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# Copyright The OpenTracing Authors
#
# 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.
from __future__ import absolute_import
import unittest
from opentracing import Tracer
from opentracing.harness.api_check import APICompatibilityCheckMixin
class VerifyAPICompatibilityCheck(unittest.TestCase):
def test_tracer_exception(self):
api_check = APICompatibilityCheckMixin()
with self.assertRaises(NotImplementedError):
api_check.tracer()
def test_default_baggage_check_mode(self):
api_check = APICompatibilityCheckMixin()
assert api_check.check_baggage_values() is True
def test_default_scope_manager_check_mode(self):
api_check = APICompatibilityCheckMixin()
assert api_check.check_scope_manager() is True
def test_baggage_check_works(self):
api_check = APICompatibilityCheckMixin()
setattr(api_check, 'tracer', lambda: Tracer())
# no-op tracer does not store baggage, so the test with default
# value of `check_baggage_values()` should fail.
with self.assertRaises(AssertionError):
api_check.test_span_baggage()
# second check that assert on empty baggage will fail too
with self.assertRaises(AssertionError):
api_check.test_context_baggage()
def test_scope_manager_check_works(self):
api_check = APICompatibilityCheckMixin()
setattr(api_check, 'tracer', lambda: Tracer())
# these tests are expected to succeed
api_check.test_start_active_span_ignore_active_span()
api_check.test_start_span_propagation_ignore_active_span()
# no-op tracer has a no-op ScopeManager implementation,
# which means no *actual* propagation is done,
# so these tests are expected to work, but asserts to fail
with self.assertRaises(AssertionError):
api_check.test_start_active_span()
with self.assertRaises(AssertionError):
api_check.test_start_active_span_parent()
with self.assertRaises(AssertionError):
api_check.test_start_span_propagation()
with self.assertRaises(AssertionError):
api_check.test_tracer_start_active_span_scope()
with self.assertRaises(AssertionError):
api_check.test_tracer_start_span_scope()
with self.assertRaises(AssertionError):
api_check.test_start_active_span_finish_on_close()
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