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from __future__ import print_function
import gevent
from opentracing.mocktracer import MockTracer
from opentracing.scope_managers.gevent import GeventScopeManager
from ..testcase import OpenTracingTestCase
class TestGevent(OpenTracingTestCase):
def setUp(self):
self.tracer = MockTracer(GeventScopeManager())
def test_main(self):
# Start a Span and let the callback-chain
# finish it when the task is done
with self.tracer.start_active_span('one', finish_on_close=False):
self.submit()
gevent.wait()
spans = self.tracer.finished_spans()
self.assertEqual(len(spans), 1)
self.assertEqual(spans[0].operation_name, 'one')
for i in range(1, 4):
self.assertEqual(spans[0].tags.get('key%s' % i, None), str(i))
def submit(self):
span = self.tracer.scope_manager.active.span
def task1():
with self.tracer.scope_manager.activate(span, False):
span.set_tag('key1', '1')
def task2():
with self.tracer.scope_manager.activate(span, False):
span.set_tag('key2', '2')
def task3():
with self.tracer.scope_manager.activate(span,
True):
span.set_tag('key3', '3')
gevent.spawn(task3)
gevent.spawn(task2)
gevent.spawn(task1)
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