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tests: assert histogram/exp_histogram temporality survives in_opentelemetry -> out_opentelemetry round trip #12042

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tests: assert histogram/exp_histogram temporality survives in_opentelemetry -> out_opentelemetry round trip #12042

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6 changes: 6 additions & 0 deletions tests/integration/scenarios/in_opentelemetry/tests/test_in_opentelemetry_001.py
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Original file line number Diff line number Diff line change
Expand Up @@ -743,6 +743,12 @@ def test_opentelemetry_to_opentelemetry_histogram_and_gauge_metrics():
assert histogram_datapoint["explicitBounds"] == [100.0]
assert histogram_datapoint["attributes"][0]["key"] == "http.route"
assert histogram_datapoint["attributes"][0]["value"]["stringValue"] == "/checkout"
# test_metrics_002.in.json declares this histogram with
# aggregation_temporality=1 (DELTA). in_opentelemetry decodes it into
# cmetrics and out_opentelemetry re-encodes it after a round trip
# through Fluent Bit's internal msgpack storage; that temporality must
# survive the round trip unchanged.
assert histogram["aggregationTemporality"] == "AGGREGATION_TEMPORALITY_DELTA"

assert metrics["cpu.usage"]["scope_version"] == "2.0.0"
assert gauge_datapoint["asDouble"] == 0.82
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