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Vueコンポーネントのユニットテスト
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hypermkt
July 07, 2017
Programming
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Vueコンポーネントのユニットテスト
Vueコンポーネントのユニットテスト
Vue.js Tokyo v-meetup #4
https://vuejs-meetup.connpass.com/event/58071/
hypermkt
July 07, 2017
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Transcript
όʔνʔ(.01&1"#0JOD 7VFKT.FFUVQ 7VFίϯϙʔωϯτͷ Ϣχοτςετ
ιϑτΣΞΤϯδχΞ <b1)1FS` b7VFKT` b3BJMT`> Ξχϝ෦෦ όʔνʔ!IZQFSNLU IUUQCMPHIZQFSNLUKQ
7VFίϯϙʔωϯτͷ Ϣχοτςετ
ຊͷରऀ wओʹ7VFίϯϙʔωϯτͷςετΛॻ͍͍ͯΔਓ wࠓޙ7VFίϯϙʔωϯτͷςετΛॻ͖͍ͨਓ
ίϯϙʔωϯτͷςετͰͪΐͬͱࠔΔγʔϯᶃ it('จࣈྻ͕ೖྗ͞ΕͨΒɺAPI͕1ճݺΕΔ', () => { stub = sinon.stub(api, 'checkAccount') const
Constructor = Vue.extend(Event) const vm = new Constructor().$mount() const input = vm.$el.querySelector('input') const event = document.createEvent('HTMLEvents') event.initEvent('input', true, true) input.dispatchEvent(event) expect(stub.calledOnce).to.be.true }) <template> <div> Account: <input type="text" @input="checkAccount" > </div> </template> <script> import api from '../libs/api' export default { data () { return { msg: '' } }, methods: { checkAccount: () => { api.checkAccount() } } } </script> ίϯϙʔωϯτ ςετέʔε จࣈྻೖྗ͞ΕͨΒ"1*ͰνΣοΫ͢Δ JOQVUΠϕϯτΛൃੜͤ͞Δͷ͕खؒɾɾɾ
ίϯϙʔωϯτͷςετͰͪΐͬͱࠔΔγʔϯᶄ <template> <div> <p>{{ msg }}</p> <child></child> </div> </template> <script>
import Child from './Child.vue export default { components: { 'child': Child }, data () { return { msg: ‘Hello World' } } } </script> ࢠίϯϙʔωϯτͰ)551ܦ༝ͷ "1*ΛݺΜͰ͍Δɻ ͜ͷίϯϙʔωϯτͷςετͷΈʹ ूத͍ͨ͠ͷʹɺࢠίϯϙʔωϯτ ͕अຐͰςετ͕ͮ͠Β͍ɻ
ͬͱ؆୯ʹ7VFίϯϙʔωϯτͷ ςετ͕ॻ͚ͳ͍ͷ͔ʁ
7VFKT༻ςετϥΠϒϥϦͩʂ
୳ͨ͠Βͨ͘͞Μ͋ͬͨ wWVFUFTU wBWPSJB[ wWVFVOJU wWVFUFTUJOH wSFWVF wWVFOJU
ొͨ࣌͠ظ͍͍ͩͨಉ͡ wWVFUFTU wBWPSJB[ wWVFVOJU wWVFUFTUJOH wSFWVF wWVFOJU
ػೳ͍͍ͩͨಉ͡ w4IBMMPX'VMM3FOEFSJOH w%0.&WFOU5SJHHFS w7VFY 3PVUFS )551ͷϞοΫελϒ w"TTFSUJPO w%0.4FMFDUPS
ެࣜͷςετϥΠϒϥϦ͕ ແ͍ͩΖ͏͔ʁ
IUUQTGPSVNWVFKTPSHUJTBOZUIJOHCFJOHEPOFJODPSFWVFUPNBLFVOJUUFTUJOHFBTJFS
WVFUFTUVUJMTͷొ
WVFUFTUVUJMTͷݱঢ় wBWPSJB[։ൃऀͷ!FEEZFSCVSHIࢯ͕ϝΠϯͰ։ൃத wWVFUFTU SFWVF WVFVOJU WVFOJUͷ։ൃ͕ҙݟΛग़ ͠߹͍ w։ൃऴ൫ɻॳظ50%0ͷׂྃ wݱࡏυΩϡϝϯτ४උத wۙʑЌ൛͕ϦϦʔε͞Εͦ͏ͳ༧ײ
࣌
WVFUFTUVUJMT ·ͩЌ൛͢ΒϦϦʔε͞Ε͍ͯͳ͍Ͱ ݱঢ়Ͱਂ͘͏ͷ࣌ظঘૣ
WVFUFTUVUJMTBWPSJB[Λ౿ऻͯ͠։ൃ͞Ε͍ͯΔɻ BWPSJB[ΛΔ͜ͱͰWVFUFTUVUJMTΛઌऔΓ͠Α͏ʂ
BWPSJB[ B7VFKTUFTUJOHVUJMJUZMJCSBSZ IUUQTHJUIVCDPNFEEZFSCVSHIBWPSJB[
BWPSJB[ͷػೳ wK2VFSZϥΠΫͳηϨΫλʔ w%0.ΠϕϯττϦΨʔ w4IBMMPX 'VMMϨϯμϦϯά
BWPSJB[ͷྑ͍ͱ͜Ζ wγϯϓϧͳ"1* wυΩϡϝϯτ͕๛ w֤ςετϥΠϒϥϦผͷαϯϓϧίʔυ๛
$PNQPOFOUͷςετख๏ w*TPMBUFE5FTUJOH w $PNQPOFOUͷϩδοΫͷΈΛςετ͢Δ w4IBMMPX5FTUJOH w ࢠίϯϙʔωϯτϨϯμϦϯάͤͣɺࣗͷ$PNQPOFOUͷΈΛϨϯμϦϯάͯ͠ςε τ͢Δ w*OUFHSBUJPO5FTUJOH w
ࢠίϯϙʔωϯτશͯϨϯμϦϯάͯ͠ςετ͢Δ w&WFOU5FTUJOH w %0.ΠϕϯτΛൃੜͤ͞ɺఆ͢ΔڍಈΛ͢Δ͔ςετ͢Δ
$PNQPOFOUͷςετख๏ w*TPMBUFE5FTUJOH w $PNQPOFOUͷϩδοΫͷΈΛςετ͢Δ w4IBMMPX5FTUJOH w ࢠίϯϙʔωϯτϨϯμϦϯάͤͣɺࣗͷ$PNQPOFOUͷΈΛϨϯμϦϯάͯ͠ςε τ͢Δ w*OUFHSBUJPO5FTUJOH w
ࢠίϯϙʔωϯτશͯϨϯμϦϯάͯ͠ςετ͢Δ w&WFOU5FTUJOH w %0.ΠϕϯτΛൃੜͤ͞ɺఆ͢ΔڍಈΛ͢Δ͔ςετ͢Δ
4IBMMPXϨϯμϦϯά
՝ <template> <div> <p>{{ msg }}</p> <child></child> </div> </template> <script>
import Child from './Child.vue export default { components: { 'child': Child }, data () { return { msg: ‘Hello World' } } } </script> ࢠίϯϙʔωϯτͰ)551ܦ༝ͷ "1*ΛݺΜͰ͍Δɻ ͜ͷίϯϙʔωϯτͷςετͷΈʹ ूத͍ͨ͠ͷʹɺࢠίϯϙʔωϯτ ͕अຐͰςετ͕ͮ͠Β͍ɻ
ղܾ๏ɿ4IBMMPXϨϯμϦϯάΛར༻͢Δ w4IBMMPXϨϯμϦϯάͱɺࢠίϯϙʔωϯτΛల։ ͤͣʹϨϯμϦϯά͢Δ͜ͱ wBWPSJB[ͰTIBMMPXػೳΛར༻͢Δ͜ͱͰɺશͯͷࢠ ίϯϙʔωϯτΛελϒ ʹͳΔʣͯ͠ɺϨϯμ Ϧϯάͨ͠ϥούʔΦϒδΣΫτΛฦ͢
<template> <div> <p>{{ msg }}</p> <child></child> </div> </template> <script> import
Child from './Child.vue export default { components: { 'child': Child }, data () { return { msg: ‘Hello World' } } } </script> import Welcome from ‘../../src/components/Welcome.vue’ import { shallow } from 'avoriaz' describe('avoriaz༗Γͷςετέʔε', () => { it('Pλά͕ਖ਼ৗʹϨϯμϦϯά͞Ε͍ͯΔ͔', () => { const wrapper = shallow(Welcome) expect(wrapper.find(‘p')[0].text()).to.be.eql('Hello World') }) }) ίϯϙʔωϯτ ςετέʔε TIBMMPXΛ༻ͨ͠ςετέʔε
͜ΕͰςετ͍ͨ͠ίϯϙʔωϯτ ͚ͩʹूதͰ͖Δʂʂ
*OUFHSBUJPO5FTU
՝ <template> <div> <p>{{ msg }}</p> <child></child> </div> </template> <script>
import Child from './Child.vue export default { components: { 'child': Child }, data () { return { msg: ‘Hello World' } } } </script> ࢠίϯϙʔωϯτؚΊͯը໘શମ ͕ਖ਼ৗʹϨϯμϦϯά͞Ε͍ͯΔͷ Λ֬ೝ͍ͨ͠ɻ
ղܾ๏ɿ'VMMϨϯμϦϯάΛར༻͢Δ w'VMMϨϯμϦϯάͱɺίϯϙʔωϯτશମΛϨϯμ Ϧϯά͢Δ wBWPSJB[ͰNPVOUػೳΛར༻͢Δ͜ͱͰɺ'VMMϨϯ μϦϯά͞ΕͨϥούʔΦϒδΣΫτΛऔಘͰ͖Δ
<template> <div> <p>{{ msg }}</p> <child></child> </div> </template> <script> import
Child from './Child.vue export default { components: { 'child': Child }, data () { return { msg: ‘Hello World' } } } </script> import Welcome from ‘../../src/components/Welcome.vue’ import { mount } from 'avoriaz' describe('avoriaz༗Γͷςετέʔε', () => { it('Pλά͕ਖ਼ৗʹϨϯμϦϯά͞Ε͍ͯΔ͔', () => { // mount: ϑϧϨϯμϦϯά͞ΕͨίϯϙʔωϯτͷϥούʔΦϒδΣΫτΛฦ͢ const wrapper = mount(Welcome) // find: DOMͷྻΛฦ͢ // text: ϥούʔΦϒδΣΫτͷจࣈྻίϯςϯπΛฦ͢ expect(wrapper.find(‘p')[0].text()).to.be.eql('Hello World') }) }) ίϯϙʔωϯτ ςετέʔε NPVOUΛར༻ͨ͠ςετέʔε
&WFOU5FTUJOH
՝ it('จࣈྻ͕ೖྗ͞ΕͨΒɺAPI͕1ճݺΕΔ', () => { stub = sinon.stub(api, 'checkAccount') const
Constructor = Vue.extend(Event) const vm = new Constructor().$mount() const input = vm.$el.querySelector('input') const event = document.createEvent('HTMLEvents') event.initEvent('input', true, true) input.dispatchEvent(event) expect(stub.calledOnce).to.be.true }) <template> <div> Account: <input type="text" @input="checkAccount" > </div> </template> <script> import api from '../libs/api' export default { data () { return { msg: '' } }, methods: { checkAccount: () => { api.checkAccount() } } } </script> ίϯϙʔωϯτ ςετέʔε จࣈྻೖྗ͞ΕͨΒ"1*ͰνΣοΫ͢Δ JOQVUΠϕϯτΛൃੜͤ͞Δͷ͕खؒɾɾɾ
ղܾ๏ɿUSJHHFSΛར༻͢Δ wUSJHHFS FWFOU/BNF ࢦఆͨ͠ΠϕϯτΛݺͼग़͢ ͜ͱ͕ग़དྷΔ
BWPSJB[ͩͱΠϕϯτൃੜ͕Ͱ͖Δʂ it('จࣈྻ͕ೖྗ͞ΕͨΒɺAPI͕1ճݺΕΔ', () => { stub = sinon.stub(api, 'checkAccount') const
wrapper = mount(Event) wrapper.find('input')[0].trigger('input') expect(stub.calledOnce).to.be.true })
·ͱΊ
·ͱΊ wWVFUFTUVUJMTɺ։ൃதͳͷͰࠓޙͲ͏ͳΔ͔·ͩ ͔Βͳ͍ɻ wBWPSJB[Λར༻͢Εɺ؆୯ʹίϯϙʔωϯτͷςε τ͕ॻ͚ΔΑ͏ʹͳΔɻ wBWPSJB[ͱWVFUFTUVUJMT"1*͕͍͍ͩͨಉ͡ͳͷ ͰɺΓָ͑ɻࠓ͔ΒͰBWPSJB[Λ͏ͷ༗ Γɻ