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from bumble.device import Device
from bumble.gatt import (
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR,
Characteristic,
Descriptor,
Service,
)
from bleak import BleakClient
from tests.integration.conftest import (
configure_and_power_on_bumble_peripheral,
find_ble_device,
)
async def test_read_gatt_descriptor(bumble_peripheral: Device):
"""Reading a GATT descriptor is possible."""
READABLE_DESCRIPTOR_SERVICE_UUID = "0d15eded-4e68-4718-bedf-736847b68e72"
READABLE_DESCRIPTOR_CHARACTERISITC_UUID = "25c614ab-1560-46da-94bc-c146addfc359"
virtual_descriptor = Descriptor(
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR,
Descriptor.READABLE,
"Description".encode(),
)
virtual_characteristic = Characteristic(
READABLE_DESCRIPTOR_CHARACTERISITC_UUID,
Characteristic.Properties.READ,
Characteristic.Permissions.READABLE,
b"",
[virtual_descriptor],
)
await configure_and_power_on_bumble_peripheral(
bumble_peripheral,
services=[Service(READABLE_DESCRIPTOR_SERVICE_UUID, [virtual_characteristic])],
)
device = await find_ble_device(bumble_peripheral)
async with BleakClient(
device, services=[READABLE_DESCRIPTOR_SERVICE_UUID]
) as client:
characteristic = client.services.get_characteristic(
READABLE_DESCRIPTOR_CHARACTERISITC_UUID
)
assert characteristic
descriptor = characteristic.get_descriptor(
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR.to_hex_str()
)
assert descriptor
data = await client.read_gatt_descriptor(descriptor)
assert data == b"Description"
async def test_write_gatt_descriptor(bumble_peripheral: Device):
"""Writing a GATT descriptor is possible."""
WRITABLE_DESCRIPTOR_SERVICE_UUID = "bef6dc41-8986-4c32-b746-6e2b10ca06e0"
WRITABLE_DESCRIPTOR_CHARACTERISITC_UUID = "822afd2f-c2b2-4302-9edb-09850a93b707"
virtual_descriptor = Descriptor(
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR,
Descriptor.WRITEABLE,
b"-----------",
)
virtual_characteristic = Characteristic(
WRITABLE_DESCRIPTOR_CHARACTERISITC_UUID,
Characteristic.Properties.READ,
Characteristic.Permissions.READABLE,
b"",
[virtual_descriptor],
)
await configure_and_power_on_bumble_peripheral(
bumble_peripheral,
services=[Service(WRITABLE_DESCRIPTOR_SERVICE_UUID, [virtual_characteristic])],
)
device = await find_ble_device(bumble_peripheral)
async with BleakClient(
device, services=[WRITABLE_DESCRIPTOR_SERVICE_UUID]
) as client:
characteristic = client.services.get_characteristic(
WRITABLE_DESCRIPTOR_CHARACTERISITC_UUID
)
assert characteristic
descriptor = characteristic.get_descriptor(
GATT_CHARACTERISTIC_USER_DESCRIPTION_DESCRIPTOR.to_hex_str()
)
assert descriptor
await client.write_gatt_descriptor(descriptor, b"Description")
assert virtual_descriptor.value == b"Description" # type: ignore # (missing type hints in bumble)
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