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go1.22͔ΒͷςετΧόϨοδͱͷ͖߹͍ํ
Go BASH 2024/06/18
גࣜձࣾΤϒϦʔ Ryoji Miyamoto
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• ࣗݾհ
• ΤϒϦʔͷհ
• go1.22͔ΒͷςετΧόϨοδͷ༷มߋ
• ͲͷΑ͏ͳ͕ٞ͋ͬͨͷ͔ɺมΘͬͨഎܠΛ͏
• ࣮ʹ߹Θͤͯରॲͯ͠ΈΔ
• ·ͱΊ
͓ॻ͖
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ࣗݾհ
{
"name😀": "Ryoji Miyamoto",
"team👥": "DEV_TTD_SE",
"birthday🎂": "1994/08/22",
"local🏠": "Ѫඤݝീ഼ࢢ",
"career😎": {
"2017/04": "ઍגࣜձࣾೖࣾ👻",
"2020/12": "ΤϒϦʔೖࣾ🙌"
},
"like❤": [
"ήʔϜ/Ξχϝ🎮",
"όΠΫ/Ωϟϯϓ🛵🏕",
"ຊञ🍶"
]
}
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ΤϒϦʔͷհ
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ΤϒϦʔͷύʔύεɺϛογϣϯ
໌Δ͍มԽͷੵΈॏͳΔΒ͠Λɺ୭ʹͰɻ
ʮwell-beingʢΣϧϏʔΠϯάʣʯ
ͦͷ࣮ݱͷͨΊʹਓੜʹ͓͍ͯ୭͕࠷దͳબΛͰ͖Δ͔Ͳ͏͔ॏཁͰ͢ɻ
ਐԽ͠ଓ͚ΔςΫϊϩδʔʹΑͬͯΦϯϥΠϯɾΦϑϥΠϯؔͳ͘ɺ
͞·͟·ͳใʹ৮ΕΔ͜ͱ͕Ͱ͖Δ࣌ɻ
ΤϒϦʔɺσʔλɾAIΛ༻͍ͯ࠷దͳใΛͱͲ͚Δ͜ͱͰ
ʑͷੜ׆ʹ͓͚Δෆ҆ΈΛղফ͍ͨ͠ͱߟ͍͑ͯ·͢ɻ
ࢲ͕ͨͪࢦ͢ͷɺਓ͕ຖΛาΉɺͦͷಓͷΓͷύʔτφʔͰ͋Δ͜ͱɻ
Մೳੑؾ͖ͮΛ͑ɺͱ͖ʹࢥΘ͵ग़ձ͍Ͱɺؾ࣋ͪΛ๛͔ʹ͍ͯ͘͜͠ͱɻ
Θͨͨͪ͠ΤϒϦʔɺ
ͻͱΓͻͱΓͷৗʹɺલ͖ͳ͖͔͚ͬΛͱͲ͚͍͖ͯ·͢ɻ
୭ʹͰɺ໌Δ͍มԽͷੵΈॏͳΔΒ͕͠๚ΕΔΑ͏ʹɻ
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اۀ׆ಈΛ௨࣮ͯ͡ݱ͍ͨ͜͠ͱ
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ΤϒϦʔ͕ఏڙ͍ͯ͠ΔϓϩμΫτɺιϦϡʔγϣϯҰཡ
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ຊ
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go 1.22ʹօ͞ΜΞϓσ͠·͔ͨ͠ʁ
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ͦͷ࣌ʹΧόϨοδԼ͕Γ·ͤΜͰ͔ͨ͠ʁ
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ͪͳΈʹτϞχςͷͱ͋ΔϦϙδτϦͰͬͨͱ͜Ζ
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ڻ͖ʹ70% OFFʂ
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go test -cover յΕͨʁ
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NO
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go1.22ͷϦϦʔεϊʔτʹ༷มߋͷ͓͋Γ·͢ʂ
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ϦϦʔεϊʔτͰͷ͓ͷཁ
• Go 1.22Ҏ߱ɺςετϑΝΠϧͷͳ͍ύοέʔδͰΧόϨοδ͕දࣔ͞ΕΔ
• ͕ؔΧόʔ͞Ε͍ͯͳ͍߹0.0%ѻ͍
• ࣮ߦՄೳͳίʔυ͕શ͘ͳ͍߹ɺʮςετϑΝΠϧ͕ͳ͍ʯͱใࠂ͞ΕΔ
• ex.) ߏମΠϯλʔϑΣʔεͷఆٛͷΈͰ͕ؔͳ͍߹ͳͲ
~ go1.21
go1.22
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ςετΧόϨοδͷঢ়گΛΑΓৄࡉʹѲͰ͖ΔΑ͏ʹͳͬͨ
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ࠓճΧόϨοδԼͰݕग़͞Εͨͷ
• ࣗಈੜܥͷͷ
• ΤϯυϙΠϯτੜ(OpenAPI, GraphQLͷδΣωϨʔλ)
• ORM
• ҙਤతʹॻ͍ͯͳ͍࣮
• ςετ༰͕ςετίʔυ࡞࣌ͷ࿑ྗʹݟ߹ͬͯͳ͍ͷ
• ඞཁͳςετڥ͕ෳࡶ
• νʔϜϓϩδΣΫτنʹΑͬͯSkipͯ͠Δͱ͜Ζ
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• GOEXPERIMENT = nocoverageredesignΛ͚ͭΔ
• ͨͩ༧ࠂͳ͘͜ͷࢦఆͰ͖ͳ͘ͳΔՄೳੑ͋ΔͷͰকདྷੑո͍͠
• ྲྀੴʹҰ࣌͠ͷ͗ͳͷͰΑΖ͘͠ͳ͍
લͱಉ͡ڍಈʹ͢ΔͳΒ…
GOEXPERIMENT=nocoverageredesign go test -cover ./...
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༷͕มΘͬͨͷѲ͚ͨ͠ͲͳΜͰʁ
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• cmd/go: go test -cover & go test -coverprofile should always output a coverage #24570
• ΧόϨοδϨϙʔτͷग़ྗํࣜʹ͍ͭͯվળͷ༨͋Γͱ͍͏
• ٞࣗମ2018/03/18͔Β
• ࣌go1.10࣌
• Go 1.10 Release Notes
• ςετ݁ՌΛΩϟογϡ͢Δ
• ҰʹෳύοέʔδͷΧόϨοδ͕औΕΔ ←͜͜
ىථ࣌ͷഎܠ
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• ҰʹෳύοέʔδͷΧόϨοδ͕औΕΔΑ͏ʹͳͬͨ
• ͕ͩςετ͕ͳ͍ͷ͕ܭ্͞Ε͍ͯͳ͍
• ٯʹҰͰରͷ͕ؔςετ͞Ε͍ͯΕܭ্͞ΕΔ
→ΧόϨοδܭଌൣғʹରͯ͠ͷશମͷׂ߹Λग़͍ͨ͠
Կ͕ٞͷରͱͳͬͨͷ͔
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• ςετϑΝΠϧͷͳ͍ύοέʔδʹ͍ͭͯΧόϨοδ(0%)Λग़ྗ͢Δ͖͔
• ग़ྗͨ͠ํ͕ະςετͷ͕ؔ͋Δ͜ͱ͕͔Γ͍͢
• ग़ྗ͠ͳ͍ͱ૯߹ΧόϨοδ͕ෆࣗવʹԼ͕Δ
• ૯߹ΧόϨοδʹςετϑΝΠϧͷͳ͍ύοέʔδΛؚΊΔ͖͔
• ؚΊͨํ͕ະςετͷ͕ؔ໌֬ʹͳΔ
ٞ͞Ε͍ͯͨ͜ͱ 1/2
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• go test -coverͱgo test -coverprofileͰΧόϨοδग़ྗΛ౷Ұ͢Δ͖͔
• ౷Ұ͠ͳ͍ͱϢʔβʔʹࠞཚΛট͘Մೳੑ
• ౷Ұ͢Δͱཁ݅ʹΑͬͯෆࣗવͳಈ࡞ʹͳΔՄೳੑ
• ςετϑΝΠϧ͕ͳ͍=ະςετͳͷ͔ɺͦΕͱ୯ʹςετ͕ॻ͔Ε͍ͯͳ͍͚ͩͳͷ͔
• ະςετͱݟͳ͖͔͢
• ίʔυʹԠͯ͡அ͕͔ΕΔՄೳੑ
• [no test files]ͱ0.0%ͷͲͪΒ͕ϢʔβʔʹͱͬͯΘ͔Γ͍͔͢
ٞ͞Ε͍ͯͨ͜ͱ 2/2
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• ςετϑΝΠϧͷ༗ແʹؔΘΒͣʹશύοέʔδ͕ΧόϨοδϨϙʔτʹؚ·ΕΔΑ͏ʹ
• go1.20Ҏ߱Ͱ -coverpkg ϑϥάΛ͚ͭͨͱ͖ͷΈ
• go1.22͔Βࢦఆͳ͠ద༻͞ΕΔΑ͏ʹͳͬͨ
࠷ऴతʹ
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എܠશʹཧղͨ͠
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• ҙਤతʹςετͳ͍ͷΛΧόϨοδೖΕͨ͘ͳ͍
• ࢹ͍ͨ͠ͷ͕࣮͍ࣗͨͪͯ͠Δ෦
• ϏδωεϩδοΫपΓ
• ͦͦෆཁͳͷ·Ͱܭଌରʹ͍ͯ͠Δͷ͕ྑ͘ͳ͍
• ࣗಈੜܥɺҙਤతʹॻ͍ͯͳ͍ͱ͜Ζ
• ҾͰରpkgࢦఆͯ͠ɺೖΕͨ͘ͳ͍ͷআ֎͓ͯ͘͠
• go test -cover ./… → go test -cover pkg1 pkg2
͜ͷมߋΛ౿·͑ͯ
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ΧόϨοδग़ྗํ๏Λݟͦ͏
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ςετϑΝΠϧ͕͋Δͷ͚ͩநग़͢Δ(ϗϫΠτϦετܕ)
• ઐ༻ͷநग़εΫϦϓτ͔ΒߜΓࠐΉ
• *_test.go͕͋ΔσΟϨΫτϦ͕ରͱ͢Εࣗಈ
ੜܥר͖ࠐ·Εͳ͍
• ϝϦοτ
• جຊతʹैདྷ௨ΓͷڍಈʹͰ͖Δ
• σϝϦοτ
• ίʔυશମͷ࣭ΛଌΔ͏͑ͰӅṭ͞ΕΔ
#!/bin/bash
# ݱࡏͷσΟϨΫτϦ͔Βͯ͢ͷGoύοέʔδΛݕࡧ
for pkg in $(go list ./...); do
# ֤ύοέʔδͷσΟϨΫτϦΛऔಘ
pkg_dir=$(go list -f '{{.Dir}}' $pkg)
# *_test.goϑΝΠϧ͕ͦͷσΟϨΫτϦʹଘࡏ͢Δ͔֬ೝ
if [[ $(ls $pkg_dir/*_test.go 2> /dev/null) ]]; then
# ଘࡏ͢Δ߹ύοέʔδ໊Λදࣔ
echo $pkg
fi
done
go test -cover $(./listup_test_pkg.sh)
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• আ֎ରpkgΛҰݩཧͯ͠ɺςετ࣌ʹআ֎͢Δ
• ཧํ๏yamljsonͷ͓͖ͳํͰ
• pkg໊͕ύλʔϯԽͯ͠ΔͳΒهࡌͬͱָ
• ϝϦοτ
• আ֎͍ͨ͠ͷ͕໌ࣔత
• ΧόϨοδܭଌͷҙຯͰݱ࣮త
• σϝϦοτ
• আ֎Օॴͷཏྻ͕໘Ͱखؒ
আ֎͍ͨ͠pkgΛ໊ࢦ͢͠ΔʢϒϥοΫϦετܕʣ
exclude_patterns=$(yq e '.ignore[]' testcnf.yml | sed 's/^/-e /' | tr '\n' ' ')
go test -cover $(go list ./... | grep -vE $(echo $exclude_patterns))
ignore:
- github.com/rymiyamoto/example-api/internal/app/ignore1
- github.com/rymiyamoto/example-api/internal/dashboard/ignore2
- github.com/rymiyamoto/example-api/internal/external/ignore3
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• go1.22͔ΒΦϓγϣϯࢦఆͳ͠Ͱςετͷ༗ແʹؔΘΒͣΧόϨοδ͕ग़ྗ͞ΕΔ
• ΧόϨοδΛͲ͏ѻ͍͔ͬͯ͘ͷҙݟ͕༷ʑͳͷͰɺͲ͏͢Δ͔֤ࣗͷߟ͑ํ࣍ୈ
• ࣗಈੜΛ͖͍ͨͳΒɺςετରՕॴͷΈΛࢦఆ͢Δඞཁ͕͋Δ
·ͱΊ
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• 7/2(Ր)ʹOPTiM͞ΜͱͷڞಉͰgoͷษڧձΛ։࠵͠·͢🎉
• https://optim.connpass.com/event/321331/
• ͜Μͳਓʹ͓͢͢Ί
• Golang ʹڵຯ͕͋ΔΤϯδχΞֶੜͷํ
• GolangͰͷ։ൃʹैࣄ͞Ε͍ͯΔํ
• OPTiM every ͕ͲͷΑ͏ʹGolangΛ׆༻ͨ͠։ൃΛ͍ͯ͠Δͷ͔ڵຯ͕͋Δํ
ΤϒϦʔ͔Βͷ͓Βͤ
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ΤϒϦʔ͔Βͷ͓Βͤ
ҰॹʹαʔϏεΛ࡞ΔؒΛେืूதͰ͢ʂ
🔍 ΤϒϦʔ ࠾༻
https://corp.every.tv/recruits
● Tech Blogͬͯ·͢
● ։ൃ෦ XΞΧϯτ
● ΤϒϦʔެࣜΦϯυϝσΟΞʮevery.thingʯͪ͜Β
https://tech.every.tv/
https://everything.every.tv/
https://x.com/every_engineer
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