From: Feng Tien <pood.forums@...>
Date: 2007-11-12T14:05:10+09:00
Subject: How do you use flexmock or mocha to test user interaction?

I can't seem to figure this out

Here's my code that takes user input



  def input_money (machine)
    print 'How much money would you like to put in?'
    money_used = gets.chomp.to_f
    #the check is not working
   if money_used > @money
     puts 'You do not have that much'
   else
      @money = @money - money_used
      machine.money_used = money_used
      puts 'You insert ' + money_used.to_s
   end
 end

My test:

def test_money_back #this checks to see if you get the right amount of
money
    poo = Vending_Machine.new
    bob = Person.new
    bob.input_money(poo)
    flexmock($stdin){|mock| mock.should_receive("gets").and_return("2")}
    # I know this is wrong!
    expected = poo.money_used #one of the instance variables

    assert_equal 2, expected
  end

Right now, since the regular unit test doesn't take any inputs, the
money_used is always going to be 0. How do I make a mock that sets the
value of money_used to 2?

I found in a different thread to use this:
flexmock($stdin){|mock| mock.should_receive("gets").and_return("junk")}

but how do you tell it which method the gets is suppose to be set as 2?
Is there some way to replace the real gets with the mock gets?

Been reading the forum and searching on google the last 2 hours, can't
figure out how this works!

thanks!
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