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Viewing changes to Tools/Scripts/webkitpy/common/system/profiler_unittest.py

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-02-18 14:24:18 UTC
  • Revision ID: package-import@ubuntu.com-20130218142418-eon0jmjg3nj438uy
Tags: upstream-2.3
Import upstream version 2.3

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