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# Copyright (C) 2012 Google Inc. All rights reserved.
#
# 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.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import unittest
from webkitpy.common.system.systemhost_mock import MockSystemHost
from .profiler import ProfilerFactory, Instruments, GooglePProf
class ProfilerFactoryTest(unittest.TestCase):
def test_basic(self):
host = MockSystemHost()
self.assertFalse(host.filesystem.exists("/tmp/output"))
profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output')
self.assertTrue(host.filesystem.exists("/tmp/output"))
self.assertEquals(profiler._output_path, "/tmp/output/test.trace")
host.platform.os_name = 'linux'
profiler = ProfilerFactory.create_profiler(host, '/bin/executable', '/tmp/output')
self.assertEquals(profiler._output_path, "/tmp/output/test.pprof")
def test_pprof_output_regexp(self):
pprof_output = """
sometimes
there
is
junk before the total line
Total: 3770 samples
76 2.0% 2.0% 104 2.8% lookup (inline)
60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline)
56 1.5% 5.1% 56 1.5% MaskPtr (inline)
51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken
42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity
35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline)
33 0.9% 9.4% 43 1.1% append (inline)
29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline)
29 0.8% 10.9% 100 2.7% add (inline)
28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline)
25 0.7% 12.3% 27 0.7% WebCore::Private::addChildNodesToDeletionQueue
24 0.6% 12.9% 24 0.6% __memcpy_ssse3_back
23 0.6% 13.6% 23 0.6% intHash (inline)
23 0.6% 14.2% 76 2.0% tcmalloc::FL_Next
23 0.6% 14.8% 95 2.5% tcmalloc::FL_Push
22 0.6% 15.4% 22 0.6% WebCore::MarkupTokenizerBase::InputStreamPreprocessor::peek (inline)
"""
expected_first_ten_lines = """ 76 2.0% 2.0% 104 2.8% lookup (inline)
60 1.6% 3.6% 60 1.6% FL_SetPrevious (inline)
56 1.5% 5.1% 56 1.5% MaskPtr (inline)
51 1.4% 6.4% 222 5.9% WebCore::HTMLTokenizer::nextToken
42 1.1% 7.6% 47 1.2% WTF::Vector::shrinkCapacity
35 0.9% 8.5% 35 0.9% WTF::RefPtr::get (inline)
33 0.9% 9.4% 43 1.1% append (inline)
29 0.8% 10.1% 67 1.8% WTF::StringImpl::deref (inline)
29 0.8% 10.9% 100 2.7% add (inline)
28 0.7% 11.6% 28 0.7% WebCore::QualifiedName::localName (inline)
"""
host = MockSystemHost()
profiler = GooglePProf(host, '/bin/executable', '/tmp/output')
self.assertEquals(profiler._first_ten_lines_of_profile(pprof_output), expected_first_ten_lines)
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