Add non-HttpSM tests for acquireSession

[JosiahWI]

This patch includes a few simple test cases for acquireSession. They cover only the behavior which does not require an HttpSM object.

[Copilot]

Pull request overview

Adds Catch2 unit coverage for ServerSessionPool::acquireSession() paths that do not require an HttpSM instance, and updates the public header documentation to better describe the API’s selection behavior.

Changes:

• Add a new test_HttpSessionManager.cc exercising acquireSession() matching behavior for IP-only, host-only, and combined masks.
• Wire the new unit test file into the test_http target.
• Expand / clarify ServerSessionPool::acquireSession() documentation in HttpSessionManager.h.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
src/proxy/http/unit_tests/test_HttpSessionManager.cc	New Catch2 unit tests for ServerSessionPool::acquireSession() without HttpSM.
src/proxy/http/unit_tests/CMakeLists.txt	Adds the new test source to the test_http executable.
include/proxy/http/HttpSessionManager.h	Updates the doxygen comment for acquireSession() to clarify behavior and constraints.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (2)

include/proxy/http/HttpSessionManager.h:104

• The sm parameter docs currently say it is only consulted for SNI/certificate validation when the corresponding bits are set in match_style, but acquireSession() also calls validate_session_origin_cert(sm, ...) unconditionally. For multiplexing sessions this dereferences sm for origin certificate hostname verification regardless of match_style, so the docs should reflect that broader usage (or explicitly state sm must be non-null when multiplexing sessions may be present).

   * @param[in]  sm             The requesting HTTP state machine; consulted for SNI and certificate
   *                            validation when the corresponding bits are set in @p match_style.

src/proxy/http/unit_tests/test_HttpSessionManager.cc:209

• In this section, acquired is set by a successful DONE acquisition and then reused in a NOT_FOUND acquisition, but the test doesn't assert that acquireSession() clears the output parameter on failure. Adding a CHECK(acquired == nullptr) here would verify the documented out-parameter contract for the non-null -> null transition.

      CHECK(acquired == session);

      // A non-multiplexing session is handed off, not shared: it leaves both pools.
      CHECK(pool.count() == 0);
      CHECK(pool.acquireSession(Addr{"10.0.0.1:80"}, hash_of("one.example.com"), MATCH_HOSTONLY, nullptr, acquired) ==

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (1)

include/proxy/http/HttpSessionManager.h:104

• The sm parameter docs say it is only consulted when the corresponding bits are set in match_style, but acquireSession() always calls validate_session_origin_cert(sm, session) (see src/proxy/http/HttpSessionManager.cc:176-239). For multiplexing sessions that function dereferences sm (sm->get_outbound_sni_for_cert_verification(), HttpSessionManager.cc:50-53) even if match_style doesn’t include TS_SERVER_SESSION_SHARING_MATCH_MASK_CERT. Please update the parameter documentation to reflect that sm may be consulted when evaluating multiplexed sessions (origin-certificate hostname validation), so callers know sm must be valid in that case.

   * @param[in]  sm             The requesting HTTP state machine; consulted for SNI and certificate
   *                            validation when the corresponding bits are set in @p match_style.

[JosiahWI]

[approve ci autest 3]

[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.