| 1 | 3,788 | 3,447 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,450 | 4,294 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 36,167 | 101,581 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,268 | 48,171 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 127,391 | 140,423 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 134,541 | 78,082 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 170,228 | 140,423 | forall | Ruby generative property test library (ala QuickCheck) |