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module RSpec
module Mocks
# @private
class ErrorGenerator
attr_writer :opts
def initialize(target, name, options={})
@declared_as = options[:__declared_as] || 'Mock'
@target = target
@name = name
end
# @private
def opts
@opts ||= {}
end
# @private
def raise_unexpected_message_error(message, *args)
__raise "#{intro} received unexpected message :#{message}#{arg_message(*args)}"
end
# @private
def raise_unexpected_message_args_error(expectation, *args)
expected_args = format_args(*expectation.expected_args)
actual_args = format_received_args(*args)
__raise "#{intro} received #{expectation.message.inspect} with unexpected arguments\n expected: #{expected_args}\n got: #{actual_args}"
end
# @private
def raise_missing_default_stub_error(expectation, *args)
expected_args = format_args(*expectation.expected_args)
actual_args = format_received_args(*args)
__raise "#{intro} received #{expectation.message.inspect} with unexpected arguments\n expected: #{expected_args}\n got: #{actual_args}\n Please stub a default value first if message might be received with other args as well. \n"
end
# @private
def raise_similar_message_args_error(expectation, *args_for_multiple_calls)
expected_args = format_args(*expectation.expected_args)
actual_args = args_for_multiple_calls.collect {|a| format_received_args(*a)}.join(", ")
__raise "#{intro} received #{expectation.message.inspect} with unexpected arguments\n expected: #{expected_args}\n got: #{actual_args}"
end
# @private
def raise_expectation_error(message, expected_received_count, argument_list_matcher, actual_received_count, expectation_count_type, *args)
expected_part = expected_part_of_expectation_error(expected_received_count, expectation_count_type, argument_list_matcher)
received_part = received_part_of_expectation_error(actual_received_count, *args)
__raise "(#{intro}).#{message}#{format_args(*args)}\n #{expected_part}\n #{received_part}"
end
# @private
def received_part_of_expectation_error(actual_received_count, *args)
"received: #{count_message(actual_received_count)}" +
method_call_args_description(args)
end
# @private
def expected_part_of_expectation_error(expected_received_count, expectation_count_type, argument_list_matcher)
"expected: #{count_message(expected_received_count, expectation_count_type)}" +
method_call_args_description(argument_list_matcher.expected_args)
end
# @private
def method_call_args_description(args)
if args.first.is_a?(ArgumentMatchers::AnyArgsMatcher)
" with any arguments"
elsif args.first.is_a?(ArgumentMatchers::NoArgsMatcher)
" with no arguments"
elsif args.length > 0
" with arguments: #{args.inspect.gsub(/\A\[(.+)\]\z/, '(\1)')}"
else
""
end
end
# @private
def describe_expectation(message, expected_received_count, actual_received_count, *args)
"have received #{message}#{format_args(*args)} #{count_message(expected_received_count)}"
end
# @private
def raise_out_of_order_error(message)
__raise "#{intro} received :#{message} out of order"
end
# @private
def raise_block_failed_error(message, detail)
__raise "#{intro} received :#{message} but passed block failed with: #{detail}"
end
# @private
def raise_missing_block_error(args_to_yield)
__raise "#{intro} asked to yield |#{arg_list(*args_to_yield)}| but no block was passed"
end
# @private
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 raise_only_valid_on_a_partial_mock(method)
__raise "#{intro} is a pure mock object. `#{method}` is only " +
"available on a partial mock object."
end
# @private
def raise_expectation_on_unstubbed_method(method)
__raise "#{intro} expected to have received #{method}, but that " +
"method has not been stubbed."
end
# @private
def raise_expectation_on_mocked_method(method)
__raise "#{intro} expected to have received #{method}, but that " +
"method has been mocked instead of stubbed."
end
def self.raise_double_negation_error(wrapped_expression)
raise "Isn't life confusing enough? You've already set a " +
"negative message expectation and now you are trying to " +
"negate it again with `never`. What does an expression like " +
"`#{wrapped_expression}.not_to receive(:msg).never` even mean?"
end
private
def intro
if @name
"#{@declared_as} #{@name.inspect}"
elsif TestDouble === @target
@declared_as
elsif Class === @target
"<#{@target.inspect} (class)>"
elsif @target
@target
else
"nil"
end
end
def __raise(message)
message = opts[:message] unless opts[:message].nil?
Kernel::raise(RSpec::Mocks::MockExpectationError, message)
end
def arg_message(*args)
" with " + format_args(*args)
end
def format_args(*args)
args.empty? ? "(no args)" : "(" + arg_list(*args) + ")"
end
def arg_list(*args)
args.collect {|arg| arg.respond_to?(:description) ? arg.description : arg.inspect}.join(", ")
end
def format_received_args(*args)
args.empty? ? "(no args)" : "(" + received_arg_list(*args) + ")"
end
def received_arg_list(*args)
args.collect(&:inspect).join(", ")
end
def count_message(count, expectation_count_type=nil)
return "at least #{pretty_print(count.abs)}" if count < 0 || expectation_count_type == :at_least
return "at most #{pretty_print(count)}" if expectation_count_type == :at_most
return pretty_print(count)
end
def pretty_print(count)
"#{count} time#{count == 1 ? '' : 's'}"
end
end
end
end
|
