is a one-line test like this possible in rspec

Question

I'd like to do something like the following:

require 'rspec-expectations'
"bat".length.should eq(3)
# => NoMethodError: undefined method `eq' for main:Object

Is something like this possible? How would I need to change it? Would I need to require 'rspec-expectations'?

what your goal is? maybe simple ruby technique can help you. — Arup Rakshit, Apr 28 '13 at 16:06
I'm trying to do a quick demo of how rspec works and would like to be able to do it in irb. I know I can create a simple file but more for demo purposes — timpone, Apr 28 '13 at 16:07
@Priti please don't delete comments that already have been answered, it makes the conversation hard to follow for others. — Patrick Oscity, Apr 28 '13 at 16:13
@padde you also delete the comment,I deleted as that comment has no point. :) — Arup Rakshit, Apr 28 '13 at 16:16

score 2 · Answer 1 · answered Apr 28 '13 at 16:10

2

gem install interactive_rspec

then

irspec
001> "bat".length.should eq(3)
.

Finished in 0.00006 seconds
1 example, 0 failures
=> true

answered Apr 28 '13 at 16:10

Patrick Oscity

score 1 · Accepted Answer · answered Apr 28 '13 at 16:13

1

In irb:

require 'rspec-expectations'
include RSpec::Matchers

"bat".length.should eq(3)

answered Apr 28 '13 at 16:13

Shawn Balestracci

thx, this looks great. When it's not met, it's a little ugly but gets job done. – timpone Apr 28 '13 at 16:18
1

as a heads-up, you might run into issues with the above technique such as: http://stackoverflow.com/questions/14749047/how-to-use-rspec-expectations-in-irb?rq=1 – timpone Apr 28 '13 at 16:35

2 Answers2