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|
# frozen_string_literal: true
require "abstract_unit"
require "active_support/subscriber"
class TestSubscriber < ActiveSupport::Subscriber
attach_to :doodle
cattr_reader :events
def self.clear
@@events = []
end
def open_party(event)
events << event
end
private
def private_party(event)
events << event
end
end
class TestSubscriber2 < ActiveSupport::Subscriber
attach_to :doodle
detach_from :doodle
cattr_reader :events
def self.clear
@@events = []
end
def open_party(event)
events << event
end
end
# Monkey patch subscriber to test that only one subscriber per method is added.
class TestSubscriber
remove_method :open_party
def open_party(event)
events << event
end
end
class SubscriberTest < ActiveSupport::TestCase
def setup
TestSubscriber.clear
TestSubscriber2.clear
end
def test_attaches_subscribers
ActiveSupport::Notifications.instrument("open_party.doodle")
assert_equal "open_party.doodle", TestSubscriber.events.first.name
end
def test_attaches_only_one_subscriber
ActiveSupport::Notifications.instrument("open_party.doodle")
assert_equal 1, TestSubscriber.events.size
end
def test_does_not_attach_private_methods
ActiveSupport::Notifications.instrument("private_party.doodle")
assert_equal [], TestSubscriber.events
end
def test_detaches_subscribers
ActiveSupport::Notifications.instrument("open_party.doodle")
assert_equal [], TestSubscriber2.events
assert_equal 1, TestSubscriber.events.size
end
end
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