How to use _agent method in ATX

Best Python code snippet using ATX

cpu_tracing_agent_unittest.py

Source:cpu_tracing_agent_unittest.py

1# Copyright 2016 The Chromium Authors. All rights reserved.2# Use of this source code is governed by a BSD-style license that can be3# found in the LICENSE file.4import json5import sys6import time7import unittest8from telemetry import decorators9from telemetry.internal.platform.tracing_agent import cpu_tracing_agent10from telemetry.internal.platform import tracing_agent11from telemetry.internal.platform import linux_platform_backend12from telemetry.internal.platform import mac_platform_backend13from telemetry.internal.platform import win_platform_backend14from telemetry.timeline import tracing_config15from tracing.trace_data import trace_data16SNAPSHOT_KEYS = ['pid', 'ppid', 'name', 'pCpu', 'pMem']17TRACE_EVENT_KEYS = ['name', 'tid', 'pid', 'ph', 'args', 'local', 'id', 'ts']18class FakeAndroidPlatformBackend(object):19  def __init__(self):20    self.device = 'fake_device'21  def GetOSName(self):22    return 'android'23class CpuTracingAgentTest(unittest.TestCase):24  def setUp(self):25    self._config = tracing_config.TracingConfig()26    self._config.enable_cpu_trace = True27    if sys.platform.startswith('win'):28      self._desktop_backend = win_platform_backend.WinPlatformBackend()29    elif sys.platform.startswith('darwin'):30      self._desktop_backend = mac_platform_backend.MacPlatformBackend()31    else:32      self._desktop_backend = linux_platform_backend.LinuxPlatformBackend()33    self._agent = cpu_tracing_agent.CpuTracingAgent(self._desktop_backend)34  @decorators.Enabled('linux', 'mac', 'win')35  def testInit(self):36    self.assertTrue(isinstance(self._agent,37                               tracing_agent.TracingAgent))38    self.assertFalse(self._agent._snapshots)39    self.assertFalse(self._agent._snapshot_ongoing)40  @decorators.Enabled('linux', 'mac', 'win')41  def testIsSupported(self):42    self.assertTrue(cpu_tracing_agent.CpuTracingAgent.IsSupported(43      self._desktop_backend))44    self.assertFalse(cpu_tracing_agent.CpuTracingAgent.IsSupported(45      FakeAndroidPlatformBackend()))46  @decorators.Enabled('linux', 'mac', 'win')47  def testStartAgentTracing(self):48    self.assertFalse(self._agent._snapshot_ongoing)49    self.assertFalse(self._agent._snapshots)50    self.assertTrue(self._agent.StartAgentTracing(self._config, 0))51    self.assertTrue(self._agent._snapshot_ongoing)52    time.sleep(2)53    self.assertTrue(self._agent._snapshots)54    self._agent.StopAgentTracing()55  @decorators.Enabled('linux', 'mac', 'win')56  def testStartAgentTracingNotEnabled(self):57    self._config.enable_cpu_trace = False58    self.assertFalse(self._agent._snapshot_ongoing)59    self.assertFalse(self._agent.StartAgentTracing(self._config, 0))60    self.assertFalse(self._agent._snapshot_ongoing)61    self.assertFalse(self._agent._snapshots)62    time.sleep(2)63    self.assertFalse(self._agent._snapshots)64  @decorators.Enabled('linux', 'mac', 'win')65  def testStopAgentTracingBeforeStart(self):66    self.assertRaises(AssertionError, self._agent.StopAgentTracing)67  @decorators.Enabled('linux', 'mac', 'win')68  def testStopAgentTracing(self):69    self._agent.StartAgentTracing(self._config, 0)70    self._agent.StopAgentTracing()71    self.assertFalse(self._agent._snapshot_ongoing)72  @decorators.Enabled('linux', 'mac', 'win')73  def testCollectAgentTraceDataBeforeStop(self):74    self._agent.StartAgentTracing(self._config, 0)75    self.assertRaises(AssertionError, self._agent.CollectAgentTraceData,76        trace_data.TraceDataBuilder())77    self._agent.StopAgentTracing()78  @decorators.Enabled('linux', 'mac', 'win')79  def testCollectAgentTraceData(self):80    builder = trace_data.TraceDataBuilder()81    self._agent.StartAgentTracing(self._config, 0)82    self._agent.StopAgentTracing()83    self._agent.CollectAgentTraceData(builder)84    self.assertFalse(self._agent._snapshot_ongoing)85    builder = builder.AsData()86    self.assertTrue(builder.HasTracesFor(trace_data.CPU_TRACE_DATA))87  @decorators.Enabled('linux', 'mac', 'win')88  def testCollectAgentTraceDataFormat(self):89    builder = trace_data.TraceDataBuilder()90    self._agent.StartAgentTracing(self._config, 0)91    time.sleep(2)92    self._agent.StopAgentTracing()93    self._agent.CollectAgentTraceData(builder)94    builder = builder.AsData()95    data = json.loads(builder.GetTracesFor(trace_data.CPU_TRACE_DATA)[0])96    self.assertTrue(data)97    self.assertEquals(set(data[0].keys()), set(TRACE_EVENT_KEYS))98    self.assertEquals(set(data[0]['args']['snapshot'].keys()),99                      set(['processes']))100    self.assertTrue(data[0]['args']['snapshot']['processes'])101    self.assertEquals(set(data[0]['args']['snapshot']['processes'][0].keys()),102                      set(SNAPSHOT_KEYS))103  @decorators.Enabled('linux', 'mac', 'win')104  def testContainsRealProcesses(self):105    builder = trace_data.TraceDataBuilder()106    self._agent.StartAgentTracing(self._config, 0)107    time.sleep(2)108    self._agent.StopAgentTracing()109    self._agent.CollectAgentTraceData(builder)110    builder = builder.AsData()111    data = json.loads(builder.GetTracesFor(trace_data.CPU_TRACE_DATA)[0])112    self.assertTrue(data)113    for snapshot in data:114      found_unittest_process = False115      processes = snapshot['args']['snapshot']['processes']116      for process in processes:117        if 'run_tests' in process['name']:118          found_unittest_process = True119      self.assertTrue(found_unittest_process)120  @decorators.Enabled('win')121  def testWindowsCanHandleProcessesWithSpaces(self):122    proc_collector = cpu_tracing_agent.WindowsProcessCollector()123    proc_collector.Init()124    proc = proc_collector._ParseProcessString(125      '0 1 Multi Word Process 50 75')126    self.assertEquals(proc['ppid'], 0)127    self.assertEquals(proc['pid'], 1)128    self.assertEquals(proc['name'], 'Multi Word Process')...

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