# Copyright (C) 2012 Google Inc. All rights reserved.
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import unittest
from blinkpy.common.system.platform_info_mock import MockPlatformInfo
from blinkpy.common.system.system_host_mock import MockSystemHost
from .profiler import ProfilerFactory, GooglePProf
class ProfilerFactoryTest(unittest.TestCase):
def _assert_default_profiler_name(self, os_name, expected_profiler_name):
profiler_name = ProfilerFactory.default_profiler_name(
MockPlatformInfo(os_name))
self.assertEqual(profiler_name, expected_profiler_name)
def test_default_profilers(self):
self._assert_default_profiler_name('mac', 'iprofiler')
self._assert_default_profiler_name('linux', 'perf')
self._assert_default_profiler_name('win32', None)
self._assert_default_profiler_name('freebsd', None)
def test_default_profiler_output(self):
host = MockSystemHost()
self.assertFalse(host.filesystem.exists("/tmp/output"))
# Default mocks are Mac, so iprofile should be default.
profiler = ProfilerFactory.create_profiler(host, '/bin/executable',
'/tmp/output')
self.assertTrue(host.filesystem.exists("/tmp/output"))
self.assertEqual(profiler._output_path, "/tmp/output/test.dtps")
# Linux defaults to perf.
host.platform.os_name = 'linux'
profiler = ProfilerFactory.create_profiler(host, '/bin/executable',
'/tmp/output')
self.assertEqual(profiler._output_path, "/tmp/output/test.data")
class GooglePProfTest(unittest.TestCase):
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.assertEqual(
profiler._first_ten_lines_of_profile(pprof_output),
expected_first_ten_lines)
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