Remove mock_feetech sdk & add feetech new tests

This commit is contained in:
Simon Alibert 2025-03-20 14:00:10 +01:00
parent a15767aff1
commit bc020ee0a4
2 changed files with 174 additions and 173 deletions

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@ -1,151 +0,0 @@
# Copyright 2024 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ruff: noqa: N802, E741
"""
Mocked classes and functions from scservo_sdk to allow for testing FeetechMotorsBus code.
Warning: These mocked versions are minimalist. They do not exactly mock every behaviors
from the original classes and functions (e.g. return types might be None instead of boolean).
"""
DEFAULT_BAUDRATE = 1_000_000
COMM_SUCCESS = 0 # tx or rx packet communication success
def convert_to_bytes(value, bytes):
# TODO(rcadene): remove need to mock `convert_to_bytes` by implemented the inverse transform
# `convert_bytes_to_value`
del bytes # unused
return value
def get_default_motor_values(motor_index):
return {
# Key (int) are from SCS_SERIES_CONTROL_TABLE
5: motor_index, # ID
6: DEFAULT_BAUDRATE, # Baud_rate
10: 0, # Drive_Mode
21: 32, # P_Coefficient
22: 32, # D_Coefficient
23: 0, # I_Coefficient
40: 0, # Torque_Enable
41: 254, # Acceleration
31: -2047, # Offset
33: 0, # Mode
55: 1, # Lock
# Set 2560 since calibration values for Aloha gripper is between start_pos=2499 and end_pos=3144
# For other joints, 2560 will be autocorrected to be in calibration range
56: 2560, # Present_Position
58: 0, # Present_Speed
69: 0, # Present_Current
85: 150, # Maximum_Acceleration
}
# Macro for Control Table Value
def SCS_MAKEWORD(a, b):
return (a & 0xFF) | ((b & 0xFF) << 8)
def SCS_MAKEDWORD(a, b):
return (a & 0xFFFF) | (b & 0xFFFF) << 16
def SCS_LOWORD(l):
return l & 0xFFFF
def SCS_HIWORD(l):
return (l >> 16) & 0xFFFF
def SCS_LOBYTE(w):
return w & 0xFF
def SCS_HIBYTE(w):
return (w >> 8) & 0xFF
class PortHandler:
def __init__(self, port):
self.port = port
# factory default baudrate
self.baudrate = DEFAULT_BAUDRATE
self.ser = SerialMock()
def openPort(self): # noqa: N802
return True
def closePort(self): # noqa: N802
pass
def setPacketTimeoutMillis(self, timeout_ms): # noqa: N802
del timeout_ms # unused
def getBaudRate(self): # noqa: N802
return self.baudrate
def setBaudRate(self, baudrate): # noqa: N802
self.baudrate = baudrate
class PacketHandler:
def __init__(self, protocol_version):
del protocol_version # unused
# Use packet_handler.data to communicate across Read and Write
self.data = {}
class GroupSyncRead:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
def addParam(self, motor_index): # noqa: N802
# Initialize motor default values
if motor_index not in self.packet_handler.data:
self.packet_handler.data[motor_index] = get_default_motor_values(motor_index)
def txRxPacket(self): # noqa: N802
return COMM_SUCCESS
def getData(self, index, address, bytes): # noqa: N802
return self.packet_handler.data[index][address]
class GroupSyncWrite:
def __init__(self, port_handler, packet_handler, address, bytes):
self.packet_handler = packet_handler
self.address = address
def addParam(self, index, data): # noqa: N802
if index not in self.packet_handler.data:
self.packet_handler.data[index] = get_default_motor_values(index)
self.changeParam(index, data)
def txPacket(self): # noqa: N802
return COMM_SUCCESS
def changeParam(self, index, data): # noqa: N802
self.packet_handler.data[index][self.address] = data
class SerialMock:
def reset_output_buffer(self):
pass
def reset_input_buffer(self):
pass

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@ -2,43 +2,195 @@ import sys
from unittest.mock import patch from unittest.mock import patch
import pytest import pytest
import scservo_sdk as scs
from lerobot.common.motors.feetech import FeetechMotorsBus from lerobot.common.motors.feetech import FeetechMotorsBus
from tests.mocks import mock_scservo_sdk from tests.mocks.mock_feetech import MockMotors, MockPortHandler
@pytest.fixture(autouse=True) @pytest.fixture(autouse=True)
def patch_scservo_sdk(): def patch_port_handler():
with patch.dict(sys.modules, {"scservo_sdk": mock_scservo_sdk}): if sys.platform == "darwin":
with patch.object(scs, "PortHandler", MockPortHandler):
yield
else:
yield yield
def test_patch_sdk(): @pytest.mark.skipif(sys.platform != "darwin", reason=f"No patching needed on {sys.platform=}")
assert "scservo_sdk" in sys.modules # Should be patched def test_autouse_patch():
assert sys.modules["scservo_sdk"] is mock_scservo_sdk # Should match the mock """Ensures that the autouse fixture correctly patches scs.PortHandler with MockPortHandler."""
assert scs.PortHandler is MockPortHandler
@pytest.mark.parametrize(
"value, n_bytes, expected",
[
(0x12, 1, [0x12]),
(0x1234, 2, [0x34, 0x12]),
(0x12345678, 4, [0x78, 0x56, 0x34, 0x12]),
(0, 1, [0x00]),
(0, 2, [0x00, 0x00]),
(0, 4, [0x00, 0x00, 0x00, 0x00]),
(255, 1, [0xFF]),
(65535, 2, [0xFF, 0xFF]),
(4294967295, 4, [0xFF, 0xFF, 0xFF, 0xFF]),
],
ids=[
"1 byte",
"2 bytes",
"4 bytes",
"0 with 1 byte",
"0 with 2 bytes",
"0 with 4 bytes",
"max single byte",
"max two bytes",
"max four bytes",
],
) # fmt: skip
def test_split_int_bytes(value, n_bytes, expected):
assert FeetechMotorsBus.split_int_bytes(value, n_bytes) == expected
def test_split_int_bytes_invalid_n_bytes():
with pytest.raises(NotImplementedError):
FeetechMotorsBus.split_int_bytes(100, 3)
def test_split_int_bytes_negative_numbers():
with pytest.raises(ValueError):
neg = FeetechMotorsBus.split_int_bytes(-1, 1)
print(neg)
def test_split_int_bytes_large_number():
with pytest.raises(ValueError):
FeetechMotorsBus.split_int_bytes(2**32, 4) # 4-byte max is 0xFFFFFFFF
def test_abc_implementation(): def test_abc_implementation():
# Instantiation should raise an error if the class doesn't implements abstract methods/properties """Instantiation should raise an error if the class doesn't implement abstract methods/properties."""
FeetechMotorsBus(port="/dev/dummy-port", motors={"dummy": (1, "sts3215")}) FeetechMotorsBus(port="/dev/dummy-port", motors={"dummy": (1, "sts3215")})
def test_configure_motors_all_ids_1(): @pytest.mark.parametrize(
# see SCS_SERIES_BAUDRATE_TABLE "motors",
smaller_baudrate = 19_200 [
smaller_baudrate_value = 7 None,
[1, 2, 3],
# This test expect the configuration was already correct. ["dummy_1", "dummy_2", "dummy_3"],
motors_bus = FeetechMotorsBus(port="/dev/dummy-port", motors={"dummy": (1, "sts3215")}) [1, "dummy_2", 3],
],
ids=["None", "by ids", "by names", "mixed"],
)
def test_read_all_motors(motors):
mock_motors = MockMotors([1, 2, 3])
positions = [1337, 42, 4016]
mock_motors.build_all_motors_stub("Present_Position", return_values=positions)
motors_bus = FeetechMotorsBus(
port=mock_motors.port,
motors={
"dummy_1": (1, "sts3215"),
"dummy_2": (2, "sts3215"),
"dummy_3": (3, "sts3215"),
},
)
motors_bus.connect() motors_bus.connect()
motors_bus.write("Baud_Rate", [smaller_baudrate_value] * len(motors_bus))
motors_bus.set_baudrate(smaller_baudrate) pos_dict = motors_bus.read("Present_Position", motors=motors)
motors_bus.write("ID", [1] * len(motors_bus))
del motors_bus
# Test configure assert mock_motors.stubs["SyncRead_Present_Position_all"].called
motors_bus = FeetechMotorsBus(port="/dev/dummy-port", motors={"dummy": (1, "sts3215")}) assert all(returned_pos == pos for returned_pos, pos in zip(pos_dict.values(), positions, strict=True))
assert set(pos_dict) == {"dummy_1", "dummy_2", "dummy_3"}
assert all(pos >= 0 and pos <= 4095 for pos in pos_dict.values())
@pytest.mark.parametrize(
"idx, pos",
[
[1, 1337],
[2, 42],
[3, 4016],
],
)
def test_read_single_motor_by_name(idx, pos):
mock_motors = MockMotors([1, 2, 3])
mock_motors.build_single_motor_stubs("Present_Position", return_value=pos)
motors_bus = FeetechMotorsBus(
port=mock_motors.port,
motors={
"dummy_1": (1, "sts3215"),
"dummy_2": (2, "sts3215"),
"dummy_3": (3, "sts3215"),
},
)
motors_bus.connect() motors_bus.connect()
assert motors_bus.are_motors_configured()
del motors_bus pos_dict = motors_bus.read("Present_Position", f"dummy_{idx}")
assert mock_motors.stubs[f"SyncRead_Present_Position_{idx}"].called
assert pos_dict == {f"dummy_{idx}": pos}
assert all(pos >= 0 and pos <= 4095 for pos in pos_dict.values())
@pytest.mark.parametrize(
"idx, pos",
[
[1, 1337],
[2, 42],
[3, 4016],
],
)
def test_read_single_motor_by_id(idx, pos):
mock_motors = MockMotors([1, 2, 3])
mock_motors.build_single_motor_stubs("Present_Position", return_value=pos)
motors_bus = FeetechMotorsBus(
port=mock_motors.port,
motors={
"dummy_1": (1, "sts3215"),
"dummy_2": (2, "sts3215"),
"dummy_3": (3, "sts3215"),
},
)
motors_bus.connect()
pos_dict = motors_bus.read("Present_Position", idx)
assert mock_motors.stubs[f"SyncRead_Present_Position_{idx}"].called
assert pos_dict == {f"dummy_{idx}": pos}
assert all(pos >= 0 and pos <= 4095 for pos in pos_dict.values())
@pytest.mark.parametrize(
"num_retry, num_invalid_try, pos",
[
[1, 2, 1337],
[2, 3, 42],
[3, 2, 4016],
[2, 1, 999],
],
)
def test_read_num_retry(num_retry, num_invalid_try, pos):
mock_motors = MockMotors([1, 2, 3])
mock_motors.build_single_motor_stubs(
"Present_Position", return_value=pos, num_invalid_try=num_invalid_try
)
motors_bus = FeetechMotorsBus(
port=mock_motors.port,
motors={
"dummy_1": (1, "sts3215"),
"dummy_2": (2, "sts3215"),
"dummy_3": (3, "sts3215"),
},
)
motors_bus.connect()
if num_retry >= num_invalid_try:
pos_dict = motors_bus.read("Present_Position", 1, num_retry=num_retry)
assert pos_dict == {"dummy_1": pos}
assert all(pos >= 0 and pos <= 4095 for pos in pos_dict.values())
else:
with pytest.raises(ConnectionError):
_ = motors_bus.read("Present_Position", 1, num_retry=num_retry)
assert mock_motors.stubs["SyncRead_Present_Position_1"].calls == num_retry