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Shingo Tamaki
July 24, 2018
Technology
2
750
presentation.pdf
WWDC 2018のWhat's New in Testingのダイジェスト版です。
Shingo Tamaki
July 24, 2018
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Transcript
What's New in Testing
What's New in Testing 2018
ࣗݾհ ۄ৴ޛ iOS Engineer Appium
Agenda 1. Code Coverage 2. Test Selection and Order 3.
Parallel Testing
Code Coverage
Code CoverageʢXcode 9.3ʣ • ΧόϨοδදࣔ·Ͱͷ࣌ؒॖ • Xcode9ͱൺ95%ߴԽ • ΧόϨοδϑΝΠϧͷαΠζμϯ •
Xcode9ͱൺ1/10ҎԼ • C++ʹ͓͚ΔϔομϑΝΠϧʹهड़͞Ε࣮ͨͷΧόϨοδ ऩू͕Մೳʹ
Code CoverageʢXcode 9.3ʣ • λʔήοτͷબ • ΧόϨοδऩूͷରΛλʔήοτ୯ҐͰબՄೳ • ex) ϥΠϒϥϦͷαϯϓϧίʔυͷΧόϨοδͷใ
ཉ͘͠ͳ͍
xccov • ΧόϨοδσʔλΛѻ͏CLIπʔϧ • Coverage data • xccovreport: ֤λʔήοτɺιʔεϑΝΠϧɺ͓Αͼؔ ͷΧόϨοδͷׂ߹ͳͲؚ͕·ΕΔ
• xccovarchive: Ϩϙʔτͷ֤ϑΝΠϧͷੜͷ࣮ߦճ͕ ؚ·ΕΔ
xccov • xccov view hoge.xccovreport Name Coverage ---------------------------------------------------------------------------------- ------------- SampleLib.framework
100.00% (3/3) /Users/you/SampleLib/Classes/SampleLib.swift 100.00% (3/3) static SampleLib.SampleLib.foo() -> Swift.String 100.00% (3/3)
xccov • xccov view hoge.xccovreport --json | jq { "coveredLines":
3, "lineCoverage": 1, "targets": [ { "coveredLines": 3, "lineCoverage": 1, "files": [ { "coveredLines": 3, "lineCoverage": 1, "path": "/Users/you/SampleLib/Classes/SampleLib.swift", "functions": [ { "coveredLines": 3, "lineCoverage": 1, "lineNumber": 11, "executionCount": 1, "name": "static SampleLib.SampleLib.foo() -> Swift.String", "executableLines": 3 } ], "name": "SampleLib.swift", "executableLines": 3 } ], "name": "SampleLib.framework", "executableLines": 3, "buildProductPath": "/Users/you/Library/Developer/Xcode/DerivedData/.../SampleLib.framework/SampleLib" } ], "executableLines": 3 }
Test Selection and Order
Test Selection and Order • εΩʔϜຖʹλʔήοτͷςετΛࣗಈՃ͢Δ͔Ͳ͏͔બ ΔΑ͏ʹͳͬͨ • ςετͷ࣮ߦॱΛϥϯμϜʹग़དྷΔ༷ʹͳͬͨ •
࣮ߦॱংʹґଘͨ͠ςετΛݕग़͘͢͠ͳΔ • ґଘΛແ͘͠setup/teardownΛͬͯඞཁͳঢ়ଶ࡞Γ ·͠ΐ͏
Parallel Testing
!
Parallel Testing • ͜Ε·Ͱͷฒྻςετ • ෳͷγϛϡϨʔλͰશͯͷςετΛ࣮ߦ • xcodebuild͔ΒͷΈαϙʔτ͍ͯͨ͠
None
Parallel Distributed Testing • ಉҰγϛϡϨʔλͰͷςετͷฒྻ࣮ߦ͕Մೳʹͳͬͨ • Xcodeͱxcodebuildͷ྆ํͰߦ͑Δ • ςετΫϥε୯ҐͰࢄ͞ΕΔ •
ςετࢦఆͨ͠γϛϡϨʔλͷΫϩʔϯ͕ඞཁͳ͚ͩىಈ ࣮͠ߦ͞ΕΔ
None
Ҏ্
͓·͚
man xccov xccovͷ͍ํΛৄࡉʹΓ͍ͨ߹man xccovΛݟͨํ͕ྑ ͍ xccov helpxccov help viewͰදࣔ͞ΕΔใ؆ૉʹॻ͔Ε ͍ͯΔ
xcrunলུ͍ͨ͠ xcrunൈ͖Ͱxccovୟ͖͍ͨͳΒ /Applications/Xcode.app/Contents/Developer/usr/bin/ ʹύε௨͠·͠ΐ͏ simctlͳͲͷଞͷ։ൃऀπʔϧΛ͏ͷʹศརͰ͢ɻ
xcodebuild option ฒྻςετ༻ͷΦϓγϣϯ͕૿͑·ͨ͠ //ฒྻςετͷϫʔΧʔͷࢦఆ -parallel-testing-worker-count n //ฒྻςετͷ࣮ߦΦϓγϣϯ -parallel-testing-enabled YES |
NO
ࢀߟURL What's New in Testing https://developer.apple.com/videos/play/wwdc2018/403/ xccov: Xcode Code Coverage
Report for Humans https://medium.com/xcblog/xccov-xcode-code-coverage- report-for-humans-466a4865aa18