| 1 | 3,784 | 3,693 | cantor | Fast implementation of finite and complement sets in Ruby |
| 2 | 4,448 | 4,432 | stupidedi | Ruby API for parsing and generating ASC X12 EDI transactions |
| 3 | 36,083 | 113,104 | xmlparsable | Simple declarative XML parsing |
| 4 | 38,250 | 17,937 | piggly | PostgreSQL PL/pgSQL stored procedure code coverage |
| 5 | 127,143 | 59,090 | fr | Examples of immutable data structures and functional programming in Ruby |
| 6 | 134,459 | 77,133 | propr | Property-based testing for Ruby (ala QuickCheck) |
| 7 | 170,088 | 77,133 | forall | Ruby generative property test library (ala QuickCheck) |
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