def testTracingControlDisabledInChildButNotInParent(self):
def child(resp):
# test tracing is not controllable in the child
resp.put(trace_event.is_tracing_controllable())
with self._test_trace():
q = multiprocessing.Queue()
p = multiprocessing.Process(target=child, args=[q])
p.start()
# test tracing is controllable in the parent
self.assertTrue(trace_event.is_tracing_controllable())
self.assertFalse(q.get())
p.join()
def StartAgentTracing(self, config, timeout):
self._is_tracing_controllable = trace_event.is_tracing_controllable()
if not self._is_tracing_controllable:
return False
tf = tempfile.NamedTemporaryFile(delete=False)
self._trace_log = tf.name
tf.close()
del config # unused
del timeout # unused
assert not trace_event.trace_is_enabled(), 'Tracing already running.'
trace_event.trace_enable(self._trace_log)
assert trace_event.trace_is_enabled(), 'Tracing didn\'t enable properly.'
return True
def _IsTracingControllable(self): return trace_event.is_tracing_controllable()
def child(resp):
# test tracing is not controllable in the child
resp.put(trace_event.is_tracing_controllable())
# found in the LICENSE file.
import unittest
from telemetry.internal.results import page_test_results
from telemetry.internal.platform.tracing_agent import telemetry_tracing_agent
from telemetry.testing import test_stories
from tracing.trace_data import trace_data
from py_trace_event import trace_event
def GetEventNames(trace):
return (e['name'] for e in trace['traceEvents'])
@unittest.skipUnless(trace_event.is_tracing_controllable(),
'py_trace_event is not supported')
class TelemetryTracingAgentTest(unittest.TestCase):
def setUp(self):
platform = None # Does not actually need one.
self.config = None # Does not actually need one.
self.agent = telemetry_tracing_agent.TelemetryTracingAgent(
platform, self.config)
def tearDown(self):
if self.agent.is_tracing:
self.agent.StopAgentTracing()
def testAddTraceEvent(self):
self.agent.StartAgentTracing(self.config, timeout=10)
with trace_event.trace('test-marker'):
def IsSupported(cls, platform_backend):
del platform_backend # Unused.
return trace_event.is_tracing_controllable()
def IsSupported(cls, platform_backend): del platform_backend # Unused. return trace_event.is_tracing_controllable()
