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#!/usr/bin/env python
# Copyright (c) 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import contextlib
import logging
import os
import unittest
from systrace import decorators
from systrace import run_systrace
from systrace import util
from systrace.tracing_agents import atrace_agent
from devil.android import device_utils
from devil.android.sdk import intent
DEVICE_SERIAL = 'AG8404EC0444AGC'
ATRACE_ARGS = ['atrace', '-z', '-t', '10', '-b', '4096']
CATEGORIES = ['sched', 'gfx', 'view', 'wm']
ADB_SHELL = ['adb', '-s', DEVICE_SERIAL, 'shell']
SYSTRACE_CMD = ['./run_systrace.py', '--time', '10', '-o', 'out.html', '-e',
DEVICE_SERIAL] + CATEGORIES
TRACE_ARGS = (ATRACE_ARGS + CATEGORIES)
TEST_DIR = os.path.join(os.path.dirname(__file__), os.pardir, 'test_data')
ATRACE_DATA = os.path.join(TEST_DIR, 'atrace_data')
ATRACE_DATA_RAW = os.path.join(TEST_DIR, 'atrace_data_raw')
ATRACE_DATA_STRIPPED = os.path.join(TEST_DIR, 'atrace_data_stripped')
ATRACE_PROCFS_DUMP = os.path.join(TEST_DIR, 'atrace_procfs_dump')
ATRACE_EXTRACTED_TGIDS = os.path.join(TEST_DIR, 'atrace_extracted_tgids')
ATRACE_MISSING_TGIDS = os.path.join(TEST_DIR, 'atrace_missing_tgids')
ATRACE_FIXED_TGIDS = os.path.join(TEST_DIR, 'atrace_fixed_tgids')
class AtraceAgentTest(unittest.TestCase):
# TODO(washingtonp): These end-to-end tests do not work on the Trybot server
# because adb cannot be found on the Trybot servers. Figure out what the
# issue is and update this test.
@decorators.Disabled
def test_tracing(self):
TRACE_BUFFER_SIZE = '16384'
TRACE_TIME = '5'
devices = device_utils.DeviceUtils.HealthyDevices()
package_info = util.get_supported_browsers()['stable']
device = devices[0]
output_file_name = util.generate_random_filename_for_test()
try:
# Launch the browser before tracing.
device.StartActivity(
intent.Intent(activity=package_info.activity,
package=package_info.package,
data='about:blank',
extras={'create_new_tab': True}),
blocking=True, force_stop=True)
# Run atrace agent.
run_systrace.main_impl(['./run_systrace.py',
'-b',
TRACE_BUFFER_SIZE,
'-t',
TRACE_TIME,
'-o',
output_file_name,
'-e',
str(device),
'--atrace-categories=gfx,input,view'])
# Verify results.
with open(output_file_name, 'r') as f:
full_trace = f.read()
self.assertTrue('CPU#'in full_trace)
except:
raise
finally:
if os.path.exists(output_file_name):
os.remove(output_file_name)
@decorators.HostOnlyTest
def test_construct_atrace_args(self):
options, categories = run_systrace.parse_options(SYSTRACE_CMD)
options.atrace_categories = categories
tracer_args = atrace_agent._construct_atrace_args(options, categories)
self.assertEqual(' '.join(TRACE_ARGS), ' '.join(tracer_args))
@decorators.HostOnlyTest
def test_strip_and_decompress_trace(self):
with contextlib.nested(open(ATRACE_DATA_RAW, 'r'),
open(ATRACE_DATA_STRIPPED, 'r')) as (f1, f2):
atrace_data_raw = f1.read()
atrace_data_stripped = f2.read()
trace_data = atrace_agent.strip_and_decompress_trace(atrace_data_raw)
self.assertEqual(atrace_data_stripped, trace_data)
@decorators.HostOnlyTest
def test_extract_tgids(self):
with contextlib.nested(open(ATRACE_PROCFS_DUMP, 'r'),
open(ATRACE_EXTRACTED_TGIDS, 'r')) as (f1, f2):
atrace_procfs_dump = f1.read()
atrace_procfs_extracted = f2.read()
tgids = eval(atrace_procfs_extracted)
result = atrace_agent.extract_tgids(atrace_procfs_dump.splitlines())
self.assertEqual(result, tgids)
@decorators.HostOnlyTest
def test_fix_missing_tgids(self):
with contextlib.nested(open(ATRACE_EXTRACTED_TGIDS, 'r'),
open(ATRACE_MISSING_TGIDS, 'r'),
open(ATRACE_FIXED_TGIDS, 'r')) as (f1, f2, f3):
atrace_data = f2.read()
tgid_map = eval(f1.read())
fixed = f3.read()
res = atrace_agent.fix_missing_tgids(atrace_data, tgid_map)
self.assertEqual(res, fixed)
if __name__ == "__main__":
logging.getLogger().setLevel(logging.DEBUG)
unittest.main(verbosity=2)
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