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module RSpec
module Expectations
class ExpectationHandler
def self.check_message(msg)
unless msg.nil? || msg.respond_to?(:to_str) || msg.respond_to?(:call)
::Kernel.warn [
"WARNING: ignoring the provided expectation message argument (",
msg.inspect,
") since it is not a string or a proc."
].join
end
end
end
class PositiveExpectationHandler < ExpectationHandler
def self.handle_matcher(actual, matcher, message=nil, &block)
check_message(message)
::RSpec::Matchers.last_should = :should
::RSpec::Matchers.last_matcher = matcher
return ::RSpec::Matchers::BuiltIn::PositiveOperatorMatcher.new(actual) if matcher.nil?
match = matcher.matches?(actual, &block)
return match if match
message = message.call if message.respond_to?(:call)
message ||= matcher.respond_to?(:failure_message_for_should) ?
matcher.failure_message_for_should :
matcher.failure_message
if matcher.respond_to?(:diffable?) && matcher.diffable?
::RSpec::Expectations.fail_with message, matcher.expected, matcher.actual
else
::RSpec::Expectations.fail_with message
end
end
end
class NegativeExpectationHandler < ExpectationHandler
def self.handle_matcher(actual, matcher, message=nil, &block)
check_message(message)
::RSpec::Matchers.last_should = :should_not
::RSpec::Matchers.last_matcher = matcher
return ::RSpec::Matchers::BuiltIn::NegativeOperatorMatcher.new(actual) if matcher.nil?
match = matcher.respond_to?(:does_not_match?) ?
!matcher.does_not_match?(actual, &block) :
matcher.matches?(actual, &block)
return match unless match
message = message.call if message.respond_to?(:call)
message ||= matcher.respond_to?(:failure_message_for_should_not) ?
matcher.failure_message_for_should_not :
matcher.negative_failure_message
if matcher.respond_to?(:diffable?) && matcher.diffable?
::RSpec::Expectations.fail_with message, matcher.expected, matcher.actual
else
::RSpec::Expectations.fail_with message
end
end
end
end
end
|
