rspec/rspec-mocks — pull request #255 by samphippen (2013-03-29 16:24:21+00:00)
Title: Give a better error message with .at_least(3).times style expectations

Related #252

This is a vastly prototypical implementation. I'm not even sure if it's good or what we want, so I didn't pull the failing specs up to scratch. Any and all comments would be appreciated.

This basically makes the output of this:
```
example do
dbl = double
dbl.should_receive(:foo).at_least(2).times
dbl
end
```

Look like this
```
1) RSpec::Mocks
Failure/Error: dbl.should_receive(:foo).at_least(2).times
(Double).foo(any args)
expected: at least 2 times
received: 0 times
```

It does the same thing for at most.