{"id":290180,"date":"2018-10-02T00:50:03","date_gmt":"2018-10-01T20:50:03","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=290180"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=290180","title":{"rendered":"\u0422\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c PromiseKit"},"content":{"rendered":"\n<div class=\"post__text post__text-html js-mediator-article\">\n<p>\u041f\u0430\u0442\u0442\u0435\u0440\u043d MVP \u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u2014 \u044d\u0442\u043e \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0430\u0437\u0433\u0440\u0443\u0437\u0438\u0442\u044c ViewController \u0438 \u0432\u044b\u043d\u0435\u0441\u0442\u0438 \u0447\u0430\u0441\u0442\u044c \u043b\u043e\u0433\u0438\u043a\u0438 \u0432 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440. \u041f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442 \u043e\u0431\u0440\u0430\u0441\u0442\u0430\u0442\u044c \u043b\u043e\u0433\u0438\u043a\u043e\u0439, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043b\u0435\u0433\u043a\u043e \u043f\u043e\u0434\u0434\u0430\u0435\u0442\u0441\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e.<\/p>\n<p>  <\/p>\n<p>\u041f\u0443\u0441\u0442\u044c \u0435\u0441\u0442\u044c \u044d\u043a\u0440\u0430\u043d <code>MelodyListViewController<\/code> \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0449\u0438\u0439 \u0441\u043f\u0438\u0441\u043e\u043a \u043c\u0435\u043b\u043e\u0434\u0438\u0439. \u0423 \u043d\u0435\u0433\u043e \u0435\u0441\u0442\u044c \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 <code>MelodyListPresenter<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0433\u043e\u0432\u043e\u0440\u0438\u0442 ViewController \u0447\u0442\u043e \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c. \u0414\u0430\u043d\u043d\u044b\u0435 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 \u0431\u0443\u0434\u0435\u0442 \u0431\u0440\u0430\u0442\u044c \u0438\u0437 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 <code>MelodyService<\/code>. <code>MelodyService<\/code> \u044d\u0442\u043e \u043e\u0431\u0435\u0440\u0442\u043a\u0430 \u043d\u0430\u0434 \u0431\u0430\u0437\u043e\u0439 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 api \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u043c, \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u044e\u0449\u0430\u044f \u043c\u0435\u043b\u043e\u0434\u0438\u0438. \u0415\u0441\u043b\u0438 \u0441\u0435\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430, \u0441\u0435\u0440\u0432\u0438\u0441 \u0431\u0435\u0440\u0435\u0442 \u0434\u0430\u043d\u043d\u044b\u0435 \u0441 api, \u0438\u043d\u0430\u0447\u0435 \u0441 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445. \u0422\u0438\u043f\u044b \u043e\u0448\u0438\u0431\u043e\u043a \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u0432 enum <code>ServiceRequestError<\/code>.<a name=\"habracut\"><\/a><\/p>\n<p>  <\/p>\n<pre><code>protocol MelodyListViewController: class {     func showMelodies(melodies: [Melody])     func showLoadError(error: ServiceRequestError) }  protocol MelodyListPresenter {     var view: MelodyListViewController? { get }     var melodyService: MelodyService { get }      func fetchMelodies() -&gt; Promise&lt;Void&gt; }  extension MelodyListPresenter {     func fetchMelodies() -&gt; Promise&lt;Void&gt; {         return melodyService.getMelodies().done { melodies in             self.view?.showMelodies(melodies: melodies)         }.catch { error in             self.view?.showLoadError(error: error)         }     } }  protocol MelodyService {     func getMelodies() -&gt; Promise&lt;[Melody]&gt; }  public enum ServiceRequestError: Error {     case unknownError     case noNetwork     case noData }<\/code><\/pre>\n<p>  <\/p>\n<p>\u041f\u043e\u0441\u0442\u0440\u043e\u0438\u0432 \u0442\u0430\u043a\u0443\u044e \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443 \u044d\u043a\u0440\u0430\u043d\u0430, \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043d\u044f\u0442\u044c\u0441\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c. \u0410 \u0438\u043c\u0435\u043d\u043d\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440\u043e\u043c. \u041f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 \u0438\u043c\u0435\u0435\u0442 \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 <code>MelodyService<\/code>, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u043c\u043e\u043a\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u044d\u0442\u043e\u0442 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b. \u0423\u0441\u043b\u043e\u0432\u0438\u043c\u0441\u044f, \u0447\u0442\u043e <code>Melody<\/code> \u0438\u043c\u0435\u0435\u0442 \u0441\u0442\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u043c\u0435\u0442\u043e\u0434 <code>mocks<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 \u0441\u043f\u0438\u0441\u043e\u043a \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0445 \u043c\u0435\u043b\u043e\u0434\u0438\u0439.<\/p>\n<p>  <\/p>\n<pre><code>class MelodyServiceMock: MelodyService, ServiceRequestMock {      var emulatedResult: ServiceRequestResult = .error(.unknownError)      func getMelodies() -&gt; Promise&lt;[Melody]&gt; {         let melodies = Melody.mocks()         return mock(result: emulatedResult, model: melodies)     } }  enum ServiceRequestResult {     case success     case error(ServiceRequestError) }<\/code><\/pre>\n<p>  <\/p>\n<p>\u0422\u0430\u043a\u0436\u0435 \u043c\u043e\u043a\u0438\u0440\u0443\u0435\u043c ViewController.<\/p>\n<p>  <\/p>\n<pre><code>class MelodyListViewControllerMock: MelodyListViewController {      var shownMelodies: [Melody]?     var shownError: ServiceRequestError?      func showMelodies(melodies: [Melody]) {         shownMelodies = melodies     }      func showLoadError(error: ServiceRequestError) {         shownError = error     } }<\/code><\/pre>\n<p>  <\/p>\n<p><code>ServiceRequestMock<\/code> \u044d\u0442\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b, \u0438\u043c\u0435\u044e\u0449\u0438\u0439 \u0435\u0434\u0438\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0439 \u043c\u0435\u0442\u043e\u0434 <code>func mock&lt;T&gt;(result: ServiceRequestResult, model: T) -&gt; Promise&lt;T&gt;<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 Promise. \u0412 \u044d\u0442\u043e\u043c Promise, \u0437\u0430\u0448\u0438\u0442\u044b \u043b\u0438\u0431\u043e \u043c\u0435\u043b\u043e\u0434\u0438\u0438, \u043b\u0438\u0431\u043e \u043e\u0448\u0438\u0431\u043a\u0430 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u2014 \u0442\u043e \u0447\u0442\u043e \u043f\u0435\u0440\u0435\u0434\u0430\u0435\u0442\u0441\u044f \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0441\u0438\u043c\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0430.<\/p>\n<p>  <\/p>\n<pre><code>protocol ServiceRequestMock {     func mock&lt;T&gt;(result: ServiceRequestResult, model: T) -&gt; Promise&lt;T&gt; }  extension ServiceRequestMock {     func mock&lt;T&gt;(result: ServiceRequestResult, model: T) -&gt; Promise&lt;T&gt; {         return Promise { seal in             switch result {             case .success:                 return seal.fulfill(model)             case .error(let requestError):                 return seal.reject(requestError)             }         }     } }<\/code><\/pre>\n<p>  <\/p>\n<p>\u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c \u043c\u044b \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u0438\u043b\u0438 \u0432\u0441\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0435 \u0434\u043b\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440\u0430.<\/p>\n<p>  <\/p>\n<pre><code>import XCTest import PromiseKit  class MelodyListPresenterTests: XCTestCase {      let view = MelodyListViewControllerMock()     let melodyService = MelodyServiceMock()     var presenter: MelodyListPresenterImp!      override func setUp() {         super.setUp()         presenter = MelodyListPresenterImp(             melodyService: melodyService,              view: view)         view.presenter = presenter     }      func test_getMelodies_success() {         \/\/ given         let melodiesMock = Melody.mocks()         melodyService.emulatedResult = .success          \/\/ when         let fetchMelodies = presenter.fetchMelodies()          \/\/ then         fetchMelodies.done { melodies in             XCTAssertNotNil(self.view.shownMelodies)             XCTAssert(self.view.shownMelodies == melodiesMock)         }.catch { _ in             XCTFail(&quot;Failed melodies upload&quot;)         }     }      func test_getMelodies_fail() {         \/\/ given         melodyService.emulatedResult = .error(.noNetwork)          \/\/ when         let fetchMelodies = presenter.fetchMelodies()          \/\/ then         fetchMelodies.done { melodies in             XCTFail(&quot;Mistakenly uploaded melodies&quot;)         }.catch { _ in             XCTAssertNotNil(self.view.shownError)             XCTAssert(self.view.shownError is ServiceRequestError)             XCTAssert(self.view.shownError as! ServiceRequestError == .noNetwork)         }     } }<\/code><\/pre>\n<p>  <\/p>\n<p>\u0412 \u0438\u0442\u043e\u0433\u0435, \u0443 \u043d\u0430\u0441 \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0441\u044f \u0443\u0434\u043e\u0431\u043d\u044b\u0439 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442 \u0434\u043b\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u0442\u0435\u0441\u0442\u043e\u0432.<\/p>\n<\/div>\n<p>        <script class=\"js-mediator-script\">!function(e){function t(t,n){if(!(n in e)){for(var r,a=e.document,i=a.scripts,o=i.length;o--;)if(-1!==i[o].src.indexOf(t)){r=i[o];break}if(!r){r=a.createElement(\"script\"),r.type=\"text\/javascript\",r.async=!0,r.defer=!0,r.src=t,r.charset=\"UTF-8\";var d=function(){var e=a.getElementsByTagName(\"script\")[0];e.parentNode.insertBefore(r,e)};\"[object Opera]\"==e.opera?a.addEventListener?a.addEventListener(\"DOMContentLoaded\",d,!1):e.attachEvent(\"onload\",d):d()}}}t(\"\/\/mediator.mail.ru\/script\/2820404\/\",\"_mediator\")}(window);<\/script>     <br \/> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"https:\/\/habr.com\/post\/425069\/\"> https:\/\/habr.com\/post\/425069\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"\n<div class=\"post__text post__text-html js-mediator-article\">\n<p>\u041f\u0430\u0442\u0442\u0435\u0440\u043d MVP \u0432 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043c\u043e\u0431\u0438\u043b\u044c\u043d\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u2014 \u044d\u0442\u043e \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u043f\u0440\u043e\u0441\u0442\u043e\u0439 \u0441\u043f\u043e\u0441\u043e\u0431 \u0440\u0430\u0437\u0433\u0440\u0443\u0437\u0438\u0442\u044c ViewController \u0438 \u0432\u044b\u043d\u0435\u0441\u0442\u0438 \u0447\u0430\u0441\u0442\u044c \u043b\u043e\u0433\u0438\u043a\u0438 \u0432 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440. \u041f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442 \u043e\u0431\u0440\u0430\u0441\u0442\u0430\u0442\u044c \u043b\u043e\u0433\u0438\u043a\u043e\u0439, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043b\u0435\u0433\u043a\u043e \u043f\u043e\u0434\u0434\u0430\u0435\u0442\u0441\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e.<\/p>\n<p>  <\/p>\n<p>\u041f\u0443\u0441\u0442\u044c \u0435\u0441\u0442\u044c \u044d\u043a\u0440\u0430\u043d <code>MelodyListViewController<\/code> \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0449\u0438\u0439 \u0441\u043f\u0438\u0441\u043e\u043a \u043c\u0435\u043b\u043e\u0434\u0438\u0439. \u0423 \u043d\u0435\u0433\u043e \u0435\u0441\u0442\u044c \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 <code>MelodyListPresenter<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0433\u043e\u0432\u043e\u0440\u0438\u0442 ViewController \u0447\u0442\u043e \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c. \u0414\u0430\u043d\u043d\u044b\u0435 \u043f\u0440\u0435\u0437\u0435\u043d\u0442\u0435\u0440 \u0431\u0443\u0434\u0435\u0442 \u0431\u0440\u0430\u0442\u044c \u0438\u0437 \u0441\u0435\u0440\u0432\u0438\u0441\u0430 <code>MelodyService<\/code>. <code>MelodyService<\/code> \u044d\u0442\u043e \u043e\u0431\u0435\u0440\u0442\u043a\u0430 \u043d\u0430\u0434 \u0431\u0430\u0437\u043e\u0439 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 api \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u043c, \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u044e\u0449\u0430\u044f \u043c\u0435\u043b\u043e\u0434\u0438\u0438. \u0415\u0441\u043b\u0438 \u0441\u0435\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430, \u0441\u0435\u0440\u0432\u0438\u0441 \u0431\u0435\u0440\u0435\u0442 \u0434\u0430\u043d\u043d\u044b\u0435 \u0441 api, \u0438\u043d\u0430\u0447\u0435 \u0441 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445. \u0422\u0438\u043f\u044b \u043e\u0448\u0438\u0431\u043e\u043a \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u0432 enum <code>ServiceRequestError<\/code>.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-290180","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/290180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=290180"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/290180\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=290180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=290180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=290180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}