The "default default" is the source directory of the project in order
to avoid having to copy the data files which are necessary for
executing the tests. (copying them is an almost impossible thing to do
in general, since the file system layout of the project is not
standardized.) this can be changed using the new
opm_set_test_default_working_directory() macro.
having said this, some tests may have to write some output to disk
during execution and the source directory should not be assumed to be
writable (e.g., it could be burned on a DVD), i.e., using the build
directory by default would be the more sensible choice IMO.
The most important issue was that PR#20 removed the possibility to use
a test driver script. In eWoms, this script is responsible for
(fuzzily) comparing the results of the test runs with reference
solutions, to test the simulators in parallel and compare the results,
and to make sure that the --help command continues to work as
intended.
The approach taken to bring this functionality back is to specify the
test driver script and its parameters using the new macro
'opm_set_test_driver(${DRIVER_COMMAND} ${DRIVER_DEFAULT_ARGUMENTS})'
before the first call to 'opm_add_test'. If no test driver is
specified, the binary is run 'naked', so nothing should change in this
case.
There already is a module for finding Zoltan, which supports
both ParMETIS and PT-Scotch underneath. While the former is
only free for academic use the latter is true open source. Therefore
with this commit we add a module for finding PT-Scotch and add the
necessary libraries and include paths for ZOLTAN.
