Hi --

On Sat, 5 Jun 2004, Michael Neumann wrote:

> On Sat, Jun 05, 2004 at 03:34:47AM +0900, Edgardo Hames wrote:
> > Hi, everybody. I would like to use an assert like function to test the 
> > number of rows returned by a query. Something like Eiffel's
> > 
> > check result.num_rows = 1
> >
> > What's the best way to do that in Ruby?
> 
>   def check
>     raise "check failed" unless yield
>   end
> 
> 
>   check { result.num_rows == 1 }

I guess you could even do:

  def check(a)
    raise "check failed" unless a
  end

  check result.num_rows == 1

though of course that wouldn't scale if the assertion got more complex
syntactically.  (I'm not sure it's any better anyway, but I was trying
to match Edgardo's sample syntax as closely as I could.)


David

-- 
David A. Black
dblack / wobblini.net