Fullstaq Ruby is the best server-oriented configuration of Ruby distributed as easy to install and use OS packages that we use on mkdev now. But how does it compare to Ruby from Software Collections that we've used before? Here's an article from Kirill Shirinkin with some comparative metrics.
Tests are a double-edged sword. On one hand, well-written ones catch bugs and maintain a program’s stability, but as the code base grows, a high number of tests impedes scalability because they take a long time to run and increase the likelihood of intermittently failing tests.