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/* globals describe, expect, it, spyOn, jasmine */
import {
windowEvents,
getEvents,
getEventTarget,
clearEvents,
dispatch,
on,
off
} from '../../../../src/modules/core/event.js'
import { getWindow } from '../../../../src/utils/window.js'
import { EventTarget, SVG } from '../../../../src/main.js'
const { any, createSpy } = jasmine
describe('event.js', () => {
describe('getEvents()', () => {
it('returns the instance events for an EventTarget', () => {
const eventTarget = new EventTarget()
eventTarget.events = 'Test'
const events = getEvents(eventTarget)
expect(events).toBe('Test')
})
it('accesses windowEvents if instance is window', () => {
windowEvents.events = 'bla'
const events = getEvents(SVG(getWindow()))
expect(events).toBe(windowEvents.events)
})
})
describe('getEventTarget()', () => {
it('calls getEventTarget() on the instance', () => {
const eventTarget = new EventTarget()
const spy = spyOn(eventTarget, 'getEventTarget')
getEventTarget(eventTarget)
expect(spy).toHaveBeenCalled()
})
})
describe('clearEvents()', () => {
it('sets events to an empty object', () => {
const eventTarget = new EventTarget()
eventTarget.events = 'Test'
clearEvents(eventTarget)
expect(eventTarget.events).toEqual({})
})
it('does not do anything if no event object is found on the instance', () => {
const eventTarget = new EventTarget()
delete eventTarget.events
clearEvents(eventTarget)
expect(eventTarget.events).toBe(undefined)
})
})
describe('on()', () => {
it('binds an event to an EventTarget', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event', spy)
dispatch(eventTarget, 'event')
expect(spy).toHaveBeenCalledWith(any(getWindow().CustomEvent))
})
it('binds to multiple events with space or comma separated string', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event1 event2, event3', spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy).toHaveBeenCalledTimes(3)
})
it('binds to multiple events passed as array', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, ['event1', 'event2', 'event3'], spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy).toHaveBeenCalledTimes(3)
})
it('binds a namespaced event of form event.namespace', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event.namespace', spy)
dispatch(eventTarget, 'event')
expect(spy).toHaveBeenCalledWith(any(getWindow().CustomEvent))
})
})
describe('off()', () => {
it('unbinds an event of an EventTarget', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event', spy)
dispatch(eventTarget, 'event')
off(eventTarget, 'event', spy)
dispatch(eventTarget, 'event')
expect(spy).toHaveBeenCalledTimes(1)
})
it('unbinds multiple events with space or comma separated string', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event1 event2, event3', spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
off(eventTarget, 'event1 event2, event3', spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy).toHaveBeenCalledTimes(3)
})
it('unbinds multiple events with space or comma separated string', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, ['event1', 'event2', 'event3'], spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
off(eventTarget, ['event1', 'event2', 'event3'], spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy).toHaveBeenCalledTimes(3)
})
it('unbinds a namespaced event', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, 'event.namespace', spy)
dispatch(eventTarget, 'event')
off(eventTarget, 'event.namespace', spy)
dispatch(eventTarget, 'event')
expect(spy).toHaveBeenCalledTimes(1)
})
it('unbinds all events including namespaced ones when only event is passed', () => {
const eventTarget = new EventTarget()
const spy = createSpy('spy')
on(eventTarget, ['event1.ns1', 'event2.ns2', 'event3'], spy)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
off(eventTarget, ['event1', 'event2', 'event3'])
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy).toHaveBeenCalledTimes(3)
})
it('unbinds with namespace only', () => {
const eventTarget = new EventTarget()
const spy1 = createSpy('spy1')
const spy2 = createSpy('spy2')
const spy3 = createSpy('spy3')
on(eventTarget, 'event1.ns1', spy1)
on(eventTarget, 'event2.ns1', spy2)
on(eventTarget, 'event3.ns2', spy3)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
off(eventTarget, '.ns1')
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy1).toHaveBeenCalledTimes(1)
expect(spy2).toHaveBeenCalledTimes(1)
expect(spy3).toHaveBeenCalledTimes(2)
})
it('unbinds all events when called without event', () => {
const eventTarget = new EventTarget()
const spy1 = createSpy('spy1')
const spy2 = createSpy('spy2')
const spy3 = createSpy('spy3')
on(eventTarget, 'event1.ns1', spy1)
on(eventTarget, 'event2.ns1', spy2)
on(eventTarget, 'event3.ns2', spy3)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
off(eventTarget)
dispatch(eventTarget, 'event1')
dispatch(eventTarget, 'event2')
dispatch(eventTarget, 'event3')
expect(spy1).toHaveBeenCalledTimes(1)
expect(spy2).toHaveBeenCalledTimes(1)
expect(spy3).toHaveBeenCalledTimes(1)
})
})
describe('dispatch()', () => {
it('dispatches a custom event on the EventTarget by calling dispatchEvent()', () => {
const eventTarget = new EventTarget()
const spy = spyOn(eventTarget, 'dispatchEvent')
const event = dispatch(
eventTarget,
'event',
{ some: 'data' },
{ cancelable: false }
)
expect(event).toEqual(any(getWindow().CustomEvent))
expect(spy).toHaveBeenCalledWith(event)
expect(event.detail).toEqual({ some: 'data' })
expect(event.cancelable).toBe(false)
})
it('dispatches the passed event directly', () => {
const eventTarget = new EventTarget()
const spy = spyOn(eventTarget, 'dispatchEvent')
const CustomEvent = getWindow().CustomEvent
const event1 = new CustomEvent('event', { detail: { some: 'data' } })
const event2 = dispatch(eventTarget, event1)
expect(event1).toBe(event2)
expect(spy).toHaveBeenCalledWith(event1)
})
})
})
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