Given:
Execute the DbDeadlockTest on CRDB.

When:
The tests tries to continue the test execution after a SELECT.

Then:
The test blocks the test thread and testing has to be stopped.

Expected:

• The test is executed only on DBs with TX isolation READ_COMMITTED.
• A new (adjusted) test is provided only for CRDB with TX isolation SERIALIZABLE.

Notes:

• The test is designed to test a deadlock situation in a database with a READ_COMMITTED transaction isolation level.
• Since CRDB uses a SERIALIZABLE level, and blocks READS when they encounter a concurrent write, the test logic produces a deadlock in CRDB.
• In a real-life scenario the above wouldn't happen since one of the transactions would commit and unblock the waiting READ.