| 1 | 3,777 | 3,205 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,438 | 3,854 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 35,626 | 32,154 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,031 | 27,533 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 126,166 | 131,109 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 133,916 | 157,203 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 169,350 | 157,203 | forall | Ruby generative property test library (ala QuickCheck) |