test(express): narrow loopback phase-sorting setup by BridgeAR · Pull Request #9291 · DataDog/dd-trace-js

BridgeAR · 2026-07-10T21:59:32Z

Summary

The Express/LoopBack compatibility test loaded LoopBack's public entry even though it only exercises the Express phase sorter. That entry eagerly initializes the model, connector, and remoting stack, so cold module loading could push synchronous setup past Mocha's five-second limit. Load the owning server-app module directly while keeping the real LoopBack sorting and HTTP assertions.

dd-octo-sts · 2026-07-10T22:00:29Z

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-prod-us1-5 · 2026-07-10T22:13:06Z

Tests

🎉 All green!

🧪 All tests passed
❄️ No new flaky tests detected

🎯 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: d61e175 | Docs | Datadog PR Page | Give us feedback!}

pr-commenter · 2026-07-10T22:14:26Z

Benchmarks

Benchmark execution time: 2026-07-14 21:18:35

Comparing candidate commit d61e175 in PR branch BridgeAR/2026-07-10-fix-express-loopback-timeout with baseline commit 1abef82 in branch master.

📊 Benchmarking dashboard

Found 0 performance improvements and 0 performance regressions! Performance is the same for 2314 metrics, 44 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 [-216.671ms; +212.292ms] or [-8.170%; +8.005%]

scenario:appsec-appsec-enabled-26

unstable execution_time [-243.232ms; +237.574ms] or [-9.472%; +9.252%]

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

unstable execution_time [-157310.760µs; +157316.427µs] or [-5.094%; +5.094%]

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

unstable execution_time [-189555.833µs; +188742.367µs] or [-6.522%; +6.494%]

scenario:appsec-control-20

unstable execution_time [-124.461ms; +120.857ms] or [-7.605%; +7.384%]

scenario:appsec-control-24

unstable execution_time [-109145.080µs; +108659.214µs] or [-8.788%; +8.749%]

scenario:appsec-control-26

unstable execution_time [-125.895ms; +128.187ms] or [-10.157%; +10.342%]

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

unstable execution_time [-12.665ms; +20.465ms] or [-4.836%; +7.814%]

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

unstable execution_time [-17.253ms; +12.030ms] or [-6.742%; +4.701%]

scenario:appsec-iast-no-vulnerability-iast-enabled-default-config-20

unstable execution_time [-17123.901µs; +18544.549µs] or [-6.624%; +7.174%]

scenario:appsec-iast-with-vulnerability-control-20

unstable execution_time [-28333.635µs; +29513.369µs] or [-5.152%; +5.367%]

scenario:appsec-iast-with-vulnerability-iast-enabled-always-active-20

unstable execution_time [-27.612ms; +30.171ms] or [-4.947%; +5.406%]

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

unstable execution_time [-35541.916µs; +34434.449µs] or [-6.420%; +6.220%]

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

unstable cpu_user_time [-3.352s; -0.002s] or [-35.867%; -0.016%]
unstable execution_time [-3.381s; +0.021s] or [-33.531%; +0.204%]
unstable instructions [-28.7G instructions; +0.0G instructions] or [-37.278%; +0.019%]
unstable throughput [-10.692op/s; +918.445op/s] or [-0.318%; +27.295%]

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

unstable cpu_user_time [-3.577s; +0.504s] or [-34.660%; +4.884%]
unstable execution_time [-3.660s; +0.536s] or [-33.042%; +4.843%]
unstable instructions [-31.6G instructions; +4.1G instructions] or [-36.549%; +4.785%]
unstable throughput [-111.621op/s; +701.479op/s] or [-3.628%; +22.799%]

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

unstable cpu_user_time [-2.112s; +4.408s] or [-23.880%; +49.843%]
unstable execution_time [-2.180s; +4.534s] or [-22.825%; +47.465%]
unstable instructions [-17.4G instructions; +37.4G instructions] or [-24.011%; +51.582%]
unstable max_rss_usage [-8.722MB; +18.079MB] or [-5.472%; +11.343%]
unstable throughput [-1204.973op/s; +594.140op/s] or [-34.172%; +16.849%]

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

unstable cpu_user_time [-2665.215ms; +4165.022ms] or [-27.966%; +43.704%]
unstable execution_time [-2819.880ms; +4294.690ms] or [-27.530%; +41.928%]
unstable instructions [-23.3G instructions; +36.8G instructions] or [-29.307%; +46.215%]
unstable max_rss_usage [-7.698MB; +13.366MB] or [-4.829%; +8.385%]
unstable throughput [-828.706op/s; +563.697op/s] or [-25.552%; +17.381%]

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

unstable cpu_user_time [-2.686s; +5.768s] or [-26.069%; +55.990%]
unstable execution_time [-2.797s; +5.922s] or [-25.319%; +53.599%]
unstable instructions [-23.8G instructions; +51.2G instructions] or [-27.482%; +59.176%]
unstable max_rss_usage [-7.139MB; +18.307MB] or [-4.399%; +11.280%]
unstable throughput [-1151.076op/s; +550.550op/s] or [-37.349%; +17.863%]

scenario:dogstatsd-with-tags-20

unstable cpu_user_time [-198.555ms; +428.659ms] or [-4.110%; +8.874%]
unstable execution_time [-203.580ms; +424.861ms] or [-4.146%; +8.653%]
unstable throughput [-150543.331op/s; +71653.573op/s] or [-8.812%; +4.194%]

scenario:plugin-graphql-long-with-depth-and-collapse-off-20

unstable max_rss_usage [-23.833MB; +44.087MB] or [-6.311%; +11.675%]

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

unstable cpu_user_time [-701.905ms; +763.434ms] or [-5.468%; +5.947%]
unstable execution_time [-703.891ms; +769.297ms] or [-5.364%; +5.862%]
unstable throughput [-3.531op/s; +3.233op/s] or [-5.755%; +5.270%]

scenario:test-optimization-large-suite-20

unstable max_rss_usage [-6404.196KB; +6311.196KB] or [-7.753%; +7.641%]

codecov · 2026-07-10T22:16:08Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.54%. Comparing base (1abef82) to head (d61e175).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9291      +/-   ##
==========================================
- Coverage   96.64%   96.54%   -0.11%     
==========================================
  Files         923      922       -1     
  Lines      122844   122791      -53     
  Branches    20989    21215     +226     
==========================================
- Hits       118723   118548     -175     
- Misses       4121     4243     +122

Flag	Coverage Δ
aiguard	`53.65% <ø> (-0.05%)`	⬇️
aiguard-integration	`57.10% <ø> (ø)`
apm-bucket-0	`53.88% <ø> (-0.05%)`	⬇️
apm-bucket-1	`58.45% <ø> (-0.05%)`	⬇️
apm-bucket-2	`56.18% <ø> (-0.05%)`	⬇️
apm-capabilities-tracing	`60.62% <ø> (ø)`
apm-integrations-aerospike	`53.03% <ø> (-0.05%)`	⬇️
apm-integrations-confluentinc-kafka-javascript	`57.12% <ø> (-0.12%)`	⬇️
apm-integrations-couchbase	`53.37% <ø> (-0.05%)`	⬇️
apm-integrations-http	`58.04% <ø> (-0.05%)`	⬇️
apm-integrations-kafkajs	`57.83% <ø> (-0.05%)`	⬇️
apm-integrations-next	`54.26% <ø> (-0.05%)`	⬇️
apm-integrations-prisma	`54.26% <ø> (-0.05%)`	⬇️
apm-integrations-tedious	`53.12% <ø> (-0.06%)`	⬇️
appsec	`68.86% <ø> (-0.05%)`	⬇️
appsec-express_fastify_graphql	`65.73% <ø> (-0.04%)`	⬇️
appsec-integration	`51.95% <ø> (ø)`
appsec-kafka_ldapjs_lodash	`59.17% <ø> (-0.04%)`	⬇️
appsec-mongodb-core_mongoose_mysql	`62.40% <ø> (-0.04%)`	⬇️
appsec-next	`52.88% <ø> (-0.04%)`	⬇️
appsec-node-serialize_passport_postgres	`62.04% <ø> (-0.04%)`	⬇️
appsec-sourcing_stripe_template	`60.43% <ø> (-0.04%)`	⬇️
debugger	`65.70% <ø> (-0.02%)`	⬇️
instrumentations-bucket-0	`48.88% <ø> (-0.05%)`	⬇️
instrumentations-bucket-1	`55.08% <ø> (-0.05%)`	⬇️
instrumentations-bucket-10	`56.71% <ø> (-0.05%)`	⬇️
instrumentations-bucket-11	`48.87% <ø> (-0.05%)`	⬇️
instrumentations-bucket-12	`49.05% <ø> (-0.05%)`	⬇️
instrumentations-bucket-13	`48.81% <ø> (-0.05%)`	⬇️
instrumentations-bucket-2	`50.02% <ø> (-0.05%)`	⬇️
instrumentations-bucket-3	`53.99% <ø> (-0.05%)`	⬇️
instrumentations-bucket-4	`49.29% <ø> (-0.05%)`	⬇️
instrumentations-bucket-5	`53.16% <ø> (-0.05%)`	⬇️
instrumentations-bucket-6	`55.73% <ø> (-0.05%)`	⬇️
instrumentations-bucket-7	`53.63% <ø> (-0.05%)`	⬇️
instrumentations-bucket-8	`54.76% <ø> (-0.05%)`	⬇️
instrumentations-bucket-9	`56.19% <ø> (-0.04%)`	⬇️
instrumentations-instrumentation-couchbase	`48.27% <ø> (-0.05%)`	⬇️
instrumentations-integration-esbuild	`34.07% <ø> (ø)`
llmobs-ai_anthropic_bedrock	`57.77% <ø> (-0.04%)`	⬇️
llmobs-bucket-1	`57.11% <ø> (-0.04%)`	⬇️
llmobs-openai	`57.50% <ø> (-0.04%)`	⬇️
llmobs-sdk	`60.07% <ø> (-0.05%)`	⬇️
llmobs-vertex-ai	`54.31% <ø> (-0.05%)`	⬇️
master-coverage	`96.54% <ø> (?)`
openfeature	`54.70% <ø> (-0.01%)`	⬇️
openfeature-unit	`49.91% <ø> (-0.05%)`	⬇️
platform-core_esbuild_instrumentations-misc	`38.54% <ø> (-0.03%)`	⬇️
platform-integration	`62.33% <ø> (ø)`
platform-shimmer_unit-guardrails_webpack	`37.33% <ø> (-0.03%)`	⬇️
plugins-bucket-0	`53.26% <ø> (-0.04%)`	⬇️
plugins-bucket-1	`55.20% <ø> (ø)`
plugins-bucket-11	`57.53% <ø> (-0.04%)`	⬇️
plugins-bucket-18	`57.14% <ø> (-0.05%)`	⬇️
plugins-bucket-19	`55.44% <ø> (-0.05%)`	⬇️
plugins-bucket-20	`57.66% <ø> (-0.05%)`	⬇️
plugins-bucket-4	`53.87% <ø> (-0.05%)`	⬇️
plugins-bullmq_cassandra_cookie	`57.47% <ø> (-0.05%)`	⬇️
plugins-cookie-parser_crypto_dd-trace-api	`52.42% <ø> (-0.05%)`	⬇️
plugins-fetch_fs_generic-pool	`54.59% <ø> (-0.13%)`	⬇️
plugins-google-cloud-pubsub_grpc_handlebars	`59.92% <ø> (-0.05%)`	⬇️
plugins-hapi_hono_ioredis	`55.86% <ø> (-0.05%)`	⬇️
plugins-jest_knex_langgraph	`51.77% <ø> (-0.05%)`	⬇️
plugins-ldapjs_light-my-request_limitd-client	`53.51% <ø> (-0.07%)`	⬇️
plugins-lodash_mariadb_memcached	`54.30% <ø> (-0.05%)`	⬇️
plugins-moleculer_mongodb_mongodb-core	`57.40% <ø> (-0.05%)`	⬇️
plugins-mongoose_multer_mysql	`54.79% <ø> (-0.05%)`	⬇️
plugins-mysql2_nats_node-serialize	`56.33% <ø> (-0.05%)`	⬇️
plugins-opensearch_passport-http_pino	`55.19% <ø> (-0.05%)`	⬇️
plugins-postgres_process_pug	`54.38% <ø> (-0.05%)`	⬇️
plugins-redis_router_sequelize	`57.19% <ø> (-0.04%)`	⬇️
plugins-test-and-upstream-rhea_undici_url	`57.04% <ø> (-0.05%)`	⬇️
plugins-valkey_vm_winston	`53.94% <ø> (-0.13%)`	⬇️
plugins-ws	`54.93% <ø> (-0.04%)`	⬇️
profiling	`58.26% <ø> (-0.04%)`	⬇️
serverless-aws-sdk-aws-sdk	`50.78% <ø> (-0.04%)`	⬇️
serverless-aws-sdk-bedrockruntime	`50.75% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-client	`52.09% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-dynamodb	`51.83% <ø> (-0.02%)`	⬇️
serverless-aws-sdk-eventbridge	`46.46% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-kinesis	`54.79% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-lambda	`52.87% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-s3	`51.59% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-serverless-peer-service	`54.82% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-sns	`55.54% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-sqs	`56.02% <ø> (-0.09%)`	⬇️
serverless-aws-sdk-stepfunctions	`51.36% <ø> (-0.05%)`	⬇️
serverless-aws-sdk-util	`48.54% <ø> (-0.05%)`	⬇️
serverless-bucket-0	`55.24% <ø> (ø)`
serverless-bucket-1	`56.06% <ø> (-0.05%)`	⬇️
test-optimization-cucumber	`72.98% <ø> (+0.06%)`	⬆️
test-optimization-cypress	`66.30% <ø> (+0.01%)`	⬆️
test-optimization-jest	`74.28% <ø> (-0.05%)`	⬇️
test-optimization-mocha	`74.68% <ø> (+0.04%)`	⬆️
test-optimization-playwright-playwright-atr	`61.50% <ø> (-0.01%)`	⬇️
test-optimization-playwright-playwright-efd	`61.68% <ø> (ø)`
test-optimization-playwright-playwright-final-status	`61.66% <ø> (-0.01%)`	⬇️
test-optimization-playwright-playwright-impacted-tests	`61.60% <ø> (+0.38%)`	⬆️
test-optimization-playwright-playwright-reporting	`61.27% <ø> (-0.01%)`	⬇️
test-optimization-playwright-playwright-test-management	`62.23% <ø> (-0.12%)`	⬇️
test-optimization-playwright-playwright-test-span	`61.41% <ø> (-0.06%)`	⬇️
test-optimization-selenium	`60.71% <ø> (-0.11%)`	⬇️
test-optimization-testopt	`?`
test-optimization-vitest	`71.45% <ø> (+0.07%)`	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

The LoopBack compatibility specs only exercise its Express phase sorter, but the public entry eagerly loads the model, connector, and remoting stack. Cold module loading can push the synchronous setup hook past five seconds, so load the owner module directly and let the normal timeout guard regressions.

Real applications load LoopBack through its public entry once during bootstrap. Keep that path in the compatibility test and give its eager initialization ten seconds without repeating the work for every case.

github-actions Bot added the semver-patch label Jul 10, 2026

BridgeAR added 2 commits July 14, 2026 23:01

test(express): exercise loopback public entry

d61e175

Real applications load LoopBack through its public entry once during bootstrap. Keep that path in the compatibility test and give its eager initialization ten seconds without repeating the work for every case.

BridgeAR force-pushed the BridgeAR/2026-07-10-fix-express-loopback-timeout branch from 24b3fb3 to d61e175 Compare July 14, 2026 21:04

BridgeAR marked this pull request as ready for review July 14, 2026 21:06

BridgeAR requested a review from a team as a code owner July 14, 2026 21:06

BridgeAR requested review from crysmags and removed request for a team July 14, 2026 21:06

rochdev approved these changes Jul 15, 2026

View reviewed changes

BridgeAR merged commit f0edfec into master Jul 16, 2026
737 of 739 checks passed

BridgeAR deleted the BridgeAR/2026-07-10-fix-express-loopback-timeout branch July 16, 2026 00:14

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

v6.4.0 proposal #9368

Merged

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

v5.115.0 proposal #9369

Merged

Uh oh!

Conversation

BridgeAR commented Jul 10, 2026

Summary

Uh oh!

dd-octo-sts Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Overall package size

Uh oh!

datadog-prod-us1-5 Bot commented Jul 10, 2026 • edited by datadog-prod-us1-3 Bot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

pr-commenter Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

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-no-vulnerability-iast-enabled-default-config-20

scenario:appsec-iast-with-vulnerability-control-20

scenario:appsec-iast-with-vulnerability-iast-enabled-always-active-20

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

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

scenario:dogstatsd-with-tags-20

scenario:plugin-graphql-long-with-depth-and-collapse-off-20

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

scenario:test-optimization-large-suite-20

Uh oh!

codecov Bot commented Jul 10, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

2 participants

dd-octo-sts Bot commented Jul 10, 2026 •

edited

Loading

datadog-prod-us1-5 Bot commented Jul 10, 2026 •

edited by datadog-prod-us1-3 Bot

Loading

pr-commenter Bot commented Jul 10, 2026 •

edited

Loading

codecov Bot commented Jul 10, 2026 •

edited

Loading