test(integration): add ci coverage scripts and wire integration coverage

[watson]

What does this PR do?

Adds integration test coverage collection via new test:integration*:ci scripts, a dedicated nyc config, and CI updates to run coverage-enabled suites.

Motivation

Integration tests cover code that’s hard to unit test; this adds opt-in coverage for those suites without slowing local runs.

Additional Notes

Coverage reports land in coverage/integration-<suite> with raw output in .nyc_output/integration-<suite>.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.34%. Comparing base (033993d) to head (9f02d43).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7253      +/-   ##
==========================================
- Coverage   85.13%   78.34%   -6.80%     
==========================================
  Files         532      524       -8     
  Lines       22654    22574      -80     
==========================================
- Hits        19287    17685    -1602     
- Misses       3367     4889    +1522     

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[watson]

• test(integration): add ci coverage scripts and wire integration coverage #7253 👈 (View in Graphite)
• master

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

Overall package size

Self size: 4.39 MB
Deduped: 5.22 MB
No deduping: 5.22 MB

Dependency sizes

| name | version | self size | total size | |------|---------|-----------|------------| | import-in-the-middle | 2.0.0 | 68.46 kB | 797.03 kB | | dc-polyfill | 0.1.10 | 26.73 kB | 26.73 kB |

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[datadog-datadog-prod-us1]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

🧪 25 Tests failed

telemetry dependencies Assert configuration chaining data is sent from dependencies (Datadog) (Fix with Cursor)

timeout

Error: timeout
    at Timeout.<anonymous> (integration-tests/helpers/fake-agent.js:200:20)
    at listOnTimeout (node:internal/timers:588:17)
    at process.processTimers (node:internal/timers:523:7)

telemetry dependencies Test that tracer and iitm are sent as dependencies from dependencies (Datadog) (Fix with Cursor)

timeout

Error: timeout
    at Timeout.<anonymous> (integration-tests/helpers/fake-agent.js:200:20)
    at listOnTimeout (node:internal/timers:588:17)
    at process.processTimers (node:internal/timers:523:7)

    Endpoints collection should send express endpoints via telemetry from Endpoints collection (Fix with Cursor)

View all

ℹ️ Info

❄️ No new flaky tests detected

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 9f02d43 | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[pr-commenter]

Benchmarks

Benchmark execution time: 2026-01-16 08:57:58

Comparing candidate commit 9f02d43 in PR branch watson/code-coverage-in-integration-tests with baseline commit 033993d in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 289 metrics, 31 unstable metrics.