# File lib/mocha/mock.rb, line 51 51: def expects(method_name_or_hash, backtrace = nil) 52: iterator = ArgumentIterator.new(method_name_or_hash) 53: iterator.each { |*args| 54: method_name = args.shift 55: ensure_method_not_already_defined(method_name) 56: expectation = Expectation.new(self, method_name, backtrace) 57: expectation.returns(args.shift) if args.length > 0 58: @expectations.add(expectation) 59: } 60: end