Test Runner (runtests.sh)

Morphium ships with a repository-local test runner script ./runtests.sh that makes it easier to:

• run the suite with different drivers (pooled, single, inmem)
• run against a real MongoDB via --uri
• run in parallel (--parallel N) with per-slot database isolation
• rerun only failing tests (--rerunfailed)

Common Commands

Real MongoDB (pooled driver)

Run the full suite against an external replica set:

./runtests.sh --driver pooled --uri mongodb://mongo1.example,mongo2.example/morphium_tests --exclude-tags server,inmemory --parallel 2 --restart

Notes:

• Use --restart to wipe test.log/ and start fresh.
• Use --exclude-tags server to skip MorphiumServer-specific tests when you only want MongoDB.
• Use --exclude-tags inmemory if you want to avoid in-memory-only suites.

InMemoryDriver (fast local)

./runtests.sh --driver inmem --parallel 4 --restart

Rerun only failed tests

./runtests.sh --rerunfailed --parallel 2

Local Cluster (localhost)

If you have a replica set running locally on localhost:27017,localhost:27018,localhost:27019 (MongoDB or MorphiumServer), use:

./runtests.sh --morphiumserver-local --parallel 2 --restart

This mode sets:

• --driver pooled
• --uri mongodb://localhost:27017,localhost:27018,localhost:27019/morphium_tests

The runner performs a quick connectivity preflight. If the cluster is not reachable, either start it manually or let the runner auto-start MorphiumServer:

./runtests.sh --morphiumserver-local --start-morphiumserver-local --parallel 2 --restart

To keep the locally started cluster running after the test run:

./runtests.sh --morphiumserver-local --start-morphiumserver-local --keep-morphiumserver-local --parallel 2 --restart

When auto-start is used, MorphiumServer logs are written to .morphiumserver-local/logs/.

Note: --start-morphiumserver-local is idempotent. If something is already listening (MongoDB or another MorphiumServer), the runner will just use it. --allow-existing-localhost-rs is deprecated and has no effect.

If you want to skip specific categories (e.g. if you’re testing “MongoDB compatibility” only), add excludes explicitly:

./runtests.sh --morphiumserver-local --exclude-tags server --parallel 2 --restart

Debugging Failures

• Aggregated logs are written to test.log/<fully.qualified.Test>.log.
• Slot logs are written to test.log/slot_<N>/ during parallel runs.
• Use ./runtests.sh --stats for a live overview (slots running, failures, progress).

Parallel Execution Details

With --parallel N, the runner assigns each slot its own database prefix via -Dmorphium.database=morphium_test_<slot>. This prevents different JVMs from dropping or overwriting each other’s data during heavy parallel suites.

If you run tests manually with Maven, it’s recommended to set an explicit DB as well:

mvn -Pexternal -Dmorphium.driver=pooled -Dmorphium.uri=mongodb://... -Dmorphium.database=morphium_test_manual test