52 lines
1.6 KiB
Ruby
52 lines
1.6 KiB
Ruby
module Spec
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module Expectations
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class InvalidMatcherError < ArgumentError; end
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module MatcherHandlerHelper
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def describe_matcher(matcher)
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matcher.respond_to?(:description) ? matcher.description : "[#{matcher.class.name} does not provide a description]"
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end
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end
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class ExpectationMatcherHandler
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class << self
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include MatcherHandlerHelper
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def handle_matcher(actual, matcher, &block)
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unless matcher.respond_to?(:matches?)
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raise InvalidMatcherError, "Expected a matcher, got #{matcher.inspect}."
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end
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match = matcher.matches?(actual, &block)
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::Spec::Matchers.generated_description = "should #{describe_matcher(matcher)}"
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Spec::Expectations.fail_with(matcher.failure_message) unless match
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end
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end
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end
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class NegativeExpectationMatcherHandler
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class << self
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include MatcherHandlerHelper
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def handle_matcher(actual, matcher, &block)
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unless matcher.respond_to?(:matches?)
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raise InvalidMatcherError, "Expected a matcher, got #{matcher.inspect}."
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end
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unless matcher.respond_to?(:negative_failure_message)
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Spec::Expectations.fail_with(
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<<-EOF
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Matcher does not support should_not.
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See Spec::Matchers for more information
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about matchers.
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EOF
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)
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end
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match = matcher.matches?(actual, &block)
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::Spec::Matchers.generated_description = "should not #{describe_matcher(matcher)}"
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Spec::Expectations.fail_with(matcher.negative_failure_message) if match
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end
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end
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end
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end
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end
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