Thanks Carl Meyer for review.

Thanks adityagupta104 for the report and Tim Graham for the review.

Thanks wkornewald for the report and Markus Holtermann for review.

These test methods don't need DB setup/teardown.

Refs #23768 and b872134b.

Since Python 2.7 and 3.1, "{0} {1}" is equivalent to "{} {}".

Thanks andrewbadr for the report and Carl Meyer for the review.

Each TestCase is also now wrapped in a class-wide transaction.

Without this patch, you couldn't run an individual test
case in template_tests.

Refs #23768

Refs #23843 which is really a cx_Oracle bug

Based on Daniel Wiesmann's work. Refs #23804.

GDAL raster methods return different error codes from the vector
API.

Refs #23804.