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add composition tests for providable #261

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May 26, 2022
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add composition tests for providable #261

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60 changes: 50 additions & 10 deletions test/providable.ts
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Original file line number Diff line number Diff line change
@@ -1,9 +1,13 @@
import {expect, fixture, html} from '@open-wc/testing'
import {fake} from 'sinon'
import {provide, consume, providable, ContextEvent} from '../src/providable.js'
import {target, targetable} from '../src/targetable.js'
import {attr, attrable} from '../src/attrable.js'

describe('Providable', () => {
const sym = Symbol('bing')
@attrable
@targetable
@providable
class ProvidableProviderTest extends HTMLElement {
@provide foo = 'hello'
Expand All @@ -13,6 +17,8 @@ describe('Providable', () => {
}
@provide [sym] = {provided: true}
@provide qux = 8
@provide @attr testAttribute = ''
@provide @target target!: HTMLElement
}
window.customElements.define('providable-provider-test', ProvidableProviderTest)

Expand Down Expand Up @@ -40,6 +46,8 @@ describe('Providable', () => {
@consume set qux(value: number) {
this.count += 1
}
@consume target!: HTMLElement
@consume testAttribute = ''
connectedCallback() {
this.textContent = `${this.foo} ${this.bar}`
}
Expand Down Expand Up @@ -74,7 +82,7 @@ describe('Providable', () => {
})

it('emits the `context-request` event when connected, for each field', async () => {
expect(events).to.have.callCount(5)
expect(events).to.have.callCount(7)
const fooEvent = events.getCall(0).args[0]
expect(fooEvent).to.be.instanceof(ContextEvent)
expect(fooEvent).to.have.nested.property('context.name', 'foo')
Expand Down Expand Up @@ -106,13 +114,27 @@ describe('Providable', () => {
const quxEvent = events.getCall(4).args[0]
expect(quxEvent).to.be.instanceof(ContextEvent)
expect(quxEvent).to.have.nested.property('context.name', 'qux')
expect(quxEvent).to.have.nested.property('context.initialValue').eql(0)
expect(quxEvent).to.have.nested.property('context.initialValue', 0)
expect(quxEvent).to.have.property('multiple', true)
expect(quxEvent).to.have.property('bubbles', true)

const targetEvent = events.getCall(5).args[0]
expect(targetEvent).to.be.instanceof(ContextEvent)
expect(targetEvent).to.have.nested.property('context.name', 'target')
expect(targetEvent).to.have.nested.property('context.initialValue', undefined)
expect(targetEvent).to.have.property('multiple', true)
expect(targetEvent).to.have.property('bubbles', true)

const attrEvent = events.getCall(6).args[0]
expect(attrEvent).to.be.instanceof(ContextEvent)
expect(attrEvent).to.have.nested.property('context.name', 'testAttribute')
expect(attrEvent).to.have.nested.property('context.initialValue', '')
expect(attrEvent).to.have.property('multiple', true)
expect(attrEvent).to.have.property('bubbles', true)
})

it('changes value based on callback new value', async () => {
expect(events).to.have.callCount(5)
expect(events).to.have.callCount(7)
const fooCallback = events.getCall(0).args[0].callback
fooCallback('hello')
expect(instance).to.have.property('foo', 'hello')
Expand All @@ -123,7 +145,7 @@ describe('Providable', () => {
it('disposes of past callbacks when given new ones', async () => {
const dispose1 = fake()
const dispose2 = fake()
expect(events).to.have.callCount(5)
expect(events).to.have.callCount(7)
const fooCallback = events.getCall(0).args[0].callback
fooCallback('hello', dispose1)
expect(dispose1).to.have.callCount(0)
Expand All @@ -144,10 +166,11 @@ describe('Providable', () => {
let provider: ProvidableProviderTest
beforeEach(async () => {
provider = await fixture(
html`<providable-provider-test
><div>
<span><strong></strong></span></div
></providable-provider-test>`
html`<providable-provider-test>
<div>
<span><strong></strong></span>
</div>
</providable-provider-test>`
)
})

Expand Down Expand Up @@ -193,7 +216,7 @@ describe('Providable', () => {
let provider: ProvidableProviderTest
let consumer: ProvidableConsumerTest
beforeEach(async () => {
provider = await fixture(html`<providable-provider-test>
provider = await fixture(html`<providable-provider-test test-attribute="x">
<main>
<article>
<section>
Expand All @@ -203,6 +226,7 @@ describe('Providable', () => {
</section>
</article>
</main>
<small data-target="providable-provider-test.target"></small>
</providable-provider-test>`)
consumer = provider.querySelector<ProvidableConsumerTest>('providable-consumer-test')!
})
Expand All @@ -212,7 +236,9 @@ describe('Providable', () => {
expect(consumer).to.have.property('bar', 'world')
expect(consumer).to.have.property('baz', 3)
expect(consumer).to.have.property(sym).eql({provided: true})
expect(consumer).to.have.property('qux').eql(8)
expect(consumer).to.have.property('qux', 8)
expect(consumer).to.have.property('target', provider.querySelector('small')!)
expect(consumer).to.have.property('testAttribute', 'x')
})

it('updates values provided if they change', () => {
Expand All @@ -222,6 +248,20 @@ describe('Providable', () => {
expect(consumer).to.have.property('foo', 'greetings')
})

it('updates @provide @attr values if they change', async () => {
provider.setAttribute('test-attribute', 'y')
await Promise.resolve()
expect(consumer).to.have.property('testAttribute', 'y')
})

it('updates @provide @target values if they change', async () => {
const big = document.createElement('big')
big.setAttribute('data-target', 'providable-provider-test.target')
provider.prepend(big)
await Promise.resolve()
expect(consumer).to.have.property('target', big)
})

it('calls consumer set callbacks when the value is updated', () => {
expect(consumer).to.have.property('qux', 8)
expect(consumer).to.have.property('count', 1)
Expand Down