Automated testing for upgrade from 4.4 releases

This ticket tracks the automation for the upgrade from the previous 4.4 releases (4.4.0 - 4.4.10) to the latest 4.4 and 5.0 releases.

We need to cover the following scenarios:

• Upgrade from an unclean 4.4.0 - 4.4.6 (both inclusive) should fail
• Upgrade from a clean 4.4.0 - 4.4.6 (both inclusive) should pass
• Upgrade from 4.4.7 - 4.4.10, clean or unclean should pass

Upgrade here means using test/checkpoint as a driving program to do two critical steps:

• Open the database files successfully (which would test doing a rollback-to-stable only in those cases where we can without corruption). Open itself should fail for unclean 4.4.0 - 4.4.6
• For the databases that open successfully verify that the tables created by test/checkpoint all have the same content as per the last checkpoint.

The following test/checkpoint invocation will take care of the above tasks:
test/checkpoint -t r -D -v -h <dir>

Here is a pseudo-code for what automation is needed:

for ver = (latest 4.4 , latest 5.0) {

   git checkout ver

   build WT

   for each tarred database in the repository {

       download the tar file and untar

       ret = test/checkpoint -t r -D -v -h <db-dir>

       If the database is from version 4.4.0 - 4.4.6 and from an unclean shutdown:

           ASSERT(ret == failure)

       else:

           ASSERT(ret == Success)

    }

}

Click here for the link for the repository.