Comments on: Unit testing using in-memory databases http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/ Software, Agile Process and Security Wed, 07 Jul 2010 21:25:24 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Keith McMillan http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/comment-page-1/#comment-4644 Keith McMillan Wed, 28 Apr 2010 16:00:34 +0000 http://www.adeptechllc.com/?p=224#comment-4644 Hello Felipe, I have a pretty good guess what’s going on. HSQL with the in-memory database creates files in the PUBLIC schema, regardless of what you tell it to use. Since you’re using annotations, it may be difficult for you to swap out what schema hibernate is using in production vs unit testing, but that’s what you need to do. If you externalize your Hibernate mappings into XML, you might have an easier time. Good luck! Keith Hello Felipe,

I have a pretty good guess what’s going on. HSQL with the in-memory database creates files in the PUBLIC schema, regardless of what you tell it to use. Since you’re using annotations, it may be difficult for you to swap out what schema hibernate is using in production vs unit testing, but that’s what you need to do. If you externalize your Hibernate mappings into XML, you might have an easier time.

Good luck!
Keith

]]> By: Felipe http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/comment-page-1/#comment-4642 Felipe Tue, 27 Apr 2010 18:31:45 +0000 http://www.adeptechllc.com/?p=224#comment-4642 Hey, Keith, I've tried using this class you've created but for some reason it doesn't seem to be creating the schema. My create_database.sql (maybe you could post an example of create_database.sql) has a single line: CREATE SCHEMA UM5P AUTHORIZATION DBA My hibernate entities are annotated as the example: @Entity @Table(name="PTC",schema="UM5P") public class Ptc ... Funny thing is if I use HSQLDB in file mode, and put the UM5P schema creation in the .script file generated by HSQLDB, it works fine, but I can't seem to make it work in mem mode. Any wild guesses? Thank you Hey, Keith,
I’ve tried using this class you’ve created but for some reason it doesn’t seem to be creating the schema.
My create_database.sql (maybe you could post an example of create_database.sql) has a single line:
CREATE SCHEMA UM5P AUTHORIZATION DBA
My hibernate entities are annotated as the example:
@Entity
@Table(name=”PTC”,schema=”UM5P”)
public class Ptc …

Funny thing is if I use HSQLDB in file mode, and put the UM5P schema creation in the .script file generated by HSQLDB, it works fine, but I can’t seem to make it work in mem mode. Any wild guesses?

Thank you

]]> By: Keith McMillan http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/comment-page-1/#comment-4618 Keith McMillan Wed, 14 Oct 2009 02:50:12 +0000 http://www.adeptechllc.com/?p=224#comment-4618 Hi Jaime, I also tried a schema other than PUBLIC when I first started trying to use HSQLDB, but if I recall correctly, you must use PUBLIC for an in-memory database. If I'm remembering correctly, this is because that's hard-coded in HSQLDB for the in-memory driver. Is it important that you use a name other than PUBLIC? The database will be destroyed when your JVM exits after all. Hope this helps. Keith Hi Jaime,

I also tried a schema other than PUBLIC when I first started trying to use HSQLDB, but if I recall correctly, you must use PUBLIC for an in-memory database. If I’m remembering correctly, this is because that’s hard-coded in HSQLDB for the in-memory driver.

Is it important that you use a name other than PUBLIC? The database will be destroyed when your JVM exits after all.

Hope this helps.

Keith

]]> By: jaime http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/comment-page-1/#comment-4616 jaime Tue, 13 Oct 2009 22:00:59 +0000 http://www.adeptechllc.com/?p=224#comment-4616 hi, thank you for the article, now i'm using your approach, but I have I problem trying to use another schema instead of public, say "TESTSCHEMA" hi, thank you for the article, now i’m using your approach, but I have I problem trying to use another schema instead of public, say “TESTSCHEMA”

]]> By: Some unfortunate behavior in DBUnit | Adept Technologies http://www.adeptechllc.com/2009/07/02/unit-testing-using-in-memory-databases/comment-page-1/#comment-4612 Some unfortunate behavior in DBUnit | Adept Technologies Tue, 07 Jul 2009 13:24:30 +0000 http://www.adeptechllc.com/?p=224#comment-4612 [...] Unit testing using in-memory databases [...] [...] Unit testing using in-memory databases [...]

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