# Copyright 2017 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import logging
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import yaml
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class ParseKnownCTSFailures(object):
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"""A class to parse known failures in CTS test."""
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def __init__(self, failure_files):
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self.waivers_yaml = self._load_failures(failure_files)
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def _validate_waiver_config(self, arch, board, bundle_abi, sdk_ver, config):
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"""Validate if the test environment matches the test config.
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@param arch: DUT's arch type.
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@param board: DUT's board name.
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@param bundle_abi: The test's abi type.
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@param sdk_ver: DUT's Android SDK version
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@param config: config for an expected failing test.
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@return True if test arch or board is part of the config, else False.
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"""
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dut_config = ['all', arch, board]
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if bundle_abi and bundle_abi != arch:
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dut_config.append('nativebridge')
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# Map only the versions that ARC releases care.
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sdk_ver_map = {'25': 'N', '28': 'P'}
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if sdk_ver in sdk_ver_map:
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dut_config.append(sdk_ver_map[sdk_ver])
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return len(set(dut_config).intersection(config)) > 0
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def _load_failures(self, failure_files):
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"""Load failures from files.
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@param failure_files: files with failure configs.
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@return a dictionary of failures config in yaml format.
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"""
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waivers_yaml = {}
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for failure_file in failure_files:
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try:
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logging.info('Loading expected failure file: %s.', failure_file)
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with open(failure_file) as wf:
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waivers_yaml.update(yaml.load(wf.read()))
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except IOError as e:
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logging.error('Error loading %s (%s).',
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failure_file,
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e.strerror)
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continue
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logging.info('Finished loading expected failure file: %s',
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failure_file)
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return waivers_yaml
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def find_waivers(self, arch, board, bundle_abi, sdk_ver):
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"""Finds waivers for the test board.
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@param arch: DUT's arch type.
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@param board: DUT's board name.
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@param bundle_abi: The test's abi type.
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@param sdk_ver: DUT's Android SDK version
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@return a set of waivers/no-test-modules applied to the test board.
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"""
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applied_waiver_list = set()
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for test, config in self.waivers_yaml.iteritems():
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if self._validate_waiver_config(arch, board, bundle_abi, sdk_ver,
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config):
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applied_waiver_list.add(test)
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logging.info('Excluding tests/packages from rerun: %s.',
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applied_waiver_list)
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return applied_waiver_list
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