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https://github.com/smaeul/u-boot.git
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c10eb9d39f
Tests may fail for a number of reasons, and in particular for reasons other than a timeout waiting for U-Boot to print expected data. If the last operation that a failed test performs is not waiting for U-Boot to print something, then any trailing output from U-Boot during that test's operation will not be logged as part of that test, but rather either along with the next test, or even thrown away, potentiall hiding clues re: the test failure reason. Solve this by explicitly draining (and hence logging) the U-Boot output in the case of failed tests. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
425 lines
12 KiB
Python
425 lines
12 KiB
Python
# Copyright (c) 2015 Stephen Warren
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# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
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#
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# SPDX-License-Identifier: GPL-2.0
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# Implementation of pytest run-time hook functions. These are invoked by
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# pytest at certain points during operation, e.g. startup, for each executed
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# test, at shutdown etc. These hooks perform functions such as:
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# - Parsing custom command-line options.
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# - Pullilng in user-specified board configuration.
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# - Creating the U-Boot console test fixture.
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# - Creating the HTML log file.
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# - Monitoring each test's results.
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# - Implementing custom pytest markers.
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import atexit
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import errno
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import os
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import os.path
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import pexpect
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import pytest
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from _pytest.runner import runtestprotocol
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import ConfigParser
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import StringIO
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import sys
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# Globals: The HTML log file, and the connection to the U-Boot console.
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log = None
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console = None
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def mkdir_p(path):
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'''Create a directory path.
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This includes creating any intermediate/parent directories. Any errors
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caused due to already extant directories are ignored.
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Args:
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path: The directory path to create.
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Returns:
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Nothing.
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'''
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try:
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os.makedirs(path)
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except OSError as exc:
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if exc.errno == errno.EEXIST and os.path.isdir(path):
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pass
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else:
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raise
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def pytest_addoption(parser):
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'''pytest hook: Add custom command-line options to the cmdline parser.
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Args:
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parser: The pytest command-line parser.
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Returns:
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Nothing.
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'''
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parser.addoption('--build-dir', default=None,
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help='U-Boot build directory (O=)')
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parser.addoption('--result-dir', default=None,
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help='U-Boot test result/tmp directory')
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parser.addoption('--persistent-data-dir', default=None,
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help='U-Boot test persistent generated data directory')
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parser.addoption('--board-type', '--bd', '-B', default='sandbox',
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help='U-Boot board type')
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parser.addoption('--board-identity', '--id', default='na',
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help='U-Boot board identity/instance')
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parser.addoption('--build', default=False, action='store_true',
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help='Compile U-Boot before running tests')
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def pytest_configure(config):
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'''pytest hook: Perform custom initialization at startup time.
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Args:
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config: The pytest configuration.
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Returns:
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Nothing.
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'''
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global log
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global console
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global ubconfig
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test_py_dir = os.path.dirname(os.path.abspath(__file__))
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source_dir = os.path.dirname(os.path.dirname(test_py_dir))
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board_type = config.getoption('board_type')
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board_type_filename = board_type.replace('-', '_')
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board_identity = config.getoption('board_identity')
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board_identity_filename = board_identity.replace('-', '_')
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build_dir = config.getoption('build_dir')
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if not build_dir:
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build_dir = source_dir + '/build-' + board_type
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mkdir_p(build_dir)
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result_dir = config.getoption('result_dir')
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if not result_dir:
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result_dir = build_dir
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mkdir_p(result_dir)
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persistent_data_dir = config.getoption('persistent_data_dir')
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if not persistent_data_dir:
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persistent_data_dir = build_dir + '/persistent-data'
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mkdir_p(persistent_data_dir)
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import multiplexed_log
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log = multiplexed_log.Logfile(result_dir + '/test-log.html')
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if config.getoption('build'):
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if build_dir != source_dir:
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o_opt = 'O=%s' % build_dir
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else:
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o_opt = ''
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cmds = (
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['make', o_opt, '-s', board_type + '_defconfig'],
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['make', o_opt, '-s', '-j8'],
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)
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runner = log.get_runner('make', sys.stdout)
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for cmd in cmds:
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runner.run(cmd, cwd=source_dir)
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runner.close()
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class ArbitraryAttributeContainer(object):
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pass
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ubconfig = ArbitraryAttributeContainer()
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ubconfig.brd = dict()
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ubconfig.env = dict()
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modules = [
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(ubconfig.brd, 'u_boot_board_' + board_type_filename),
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(ubconfig.env, 'u_boot_boardenv_' + board_type_filename),
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(ubconfig.env, 'u_boot_boardenv_' + board_type_filename + '_' +
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board_identity_filename),
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]
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for (dict_to_fill, module_name) in modules:
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try:
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module = __import__(module_name)
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except ImportError:
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continue
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dict_to_fill.update(module.__dict__)
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ubconfig.buildconfig = dict()
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for conf_file in ('.config', 'include/autoconf.mk'):
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dot_config = build_dir + '/' + conf_file
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if not os.path.exists(dot_config):
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raise Exception(conf_file + ' does not exist; ' +
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'try passing --build option?')
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with open(dot_config, 'rt') as f:
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ini_str = '[root]\n' + f.read()
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ini_sio = StringIO.StringIO(ini_str)
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parser = ConfigParser.RawConfigParser()
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parser.readfp(ini_sio)
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ubconfig.buildconfig.update(parser.items('root'))
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ubconfig.test_py_dir = test_py_dir
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ubconfig.source_dir = source_dir
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ubconfig.build_dir = build_dir
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ubconfig.result_dir = result_dir
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ubconfig.persistent_data_dir = persistent_data_dir
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ubconfig.board_type = board_type
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ubconfig.board_identity = board_identity
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env_vars = (
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'board_type',
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'board_identity',
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'source_dir',
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'test_py_dir',
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'build_dir',
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'result_dir',
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'persistent_data_dir',
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)
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for v in env_vars:
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os.environ['U_BOOT_' + v.upper()] = getattr(ubconfig, v)
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if board_type == 'sandbox':
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import u_boot_console_sandbox
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console = u_boot_console_sandbox.ConsoleSandbox(log, ubconfig)
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else:
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import u_boot_console_exec_attach
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console = u_boot_console_exec_attach.ConsoleExecAttach(log, ubconfig)
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def pytest_generate_tests(metafunc):
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'''pytest hook: parameterize test functions based on custom rules.
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If a test function takes parameter(s) (fixture names) of the form brd__xxx
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or env__xxx, the brd and env configuration dictionaries are consulted to
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find the list of values to use for those parameters, and the test is
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parametrized so that it runs once for each combination of values.
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Args:
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metafunc: The pytest test function.
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Returns:
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Nothing.
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'''
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subconfigs = {
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'brd': console.config.brd,
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'env': console.config.env,
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}
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for fn in metafunc.fixturenames:
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parts = fn.split('__')
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if len(parts) < 2:
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continue
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if parts[0] not in subconfigs:
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continue
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subconfig = subconfigs[parts[0]]
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vals = []
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val = subconfig.get(fn, [])
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# If that exact name is a key in the data source:
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if val:
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# ... use the dict value as a single parameter value.
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vals = (val, )
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else:
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# ... otherwise, see if there's a key that contains a list of
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# values to use instead.
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vals = subconfig.get(fn + 's', [])
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metafunc.parametrize(fn, vals)
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@pytest.fixture(scope='function')
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def u_boot_console(request):
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'''Generate the value of a test's u_boot_console fixture.
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Args:
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request: The pytest request.
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Returns:
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The fixture value.
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'''
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console.ensure_spawned()
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return console
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tests_not_run = set()
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tests_failed = set()
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tests_skipped = set()
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tests_passed = set()
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def pytest_itemcollected(item):
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'''pytest hook: Called once for each test found during collection.
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This enables our custom result analysis code to see the list of all tests
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that should eventually be run.
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Args:
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item: The item that was collected.
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Returns:
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Nothing.
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'''
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tests_not_run.add(item.name)
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def cleanup():
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'''Clean up all global state.
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Executed (via atexit) once the entire test process is complete. This
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includes logging the status of all tests, and the identity of any failed
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or skipped tests.
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Args:
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None.
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Returns:
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Nothing.
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'''
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if console:
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console.close()
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if log:
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log.status_pass('%d passed' % len(tests_passed))
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if tests_skipped:
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log.status_skipped('%d skipped' % len(tests_skipped))
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for test in tests_skipped:
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log.status_skipped('... ' + test)
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if tests_failed:
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log.status_fail('%d failed' % len(tests_failed))
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for test in tests_failed:
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log.status_fail('... ' + test)
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if tests_not_run:
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log.status_fail('%d not run' % len(tests_not_run))
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for test in tests_not_run:
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log.status_fail('... ' + test)
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log.close()
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atexit.register(cleanup)
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def setup_boardspec(item):
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'''Process any 'boardspec' marker for a test.
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Such a marker lists the set of board types that a test does/doesn't
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support. If tests are being executed on an unsupported board, the test is
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marked to be skipped.
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Args:
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item: The pytest test item.
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Returns:
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Nothing.
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'''
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mark = item.get_marker('boardspec')
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if not mark:
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return
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required_boards = []
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for board in mark.args:
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if board.startswith('!'):
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if ubconfig.board_type == board[1:]:
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pytest.skip('board not supported')
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return
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else:
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required_boards.append(board)
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if required_boards and ubconfig.board_type not in required_boards:
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pytest.skip('board not supported')
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def setup_buildconfigspec(item):
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'''Process any 'buildconfigspec' marker for a test.
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Such a marker lists some U-Boot configuration feature that the test
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requires. If tests are being executed on an U-Boot build that doesn't
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have the required feature, the test is marked to be skipped.
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Args:
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item: The pytest test item.
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Returns:
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Nothing.
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'''
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mark = item.get_marker('buildconfigspec')
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if not mark:
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return
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for option in mark.args:
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if not ubconfig.buildconfig.get('config_' + option.lower(), None):
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pytest.skip('.config feature not enabled')
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def pytest_runtest_setup(item):
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'''pytest hook: Configure (set up) a test item.
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Called once for each test to perform any custom configuration. This hook
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is used to skip the test if certain conditions apply.
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Args:
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item: The pytest test item.
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Returns:
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Nothing.
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'''
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log.start_section(item.name)
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setup_boardspec(item)
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setup_buildconfigspec(item)
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def pytest_runtest_protocol(item, nextitem):
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'''pytest hook: Called to execute a test.
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This hook wraps the standard pytest runtestprotocol() function in order
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to acquire visibility into, and record, each test function's result.
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Args:
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item: The pytest test item to execute.
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nextitem: The pytest test item that will be executed after this one.
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Returns:
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A list of pytest reports (test result data).
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'''
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reports = runtestprotocol(item, nextitem=nextitem)
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failed = None
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skipped = None
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for report in reports:
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if report.outcome == 'failed':
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failed = report
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break
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if report.outcome == 'skipped':
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if not skipped:
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skipped = report
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if failed:
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console.drain_console()
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tests_failed.add(item.name)
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elif skipped:
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tests_skipped.add(item.name)
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else:
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tests_passed.add(item.name)
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tests_not_run.remove(item.name)
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try:
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if failed:
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msg = 'FAILED:\n' + str(failed.longrepr)
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log.status_fail(msg)
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elif skipped:
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msg = 'SKIPPED:\n' + str(skipped.longrepr)
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log.status_skipped(msg)
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else:
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log.status_pass('OK')
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except:
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# If something went wrong with logging, it's better to let the test
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# process continue, which may report other exceptions that triggered
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# the logging issue (e.g. console.log wasn't created). Hence, just
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# squash the exception. If the test setup failed due to e.g. syntax
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# error somewhere else, this won't be seen. However, once that issue
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# is fixed, if this exception still exists, it will then be logged as
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# part of the test's stdout.
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import traceback
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print 'Exception occurred while logging runtest status:'
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traceback.print_exc()
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# FIXME: Can we force a test failure here?
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log.end_section(item.name)
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if failed:
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console.cleanup_spawn()
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return reports
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