268 lines
8.6 KiB
Python
268 lines
8.6 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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from types import LambdaType
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import pytest
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from bumble.core import BT_BR_EDR_TRANSPORT
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from bumble.device import Connection, Device
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from bumble.host import Host
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from bumble.hci import (
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HCI_ACCEPT_CONNECTION_REQUEST_COMMAND,
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HCI_COMMAND_STATUS_PENDING,
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HCI_CREATE_CONNECTION_COMMAND,
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HCI_SUCCESS,
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Address,
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HCI_Command_Complete_Event,
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HCI_Command_Status_Event,
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HCI_Connection_Complete_Event,
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HCI_Connection_Request_Event,
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HCI_Packet,
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)
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from bumble.gatt import (
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GATT_GENERIC_ACCESS_SERVICE,
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GATT_CHARACTERISTIC_ATTRIBUTE_TYPE,
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GATT_DEVICE_NAME_CHARACTERISTIC,
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GATT_APPEARANCE_CHARACTERISTIC,
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)
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# -----------------------------------------------------------------------------
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# Logging
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# -----------------------------------------------------------------------------
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logger = logging.getLogger(__name__)
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# -----------------------------------------------------------------------------
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class Sink:
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def __init__(self, flow):
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self.flow = flow
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next(self.flow)
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def on_packet(self, packet):
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self.flow.send(packet)
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_device_connect_parallel():
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d0 = Device(host=Host(None, None))
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d1 = Device(host=Host(None, None))
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d2 = Device(host=Host(None, None))
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# enable classic
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d0.classic_enabled = True
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d1.classic_enabled = True
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d2.classic_enabled = True
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# set public addresses
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d0.public_address = Address(
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'F0:F1:F2:F3:F4:F5', address_type=Address.PUBLIC_DEVICE_ADDRESS
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)
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d1.public_address = Address(
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'F5:F4:F3:F2:F1:F0', address_type=Address.PUBLIC_DEVICE_ADDRESS
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)
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d2.public_address = Address(
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'F5:F4:F3:F3:F4:F5', address_type=Address.PUBLIC_DEVICE_ADDRESS
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)
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def d0_flow():
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packet = HCI_Packet.from_bytes((yield))
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assert packet.name == 'HCI_CREATE_CONNECTION_COMMAND'
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assert packet.bd_addr == d1.public_address
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d0.host.on_hci_packet(
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HCI_Command_Status_Event(
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status=HCI_COMMAND_STATUS_PENDING,
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num_hci_command_packets=1,
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command_opcode=HCI_CREATE_CONNECTION_COMMAND,
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)
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)
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d1.host.on_hci_packet(
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HCI_Connection_Request_Event(
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bd_addr=d0.public_address,
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class_of_device=0,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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)
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)
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packet = HCI_Packet.from_bytes((yield))
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assert packet.name == 'HCI_CREATE_CONNECTION_COMMAND'
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assert packet.bd_addr == d2.public_address
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d0.host.on_hci_packet(
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HCI_Command_Status_Event(
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status=HCI_COMMAND_STATUS_PENDING,
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num_hci_command_packets=1,
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command_opcode=HCI_CREATE_CONNECTION_COMMAND,
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)
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)
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d2.host.on_hci_packet(
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HCI_Connection_Request_Event(
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bd_addr=d0.public_address,
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class_of_device=0,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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)
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)
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assert (yield) == None
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def d1_flow():
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packet = HCI_Packet.from_bytes((yield))
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assert packet.name == 'HCI_ACCEPT_CONNECTION_REQUEST_COMMAND'
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d1.host.on_hci_packet(
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HCI_Command_Complete_Event(
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num_hci_command_packets=1,
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command_opcode=HCI_ACCEPT_CONNECTION_REQUEST_COMMAND,
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return_parameters=b"\x00",
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)
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)
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d1.host.on_hci_packet(
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HCI_Connection_Complete_Event(
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status=HCI_SUCCESS,
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connection_handle=0x100,
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bd_addr=d0.public_address,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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encryption_enabled=True,
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)
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)
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d0.host.on_hci_packet(
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HCI_Connection_Complete_Event(
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status=HCI_SUCCESS,
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connection_handle=0x100,
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bd_addr=d1.public_address,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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encryption_enabled=True,
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)
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)
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assert (yield) == None
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def d2_flow():
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packet = HCI_Packet.from_bytes((yield))
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assert packet.name == 'HCI_ACCEPT_CONNECTION_REQUEST_COMMAND'
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d2.host.on_hci_packet(
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HCI_Command_Complete_Event(
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num_hci_command_packets=1,
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command_opcode=HCI_ACCEPT_CONNECTION_REQUEST_COMMAND,
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return_parameters=b"\x00",
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)
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)
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d2.host.on_hci_packet(
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HCI_Connection_Complete_Event(
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status=HCI_SUCCESS,
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connection_handle=0x101,
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bd_addr=d0.public_address,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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encryption_enabled=True,
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)
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)
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d0.host.on_hci_packet(
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HCI_Connection_Complete_Event(
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status=HCI_SUCCESS,
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connection_handle=0x101,
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bd_addr=d2.public_address,
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link_type=HCI_Connection_Complete_Event.ACL_LINK_TYPE,
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encryption_enabled=True,
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)
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)
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assert (yield) == None
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d0.host.set_packet_sink(Sink(d0_flow()))
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d1.host.set_packet_sink(Sink(d1_flow()))
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d2.host.set_packet_sink(Sink(d2_flow()))
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[c01, c02, a10, a20] = await asyncio.gather(
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*[
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asyncio.create_task(
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d0.connect(d1.public_address, transport=BT_BR_EDR_TRANSPORT)
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),
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asyncio.create_task(
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d0.connect(d2.public_address, transport=BT_BR_EDR_TRANSPORT)
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),
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asyncio.create_task(d1.accept(peer_address=d0.public_address)),
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asyncio.create_task(d2.accept()),
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]
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)
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assert type(c01) == Connection
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assert type(c02) == Connection
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assert type(a10) == Connection
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assert type(a20) == Connection
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assert c01.handle == a10.handle and c01.handle == 0x100
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assert c02.handle == a20.handle and c02.handle == 0x101
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# -----------------------------------------------------------------------------
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@pytest.mark.asyncio
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async def test_flush():
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d0 = Device(host=Host(None, None))
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task = d0.abort_on('flush', asyncio.sleep(10000))
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await d0.host.flush()
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try:
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await task
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assert False
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except asyncio.CancelledError:
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pass
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# -----------------------------------------------------------------------------
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def test_gatt_services_with_gas():
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device = Device(host=Host(None, None))
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# there should be one service and two chars, therefore 5 attributes
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assert len(device.gatt_server.attributes) == 5
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assert device.gatt_server.attributes[0].uuid == GATT_GENERIC_ACCESS_SERVICE
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assert device.gatt_server.attributes[1].type == GATT_CHARACTERISTIC_ATTRIBUTE_TYPE
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assert device.gatt_server.attributes[2].uuid == GATT_DEVICE_NAME_CHARACTERISTIC
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assert device.gatt_server.attributes[3].type == GATT_CHARACTERISTIC_ATTRIBUTE_TYPE
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assert device.gatt_server.attributes[4].uuid == GATT_APPEARANCE_CHARACTERISTIC
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# -----------------------------------------------------------------------------
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def test_gatt_services_without_gas():
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device = Device(host=Host(None, None), generic_access_service=False)
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# there should be no services
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assert len(device.gatt_server.attributes) == 0
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# -----------------------------------------------------------------------------
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async def run_test_device():
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await test_device_connect_parallel()
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await test_flush()
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await test_gatt_services_with_gas()
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await test_gatt_services_without_gas()
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# -----------------------------------------------------------------------------
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if __name__ == '__main__':
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logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
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asyncio.run(run_test_device())
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