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# Copyright The OpenTelemetry 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.
import pickle
import unittest
from opentelemetry import trace
class TestSpanContext(unittest.TestCase):
def test_span_context_pickle(self):
"""
SpanContext needs to be pickleable to support multiprocessing
so span can start as parent from the new spawned process
"""
sc = trace.SpanContext(
1,
2,
is_remote=False,
trace_flags=trace.DEFAULT_TRACE_OPTIONS,
trace_state=trace.DEFAULT_TRACE_STATE,
)
pickle_sc = pickle.loads(pickle.dumps(sc))
self.assertEqual(sc.trace_id, pickle_sc.trace_id)
self.assertEqual(sc.span_id, pickle_sc.span_id)
invalid_sc = trace.SpanContext(
9999999999999999999999999999999999999999999999999999999999999999999999999999,
9,
is_remote=False,
trace_flags=trace.DEFAULT_TRACE_OPTIONS,
trace_state=trace.DEFAULT_TRACE_STATE,
)
self.assertFalse(invalid_sc.is_valid)
def test_trace_id_validity(self):
trace_id_max_value = int("f" * 32, 16)
span_id = 1
# valid trace IDs
sc = trace.SpanContext(trace_id_max_value, span_id, is_remote=False)
self.assertTrue(sc.is_valid)
sc = trace.SpanContext(1, span_id, is_remote=False)
self.assertTrue(sc.is_valid)
# invalid trace IDs
sc = trace.SpanContext(0, span_id, is_remote=False)
self.assertFalse(sc.is_valid)
sc = trace.SpanContext(-1, span_id, is_remote=False)
self.assertFalse(sc.is_valid)
sc = trace.SpanContext(
trace_id_max_value + 1, span_id, is_remote=False
)
self.assertFalse(sc.is_valid)
def test_span_id_validity(self):
span_id_max = int("f" * 16, 16)
trace_id = 1
# valid span IDs
sc = trace.SpanContext(trace_id, span_id_max, is_remote=False)
self.assertTrue(sc.is_valid)
sc = trace.SpanContext(trace_id, 1, is_remote=False)
self.assertTrue(sc.is_valid)
# invalid span IDs
sc = trace.SpanContext(trace_id, 0, is_remote=False)
self.assertFalse(sc.is_valid)
sc = trace.SpanContext(trace_id, -1, is_remote=False)
self.assertFalse(sc.is_valid)
sc = trace.SpanContext(trace_id, span_id_max + 1, is_remote=False)
self.assertFalse(sc.is_valid)
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