Let tested using a mock with PHPUnit

PHPUnitなんて当たり前に知ってるし、ユニットテストだってちょっとは書いたことある。
でも実務では面倒くさくて結局書けない。そんなあなたのためにモックの具体的な使い方を紹介した資料です。

Transcript

1. ࠶ֶश PHPUnitͰϞοΫΛ ࢖ͬͯςετ͠Α͏ 2015-03-30 ୈ88ճ PHPษڧձ ࠇҪय़ਓ
2. ςετॻ͍ͯ·͔͢ʁ
3. Ғ͍ਓ͸͜͏͍͏Θ͚Ͱ͕͢
4. ࣮ࡍ໘౗͍͘͞
5. ςετͷॏཁੑ͸Θ͔͍ͬͯ Δ͠ɺϢχοτςετͱ͔ॻ ͍ͯ͋ΔͱͳΜ͔ΧοίΠΠ
8. ςετΛॻ͘ͱCIͰ͖Δ
9. ΍Βͳ͍ΑΓ΍ͬͨ΄͏͕ ઈରྑ͍
10. Ͱ΋໘౗͍͘͞
11. ͳ͔ͥʁ
12. ͱ͍͏͜ͱΛࠓ೔͸ߟ͑ͯΈ ·͠ΐ͏ɻ
13. جຊͷ͓͞Β͍
14. PHPUnitΛ࢖͓͏
15. PHPUnitΛ࢖͓͏ • ݱࡏ΋ͬͱ΋ϙϐϡϥʔͳPHPʹ͓͚ΔϢχοτ ςετϥΠϒϥϦ • Θ͕͠ए͍ࠒ͸ simpletest ͱ͔ lime ͱ͔ܹ͋ͬͯ ͍͠ઓ͍Λ܁Γ޿͓͛ͯͬͯͷ͎ΰϗΰϗ… • ࠓ͸ͱʹ͔͘ίϨΛ֮͑Ε͹OK(͔ͨͩ͠ͳΓԞ ͕ਂ͍)
16. Install࣮͸௒؆୯ • wget https://phar.phpunit.de/phpunit.phar • chmod 775 phpunit.phar • mv phpunit.phar $HOME/bin/phpunit http://project-p.jp/halt/?p=1882
17. ςετͷͻͳܗΛ༻ҙ࣮ͯ͠ߦ class Member { }
 class MemberTest extends PHPUnit_Framework_TestCase
 {
 public function test_createInstance()
 {
 $member = new Member();
 $this->assertTrue($member instanceof Member);
 }
 
 }
18. php-timeͷ৔߹ https://github.com/ttsuruoka/php-time
19. /** * ݱࡏ͕࣌ؒ༩͑ΒΕͨ࣌ؒΑΓલ͔Ͳ͏͔ * * Ҿ਺ͱͯ͠null ͕༩͑ΒΕͨͱ͖͸ɺfalse Λฦ͠·͢ɻ * @param $a unixtimeΛද͢੔਺ɺ·ͨ͸೔෇ͱͯ͠ղऍՄ ೳͳจࣈྻ * @return boolean ݱࡏ͕࣌ؒ༩͑ΒΕͨ࣌ؒΑΓલͷͱ͖ trueɺͦΕҎ֎ͷͱ͖ false */ public static function before($a) { if (is_null($a)) { return false; } $a = is_int($a) ? $a : strtotime($a, self::$time); return self::$time < $a; }
20. public function test_before() { Time::set(strtotime('2011-11-01 15:00:00')); $this->assertEquals(Time::before(null), false); $this->assertEquals('2011-11-01 15:00:00', Time::now()); $this->assertTrue(Time::before('2011-11-01 16:00:00')); $this->assertTrue(Time::before('2011-11-01 15:00:01')); $this->assertFalse(Time::before('2011-11-01 15:00:00')); $this->assertFalse(Time::before('2011-11-01 14:59:59')); }
21. ؆୯ʂ ΈΜͳ΋΍Ζ͏ʂ
22. ͓͠·͍
23. phpunit.phar ࢖ͬͨΓ assert ϝιου࢖ͬͯ ݕূͨ͠Γɺ phpunit.xml Ͱςετέʔεࢦ ఆͨ͠Γɺ MVC Ͱ͍ͬͨΒ Model ͚ͩ΍Δ ͱ͍ͩͿҧ͏ͱ͔ fixture ॻ͘ͱ͔ xdebug ೖΕΔͱΧόϨοδͱΕΔͱ͔ͱ͔ͱ͔… " શ෦஌ͬͯΔʂ ͚Ͳॻ͔ͳ͍ΜͰ͢ʂ
24. ͳ͔ͥʁ
25. ݱ࣮ͷ࣮૷΋ͬͱ໘౗͍͘͞ • AͷதͰBΛࢀরͯ͠B͕CΛࢀর͍ͯ͠Δ • ֎෦ͱͷ௨৴Λߦͳ͏ • Ϣʔβʔ໊΍ύεϫʔυ͕ඞཁ • ؔ࿈σʔλ͕ͳ͍ͱಈ͔ͳ͍ • ݶఆ͞Εͨ؀ڥ͡Όͳ͍ͱಈ͔ͳ͍ • ͳͲͳͲ…
26. ࣮ࡍ͸΋ͬͱ໘౗͍͘͞ Internet DB Library Local
27. ϞοΫΛ࢖͏ͱ͍͍ײ͡ʹς ετʹઐ೦Ͱ͖Δ
28. ϞοΫͱ͸ • ϞοΫ = ໦ܕ = ֎ݟͷݕ౼ͳͲͷͨΊʹ࡞Β ΕΔݪܕ • ࣮ࡍͷΦϒδΣΫτΛஔ͖׵͑ͯɺςετ༻ ʹઃఆͨ͠஋Λฦ͢ͱ͖ʹ࢖͏
29. ͢΂ͯΛίϯτϩʔϧԼʹ͓͘ Mock Library Local
30. ԿΛݴ͍ͬͯΔͷ͔?
31. 0͔Βॻ͚ͱݴΘΕΔͱ ໘౗͚ͩͲ ࣄྫ͕͋Ε͹ίϐϖͰઓ͑Δ
32. InternetΞΫηε Λ ϞοΫͰ୅༻͢Δ
33. Services_Photozouͷ৔߹ https://github.com/ha1t/php-Services_Photozou
34. public function nop() { $xml = $this->callMethod("nop"); if (strpos($xml, 'stat="ok"') !== false) { return true; } else { return false; } } $this->callMethodͰAPI௨৴͕͸͠ΔͷͰ ωοτϫʔΫ͕ͭͳ͕ͬͯͳ͍ͱಈ͔ͳ͍
35. public function testNop() { $response = <<<EOD <?xml version="1.0" encoding="UTF-8" ?> <rsp stat="ok"> <info><user_id>1111</user_id></info> </rsp> EOD; $photozou = new Services_Photozou($this- >user, $this->password); $this->injectMock($photozou, $response); $this->assertTrue($photozou->nop()); }
36. public function injectMock(Services_Photozou $photozou, $response) { $mock = new \GuzzleHttp\Subscriber \Mock($response); $class = new ReflectionClass(‘Services_Photozou'); $property = $class->getProperty(‘client'); $property->setAccessible(true); $client = $property->getValue($photozou); $client->getEmitter()->attach($mock); } ͬ͘͟Γ͜Μͳײ͡ͰͰ͖Δ
37. Guzzle->getEmitter()- >attach() • ϞμϯͳPHPͰͷఆ൪ʹͳ͖ͬͯͨ௨৴ϥΠ ϒϥϦ Guzzle ʹ͸ɺϞοΫΛ attach Ͱ͖Δ ػೳ͕͋Γɺ͜ΕΛར༻͢ΔࣄͰɺ Guzzleɹ Λར༻ͯ͠ωοτϫʔΫΞΫηεΛߦ͍ͬͯ Δίʔυ͸ɺ؆୯ʹςετΛॻ͘ࣄ͕Ͱ͖Δ Α͏ʹͳΔɻ
38. DBΞΫηε Λ ϞοΫͰ୅༻͢Δ
39. SimpleDBIͷ৔߹ https://github.com/ttsuruoka/php-simple-dbi
40. public static function get($member_id) { $con = SimpleDBI::conn(); $sql = "SELECT * FROM member WHERE id = ?"; $row = $con->row($sql, array($member_id)); if ($row === false) { throw new AppException(); } return new self($row); }
41. public function testGet() { $row = ['id' => 1,'name' => 'john']; " $mock = $this->getMock('DB', ['row'], [], '', false); $mock->expects($this->any()) ->method('row') ->will($this->returnValue($row)); " $class = new ReflectionClass(‘DB'); $property = $class->getProperty(‘instances'); $property->setAccessible(true); $property->setValue([null => $mock]); " $member = Member::getObject(1); $this->assertTrue($member instanceof Member); }
42. SimpleDBI::instance • SimpleDBI͸γϯάϧτϯΫϥεͳͷͰɺࣗ෼ࣗ਎ Λϝϯόʹ͍࣋ͬͯΔ • ͜ͷϝϯόΛϞοΫʹࠩ͠ସ͑ͯ͠·͏ࣄͰɺ೚ҙ ͷڍಈΛ࣮ݱ͢Δ • DBͷ৔߹ fixture ࢖͏ͷ΋͋Γ͚ͩͲίετͰ͔͍ ͷͰ಺෦ͷϩδοΫ͚ͩΛݕূ͍ͨ͠ͳΒϞοΫ࢖ ͏
43. ·ͱΊ • IneternetΞΫηε΍DBΞΫηε͸ϞοΫ࢖͏ ͱ؆୯ʹ୅༻Ͱ͖ͯςετ͕ॻ͖΍͘͢ͳΔ Α • ͍ͬͯ͏͔ͳΜͰ΋ஔ͖׵͑Ͱ͖Δ͔Βຊ࣭ తͳ෦෼Ҏ֎͸ΨϯΨϯஔ͖׵͍͍͑ͯͱࢥ ͏Α
44. ͋ͳ͕ͨॻ͍ͯΔ ͋ͷίʔυͰ΋ ͪΐͬͱςετॻ͚ͦ͏ͳ ؾ͕͖ͯ͠·ͤΜ͔ʁ
45. େࣄͳࣄ͸ manual ʹ શ෦ॻ͍ͯ͋Δ " https://phpunit.de/manual/current/ja/test- doubles.html#test-doubles.mock-objects
46. ࣭ٙԠ౴(͋Ε͹)