|
|
await server.indicate_subscriber(
|
|
characteristic3._last_subscription[0], characteristic3
|
|
)
|
|
await async_barrier()
|
|
assert c3._called
|
|
assert c3._last_update == characteristic3.value
|
|
assert not c3._called_2
|
|
assert c3._called_3
|
|
assert c3._last_update_3 == characteristic3.value
|
|
|
|
c3._called = False
|
|
c3._called_2 = False
|
|
c3._called_3 = False
|
|
await peer.unsubscribe(c3)
|
|
await server.notify_subscriber(
|
|
characteristic3._last_subscription[0], characteristic3
|
|
)
|
|
await server.indicate_subscriber(
|
|
characteristic3._last_subscription[0], characteristic3
|
|
)
|
|
await async_barrier()
|
|
assert not c3._called
|
|
assert not c3._called_2
|
|
assert not c3._called_3
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
@pytest.mark.asyncio
|
|
async def test_mtu_exchange():
|
|
[d1, d2, d3] = LinkedDevices().devices[:3]
|
|
|
|
d3.gatt_server.max_mtu = 100
|
|
|
|
d3_connections = []
|
|
|
|
@d3.on('connection')
|
|
def on_d3_connection(connection):
|
|
d3_connections.append(connection)
|
|
|
|
await d1.power_on()
|
|
await d2.power_on()
|
|
await d3.power_on()
|
|
|
|
d1_connection = await d1.connect(d3.random_address)
|
|
assert len(d3_connections) == 1
|
|
assert d3_connections[0] is not None
|
|
|
|
d2_connection = await d2.connect(d3.random_address)
|
|
assert len(d3_connections) == 2
|
|
assert d3_connections[1] is not None
|
|
|
|
d1_peer = Peer(d1_connection)
|
|
d2_peer = Peer(d2_connection)
|
|
|
|
d1_client_mtu = await d1_peer.request_mtu(220)
|
|
assert d1_client_mtu == 100
|
|
assert d1_connection.att_mtu == 100
|
|
|
|
d2_client_mtu = await d2_peer.request_mtu(50)
|
|
assert d2_client_mtu == 50
|
|
assert d2_connection.att_mtu == 50
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
def test_char_property_to_string():
|
|
# single
|
|
assert Characteristic.property_name(0x01) == "BROADCAST"
|
|
assert Characteristic.property_name(Characteristic.BROADCAST) == "BROADCAST"
|
|
|
|
# double
|
|
assert Characteristic.properties_as_string(0x03) == "BROADCAST,READ"
|
|
assert (
|
|
Characteristic.properties_as_string(
|
|
Characteristic.BROADCAST | Characteristic.READ
|
|
)
|
|
== "BROADCAST,READ"
|
|
)
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
def test_char_property_string_to_type():
|
|
# single
|
|
assert Characteristic.string_to_properties("BROADCAST") == Characteristic.BROADCAST
|
|
|
|
# double
|
|
assert (
|
|
Characteristic.string_to_properties("BROADCAST,READ")
|
|
== Characteristic.BROADCAST | Characteristic.READ
|
|
)
|
|
assert (
|
|
Characteristic.string_to_properties("READ,BROADCAST")
|
|
== Characteristic.BROADCAST | Characteristic.READ
|
|
)
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
@pytest.mark.asyncio
|
|
async def test_server_string():
|
|
[_, server] = LinkedDevices().devices[:2]
|
|
|
|
characteristic = Characteristic(
|
|
'FDB159DB-036C-49E3-B3DB-6325AC750806',
|
|
Characteristic.READ | Characteristic.WRITE | Characteristic.NOTIFY,
|
|
Characteristic.READABLE | Characteristic.WRITEABLE,
|
|
bytes([123]),
|
|
)
|
|
|
|
service = Service('3A657F47-D34F-46B3-B1EC-698E29B6B829', [characteristic])
|
|
server.add_service(service)
|
|
|
|
assert (
|
|
str(server.gatt_server)
|
|
== """Service(handle=0x0001, end=0x0005, uuid=UUID-16:1800 (Generic Access))
|
|
CharacteristicDeclaration(handle=0x0002, value_handle=0x0003, uuid=UUID-16:2A00 (Device Name), properties=READ)
|
|
Characteristic(handle=0x0003, end=0x0003, uuid=UUID-16:2A00 (Device Name), properties=READ)
|
|
CharacteristicDeclaration(handle=0x0004, value_handle=0x0005, uuid=UUID-16:2A01 (Appearance), properties=READ)
|
|
Characteristic(handle=0x0005, end=0x0005, uuid=UUID-16:2A01 (Appearance), properties=READ)
|
|
Service(handle=0x0006, end=0x0009, uuid=3A657F47-D34F-46B3-B1EC-698E29B6B829)
|
|
CharacteristicDeclaration(handle=0x0007, value_handle=0x0008, uuid=FDB159DB-036C-49E3-B3DB-6325AC750806, properties=READ,WRITE,NOTIFY)
|
|
Characteristic(handle=0x0008, end=0x0009, uuid=FDB159DB-036C-49E3-B3DB-6325AC750806, properties=READ,WRITE,NOTIFY)
|
|
Descriptor(handle=0x0009, type=UUID-16:2902 (Client Characteristic Configuration), value=0000)"""
|
|
)
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
async def async_main():
|
|
await test_read_write()
|
|
await test_read_write2()
|
|
await test_subscribe_notify()
|
|
await test_characteristic_encoding()
|
|
await test_mtu_exchange()
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
def test_attribute_string_to_permissions():
|
|
assert Attribute.string_to_permissions('READABLE') == 1
|
|
assert Attribute.string_to_permissions('WRITEABLE') == 2
|
|
assert Attribute.string_to_permissions('READABLE,WRITEABLE') == 3
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
def test_charracteristic_permissions():
|
|
characteristic = Characteristic(
|
|
'FDB159DB-036C-49E3-B3DB-6325AC750806',
|
|
Characteristic.READ | Characteristic.WRITE | Characteristic.NOTIFY,
|
|
'READABLE,WRITEABLE',
|
|
)
|
|
assert characteristic.permissions == 3
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
def test_descriptor_permissions():
|
|
descriptor = Descriptor('2902', 'READABLE,WRITEABLE')
|
|
assert descriptor.permissions == 3
|
|
|
|
|
|
# -----------------------------------------------------------------------------
|
|
if __name__ == '__main__':
|
|
logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
|
|
test_UUID()
|
|
test_ATT_Error_Response()
|
|
test_ATT_Read_By_Group_Type_Request()
|
|
test_CharacteristicValue()
|
|
test_CharacteristicAdapter()
|
|
asyncio.run(async_main())
|