test(agent): make no-traces timeout test deterministic by BridgeAR · Pull Request #9372 · DataDog/dd-trace-js

BridgeAR · 2026-07-15T11:00:13Z

Summary

Node does not guarantee that Date.now() reports the full delay when a setTimeout() callback runs, so the exact 200 ms lower bound occasionally observed 199 ms. Fake timers now pin the pending and settled states at 199 ms and 200 ms without depending on scheduler timing.

Node does not guarantee that Date.now() reports the full delay when a setTimeout callback runs, so the exact 200 ms lower bound occasionally observed 199 ms. Advancing fake timers across the 199/200 ms boundary pins the contract without depending on scheduler timing.

dd-octo-sts · 2026-07-15T11:01:00Z

Overall package size

Self size: 6.76 MB
Deduped: 7.42 MB
No deduping: 7.42 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 3.3.1 | 122.62 kB | 438.86 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}

datadog-datadog-prod-us1-2 · 2026-07-15T11:04:20Z

Tests

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🔄 Datadog retried 1 test - 1 passed on retry

🔄 Datadog auto-retried 1 job - 0 passed on retry

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 96.61% (+0.00%)

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: 3289f69 | Docs | Datadog PR Page | Give us feedback!}

pr-commenter · 2026-07-15T11:12:59Z

Benchmarks

Benchmark execution time: 2026-07-15 11:12:54

Comparing candidate commit 3289f69 in PR branch BridgeAR/2026-07-15-fix-agent-no-traces-flake with baseline commit 3721357 in branch master.

📊 Benchmarking dashboard

Found 0 performance improvements and 0 performance regressions! Performance is the same for 2316 metrics, 42 unstable metrics.

Explanation

This is an A/B test comparing a candidate commit's performance against that of a baseline commit. Performance changes are noted in the tables below as:

🟩 = significantly better candidate vs. baseline
🟥 = significantly worse candidate vs. baseline

We compute a confidence interval (CI) over the relative difference of means between metrics from the candidate and baseline commits, considering the baseline as the reference.

If the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD), the change is considered significant.

Feel free to reach out to #apm-benchmarking-platform on Slack if you have any questions.

More details about the CI and significant changes

You can imagine this CI as a range of values that is likely to contain the true difference of means between the candidate and baseline commits.

CIs of the difference of means are often centered around 0%, because often changes are not that big:

---------------------------------(------|---^--------)-------------------------------->
                              -0.6%    0%  0.3%     +1.2%
                                 |          |        |
         lower bound of the CI --'          |        |
sample mean (center of the CI) -------------'        |
         upper bound of the CI ----------------------'

As described above, a change is considered significant if the CI is entirely outside the configured SIGNIFICANT_IMPACT_THRESHOLD (or the deprecated UNCONFIDENCE_THRESHOLD).

For instance, for an execution time metric, this confidence interval indicates a significantly worse performance:

----------------------------------------|---------|---(---------^---------)---------->
                                       0%        1%  1.3%      2.2%      3.1%
                                                  |   |         |         |
       significant impact threshold --------------'   |         |         |
                      lower bound of CI --------------'         |         |
       sample mean (center of the CI) --------------------------'         |
                      upper bound of CI ----------------------------------'

Unstable benchmarks

These benchmarks have a confidence interval too wide to call a change; treat them as noise rather than signal.

scenario:appsec-appsec-enabled-24

unstable execution_time [-215720.066µs; +216272.333µs] or [-8.084%; +8.105%]

scenario:appsec-appsec-enabled-26

unstable execution_time [-233644.864µs; +235139.964µs] or [-9.130%; +9.188%]

scenario:appsec-appsec-enabled-with-attacks-24

unstable execution_time [-159.631ms; +164.192ms] or [-5.160%; +5.307%]

scenario:appsec-appsec-enabled-with-attacks-26

unstable execution_time [-195.741ms; +186.821ms] or [-6.719%; +6.413%]

scenario:appsec-control-20

unstable execution_time [-115.561ms; +137.208ms] or [-7.031%; +8.348%]

scenario:appsec-control-24

unstable execution_time [-110.214ms; +112.958ms] or [-8.872%; +9.093%]

scenario:appsec-control-26

unstable execution_time [-111.838ms; +139.608ms] or [-9.110%; +11.372%]

scenario:appsec-iast-no-vulnerability-control-20

unstable execution_time [-15411.561µs; +14190.694µs] or [-6.022%; +5.545%]

scenario:appsec-iast-no-vulnerability-iast-enabled-always-active-20

unstable execution_time [-9.015ms; +23.028ms] or [-3.531%; +9.020%]

scenario:appsec-iast-with-vulnerability-iast-enabled-default-config-20

unstable execution_time [-23.235ms; +32.349ms] or [-4.222%; +5.878%]

scenario:child_process-shell-string-24

unstable execution_time [-15.495ms; +24.604ms] or [-4.743%; +7.531%]

scenario:debugger-line-probe-with-snapshot-default-26

unstable cpu_user_time [-2232.994ms; +750.224ms] or [-23.468%; +7.885%]
unstable execution_time [-2286.538ms; +724.043ms] or [-22.275%; +7.053%]
unstable instructions [-20.2G instructions; +6.7G instructions] or [-25.346%; +8.393%]
unstable throughput [-145.216op/s; +455.802op/s] or [-4.500%; +14.123%]

scenario:debugger-line-probe-with-snapshot-minimal-24

unstable cpu_user_time [-3066.371ms; +2006.717ms] or [-33.263%; +21.768%]
unstable execution_time [-3116.591ms; +2046.156ms] or [-31.334%; +20.572%]
unstable instructions [-26.1G instructions; +17.1G instructions] or [-34.411%; +22.565%]
unstable max_rss_usage [-12.832MB; +8.473MB] or [-7.989%; +5.275%]
unstable throughput [-589.272op/s; +872.283op/s] or [-17.355%; +25.690%]

scenario:debugger-line-probe-with-snapshot-minimal-26

unstable cpu_user_time [-3766.452ms; +5270.575ms] or [-29.933%; +41.886%]
unstable execution_time [-3861.359ms; +5389.680ms] or [-28.970%; +40.436%]
unstable instructions [-33.1G instructions; +46.7G instructions] or [-30.928%; +43.601%]
unstable max_rss_usage [-11.688MB; +16.673MB] or [-6.907%; +9.853%]
unstable throughput [-1056.954op/s; +781.004op/s] or [-40.116%; +29.642%]

scenario:debugger-line-probe-without-snapshot-24

unstable cpu_user_time [-1684.646ms; +588.410ms] or [-20.424%; +7.134%]
unstable execution_time [-1736.365ms; +625.537ms] or [-19.389%; +6.985%]
unstable instructions [-14.6G instructions; +4.8G instructions] or [-21.714%; +7.093%]
unstable throughput [-178.076op/s; +457.668op/s] or [-4.838%; +12.435%]

scenario:debugger-line-probe-without-snapshot-26

unstable cpu_user_time [-3.584s; +0.478s] or [-34.796%; +4.636%]
unstable execution_time [-3.605s; +0.515s] or [-32.710%; +4.676%]
unstable instructions [-31.6G instructions; +4.2G instructions] or [-36.567%; +4.891%]
unstable throughput [-107.217op/s; +702.350op/s] or [-3.472%; +22.745%]

scenario:dogstatsd-with-tags-20

unstable cpu_user_time [-412.562ms; +275.125ms] or [-8.477%; +5.653%]
unstable execution_time [-408.098ms; +276.514ms] or [-8.256%; +5.594%]
unstable throughput [-98705.472op/s; +144451.548op/s] or [-5.811%; +8.504%]

scenario:plugin-graphql-long-with-depth-on-max-20

unstable cpu_user_time [-726.667ms; +697.908ms] or [-5.657%; +5.433%]
unstable execution_time [-730.868ms; +703.291ms] or [-5.565%; +5.355%]
unstable throughput [-3.243op/s; +3.370op/s] or [-5.292%; +5.499%]

scenario:plugin-pg-service-26

unstable cpu_user_time [-33.030ms; +68.076ms] or [-3.696%; +7.618%]
unstable execution_time [-52.017ms; +60.508ms] or [-5.722%; +6.656%]

scenario:test-optimization-large-suite-20

unstable max_rss_usage [-5.263MB; +7.268MB] or [-6.492%; +8.965%]

codecov · 2026-07-15T11:28:22Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.64%. Comparing base (3721357) to head (3289f69).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9372   +/-   ##
=======================================
  Coverage   96.64%   96.64%           
=======================================
  Files         923      923           
  Lines      122844   122844           
  Branches    21042    21079   +37     
=======================================
  Hits       118725   118725           
  Misses       4119     4119

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Node does not guarantee that Date.now() reports the full delay when a setTimeout callback runs, so the exact 200 ms lower bound occasionally observed 199 ms. Advancing fake timers across the 199/200 ms boundary pins the contract without depending on scheduler timing.

github-actions Bot added the semver-patch label Jul 15, 2026

BridgeAR marked this pull request as ready for review July 15, 2026 11:02

BridgeAR requested a review from a team as a code owner July 15, 2026 11:02

BridgeAR requested review from bojbrook and removed request for a team July 15, 2026 11:02

pabloerhard approved these changes Jul 15, 2026

View reviewed changes

pabloerhard merged commit 1fb5af6 into master Jul 15, 2026
726 of 728 checks passed

pabloerhard deleted the BridgeAR/2026-07-15-fix-agent-no-traces-flake branch July 15, 2026 14:20

dd-octo-sts Bot mentioned this pull request Jul 16, 2026

v6.4.0 proposal #9368

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dd-octo-sts Bot mentioned this pull request Jul 16, 2026

v5.115.0 proposal #9369

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BridgeAR commented Jul 15, 2026

Summary

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dd-octo-sts Bot commented Jul 15, 2026

Overall package size

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datadog-datadog-prod-us1-2 Bot commented Jul 15, 2026 • edited by datadog-datadog-us1-prod Bot Loading Uh oh! There was an error while loading. Please reload this page.

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pr-commenter Bot commented Jul 15, 2026

Benchmarks

Explanation

More details about the CI and significant changes

Unstable benchmarks

scenario:appsec-appsec-enabled-24

scenario:appsec-appsec-enabled-26

scenario:appsec-appsec-enabled-with-attacks-24

scenario:appsec-appsec-enabled-with-attacks-26

scenario:appsec-control-20

scenario:appsec-control-24

scenario:appsec-control-26

scenario:appsec-iast-no-vulnerability-control-20

scenario:appsec-iast-no-vulnerability-iast-enabled-always-active-20

scenario:appsec-iast-with-vulnerability-iast-enabled-default-config-20

scenario:child_process-shell-string-24

scenario:debugger-line-probe-with-snapshot-default-26

scenario:debugger-line-probe-with-snapshot-minimal-24

scenario:debugger-line-probe-with-snapshot-minimal-26

scenario:debugger-line-probe-without-snapshot-24

scenario:debugger-line-probe-without-snapshot-26

scenario:dogstatsd-with-tags-20

scenario:plugin-graphql-long-with-depth-on-max-20

scenario:plugin-pg-service-26

scenario:test-optimization-large-suite-20

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datadog-datadog-prod-us1-2 Bot commented Jul 15, 2026 •

edited by datadog-datadog-us1-prod Bot

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