phpspecで学ぶLondon School TDD

Transcript

1. phpspec London School TDD 2015 HOKKAIDO 2015.6.13
2. Sapporo.php 7/17( ) 19:00 21:00 http://sapporophp.connpass.com/ https://github.com/sapporophp/sapporophp github
3. http://iakio.hatenablog.com/ https://twitter.com/iakio http://qiita.com/iakio http://www.slideshare.net/iakio
5. Motivation PHP TDD phpspec London School TDD PHP London PHP
6. London school TDD XP TDD Growing Object-Oriented Software Guided By Tests(2009) The GOOS Book (2012) phpspec London school TDD (Full Stack Radio #15) ◦ GUI ◦
7. The GOOS Book → phpspec → phpspec → The GOOS Book The GOOS Book → 💡 phpspec London School TDD phpspec London School TDD
9. B A C D B class A { function __construct(B $b) { } } class B { function __construct(C $c, D $d) { } } class C { } class D { }
10. Outside-In/Inside-Out class A { function __construct(B $b) { } } class B { function __construct(C $c, D $d) { } } class C { } class D { } Outside-In ◦ B Mock, Stub A ◦ A B Inside-Out ◦ C,D B ◦ ◦ ◦ B A A B
11. Mock Mock Mock Mock
12. phpspec PHPUnit RSpec phpspec ver1 2011 RSpec 2013 0 2014 ver2.0.0 2.2.1 2013 phpspec
13. Spec, Example class MarkdownSpec extends ObjectBehavior { } function it_is_initializable() { $this->shouldHaveType('Markdown'); } function its_xxxxxx() { .... } Spec
14. Example=
16. { "require-dev": { "phpspec/phpspec": "~2.2" }, "autoload": { "psr-4": { "": "src/" } } } src/ spec/ .phpspec.yml PSR-0 composer.json
17. Getting Started Markdown HTML Markdown Spec  "Hi, there" "<p>Hi, there</p>" 
18. C:¥Users¥ishida¥src¥phpspec>vendor¥bin¥phpspec desc Markdown Specification for Markdown created in C:¥Users¥ishida¥src¥phpspec¥spec¥MarkdownSpec.php. Markdown Spec phpspec
19. <?php namespace spec; use PhpSpec¥ObjectBehavior; use Prophecy¥Argument; class MarkdownSpec extends ObjectBehavior { function it_is_initializable() { $this->shouldHaveType('Markdown'); } } spec/MarkdownSpec.php Markdown Spec MarkdownSpec example it_ its_
20. C:¥Users¥ishida¥src¥phpspec>vendor¥bin¥phpspec run Markdown 10 - it is initializable class Markdown does not exist. / skipped: 0% / pending: 0% / passed: 0% / failed: 0% / broken: 100% / 1 examples 1 specs 1 example (1 broken) 24ms Do you want me to create `Markdown` for you? [Y/n] Class Markdown created in C:¥Users¥ishida¥src¥phpspec¥src¥Markdown.php. / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% / 1 examples 1 specs 1 example (1 passed) 50ms Markdown
21. <?php class Markdown { } src/Markdown.php Markdow
22. ... class MarkdownSpec extends ObjectBehavior { function it_converts_plain_text_to_paragraph() { // $this->toHtml("Hi, there")が // "<p>Hi, there</p>" を返却すること } } spec/MarkdownSpec.php
23. ... class MarkdownSpec extends ObjectBehavior { function it_converts_plain_text_to_paragraph() { $this->toHtml("Hi, there") ->shouldReturn("<p>Hi, there</p>"); } } spec/MarkdownSpec.php shouldBe, shouldBeEqualTo, shouldEqualTo
24. C:¥Users¥ishida¥src¥phpspec>vendor¥bin¥phpspec run / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% Markdown 15 - it converts plain text to paragraph method Markdown::toHtml not found. / skipped: 0% / pending: 0% / passed: 50% / failed: 0% / broken: 50% / 2 examples 1 specs 2 examples (1 passed, 1 broken) 32ms Do you want me to create `Markdown::toHtml()` for you? [Y/n] Method Markdown::toHtml() has been created. / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% Markdown 15 - it converts plain text to paragraph expected "<p>Hi, there</p>", but got null. / skipped: 0% / pending: 0% / passed: 50% / failed: 50% / broken: 0% / 2 examples 1 specs 2 examples (1 passed, 1 failed) 38ms toHtml()
25. C:¥Users¥ishida¥src¥phpspec>vendor¥bin¥phpspec run --fake / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% Markdown 15 - it converts plain text to paragraph expected "<p>Hi, there</p>", but got null. / skipped: 0% / pending: 0% / passed: 50% / failed: 50% / broken: 0% / 2 examples 1 specs 2 examples (1 passed, 1 failed) 67ms Do you want me to make `Markdown::toHtml()` always return '<p>Hi, there</p>' for you? [Y/n] Method Markdown::toHtml() has been modified. / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% / 2 examples 1 specs 2 examples (2 passed) 27ms toHtml() "<p>Hi, there</p>"
26. <?php class Markdown { public function toHtml($argument1) { return '<p>Hi, there</p>'; } } src/Markdown.php
27. Point Markdown Spec MarkdownSpec  example 'it_' 'its_' expectation $this MarkdownSpec $this Markdown  1 Spec 1 phpspec desc Spec phpspec run --fake
28. Markdown HTML Markdown::toHtmlFomReader(Reader $reader) $reader->getMarkdown() Markdown Html Reader
29. class MarkdownSpec extends ObjectBehavior { ... function it_convers_text_from_an_external_source() { // $reader->getMarkdown()が"Hi, there"を返すとする $this->toHtmlFromReader($reader) ->shouldReturn("<p>Hi, there</p>"); } spec/MarkdownSpec.php
30. class MarkdownSpec extends ObjectBehavior { ... function it_convers_text_from_an_external_source() { $reader->getMarkdown()->willReturn("Hi, there"); $this->toHtmlFromReader($reader) ->shouldReturn("<p>Hi, there</p>"); } spec/MarkdownSpec.php
31. use Reader; class MarkdownSpec extends ObjectBehavior { ... function it_convers_text_from_an_external_source(Reader $reader) { $reader->getMarkdown()->willReturn("Hi, there"); $this->toHtmlFromReader($reader) ->shouldReturn("<p>Hi, there</p>"); } spec/MarkdownSpec.php example PhpSpec $reader
32. C:¥Users¥ishida¥src¥phpspec>vendor¥bin¥phpspec run --fake ... Would you like me to generate an interface `Reader` for you? [Y/n] ... Would you like me to generate a method signature `Reader::getMarkdown()` for you? [Y/n] ... Do you want me to create `Markdown::toHtmlFromReader()` for you? [Y/n] ... Do you want me to make `Markdown::toHtmlFromReader()` always return '<p>Hi, there</p>' for you? [Y/n] Method Markdown::toHtmlFromReader() has been modified. / skipped: 0% / pending: 0% / passed: 100% / failed: 0% / broken: 0% / 3 examples 1 specs 3 examples (3 passed) 43ms Reader::getMarkdown() Makkdown::toHtmlFromReader()
33. HTML Makdown::outputHtml($text, Writer $writer); HTML Writer::writeText($text) Writer
34. use Writer; class MarkdownSpec extends ObjectBehavior { ... function it_outputs_converted_text(Writer $writer) { // $writer->writeText("<p>Hi, there</p>") // が呼び出されること $this->outputHtml("Hi, there", $writer); } spec/MarkdownSpec.php
35. use Writer; class MarkdownSpec extends ObjectBehavior { ... function it_outputs_converted_text(Writer $writer) { $writer->writeText("<p>Hi, there</p>") ->shouldBeCalled(); $this->outputHtml("Hi, there", $writer); } spec/MarkdownSpec.php
36. class MarkdownTest extends ¥PHPUnit_Framework_TestCase { function test_output_converted_text() { $writer = $this->getMockBuilder('Writer') ->setMethods(['writeText']) ->getMock(); $writer->expects($this->once()) ->method('writeText') ->with($this->equalTo("<p>Hi, there</p>")); $markdown = new Markdown(); $markdown->outputHtml("Hi, there", $writer); } PHPUnit4.5 Prophecy phpspec Mock PHPUnit
37. Writer $markdown = new Markdown(); $markdown->outputHtml($text, $writer); $markdown = new Markdown($writer); $markdown->outputHtml($text);
38. use Writer; class MarkdownSpec extends ObjectBehavior { ... function it_outputs_converted_text(Writer $writer) { $writer->writeText("<p>Hi, there</p>") ->shouldBeCalled(); $this->outputHtml("Hi, there", $writer); } spec/MarkdownSpec.php $writer outputHtml
39. use Writer; class MarkdownSpec extends ObjectBehavior { ... function let(Writer $writer) { $this->beConstructedWith($writer); } function it_outputs_converted_text($writer) { $writer->writeText("<p>Hi, there</p>") ->shouldBeCalled(); $this->outputHtml("Hi, there"); } spec/MarkdownSpec.php let example let example $writer
40. Point $reader->getMarkdown() ->willReturn("Hi, There") $writer->writeText("<p>Hi, there</p>") ->shouldBeCalled() $this->beConstructedWith($writer)
41. Markdown Spec Markdown Reader Writer
42. interface? class FileStorage implements Reader, Writer { ... } class Markdown { function toHtmlFromReader(Reader $reader) {...} function toHtmlFromReader(FileStorage $reader) {...} }
43. ((EditSaveCustomer) master.getModelisable() .getDockablePanel() .getCustomizer()) .getSaveItem().setEnabled(Boolean.FALSE.booleanValue()); master.allowSaveingOfCustomisations(); Spec The GOOS Book
44. → → Web
45. Hexagonal-Architecture phpspec PHPUnit Behat Codeception
46.  Unit Test Acceptance Test  phpspec PHPUnit
47. London school TDD  phpspec  phpspec London school TDD phpspec The GOOS Book
48. http://d.hatena.ne.jp/digitalsoul/20110927/1317079751 http://d.hatena.ne.jp/digitalsoul/20120920/1348104079 http://d.hatena.ne.jp/devbankh/201002 (GOOS) http://qiita.com/kenjihiranabe/items/b951b6d98672167347fd http://iakio.hatenablog.com/archive/category/phpspec http://qiita.com/tags/phpspec
49. phpspec2: SUS and collaborators(2012) (http://everzet.com/post/33178339051/sus-collaborators) phpspec2 alpha Konstantin Kudryashov - Design How Your Objects Talk Through Mocking at Laracon EU 2014 (https://www.youtube.com/watch?v=X6y-OyMPqfw) Laracon EU phpspec Does TDD really lead to good design? (http://codurance.com/2015/05/12/does-tdd-lead-to-good-design/) Detroit school London School Laracast (https://laracasts.com/index/phpspec) Laravel PHP