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add assertTraceResponseHeaderMatchesSpan method #2159

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Sep 29, 2021
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17 changes: 17 additions & 0 deletions tests/util/src/opentelemetry/test/wsgitestutil.py
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
import io
import wsgiref.util as wsgiref_util

from opentelemetry import trace
from opentelemetry.test.spantestutil import SpanTestBase


Expand All @@ -37,3 +38,19 @@ def start_response(self, status, response_headers, exc_info=None):
self.response_headers = response_headers
self.exc_info = exc_info
return self.write

def assertTraceResponseHeaderMatchesSpan(
self, headers, span
): # pylint: disable=invalid-name
self.assertIn("traceresponse", headers)
self.assertEqual(
headers["access-control-expose-headers"],
"traceresponse",
)

trace_id = trace.format_trace_id(span.get_span_context().trace_id)
span_id = trace.format_span_id(span.get_span_context().span_id)
self.assertEqual(
f"00-{trace_id}-{span_id}-01",
headers["traceresponse"],
)