zephyr/scripts/pylib/pytest-twister-harness/tests/device/binary_adapter_test.py

224 lines
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Python
Executable File

# Copyright (c) 2023 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: Apache-2.0
import logging
import os
import subprocess
import time
from pathlib import Path
from typing import Generator
from unittest import mock
import pytest
from twister_harness.device.binary_adapter import (
CustomSimulatorAdapter,
NativeSimulatorAdapter,
UnitSimulatorAdapter,
)
from twister_harness.exceptions import TwisterHarnessException, TwisterHarnessTimeoutException
from twister_harness.twister_harness_config import DeviceConfig
@pytest.fixture
def script_path(resources: Path) -> str:
return str(resources.joinpath('mock_script.py'))
@pytest.fixture(name='device')
def fixture_device_adapter(tmp_path: Path) -> Generator[NativeSimulatorAdapter, None, None]:
build_dir = tmp_path / 'build_dir'
os.mkdir(build_dir)
device = NativeSimulatorAdapter(DeviceConfig(build_dir=build_dir, type='native', base_timeout=5.0))
try:
yield device
finally:
device.close() # to make sure all running processes are closed
@pytest.fixture(name='launched_device')
def fixture_launched_device_adapter(
device: NativeSimulatorAdapter, script_path: str
) -> Generator[NativeSimulatorAdapter, None, None]:
device.command = ['python3', script_path]
try:
device.launch()
yield device
finally:
device.close() # to make sure all running processes are closed
def test_if_binary_adapter_runs_without_errors(launched_device: NativeSimulatorAdapter) -> None:
"""
Run script which prints text line by line and ends without errors.
Verify if subprocess was ended without errors, and without timeout.
"""
device = launched_device
lines = device.readlines_until(regex='Returns with code')
device.close()
assert 'Readability counts.' in lines
assert os.path.isfile(device.handler_log_path)
with open(device.handler_log_path, 'r') as file:
file_lines = [line.strip() for line in file.readlines()]
assert file_lines[-2:] == lines[-2:]
def test_if_binary_adapter_finishes_after_timeout_while_there_is_no_data_from_subprocess(
device: NativeSimulatorAdapter, script_path: str
) -> None:
"""Test if thread finishes after timeout when there is no data on stdout, but subprocess is still running"""
device.base_timeout = 0.3
device.command = ['python3', script_path, '--long-sleep', '--sleep=5']
device.launch()
with pytest.raises(TwisterHarnessTimeoutException, match='Read from device timeout occurred'):
device.readlines_until(regex='Returns with code')
device.close()
assert device._process is None
with open(device.handler_log_path, 'r') as file:
file_lines = [line.strip() for line in file.readlines()]
# this message should not be printed because script has been terminated due to timeout
assert 'End of script' not in file_lines, 'Script has not been terminated before end'
def test_if_binary_adapter_raises_exception_empty_command(device: NativeSimulatorAdapter) -> None:
device.command = []
exception_msg = 'Run command is empty, please verify if it was generated properly.'
with pytest.raises(TwisterHarnessException, match=exception_msg):
device._flash_and_run()
@mock.patch('subprocess.Popen', side_effect=subprocess.SubprocessError(1, 'Exception message'))
def test_if_binary_adapter_raises_exception_when_subprocess_raised_subprocess_error(
patched_popen, device: NativeSimulatorAdapter
) -> None:
device.command = ['echo', 'TEST']
with pytest.raises(TwisterHarnessException, match='Exception message'):
device._flash_and_run()
@mock.patch('subprocess.Popen', side_effect=FileNotFoundError(1, 'File not found', 'fake_file.txt'))
def test_if_binary_adapter_raises_exception_file_not_found(
patched_popen, device: NativeSimulatorAdapter
) -> None:
device.command = ['echo', 'TEST']
with pytest.raises(TwisterHarnessException, match='fake_file.txt'):
device._flash_and_run()
@mock.patch('subprocess.Popen', side_effect=Exception(1, 'Raised other exception'))
def test_if_binary_adapter_raises_exception_when_subprocess_raised_an_error(
patched_popen, device: NativeSimulatorAdapter
) -> None:
device.command = ['echo', 'TEST']
with pytest.raises(TwisterHarnessException, match='Raised other exception'):
device._flash_and_run()
def test_if_binary_adapter_connect_disconnect_print_warnings_properly(
caplog: pytest.LogCaptureFixture, launched_device: NativeSimulatorAdapter
) -> None:
device = launched_device
assert device._device_connected.is_set() and device.is_device_connected()
caplog.set_level(logging.DEBUG)
device.connect()
warning_msg = 'Device already connected'
assert warning_msg in caplog.text
for record in caplog.records:
if record.message == warning_msg:
assert record.levelname == 'DEBUG'
break
device.disconnect()
assert not device._device_connected.is_set() and not device.is_device_connected()
device.disconnect()
warning_msg = 'Device already disconnected'
assert warning_msg in caplog.text
for record in caplog.records:
if record.message == warning_msg:
assert record.levelname == 'DEBUG'
break
def test_if_binary_adapter_raise_exc_during_connect_read_and_write_after_close(
launched_device: NativeSimulatorAdapter
) -> None:
device = launched_device
assert device._device_run.is_set() and device.is_device_running()
device.close()
assert not device._device_run.is_set() and not device.is_device_running()
with pytest.raises(TwisterHarnessException, match='Cannot connect to not working device'):
device.connect()
with pytest.raises(TwisterHarnessException, match='No connection to the device'):
device.write(b'')
device.clear_buffer()
with pytest.raises(TwisterHarnessException, match='No connection to the device and no more data to read.'):
device.readline()
def test_if_binary_adapter_raise_exc_during_read_and_write_after_close(
launched_device: NativeSimulatorAdapter
) -> None:
device = launched_device
device.disconnect()
with pytest.raises(TwisterHarnessException, match='No connection to the device'):
device.write(b'')
device.clear_buffer()
with pytest.raises(TwisterHarnessException, match='No connection to the device and no more data to read.'):
device.readline()
def test_if_binary_adapter_is_able_to_read_leftovers_after_disconnect_or_close(
device: NativeSimulatorAdapter, script_path: str
) -> None:
device.command = ['python3', script_path, '--sleep=0.05']
device.launch()
device.readlines_until(regex='Beautiful is better than ugly.')
time.sleep(0.1)
device.disconnect()
assert len(device.readlines()) > 0
device.connect()
device.readlines_until(regex='Flat is better than nested.')
time.sleep(0.1)
device.close()
assert len(device.readlines()) > 0
def test_if_binary_adapter_properly_send_data_to_subprocess(
shell_simulator_adapter: NativeSimulatorAdapter
) -> None:
"""Run shell_simulator.py program, send "zen" command and verify output."""
device = shell_simulator_adapter
time.sleep(0.1)
device.write(b'zen\n')
time.sleep(1)
lines = device.readlines_until(regex='Namespaces are one honking great idea')
assert 'The Zen of Python, by Tim Peters' in lines
def test_if_native_binary_adapter_get_command_returns_proper_string(device: NativeSimulatorAdapter) -> None:
device.generate_command()
assert isinstance(device.command, list)
assert device.command == [str(device.device_config.build_dir / 'zephyr' / 'zephyr.exe')]
@mock.patch('shutil.which', return_value='west')
def test_if_custom_binary_adapter_get_command_returns_proper_string(patched_which, tmp_path: Path) -> None:
device = CustomSimulatorAdapter(DeviceConfig(build_dir=tmp_path, type='custom'))
device.generate_command()
assert isinstance(device.command, list)
assert device.command == ['west', 'build', '-d', str(tmp_path), '-t', 'run']
@mock.patch('shutil.which', return_value=None)
def test_if_custom_binary_adapter_raise_exception_when_west_not_found(patched_which, tmp_path: Path) -> None:
device = CustomSimulatorAdapter(DeviceConfig(build_dir=tmp_path, type='custom'))
with pytest.raises(TwisterHarnessException, match='west not found'):
device.generate_command()
def test_if_unit_binary_adapter_get_command_returns_proper_string(tmp_path: Path) -> None:
device = UnitSimulatorAdapter(DeviceConfig(build_dir=tmp_path, type='unit'))
device.generate_command()
assert isinstance(device.command, list)
assert device.command == [str(tmp_path / 'testbinary')]