hubcio opened a new pull request, #3085:
URL: https://github.com/apache/iggy/pull/3085
Connector integration tests each spawn their own iggy-server,
causing resource contention and timing-sensitive CI failures
(e.g. WireMock not receiving requests within retry limit).
Add a `shared_server = "key"` attribute to #[iggy_harness]
that lets tests with the same key share a single iggy-server
process. Tests within a group run serially via
#[serial_test::serial(key)], groups run in parallel with
each other. Each test still gets its own connector runtime,
fixtures, and clients - only the server is shared.
Idempotent seed functions (connector_stream_idempotent)
skip creation if stream/topic already exists, allowing
serial tests to safely reuse the same server state.
Infrastructure:
- SharedServerRegistry (DashMap + tokio::sync::OnceCell)
for thread-safe lazy server initialization
- Atomic refcounting for lifecycle: last test stops server
and cleans up (preserved on failure for debugging)
- TestHarness::from_shared() + start_shared_with_seed()
- Compile-time validation rejects incompatible combinations
(&mut TestHarness, config overrides, cluster, TLS)
Migrates 113 connector tests across 18 files. Three restart
tests using &mut TestHarness remain on dedicated servers.
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