test(mongodb): await traced operations - #9822
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DBM propagation traces finish from the driver callback, but these tests discarded that callback and failed after the agent's 1s deadline when the operation ran slowly. Await the operation alongside the trace so backend errors surface, and give trace delivery the same 2s allowance already used by MongoDB tests. Refs: https://github.com/DataDog/dd-trace-js/actions/runs/31803050571/job/94775323451?pr=9633
MongoDB query spans finish from driver callbacks or returned promises, but the remaining trace assertions discarded that operation completion. Await both boundaries so slow operations receive the suite's existing two-second allowance and unexpected backend errors fail their owning test. Keep command completion and BSON fixtures aligned with the driver versions whose results are now observed. This is test-only; production code is unchanged.
Overall package sizeSelf size: 8.2 MB Dependency sizes| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 3.3.3 | 125.43 kB | 441.72 kB | | opentracing | 0.14.7 | 194.81 kB | 194.81 kB | | dc-polyfill | 0.1.11 | 25.74 kB | 25.74 kB |🤖 This report was automatically generated by heaviest-objects-in-the-universe |
🎉 All green!🧪 All tests passed 🎯 Code Coverage (details) 🔗 Commit SHA: 4717f90 | Docs | Datadog PR Page | Give us feedback! |
BenchmarksBenchmark execution time: 2026-08-14 19:19:22 Comparing candidate commit 4717f90 in PR branch Found 0 performance improvements and 0 performance regressions! Performance is the same for 2282 metrics, 10 unstable metrics.
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MongoDB changes command-rejection messages and codes between server versions while trace behavior stays the same. Matching server-owned prose made these tests fail before they could validate tracing.
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #9822 +/- ##
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Coverage 98.53% 98.53%
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Files 975 975
Lines 144148 144148
Branches 12475 13020 +545
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MongoDB query spans finish from the driver callback or returned promise. Thirty-one tests discarded that completion signal and waited only for the mock-agent trace, so slow operations could hit the default one-second deadline before span completion. The same pattern also hid driver rejections behind trace timeouts.
Await each operation and trace together, use the existing two-second Mongo trace allowance, and build BSON fixtures with the active driver where MongoDB 5 and newer reject BSON values from an older package.