test(profiling): add function name length tests

[realFlowControl]

Description

Re-adds the tests that got removed in #3570 and fixes the linking problem. You may review commit by commit.

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[datadog-official]

⚠️ Tests

✨ Fix all issues with Cursor

⚠️ Warnings

❄️ 2 New flaky tests detected

testUserLoginFailureEvent from symfony-44-test.DDTrace\Tests\Integrations\Symfony\V4_4\AutomatedLoginEventsTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Symfony\V4_4\AutomatedLoginEventsTest::testUserLoginFailureEvent
Failed asserting that 0 matches expected 1.

tests/Integrations/Symfony/AutomatedLoginEventsTestSuite.php:74
tests/Common/RetryTraitVersionGeneric.php:28
phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:106

testUserLoginSuccessEvent from symfony-44-test.DDTrace\Tests\Integrations\Symfony\V4_4\AutomatedLoginEventsTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Symfony\V4_4\AutomatedLoginEventsTest::testUserLoginSuccessEvent
Failed asserting that 0 matches expected 1.

tests/Integrations/Symfony/AutomatedLoginEventsTestSuite.php:56
tests/Common/RetryTraitVersionGeneric.php:28
phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:106

🧪 1022 Tests failed

    testSearchPhpBinaries from integration.DDTrace\Tests\Integration\PHPInstallerTest (Fix with Cursor)

    testSimplePushAndProcess from laravel-58-test.DDTrace\Tests\Integrations\Laravel\V5_8\QueueTest (Fix with Cursor)

testSimplePushAndProcess from laravel-8x-test.DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest (Datadog) (Fix with Cursor)

DDTrace\Tests\Integrations\Laravel\V8_x\QueueTest::testSimplePushAndProcess
Test code or tested code printed unexpected output: spanLinksTraceId: 696a9a2600000000a5bfa0272bf7c0e8
tid: 696a9a2600000000
hexProcessTraceId: a5bfa0272bf7c0e8
hexProcessSpanId: b27edf06bd49af9f
processTraceId: 11943440826911670504
processSpanId: 12861962805855235999

phpvfscomposer://tests/vendor/phpunit/phpunit/phpunit:106

View all

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 63decfd | Docs | Datadog PR Page | Was this helpful? Give us feedback!}

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.92%. Comparing base (ed3089e) to head (63decfd).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3571      +/-   ##
==========================================
- Coverage   62.02%   61.92%   -0.11%     
==========================================
  Files         140      140              
  Lines       13309    13309              
  Branches     1762     1762              
==========================================
- Hits         8255     8241      -14     
- Misses       4265     4278      +13     
- Partials      789      790       +1     

see 3 files with indirect coverage changes

---

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[pr-commenter]

Benchmarks [ profiler ]

Benchmark execution time: 2026-01-16 19:11:05

Comparing candidate commit 63decfd in PR branch florian/function-name-length-tests with baseline commit ed3089e in branch master.

Found 0 performance improvements and 1 performance regressions! Performance is the same for 27 metrics, 8 unstable metrics.

scenario:php-profiler-timeline-memory-with-profiler-and-timeline

• 🟥 execution_time [+25.323ms; +38.159ms] or [+2.057%; +3.100%]

[morrisonlevi]

Hey, I added a commit to make a zend_string_alloc equivalent helper and then nudge it closer to what the engine really does. Please check it out before merging. Rest looks good to me! We're hitting the rate limit but these were passing before, I can't see how I messed them up.

#2 ERROR: failed to copy: httpReadSeeker: failed open: unexpected status code https://registry-1.docker.io/v2/datadog/dd-appsec-php-ci/manifests/sha256:15a9e23372df35fbb9c587ef7d3ec69be4b134be9742e108a70999f081e75e53: 429 Too Many Requests - Server message: toomanyrequests: You have reached your unauthenticated pull rate limit. https://www.docker.com/increase-rate-limit