AST-1031 Test getProvidedFields and getRequiredFields, part 1
Add tests for non-trivial Step::getProvidedFields and Step::getRequiredFields implementations. Add some helper methods to Fields, including tests.
Edited by Maik Nijhuis
Add tests for non-trivial Step::getProvidedFields and Step::getRequiredFields implementations. Add some helper methods to Fields, including tests.