inbuxa-server/docs/spec/container-tests.md

Running the suites the plain regression doesn't reach

Status: 2026-09-19.

cargo test -p tests runs everything that needs nothing but a store on disk. The fork's own feature suites are #[ignore]d on top of that, because each one needs something the plain run hasn't got: a container, a STORE the harness only builds on request, or, for the eight *_compat tests, a copy of INBUXA's data. A green regression therefore says nothing about them, and they have to be run by name.

The compat eight have their own runbook, compat-tests.md. This one covers the rest.

Before any of them

• Docker, for every suite whose "Needs" column names a container. The suites start and reuse their own containers through the ensure_* helpers in tests/src/utils/containers.rs; nothing has to be started by hand.
• RUST_MIN_STACK=8388608, or smtp::inbound::data::data and some suites overflow the 2 MiB test-thread stack.
• CARGO_TARGET_DIR=target TMPDIR=$PWD/target/tmp, a fresh TMPDIR per run.
• One at a time. Each suite starts a server on the same fixed ports, and the machine is CPU-bound: a second suite, or a build running alongside, makes the timing checks flake.

The suites

Suite	Feature	Needs	STORE
scim::scim_tests	7, SCIM	Nothing (SCIM_CONFORMANCE=1 adds the third-party clients, in a container)	default
scim::scim_oidc_tests	7 and 9 (test 5)	Keycloak	default
directory::per_domain::per_domain_directory_tests	9, per-domain directories	Nothing; needs the sqlite feature	default
store::scaleout::scaleout_blob_tests	8, scale-out storage (tests 2 to 8)	Nothing: the members are directories	default
store::scaleout::scaleout_memory_tests	8 (tests 20, 22, 23)	Redis; needs the redis feature	default
store::replica::replica_tests	8 (tests 9, 10, 12 to 15)	PostgreSQL primary and hot standby	PostgreSqlReplicated
store::replica_cluster::replica_cluster_tests	8 (test 11)	The same pair, and Redis	PostgreSqlReplicated
store::replica_mysql::mysql_replica_tests	8 (test 17)	MySQL source and replica, GTIDs	MySqlReplicated
store::replica_mysql::mysql_replica_position_tests	8 (tests 18, 19)	MySQL source and replica, by binary log position	MySqlReplicatedPosition

system::{ai,branding,masked_email,monitoring,tenant,undelete}_tests are also #[ignore]d, but only as a way to run one suite alone: the same code runs inside system_tests, which the regression does run.

Running one

CARGO_TARGET_DIR=target TMPDIR=$PWD/target/tmp RUST_MIN_STACK=8388608 \
STORE=<store> cargo test -p tests --features <backends> <suite> -- --ignored

<suite> is the test's name, such as scim_tests or replica_tests, and --exact with its full path if the name matches more than one. The three replicated STORE values are the harness's own (tests/src/utils/storage.rs); they bring up the pair they name and point the server at the primary.

For example:

STORE=PostgreSqlReplicated cargo test -p tests --features postgres,redis \
    replica_cluster_tests -- --ignored

What a plain regression leaves failing

STORE=RocksDb cargo test -p tests -- --test-threads=1 was 86 passed, 4 failed, 27 ignored on 2026-09-19. None of the four was a fork regression, and three are the invocation or the environment rather than the code:

• smtp::inbound::antispam::antispam fails every time. Its rules URL defaults to file:///Users/me/code/spam-filter/spam-filter-rules.json.gz, a path from the upstream import that exists on no machine here, so no rules load and every tag scores 0.00 against an expectation full of weights. Give it SPAM_RULES_URL.
• cluster::broadcast::cluster_tests needs COORDINATOR=Redis (or Nats) and a store the nodes can share: it passes on STORE=PostgreSql, and can't work on RocksDb, where each node gets its own.
• smtp::outbound::lmtp::lmtp_delivery counted three DSNs where it wanted four, and passes on its own: queue timing under a loaded sequential run.
• automation::automation_tests fails against pebble with 400 malformed: "Cannot update challenge with status processing, only status pending". crates/common/src/network/acme/order.rs re-POSTs the challenge each time it polls an authorization that is still pending; pebble accepts that only while the challenge itself is pending. Upstream code, untouched by the fork, and unfixed: worth treating as a real renewal bug rather than a test artefact.

When one fails

The containers are reused between runs, so a suite that fails in a way its own assertions don't explain is worth re-running once against fresh ones: docker rm -f the containers it names (they are all prefixed inbuxa-test-) and run it again. A replica pair left paused or stopped by an interrupted run is the usual cause — replica_tests pauses WAL replay, and mysql_replica_position_tests changes the replica's parallel-apply settings, both of which they restore only if they finish.