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Chromaticで手軽にVisual Regression Testを導入する / Visu...
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Shingo Yamazaki
June 28, 2019
Technology
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1.6k
Chromaticで手軽にVisual Regression Testを導入する / Visual Regression Testing with Chromatic
We Are JavaScripters! @33rd【初心者歓迎・LT会】の登壇資料です
デモ動画:
https://youtu.be/9qsX_UsyG-g
Shingo Yamazaki
June 28, 2019
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Transcript
ChromaticͰ खܰʹ Visual Regression TestΛ ಋೖ͢Δ 2019/06/28 We Are JavaScripters!
@33rd
࠷ۙௐ͍ͯͨ πʔϧͷΛ͠·͢
• Shingo Yamazaki • αΠϘζגࣜձࣾ (2018/12~) • kintone ։ൃνʔϜɹ݉ ϑϩϯτΤϯυΤΩεύʔτνʔϜ
• #WeJS ॳࢀՃͰ͢ About me zaki-yama zaki___yama
• ͱ͋ΔUIίϯϙʔωϯτϥΠϒϥϦ։ൃͷ ͓ख͍Λ͍ͯ͠Δ • JS -> TypeScript Ҡߦ͕ϝΠϯ • ʮUI
ίϯϙʔωϯτ͕σάϨͯ͠ͳ͍͜ͱΛ୲อ͢Δ ͘͠Έʗπʔϧ͕΄͍͠Ͷʯͱ͍͏͕͋ͬͨ • ݱࡏ Storybook + Storyshots Λར༻த Intro
• UIίϯϙʔωϯτͷ։ൃ & ϒϥδϯάڥΛఏڙ ͢ΔOSS • ίϯϙʔωϯτΛΞϓϦ έʔγϣϯͱಠཱͨ͠ڥ Ͱ։ൃͰ͖Δ •
ಈ࡞͢Δίϯϙʔωϯτ͕ ҰཡͰݟΒΕΔ Storybook?
• StorybookͷΞυΦϯ • JestͷSnapshot TestingΛར༻ • ίϯϙʔωϯτͷSnapshotΛऔ ಘ͠ɺอଘͯ͋͠Δͷͱൺֱ • DOMͷൺֱͳͷͰɺελΠϧͷ
่Εͱ͔ݕͰ͖ͣ Storyshots? IUUQTTUPSZCPPLKTPSHEPDTUFTUJOHTUSVDUVSBMUFTUJOH
https://twitter.com/domyen/status/1138861429669412864?s=20
https://twitter.com/domyen/status/1138861429669412864?s=20 %FTJHOTZTUFN͓͖ͯ͞ ͜ͷπʔϧؾʹͳΔ
Chromatic
Chromatic
• Visual Testing Λͬͯ͘ΕΔαʔϏε • “Made for Storybook by Storybook
maintainers” • OSSແྉ Chromatic
DEMO
͍ํ
• Storybook ಋೖࡁΈͷGitHubϦϙδτϦΛ༻ҙ • https://www.chromaticqa.com/ ʹΞΫηε • GitHubΞΧϯτͰSign in •
Add project ͰϦϙδτϦΛબ ΞΧϯτొ #JUCVDLFU (JU-BC ʹରԠ
ϦϙδτϦଆͰඞཁͳͷ3 Step $ISPNBUJDΛ Πϯετʔϧ TUPSZCPPLDPOpHKTʹ ߦՃ εΫϦϓτ࣮ߦ project͝ͱʹϢχʔΫͳapp code
͜ͷ63-ʹΞΫηε
• ͋ͱchromatic testͷͨͼʹbuild & diffൺֱ ॳճͷbuildޭ
package.json CIͷઃఆ(CircleCIͷ߹) .circleci/config.yml
• \ • CIͷઃఆ(CircleCIͷ߹) BQQDPEFͰ͍ͯͨ͠
Ͱ͖ͨ
EJ⒎Λ֬ೝ͠ɺ"DDFQU%FOZ શ෦νΣοΫ͢Δͱ(JU)VCଆͷεςʔλ εߋ৽͞ΕΔ %0.ʹมߋ͋Ε͜͜ʹදࣔ͞ΕΔ
ศརͳػೳ
ίϯϙʔωϯτΛදࣔ͠ͳ͕ΒɺҟͳΔϒϥϯ νաڈͷϏϧυ݁ՌʹΓସ͑ΒΕΔ Library
※Standard/Pro ϓϥϯͷΈ Multi Browser Support
ࢦఆͨ͠ViewportͰෳͷSnapshotΛࡱͬͯ͘ ΕΔ Viewports
Tips
• ͕ࠩ͋ͬͯϏϧυࣗମPassʹ͢Δ • ͚ͭͳ͍ͱʮશ෦Accept͚ͨ͠ͲCircleCIͷ εςʔλεFailedͰϚʔδͰ͖ͳ͍ʯͱͳΔ CI༻ͷεΫϦϓτʹ --exit-zero-on-changesΛ͚ͭΔ
Open source plan৹͕ࠪඞཁ 4JHOJOͨ͠Βී௨ʹ͑ͨͷͰ 1VCMJD3FQPTJUPSZͳΒͳΜͰ0,ͳͷ͔ͱࢥͬͯ·ͨ͠
• ҰԠChatͰฉ͍͚ͨͲ ͬͺΓͦ͏ͬΆ͍ Open source plan৹͕ࠪඞཁ
• ໌ه͞Εͯͳ͍͕ ͜ΕChatͰฉ͍ͯΈͨ • গͳ͘ͱBrowser ChromeͷΈͱͷ͜ͱ Open source plan starter
planѻ͍ʁ
ຊޠϑΥϯτ͕… ͜Ε͕ ͜͏ͳͬͨ
• .storybook/preview-head.htmlͰ web fontಡΈࠐ·ͤͯΈ͚ͨͲͩΊͰͨ͠ ຊޠϑΥϯτ͕…
• ։ൃνʔϜʹ ϑΟʔυόοΫ͢Δɺ ͱݴͬͯͨ ຊޠϑΥϯτ͕…
• StorybookΛར༻͍ͯ͠ΔϓϩδΣΫτʹ ͔ͳΓ͓खܰʹಋೖͰ͖Δ • diffएׯݟͮΒ͍ʢओ؍ʣ͚Ͳػೳे • ଞπʔϧͱൺֱͨ͠Θ͚Ͱͳ͍Ͱ͕͢ • OSSͳΒແྉʢͨͩ͠৹ࠪ͋Γʣ ·ͱΊ