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Contents
# frozen_string_literal: true
module ConvenientService
module RSpec
module Matchers
module Custom
class CacheItsValue
def matches?(block_expectation)
@block_expectation = block_expectation
##
# NOTE: Identical to `block_expectation.call.object_id == block_expectation.call.object_id`.
#
block_expectation.call.equal?(block_expectation.call)
end
def supports_block_expectations?
true
end
def description
"cache its value"
end
def failure_message
"expected #{printable_block_expectation} to cache its value"
end
def failure_message_when_negated
"expected #{printable_block_expectation} NOT to cache its value"
end
##
# NOTE: An example of how RSpec extracts block source, but they marked it as private.
# https://github.com/rspec/rspec-expectations/blob/311aaf245f2c5493572bf683b8c441cb5f7e44c8/lib/rspec/matchers/built_in/change.rb#L437
#
# TODO: `printable_block_expectation` when `method_source` is available.
# https://github.com/banister/method_source
#
# def printable_block_expectation
# @printable_block_expectation ||= block_expectation.source
# end
#
def printable_block_expectation
@printable_block_expectation ||= "{ ... }"
end
private
attr_reader :block_expectation
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems