auto select based on current line and test

[HParker]

part of #12

I did two things here:

• the post condition line is now assumed to be the current line rather than having to select it (it has unexpected behavior when selecting multiple lines)
• also, (I hope this isn't just me) the conditions where being pulled out reversed

puts "some are greater than 3" unless long_method.empty?

previously became:

unless puts "some are greater than 3"
  long_method.empty?
end

now becomes:

unless long_method.empty?
  puts "some are greater than 3"
end

Let me know what you think.
Thanks!

[mikenichols]

Awesome work, thanks man. When I was testing this, I got the reversed conditions once, but foolishly shrugged it off. Also 👍 for adding a test.

[HParker]

anytime. Anything else you would like to see here?

[mikenichols]

That's up to @ajvargo. He's been good at responding relatively quickly.

[HParker]

Cool. No hurry, just curious. :)