core/tests/components/rfxtrx/test_config_flow.py

938 lines
28 KiB
Python

"""Test the Rfxtrx config flow."""
import os
from unittest.mock import MagicMock, patch, sentinel
from RFXtrx import RFXtrxTransportError
import serial.tools.list_ports
from homeassistant import config_entries
from homeassistant.components.rfxtrx import DOMAIN, config_flow
from homeassistant.const import STATE_UNKNOWN
from homeassistant.core import HomeAssistant
from homeassistant.data_entry_flow import FlowResultType
from homeassistant.helpers import device_registry as dr, entity_registry as er
from tests.common import MockConfigEntry
SOME_PROTOCOLS = ["ac", "arc"]
def com_port():
"""Mock of a serial port."""
port = serial.tools.list_ports_common.ListPortInfo("/dev/ttyUSB1234")
port.serial_number = "1234"
port.manufacturer = "Virtual serial port"
port.device = "/dev/ttyUSB1234"
port.description = "Some serial port"
return port
async def start_options_flow(
hass: HomeAssistant, entry: MockConfigEntry
) -> config_entries.ConfigFlowResult:
"""Start the options flow with the entry under test."""
entry.add_to_hass(hass)
await hass.config_entries.async_setup(entry.entry_id)
await hass.async_block_till_done()
return await hass.config_entries.options.async_init(entry.entry_id)
async def test_setup_network(transport_mock, hass: HomeAssistant) -> None:
"""Test we can setup network."""
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Network"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_network"
assert result["errors"] == {}
with patch("homeassistant.components.rfxtrx.async_setup_entry", return_value=True):
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"host": "10.10.0.1", "port": 1234}
)
assert result["type"] is FlowResultType.CREATE_ENTRY
assert result["title"] == "RFXTRX"
assert result["data"] == {
"host": "10.10.0.1",
"port": 1234,
"device": None,
"automatic_add": False,
"devices": {},
}
@patch("serial.tools.list_ports.comports", return_value=[com_port()])
async def test_setup_serial(com_mock, transport_mock, hass: HomeAssistant) -> None:
"""Test we can setup serial."""
port = com_port()
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Serial"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial"
assert result["errors"] == {}
with patch("homeassistant.components.rfxtrx.async_setup_entry", return_value=True):
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": port.device}
)
assert result["type"] is FlowResultType.CREATE_ENTRY
assert result["title"] == "RFXTRX"
assert result["data"] == {
"host": None,
"port": None,
"device": port.device,
"automatic_add": False,
"devices": {},
}
@patch("serial.tools.list_ports.comports", return_value=[com_port()])
async def test_setup_serial_manual(
com_mock, transport_mock, hass: HomeAssistant
) -> None:
"""Test we can setup serial with manual entry."""
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Serial"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": "Enter Manually"}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial_manual_path"
assert result["errors"] == {}
with patch("homeassistant.components.rfxtrx.async_setup_entry", return_value=True):
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": "/dev/ttyUSB0"}
)
assert result["type"] is FlowResultType.CREATE_ENTRY
assert result["title"] == "RFXTRX"
assert result["data"] == {
"host": None,
"port": None,
"device": "/dev/ttyUSB0",
"automatic_add": False,
"devices": {},
}
async def test_setup_network_fail(transport_mock, hass: HomeAssistant) -> None:
"""Test we can setup network."""
transport_mock.return_value.connect.side_effect = RFXtrxTransportError
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Network"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_network"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"host": "10.10.0.1", "port": 1234}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_network"
assert result["errors"] == {"base": "cannot_connect"}
@patch("serial.tools.list_ports.comports", return_value=[com_port()])
async def test_setup_serial_fail(com_mock, transport_mock, hass: HomeAssistant) -> None:
"""Test setup serial failed connection."""
transport_mock.return_value.connect.side_effect = RFXtrxTransportError
port = com_port()
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Serial"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": port.device}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial"
assert result["errors"] == {"base": "cannot_connect"}
@patch("serial.tools.list_ports.comports", return_value=[com_port()])
async def test_setup_serial_manual_fail(
com_mock, transport_mock, hass: HomeAssistant
) -> None:
"""Test setup serial failed connection."""
transport_mock.return_value.connect.side_effect = RFXtrxTransportError
result = await hass.config_entries.flow.async_init(
DOMAIN, context={"source": config_entries.SOURCE_USER}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "user"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"],
{"type": "Serial"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": "Enter Manually"}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial_manual_path"
assert result["errors"] == {}
result = await hass.config_entries.flow.async_configure(
result["flow_id"], {"device": "/dev/ttyUSB0"}
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "setup_serial_manual_path"
assert result["errors"] == {"base": "cannot_connect"}
async def test_options_global(hass: HomeAssistant) -> None:
"""Test if we can set global options."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"protocols": None,
"devices": {},
},
unique_id=DOMAIN,
)
with patch("homeassistant.components.rfxtrx.async_setup_entry", return_value=True):
result = await start_options_flow(hass, entry)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={"automatic_add": True, "protocols": SOME_PROTOCOLS},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert entry.data["automatic_add"]
assert not set(entry.data["protocols"]) ^ set(SOME_PROTOCOLS)
async def test_no_protocols(hass: HomeAssistant) -> None:
"""Test we set protocols to None if none are selected."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": True,
"protocols": SOME_PROTOCOLS,
"devices": {},
},
unique_id=DOMAIN,
)
with patch("homeassistant.components.rfxtrx.async_setup_entry", return_value=True):
result = await start_options_flow(hass, entry)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={"automatic_add": False, "protocols": []},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert not entry.data["automatic_add"]
assert entry.data["protocols"] is None
async def test_options_add_device(hass: HomeAssistant) -> None:
"""Test we can add a device."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"devices": {},
},
unique_id=DOMAIN,
)
result = await start_options_flow(hass, entry)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
# Try with invalid event code
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={"automatic_add": True, "event_code": "1234"},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
assert result["errors"]
assert result["errors"]["event_code"] == "invalid_event_code"
# Try with valid event code
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": True,
"event_code": "0b1100cd0213c7f230010f71",
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"], user_input={}
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert entry.data["automatic_add"]
assert entry.data["devices"]["0b1100cd0213c7f230010f71"]
assert "delay_off" not in entry.data["devices"]["0b1100cd0213c7f230010f71"]
state = hass.states.get("binary_sensor.ac_213c7f2_48")
assert state
assert state.state == STATE_UNKNOWN
assert state.attributes.get("friendly_name") == "AC 213c7f2:48"
async def test_options_add_duplicate_device(hass: HomeAssistant) -> None:
"""Test we can add a device."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"debug": False,
"automatic_add": False,
"devices": {"0b1100cd0213c7f230010f71": {}},
},
unique_id=DOMAIN,
)
entry.add_to_hass(hass)
result = await hass.config_entries.options.async_init(entry.entry_id)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": True,
"event_code": "0b1100cd0213c7f230010f71",
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
assert result["errors"]
assert result["errors"]["event_code"] == "already_configured_device"
async def test_options_replace_sensor_device(
hass: HomeAssistant,
device_registry: dr.DeviceRegistry,
entity_registry: er.EntityRegistry,
) -> None:
"""Test we can replace a sensor device."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"devices": {
"0a520101f00400e22d0189": {"device_id": ["52", "1", "f0:04"]},
"0a520105230400c3260279": {"device_id": ["52", "1", "23:04"]},
},
},
unique_id=DOMAIN,
)
await start_options_flow(hass, entry)
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_signal_strength"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_battery"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_humidity"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_humidity_status"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_temperature"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_signal_strength"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_battery"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_humidity"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_humidity_status"
)
assert state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_temperature"
)
assert state
device_entries = dr.async_entries_for_config_entry(device_registry, entry.entry_id)
old_device = next(
(
elem.id
for elem in device_entries
if next(iter(elem.identifiers))[1:] == ("52", "1", "f0:04")
),
None,
)
new_device = next(
(
elem.id
for elem in device_entries
if next(iter(elem.identifiers))[1:] == ("52", "1", "23:04")
),
None,
)
result = await hass.config_entries.options.async_init(entry.entry_id)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": False,
"device": old_device,
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"replace_device": new_device,
},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
entry = entity_registry.async_get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_signal_strength"
)
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_humidity"
)
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_humidity_status"
)
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_battery"
)
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_f0_04_temperature"
)
assert entry
assert entry.device_id == new_device
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_signal_strength"
)
assert not state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_battery"
)
assert not state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_humidity"
)
assert not state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_humidity_status"
)
assert not state
state = hass.states.get(
"sensor.thgn122_123_thgn132_thgr122_228_238_268_23_04_temperature"
)
assert not state
async def test_options_replace_control_device(
hass: HomeAssistant,
device_registry: dr.DeviceRegistry,
entity_registry: er.EntityRegistry,
) -> None:
"""Test we can replace a control device."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"devices": {
"0b1100100118cdea02010f70": {
"device_id": ["11", "0", "118cdea:2"],
},
"0b1100101118cdea02010f70": {
"device_id": ["11", "0", "1118cdea:2"],
},
},
},
unique_id=DOMAIN,
)
await start_options_flow(hass, entry)
state = hass.states.get("binary_sensor.ac_118cdea_2")
assert state
state = hass.states.get("sensor.ac_118cdea_2_signal_strength")
assert state
state = hass.states.get("switch.ac_118cdea_2")
assert state
state = hass.states.get("binary_sensor.ac_1118cdea_2")
assert state
state = hass.states.get("sensor.ac_1118cdea_2_signal_strength")
assert state
state = hass.states.get("switch.ac_1118cdea_2")
assert state
device_entries = dr.async_entries_for_config_entry(device_registry, entry.entry_id)
old_device = next(
(
elem.id
for elem in device_entries
if next(iter(elem.identifiers))[1:] == ("11", "0", "118cdea:2")
),
None,
)
new_device = next(
(
elem.id
for elem in device_entries
if next(iter(elem.identifiers))[1:] == ("11", "0", "1118cdea:2")
),
None,
)
result = await hass.config_entries.options.async_init(entry.entry_id)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": False,
"device": old_device,
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"replace_device": new_device,
},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
entry = entity_registry.async_get("binary_sensor.ac_118cdea_2")
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get("sensor.ac_118cdea_2_signal_strength")
assert entry
assert entry.device_id == new_device
entry = entity_registry.async_get("switch.ac_118cdea_2")
assert entry
assert entry.device_id == new_device
state = hass.states.get("binary_sensor.ac_1118cdea_2")
assert not state
state = hass.states.get("sensor.ac_1118cdea_2_signal_strength")
assert not state
state = hass.states.get("switch.ac_1118cdea_2")
assert not state
async def test_options_add_and_configure_device(
hass: HomeAssistant, device_registry: dr.DeviceRegistry
) -> None:
"""Test we can add a device."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"devices": {},
},
unique_id=DOMAIN,
)
result = await start_options_flow(hass, entry)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": True,
"event_code": "0913000022670e013970",
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"data_bits": 4,
"off_delay": "abcdef",
"command_on": "xyz",
"command_off": "xyz",
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
assert result["errors"]
assert result["errors"]["off_delay"] == "invalid_input_off_delay"
assert result["errors"]["command_on"] == "invalid_input_2262_on"
assert result["errors"]["command_off"] == "invalid_input_2262_off"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"data_bits": 4,
"command_on": "0xE",
"command_off": "0x7",
"off_delay": "9",
},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert entry.data["automatic_add"]
assert entry.data["devices"]["0913000022670e013970"]
assert entry.data["devices"]["0913000022670e013970"]["off_delay"] == 9
state = hass.states.get("binary_sensor.pt2262_22670e")
assert state
assert state.state == STATE_UNKNOWN
assert state.attributes.get("friendly_name") == "PT2262 22670e"
device_entries = dr.async_entries_for_config_entry(device_registry, entry.entry_id)
assert device_entries[0].id
result = await hass.config_entries.options.async_init(entry.entry_id)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": False,
"device": device_entries[0].id,
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"data_bits": 4,
"command_on": "0xE",
"command_off": "0x7",
},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert entry.data["devices"]["0913000022670e013970"]
assert "delay_off" not in entry.data["devices"]["0913000022670e013970"]
async def test_options_configure_rfy_cover_device(
hass: HomeAssistant, device_registry: dr.DeviceRegistry
) -> None:
"""Test we can configure the venetion blind mode of an Rfy cover."""
entry = MockConfigEntry(
domain=DOMAIN,
data={
"host": None,
"port": None,
"device": "/dev/tty123",
"automatic_add": False,
"devices": {},
},
unique_id=DOMAIN,
)
result = await start_options_flow(hass, entry)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": True,
"event_code": "0C1a0000010203010000000000",
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"venetian_blind_mode": "EU",
},
)
await hass.async_block_till_done()
assert (
entry.data["devices"]["0C1a0000010203010000000000"]["venetian_blind_mode"]
== "EU"
)
assert isinstance(
entry.data["devices"]["0C1a0000010203010000000000"]["device_id"], list
)
device_entries = dr.async_entries_for_config_entry(device_registry, entry.entry_id)
assert device_entries[0].id
result = await hass.config_entries.options.async_init(entry.entry_id)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "prompt_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"automatic_add": False,
"device": device_entries[0].id,
},
)
assert result["type"] is FlowResultType.FORM
assert result["step_id"] == "set_device_options"
result = await hass.config_entries.options.async_configure(
result["flow_id"],
user_input={
"venetian_blind_mode": "EU",
},
)
assert result["type"] is FlowResultType.CREATE_ENTRY
await hass.async_block_till_done()
assert (
entry.data["devices"]["0C1a0000010203010000000000"]["venetian_blind_mode"]
== "EU"
)
assert isinstance(
entry.data["devices"]["0C1a0000010203010000000000"]["device_id"], list
)
def test_get_serial_by_id_no_dir() -> None:
"""Test serial by id conversion if there's no /dev/serial/by-id."""
p1 = patch("os.path.isdir", MagicMock(return_value=False))
p2 = patch("os.scandir")
with p1 as is_dir_mock, p2 as scan_mock:
res = config_flow.get_serial_by_id(sentinel.path)
assert res is sentinel.path
assert is_dir_mock.call_count == 1
assert scan_mock.call_count == 0
def test_get_serial_by_id() -> None:
"""Test serial by id conversion."""
def _realpath(path):
if path is sentinel.matched_link:
return sentinel.path
return sentinel.serial_link_path
with (
patch("os.path.isdir", MagicMock(return_value=True)) as is_dir_mock,
patch("os.scandir") as scan_mock,
patch("os.path.realpath", side_effect=_realpath),
):
res = config_flow.get_serial_by_id(sentinel.path)
assert res is sentinel.path
assert is_dir_mock.call_count == 1
assert scan_mock.call_count == 1
entry1 = MagicMock(spec_set=os.DirEntry)
entry1.is_symlink.return_value = True
entry1.path = sentinel.some_path
entry2 = MagicMock(spec_set=os.DirEntry)
entry2.is_symlink.return_value = False
entry2.path = sentinel.other_path
entry3 = MagicMock(spec_set=os.DirEntry)
entry3.is_symlink.return_value = True
entry3.path = sentinel.matched_link
scan_mock.return_value = [entry1, entry2, entry3]
res = config_flow.get_serial_by_id(sentinel.path)
assert res is sentinel.matched_link
assert is_dir_mock.call_count == 2
assert scan_mock.call_count == 2