Test if config is valid.
Test if config is valid. Note that this only parses and validates the configuration. No attempts are made to check the environment (e.g. connection informations...).
Test the environment if connections can be initalized and spark lineage can be created.
Test the environment if connections can be initalized and spark lineage can be created. Note that no changes are made to the environment if possible. The test executes "prepare" and "init" phase, but not the "exec" phase of an SDLB run.