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hideki kinjyo
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March 31, 2019
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Datetime tests with cakephp/chronos
#phperkaigi 2019でのLT内容です。
cakephp/chronosを利用して強いテスタビリティを手に入れる話
hideki kinjyo
PRO
March 31, 2019
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Transcript
࣌Λࢧ͢ΔPHP #phperkaigi 2019.03.31 Hideki Kinjyo twitter: @o0h_ / github: o0h
ಥͰ͕͢
Έͳ͞Μࢥ͍·ͤΜ͔
͋ʙɺ͕࣌ؒͱ·Ε͍͍ͷʹɻ
Ͱ͢ΑͶʁ
ͦΕɺPHPͰͰ͖ΔΑʂ
ຊͷ͝հ
cakephp/chronos
ࣗݾհ • ίωώτגࣜձࣾ • αʔόʔαΠυΤϯδχΞ • ओʹCakePHPͳͲ • ࠷ۙɺ{ॳ}ॻ੶Λࣥච͠·ͨ͠ ͡Ί·ͯ͠ʂ
TL;DR • cakephp/chronos A standalone DateTime library originally based off
of Carbon • Date(calendar) / DateTimeͷศརͳॲཧΛఏڙ ͢Δ • ࣌ॲཧΛҕৡ͢Δ͜ͱͰɺ γεςϜ࣌ʹґଘ͠ͳ͍ʮݱࡏ࣌ʯΛॲཧ͕ Մೳʹ
Α͋͘Γͦ͏ͳ
དྷ݄ɺզ͕ࣾ ͕ECαΠτʮଠ ܅ͷ͓หശʯ Λ࢝Ίͯɺ7प ͩɻ ײँͷؾ࣋ͪΛ ͜Ίͨɺεϖγϟ ϧηʔϧΛΖ ͏Α ࣾͷਓ
͕ࣾɺϫλ γʹͱͬͯ ΤϞ͍ࣄΛ ͤͯ͘Εͨ ͧɻ͜Εઈ ରʹࣦഊͰ͖ ͳ͍ɺ͕Μ Δ͔͠ͳ͍ʂ ৽ೖࣾһϫλγ
͋ʙΒΑͬʂͱɻ $template = 'itsumono_hanbai_page'; if (time() >= strtotime(START_SALE_DATETIME_STR)) { $template
= 'special_taro_sale'; } render($template);
͜ΕͰɺ ʹͳͬͨΒϖʔ δ͕ΓସΘ Δɻྑ͔ͬͨɺ ྑ͍ײ͡ʹ ࣄ͕Ͱ͖ͨͧɻ ৽ೖࣾһϫλγ
͊ɺ͕Μͬ ͨͶʂ͏Ұ ਓલ͍͔ۙ ͳʁ(স)͜Εͳ ΒɺΈΜ ͳେتͼʹҧ ͍ͳ͍ɻ͠ ͘ͳΔͧʙʙʂ པΕΔઌഐ
ͱ͜ΖͰ͞ʂ ͜Εͬͯɺ ͏CI௨ͨ͠ ͔ͳʁͲ͏ͩͬ ͨʁ པΕΔઌഐ
͋ɺઌഐʂς ετͬͯ͜ͱ Ͱ͔͢ʁϩʔ ΧϧͰɺγ εςϜλΠϜ Λมߋͯ͠ಈ ࡞֬ೝ͠· ͨ͠ɻ ৽ೖࣾһϫλγ
ͰɺΉΉΉɺ ͔֬ʹςετ ίʔυɾɾɾ runkitͱ͔ೖ ΕͪΌ͍ͬͯ ͍Ͱ͔͢Ͷʁ ৽ೖࣾһϫλγ
͏Μ͏Μɺͦ ͏ͩΑͶɻͦ Μͳ࣌ʹɺͱͬ ͯศརͳ Μͷ͕͋ΔΜ ͩɻ པΕΔઌഐ
cakephp/chronos͞ʂ
৭ʑͱػೳ͕ ͋ΔΑ པΕΔઌഐ
ԼͷΒͷ ؔ৺ͱͯ͠ɺ ʮtesting aidʯػೳ͕ ʹཱͪͦ͏ͩ ͔Βɺհ͢ ΔͶɻ པΕΔઌഐ
setTestNow()
before $template = 'itsumono_hanbai_page'; if (time() >= strtotime(START_SALE_DATETIME_STR)) { $template
= 'special_taro_sale'; } render($template);
·ͣɺʮݱࡏʯʹ͍ͭͯ ͯ͢Chronosܦ༝ͰऔΓग़͢Α͏ʹॻ͖͑ΔΑ use Cake\Chronos\Chronos; $template = 'itsumono_hanbai_page'; if (Chronos::now() >=
strtotime(START_SALE_DATETIME_STR)) { $template = 'special_taro_sale'; } render($template);
͍ͭͰʹɺ ૬खํॻ͖͑ͯ͠·͓͏ use Cake\Chronos\Chronos; $template = 'itsumono_hanbai_page'; if (Chronos::now() >=
new Chronos(START_SALE_DATETIME_STR) ) { $template = 'special_taro_sale'; } render($template);
ൺֱϝιουΛ͏ͱ ܕνΣοΫͰ͖ΔͷͰɺ͓ΈͰɻ use Cake\Chronos\Chronos; $template = 'itsumono_hanbai_page'; if (Chronos::now()->gte(new Chronos(START_SALE_DATETIME_STR))
) { $template = 'special_taro_sale'; } render($template);
ϓϩμΫτίʔ υͷ४උͰ ͖ͨɻͯ͞ɺ ͜ΕͰςετ ͕ॻ͚ΔΜͩ Αʂ པΕΔઌഐ
testίʔυΛॻ͍ͯΈΔ /** * @test */ public function セール開始前() { Chronos::setTestNow('2019-03-10');
$targetPageUrl = '/'; $actual = get($targetPageUrl); $this->assertTitleIs( '太郎君のお弁当箱', $actual ); }
testίʔυΛॻ͍ͯΈΔ /** * @test */ public function セール開始前() { Chronos::setTestNow('2019-03-10');
$targetPageUrl = '/'; $actual = get($targetPageUrl); $this->assertTitleIs( '太郎君のお弁当箱', $actual ); } ͜͜ʹೖΕ͕ͨ A$ISPOPTOPX AʹͳΔ
testίʔυΛॻ͍ͯΈΔ /** * @test */ public function セール期間中() { Chronos::setTestNow('2019-04-01');
$targetPageUrl = '/'; $actual = get($targetPageUrl); $this->assertTitleIs( '太郎君のお弁当箱〜7周年ありがとう!〜', $actual ); } ֘ظؒʹ͓͍ͯ ϖʔδίϯςϯπ͕ ࠩ͠ସΘΔ͜ͱΛظ͢Δ
testίʔυΛॻ͍ͯΈΔ /** * @test */ public function セール終了後() { Chronos::setTestNow('2019-05-01
06:59:59’); $targetPageUrl = '/'; $actual = get($targetPageUrl); $this->assertTitleIs( ‘太郎君のお弁当箱', $actual ); } ࣌ࠁϨϕϧ·ͰݻఆՄೳ
͓ͬͱɺऴྃ ࣌ͷઃఆΛͯ͠ ͳ͔͔ͬͨͶʂ ͪΖΜɺ͙͢ ʹඞཁͳ͍͚ Ͳɺࠓͷ͏ͪʹ ͓͍ͬͯͪΌ ͑҆৺ͩͶʂ པΕΔઌഐ
Θɺ͋Ϳͳ͍ʂ ઌഐ͋Γ͕ͱ ͏͍͟͝·͢ʂ ͬͺΓɺς ετ͕(͔͠ ؆୯ʹ)ॻ͚Δ ͱ҆৺ײ͕͋ Δͳʙ ৽ೖࣾһϫλγ
ͪͳΈʹɺ `setTestNow(null )` ͯ͋͛͠Εɺ ϑΣΠΫ࣌Ͱ ͳ͘ݱ࣮ͷ͕࣌ ฦͬͯ͘ΔͷͰ҆ ৺͞ɻςετͰ ͏࣌ͱ͔ɺ tearDown()ʹڬΜ
Ͱ͓͖͍ͨͶɻ པΕΔઌഐ
ଞʹศརͳ͜ͱ (࣌ؒ͋ΕͶ!)
৭ʑͱϔϧύʔͳͲ • DateTimeInterfaceDateTimeImmutableͷػೳͦͷ··͑Δͷ ͰɺҠߦͦΜͳʹ͠ΜͲ͘ͳ͍ͣ • add/sub/diffͳͲͳͲ • ࣌ૢ࡞ʹɺʮࣗવจͬΆ͍දݱͰಡΈ͍͢ʯAPI͕૿͑Δҹ • ge/gte/lt/lte/between/wasWithinLastͳͲͷൺֱػೳ
• addDays(int $value) / subMonths(int $value)ͳͲͷߋ৽ػೳ • Chronos::yesterday() / Chronos::instance(DatetimeInterface $dt) ͳͲͷϑΝΫτϦ
ΞάϨογϒͳ͍ํ <?php use Cake\Chronos\Chronos; if (!function_exists('now')) { function now() {
return Chronos::now(); } } // usage if (now()->isSunday()) { goto doNidone(); }
(ͪͳΈʹ)cakephpͷ߹ • I18nܥύοέʔδͰܧঝͨ͠ɺTime/FrozenTime ͕ར༻͞Ε͍ͯΔ • timezonelocaleͷใΛ͍࣋ͬͯΔ • https://github.com/cakephp/i18n/blob/master/ FrozenTime.php •
ORMܦ༝ͰRDBMS͔ΒऔΓग़ͨ͠datetimeྻͷ ɺࣗಈతʹίΠπʹϚʔγϟϧ͞ΕΔ
·ͱΊ
·ͱΊ(1/2) • ςετ = ҆৺ײ • ςελϒϧ = ઃܭͷɺςεςΟϯάϑϨʔ ϜϫʔΫ(etc)ଆͷදݱྗͷ
• ࣌Λࢧ͢Δͱͱͬͯศར ಛʹςετɺ͜ΕͰTDDΓ͍ͧ͢ʂ
·ͱΊ(2/2) • cakephpνʔϜͷϝϯς͚ͩͲɺελϯυΞ ϩϯͰ͑ΔͷͰɺͲ͜ʹͰ࿈Ε͍͚ͯΔʂ • ʮਂ0࣌ʙਂ2࣌ͷؒ௨Βͳ͍ʯ͔Βͷ ଔۀɾɾɾʂ
͓͖߹͍͍ ͖ͨͩ ͋Γ͕ͱ͏͝ ͍͟·ͨ͠ʂ