tests: http_client_chunked: Plug SEGV occurence on macOS

[cosmo0920]

http_client_chunked test case is always failing on macOS due to uninitialized conroutine on the test case.
We need to ensure initializing coroutine before running the actual assertions.

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Testing
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Summary by CodeRabbit

• Tests
  • Updated test infrastructure for coroutine support initialization.

No user-facing changes in this update.

[coderabbitai]

📝 Walkthrough

Walkthrough

A test file for HTTP client chunking adds coroutine support initialization. A file-local guard ensures flb_coro_init() runs once, while each context creation calls flb_coro_thread_init() after event-loop setup. No public behavior changes.

Changes

Cohort / File(s)	Summary
Coroutine Initialization in Test Context tests/runtime/http_client_chunked.c	Added coroutine setup: included flb_coro.h, introduced static guard to call flb_coro_init() once, and ensured per-context flb_coro_thread_init() invocation after event-loop initialization.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested reviewers

• edsiper

Poem

🐰 A tiny init guard stands proud and tall,
Ensuring coros wake but once for all,
Each context blooms with threaded cheer,
The test now dances, crystal clear! ✨

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: fixing a segmentation fault in the http_client_chunked test on macOS by initializing coroutines.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch comos0920-plug-segv-on-chunked-test-case

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@tests/runtime/http_client_chunked.c`:
- Around line 172-175: The if-statement that initializes coroutines uses an
opening brace on the same line; update the formatting to place the opening brace
on the next line to follow the project C style for control blocks: locate the
check using coro_initialized and the call flb_coro_init() and reformat the if
(coro_initialized == FLB_FALSE) to put the brace on the next line while keeping
the existing body and logic unchanged.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 6fa31279-781d-4018-9b25-7fe92cbb928b

📥 Commits

Reviewing files that changed from the base of the PR and between 63ed88e and 893c9fd.

📒 Files selected for processing (1)

• tests/runtime/http_client_chunked.c