vendor/gems/rspec-1.1.2/lib/spec/mocks/error_generator.rb

   1 module Spec
   2   module Mocks
   3     class ErrorGenerator
   4       attr_writer :opts
   5
   6       def initialize(target, name)
   7         @target = target
   8         @name = name
   9       end
  10
  11       def opts
  12         @opts ||= {}
  13       end
  14
  15       def raise_unexpected_message_error(sym, *args)
  16         __raise "#{intro} received unexpected message :#{sym}#{arg_message(*args)}"
  17       end
  18
  19       def raise_unexpected_message_args_error(expectation, *args)
  20         expected_args = format_args(*expectation.expected_args)
  21         actual_args = args.empty? ? "(no args)" : format_args(*args)
  22         __raise "#{intro} expected #{expectation.sym.inspect} with #{expected_args} but received it with #{actual_args}"
  23       end
  24
  25       def raise_expectation_error(sym, expected_received_count, actual_received_count, *args)
  26         __raise "#{intro} expected :#{sym}#{arg_message(*args)} #{count_message(expected_received_count)}, but received it #{count_message(actual_received_count)}"
  27       end
  28
  29       def raise_out_of_order_error(sym)
  30         __raise "#{intro} received :#{sym} out of order"
  31       end
  32
  33       def raise_block_failed_error(sym, detail)
  34         __raise "#{intro} received :#{sym} but passed block failed with: #{detail}"
  35       end
  36
  37       def raise_missing_block_error(args_to_yield)
  38         __raise "#{intro} asked to yield |#{arg_list(*args_to_yield)}| but no block was passed"
  39       end
  40
  41       def raise_wrong_arity_error(args_to_yield, arity)
  42         __raise "#{intro} yielded |#{arg_list(*args_to_yield)}| to block with arity of #{arity}"
  43       end
  44
  45       private
  46       def intro
  47         @name ? "Mock '#{@name}'" : @target.inspect
  48       end
  49
  50       def __raise(message)
  51         message = opts[:message] unless opts[:message].nil?
  52         Kernel::raise(Spec::Mocks::MockExpectationError, message)
  53       end
  54
  55       def arg_message(*args)
  56         " with " + format_args(*args)
  57       end
  58
  59       def format_args(*args)
  60         return "(no args)" if args.empty? || args == [:no_args]
  61         return "(any args)" if args == [:any_args]
  62         "(" + arg_list(*args) + ")"
  63       end
  64
  65       def arg_list(*args)
  66         args.collect do |arg|
  67           arg.respond_to?(:description) ? arg.description : arg.inspect
  68         end.join(", ")
  69       end
  70
  71       def count_message(count)
  72         return "at least #{pretty_print(count.abs)}" if count < 0
  73         return pretty_print(count)
  74       end
  75
  76       def pretty_print(count)
  77         return "once" if count == 1
  78         return "twice" if count == 2
  79         return "#{count} times"
  80       end
  81
  82     end
  83   end
  84 end