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Contents
# frozen_string_literal: true
require "action_policy/testing"
module ActionPolicy
module RSpec
# Policy rule alias matcher `be_an_alias_of`.
#
# Verifies that for given policy a policy rule has an alias.
#
# Example:
#
# # in policy specs
# subject(:policy) { described_class.new(record, user: user) }
#
# let(:user) { build_stubbed(:user) }
# let(:record) { build_stubbed(:post) }
#
# describe "#show?" do
# it "is an alias of :index? policy rule" do
# expect(:show?).to be_an_alias_of(policy, :index?)
# end
# end
#
# # negated version
# describe "#show?" do
# it "is not an alias of :index? policy rule" do
# expect(:show?).to_not be_an_alias_of(policy, :index?)
# end
# end
#
class BeAnAliasOf < ::RSpec::Matchers::BuiltIn::BaseMatcher
attr_reader :policy, :rule, :actual
def initialize(policy, rule)
@policy = policy
@rule = rule
end
def match(_expected, actual)
policy.resolve_rule(actual) == rule
end
def does_not_match?(actual)
@actual = actual
policy.resolve_rule(actual) != rule
end
def supports_block_expectations?() = false
def failure_message
"expected #{policy}##{actual} " \
"to be an alias of #{policy}##{rule}"
end
def failure_message_when_negated
"expected #{policy}##{actual} " \
"to not be an alias of #{policy}##{rule}"
end
end
end
end
RSpec.configure do |config|
config.include(Module.new do
def be_an_alias_of(policy, rule)
ActionPolicy::RSpec::BeAnAliasOf.new(policy, rule)
end
end)
end
Version data entries
13 entries across 13 versions & 1 rubygems