RAA - rcov/0.2.0

rcov is a tool for simple code coverage analysis in Ruby. It improves on the better known coverage[1] in a number of ways:

• 20-300 times faster: typically, the program being inspected runs only ~3 times slower than without rcov (i.e. not 200 times slower as with some other tools)
• more convenient interface
• prettier output (since 0.2.0)
• more accurate coverage information through code linkage inference using simple heuristics
• additional features like bogo-profile mode, colorblind-friendliness…

Code coverage shouldn’t be abused (in few words, C0 coverage guarantees nothing) but it’s still useful for testing: it will at least tell you when your tests need more work, and most importantly where.

See eigenclass.org/hiki.rb?rcov for additional information, screenshots, etc.

1

freshmeat.net/projects/rubycoverage