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# Copyright (c) 2016 Uber Technologies, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import opentracing
from opentracing import Tracer, Format
def test_new_trace():
tracer = Tracer()
span = tracer.start_span(operation_name='test')
span.set_baggage_item('Fry', 'Leela')
span.set_tag('x', 'y')
span.log_event('z')
child = tracer.start_span(operation_name='child',
references=opentracing.child_of(span.context))
child.log_event('w')
assert child.get_baggage_item('Fry') is None
carrier = {}
tracer.inject(
span_context=child.context,
format=Format.TEXT_MAP,
carrier=carrier)
assert carrier == dict()
child.finish()
span.finish()
def test_join_trace():
tracer = Tracer()
span_ctx = tracer.extract(format=Format.TEXT_MAP, carrier={})
span = tracer.start_span(operation_name='test',
references=opentracing.child_of(span_ctx))
span.set_tag('x', 'y')
span.set_baggage_item('a', 'b')
span.log_event('z')
child = tracer.start_span(operation_name='child',
references=opentracing.child_of(span.context))
child.log_event('w')
child.finish()
span.finish()
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