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1 test 1 assert ?
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PoohSunny
September 30, 2017
Technology
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1 test 1 assert ?
TDDBC Tokyo 2017-09 でのLTスライドです。
https://tddbc.connpass.com/event/65484/
PoohSunny
September 30, 2017
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Transcript
1 test 1 assert ? 1
ߴڮ ཅଠ(@PoohSunny) { role: "Engineer team leader", lang: ["Java", "Groovy",
"Swift"] } 2
3
ϖΞϓϩσϞ 4
1 test 1 assertion 5
xUTPͱͷग़ձ͍ 6
ޙ3 3 photo: https://www.flickr.com/photos/daverusso88/20860542330/in/photolist- xMnJsW-8H8jnW-8BDdLz-fS9XhN-e3qtWG-oaibHC-eRMCCx-q9Ftni-n7Lmvm-supyFV-gXyxGZ- fEKqSK-sqqxce-sfR8k1-q7N9Ta-dDw4Zq-9ML2MP-oa6sWm-J5F4zN-4vX6LP-nW3r1Q- rF4QJJ-8BWJj9-A1MjG7-sqqpKR-HgcdWN-7Dy6QC-s7M3Dn-w2RjN3-TZXibu-mMD2tR-o9TZi6- shS8mE-hWRzr-WJPkXw-xe6Rnv-DWz4Ra-yGju6j-fkfg3o-ghz6JD-wR4HYP-7xhvzK-rN2UEW- krfJu3-Duju1z-FSwQ8h-8yNSK2-4vXc2a-DaLuo5-zZyYuS 7
xUTPͱͷग़ձ͍(ཧ)4 4 ಈը: https://engineers.sg/video/unit-test-craftsmanship-agile-singapore- conference-2016--1168 εϥΠυ: http://singapore2016.xunitpatterns.com/ 8
γϯάϧΞαʔγϣϯ9 • ࿑ಇ࣌ؒܭࢉͷςετ // then assertEquals(720, result.getWorkTime()); • ٳܜ࣌ؒܭࢉͷςετ //
then List<Integer> breakTimeList = result.getBreakTimeList(); assertEquals(2, breakTimeList.size()); assertEquals(60, breakTimeList[0]); assertEquals(45, breakTimeList[1]); 9 http://xunitpatterns.com/Principles%20of%20Test%20Automation.html#Single Condition Test 9
1 test 1 assertϗ ϯτʁ 10
·ͱΊ͓͍ͯͨํ͕ Θ͔Γͦ͢͏ // then List<Integer> breakTimeList = result.getBreakTimeList(); assertEquals(2, breakTimeList.size());
assertEquals(60, breakTimeList[0]); assertEquals(45, breakTimeList[1]); 11
ಡΈ͍͢ܗʹ ϦϑΝΫλϦϯά • ྫ͑JUnit5 + AssertJΛར༻ // then List<Integer> breakTimeList
= result.getBreakTimeList(); assertThat(breakTimeList).hasSize(2).containsExactly(60, 45); 12
ΧελϜΞαʔγϣϯ10 • ϔϧύʔΛ࡞͠ɺΞαʔγϣϯͷ࣮ॲཧͦ ͪΒʹҠಈ 10 http://xunitpatterns.com/Custom%20Assertion.html 13
ϝιουຊޠԽख // then List<Integer> breakTimeList = result.getBreakTimeList(); ٳܜ2ճܭࢉ͞Εͯ(breakTimeList, _1ͭͷܭࢉ࣌ؒ(60), _2ͭͷܭࢉ࣌ؒ(45));
14
ϝϯςφϯεੑ͕٘ਜ਼ʹͳ Δʁ • ςετͷڞ௨ԽͬͯͲΕ΄Ͳॏཁʁ • ͜ΕʹΑͬͯͲͷ͘Β͍ಡΈ͕͢͞૿͢ʁ 15
ಡΈ͘͢ͳΒͳ͍Α͏ͳΒ ͠ಡΈ͘͢ͳΒͳ͍ͳΒɺγϯάϧΞαʔγ ϣϯਥʹͳΔͭΓͳ͍Α — Principle: Verify One Condition per Test
11 11 http://xunitpatterns.com/Principles%20of%20Test%20Automation.html#Single Condition Test ΑΓҙ༁ 16
Single Assertion ૉΒ͍͠ 17
Ͱόϥϯε͋Δ Αʂ 18
͓͠·͍ 19