Sha256: 10ee2627baa6894eb5af6e9c9ed32ca1247bf54a32198a83ef50f2058a2869b6
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Versions: 35
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Contents
RSpec::Support.require_rspec_support 'differ'
module RSpec
module Expectations
class << self
# @private
def differ
RSpec::Support::Differ.new(
:object_preparer => lambda { |object| RSpec::Matchers::Composable.surface_descriptions_in(object) },
:color => RSpec::Matchers.configuration.color?
)
end
# Raises an RSpec::Expectations::ExpectationNotMetError with message.
# @param [String] message
# @param [Object] expected
# @param [Object] actual
#
# Adds a diff to the failure message when `expected` and `actual` are
# both present.
def fail_with(message, expected=nil, actual=nil)
unless message
raise ArgumentError, "Failure message is nil. Does your matcher define the " \
"appropriate failure_message[_when_negated] method to return a string?"
end
diff = differ.diff(actual, expected)
message = "#{message}\nDiff:#{diff}" unless diff.empty?
raise RSpec::Expectations::ExpectationNotMetError, message
end
end
end
end
Version data entries
35 entries across 32 versions & 9 rubygems