module Spec
module Mocks
class ErrorGenerator
attr_writer :opts
def initialize(target, name)
@target = target
@name = name
end
def opts
@opts ||= {}
end
def raise_unexpected_message_error(sym, *args)
__raise "#{intro} received unexpected message :#{sym}#{arg_message(*args)}"
end
def raise_unexpected_message_args_error(expectation, *args)
expected_args = format_args(*expectation.expected_args)
actual_args = args.empty? ? "(no args)" : format_args(*args)
__raise "#{intro} expected #{expectation.sym.inspect} with #{expected_args} but received it with #{actual_args}"
end
def raise_expectation_error(sym, expected_received_count, actual_received_count, *args)
__raise "#{intro} expected :#{sym}#{arg_message(*args)} #{count_message(expected_received_count)}, but received it #{count_message(actual_received_count)}"
end
def raise_out_of_order_error(sym)
__raise "#{intro} received :#{sym} out of order"
end
def raise_block_failed_error(sym, detail)
__raise "#{intro} received :#{sym} but passed block failed with: #{detail}"
end
def raise_missing_block_error(args_to_yield)
__raise "#{intro} asked to yield |#{arg_list(*args_to_yield)}| but no block was passed"
end
def raise_wrong_arity_error(args_to_yield, arity)
__raise "#{intro} yielded |#{arg_list(*args_to_yield)}| to block with arity of #{arity}"
end
private
def intro
@name ? "Mock '#{@name}'" : @target.inspect
end
def __raise(message)
message = opts[:message] unless opts[:message].nil?
Kernel::raise(Spec::Mocks::MockExpectationError, message)
end
def arg_message(*args)
" with " + format_args(*args)
end
def format_args(*args)
return "(no args)" if args.empty? || args == [:no_args]
return "(any args)" if args == [:any_args]
"(" + arg_list(*args) + ")"
end
def arg_list(*args)
args.collect do |arg|
arg.respond_to?(:description) ? arg.description : arg.inspect
end.join(", ")
end
def count_message(count)
return "at least #{pretty_print(count.abs)}" if count < 0
return pretty_print(count)
end
def pretty_print(count)
return "once" if count == 1
return "twice" if count == 2
return "#{count} times"
end
end
end
end
