Tools/Scripts/webkitpy/port/linux_get_crash_log_unittest.py

# Copyright (C) 2013 University of Szeged
# This module is a refactoring from gtk.py, Copyright (C) 2013 Igalia S.L
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
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# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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import os
import sys
import unittest

from webkitpy.common.system.executive_mock import MockExecutive
from webkitpy.common.system.executive_mock import MockProcess
from webkitpy.common.system.filesystem_mock import MockFileSystem
from webkitpy.port.linux_get_crash_log import GDBCrashLogGenerator


class GDBCrashLogGeneratorTest(unittest.TestCase):

    def test_generate_crash_log(self):
        if sys.platform.startswith('win'):
            return

        executive = MockExecutive()
        executive._proc = MockProcess()
        executive._proc.stdout = 'STDERR: <empty>'
        generator = GDBCrashLogGenerator(executive, 'DumpRenderTree', 28529, newer_than=None, filesystem=MockFileSystem({'/path/to/coredumps': ''}), path_to_driver=None)

        core_directory = os.environ.get('WEBKIT_CORE_DUMPS_DIRECTORY', '/path/to/coredumps')
        core_pattern = generator._filesystem.join(core_directory, "core-pid_%p.dump")
        mock_empty_crash_log = """\
crash log for DumpRenderTree (pid 28529):

Coredump core-pid_28529.dump not found. To enable crash logs:

- run this command as super-user: echo "%(core_pattern)s" > /proc/sys/kernel/core_pattern
- enable core dumps: ulimit -c unlimited
- set the WEBKIT_CORE_DUMPS_DIRECTORY environment variable: export WEBKIT_CORE_DUMPS_DIRECTORY=%(core_directory)s


STDERR: <empty>""" % locals()

        def _mock_gdb_output(self, coredump_path):
            return (mock_empty_crash_log, [])

        generator._get_gdb_output = _mock_gdb_output
        stderr, log = generator.generate_crash_log(None, None)
        self.assertEqual(stderr, None)
        self.assertMultiLineEqual(log, mock_empty_crash_log)

        generator.newer_than = 0.0
        self.assertEqual(stderr, None)
        self.assertMultiLineEqual(log, mock_empty_crash_log)