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Contents
require 'spec_helper'
require 'volt/reactive/eventable'
class TestEventable
include Volt::Eventable
attr_reader :events_removed
def initialize
@events_removed = []
end
def event_removed(event, last, last_for_event)
@events_removed.push(event => [last, last_for_event])
end
def trigger_works_event!
trigger!('works', 20)
end
end
describe Volt::Eventable do
let(:test_eventable) { TestEventable.new }
it 'should allow events to be bound with on' do
count = 0
test_eventable.on('works') do |val|
count += 1
expect(val).to eq(20)
end
expect(count).to eq(0)
test_eventable.trigger_works_event!
expect(count).to eq(1)
end
it 'should allow events to be removed with .remove' do
count = 0
listener = test_eventable.on('works') do
count += 1
end
expect(listener.class).to eq(Volt::Listener)
expect(count).to eq(0)
test_eventable.trigger_works_event!
expect(count).to eq(1)
test_eventable.trigger_works_event!
expect(count).to eq(2)
listener.remove
test_eventable.trigger_works_event!
expect(count).to eq(2)
end
it 'should allow multiple events' do
called = false
listener = test_eventable.on(:broken, :works) do |arg|
expect(arg).to eq(20)
called = true
end
test_eventable.trigger_works_event!
expect(called).to eq(true)
# Stop the listener
listener.remove
called = false
# Shouldn't run now
test_eventable.trigger_works_event!
expect(called).to eq(false)
end
it 'Shows object ID and events when inspected' do
tested = TestEventable.new.on("test") { nil }
inspected = tested.inspect
expect(inspected).to include(tested.object_id.to_s)
expect(inspected).to include(tested.events.first.to_s)
end
it 'calls event_removed on the class included on removal of event' do
listener = test_eventable.on("test") { nil }
listener.remove
expect(test_eventable.events_removed).to include(test: [true, true])
end
end
Version data entries
34 entries across 34 versions & 1 rubygems