13 Sep '17, 12pm

When mutant changes an empty array into nil and everything works but you want to scream

I run the tests and they passed. I don’t know what I was thinking, obviously, they passed, mutant already verified that they pass in such case. That’s why I am here. But I didn’t believe so I made this change manually and of course specs passed. I was confused. I looked into those specs to find out if we were missing some cases and we did not.

Full article: http://blog.arkency.com/constructor-for-a-included-module...

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