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Asked: 2026-05-27T14:33:02+00:00

I am wondering how I can speedup my unit tests. I am using JUnit

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I am wondering how I can speedup my unit tests. I am using JUnit and before each test I am dropping the database schema and then recreating it. Since my schema is somewhat large, this can take quite a long time considering I have over 1000 tests.

To give you an understanding of my setup:
Spring 3 hibernate3.LocalSessionFactoryBean which is using the HSQL dialect.
I am using the JUnit’s Suite runner to run a list of classes.

I noticed that Spring has a SpringJunit4ClassRunner that understands Transaction annotation, but not the suite annotations. I got around this issue and now rollbacks are being attempted, but they seem to cause an infinite recursion which leads to a StackOverflow.

I’m relatively new to Spring and all it’s magic, but I was just wondering if anyone has any ideas in regard to the StackOverflow, or any other ideas in speeding up the testing?

Maybe I could write to a file the clean state of the DB and continuously reload that after each test, though I’m not sure if this is possible.

Thanks in advance.

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1 Answer

  1. Editorial Team

    HSQLDB 2.2.6 supports a statement to clear the data in a database schema.

       TRUNCATE SCHEMA PUBLIC AND COMMIT

    See the guide here:

    http://hsqldb.org/doc/2.0/guide/dataaccess-chapt.html#dac_truncate_statement

    Version 2.2.7 and later supports TRUNCATE SCHEMA PUBLIC RESTART IDENTITY AND COMMIT

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