filerepository.js 22 KB

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  1. /**
  2. * @license Copyright (c) 2003-2018, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md.
  4. */
  5. /* globals window */
  6. import VirtualTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/virtualtesteditor';
  7. import Plugin from '@ckeditor/ckeditor5-core/src/plugin';
  8. import PendingActions from '@ckeditor/ckeditor5-core/src/pendingactions';
  9. import FileRepository from '../src/filerepository';
  10. import Collection from '@ckeditor/ckeditor5-utils/src/collection';
  11. import { createNativeFileMock, UploadAdapterMock, NativeFileReaderMock } from './_utils/mocks';
  12. import log from '@ckeditor/ckeditor5-utils/src/log';
  13. import testUtils from '@ckeditor/ckeditor5-core/tests/_utils/utils';
  14. import FileReader from '../src/filereader';
  15. describe( 'FileRepository', () => {
  16. let editor, fileRepository, adapterMock;
  17. testUtils.createSinonSandbox();
  18. class UploadAdapterPluginMock extends Plugin {
  19. init() {
  20. fileRepository = this.editor.plugins.get( 'FileRepository' );
  21. fileRepository.createUploadAdapter = loader => {
  22. adapterMock = new UploadAdapterMock( loader );
  23. return adapterMock;
  24. };
  25. }
  26. }
  27. beforeEach( () => {
  28. return VirtualTestEditor
  29. .create( {
  30. plugins: [ FileRepository, UploadAdapterPluginMock ]
  31. } )
  32. .then( newEditor => {
  33. editor = newEditor;
  34. } );
  35. } );
  36. afterEach( () => {
  37. return editor.destroy();
  38. } );
  39. it( 'should be initialized', () => {
  40. expect( fileRepository ).to.be.instanceOf( FileRepository );
  41. } );
  42. describe( 'init()', () => {
  43. it( 'should create loaders collection', () => {
  44. expect( fileRepository.loaders ).to.be.instanceOf( Collection );
  45. } );
  46. it( 'should initialize uploaded observable', done => {
  47. expect( fileRepository.uploaded ).to.equal( 0 );
  48. fileRepository.on( 'change:uploaded', ( evt, name, value ) => {
  49. expect( value ).to.equal( 10 );
  50. done();
  51. } );
  52. fileRepository.uploaded = 10;
  53. } );
  54. it( 'should initialize uploadTotal', done => {
  55. expect( fileRepository.uploadTotal ).to.be.null;
  56. fileRepository.on( 'change:uploadTotal', ( evt, name, value ) => {
  57. expect( value ).to.equal( 10 );
  58. done();
  59. } );
  60. fileRepository.uploadTotal = 10;
  61. } );
  62. it( 'should initialize uploadedPercent', done => {
  63. expect( fileRepository.uploadedPercent ).to.equal( 0 );
  64. fileRepository.on( 'change:uploadedPercent', ( evt, name, value ) => {
  65. expect( value ).to.equal( 20 );
  66. done();
  67. } );
  68. fileRepository.uploadTotal = 200;
  69. fileRepository.uploaded = 40;
  70. } );
  71. } );
  72. describe( 'pending actions', () => {
  73. let pendingActions;
  74. beforeEach( () => {
  75. pendingActions = editor.plugins.get( PendingActions );
  76. } );
  77. it( 'should requires PendingActions plugin', () => {
  78. expect( editor.plugins.get( PendingActions ) ).to.instanceof( PendingActions );
  79. } );
  80. it( 'should add pending action when upload is in progress', () => {
  81. expect( pendingActions ).to.have.property( 'hasAny', false );
  82. expect( Array.from( pendingActions ) ).to.length( 0 );
  83. fileRepository.createLoader( createNativeFileMock() );
  84. expect( pendingActions ).to.have.property( 'hasAny', true );
  85. expect( Array.from( pendingActions, action => action.message ) ).to.have.members( [ 'Upload in progress 0%.' ] );
  86. } );
  87. it( 'should add only one pending action in a case of multiple load', () => {
  88. fileRepository.createLoader( createNativeFileMock() );
  89. fileRepository.createLoader( createNativeFileMock() );
  90. fileRepository.createLoader( createNativeFileMock() );
  91. expect( Array.from( pendingActions ) ).to.length( 1 );
  92. } );
  93. it( 'should remove pending action when all uploads are finished', () => {
  94. expect( pendingActions ).to.have.property( 'hasAny', false );
  95. expect( Array.from( pendingActions ) ).to.length( 0 );
  96. const loader1 = fileRepository.createLoader( createNativeFileMock() );
  97. const loader2 = fileRepository.createLoader( createNativeFileMock() );
  98. expect( pendingActions ).to.have.property( 'hasAny', true );
  99. expect( Array.from( pendingActions, action => action.message ) ).to.have.members( [ 'Upload in progress 0%.' ] );
  100. fileRepository.destroyLoader( loader1 );
  101. expect( pendingActions ).to.have.property( 'hasAny', true );
  102. expect( Array.from( pendingActions, action => action.message ) ).to.have.members( [ 'Upload in progress 0%.' ] );
  103. fileRepository.destroyLoader( loader2 );
  104. expect( pendingActions ).to.have.property( 'hasAny', false );
  105. expect( Array.from( pendingActions ) ).to.length( 0 );
  106. } );
  107. it( 'should bind pending action message to upload percentage value', () => {
  108. fileRepository.createLoader( createNativeFileMock() );
  109. fileRepository.uploadedPercent = 10.345;
  110. expect( Array.from( pendingActions )[ 0 ] ).to.have.property( 'message', 'Upload in progress 10%.' );
  111. fileRepository.uploadedPercent = 30.235;
  112. expect( Array.from( pendingActions )[ 0 ] ).to.have.property( 'message', 'Upload in progress 30%.' );
  113. } );
  114. it( 'should add pending action correctly when one upload is after another', () => {
  115. const loader1 = fileRepository.createLoader( createNativeFileMock() );
  116. expect( pendingActions.first ).to.have.property( 'message', 'Upload in progress 0%.' );
  117. fileRepository.destroyLoader( loader1 );
  118. expect( pendingActions.first ).to.null;
  119. fileRepository.createLoader( createNativeFileMock() );
  120. expect( pendingActions.first ).to.have.property( 'message', 'Upload in progress 0%.' );
  121. } );
  122. } );
  123. describe( 'createLoader()', () => {
  124. it( 'should return null if adapter is not present', () => {
  125. const stub = testUtils.sinon.stub( log, 'error' );
  126. fileRepository.createUploadAdapter = undefined;
  127. expect( fileRepository.createLoader( createNativeFileMock() ) ).to.be.null;
  128. sinon.assert.calledOnce( stub );
  129. sinon.assert.calledWithExactly(
  130. stub,
  131. 'filerepository-no-upload-adapter: Upload adapter is not defined.'
  132. );
  133. } );
  134. it( 'should setup listeners to update progress observables', () => {
  135. const loader1 = fileRepository.createLoader( createNativeFileMock() );
  136. const loader2 = fileRepository.createLoader( createNativeFileMock() );
  137. const loader3 = fileRepository.createLoader( createNativeFileMock() );
  138. loader1.uploaded = 10;
  139. loader1.uploadTotal = 100;
  140. loader2.uploaded = 50;
  141. loader2.uploadTotal = 200;
  142. loader3.uploaded = 40;
  143. loader3.uploadTotal = 200;
  144. expect( fileRepository.uploaded ).to.equal( 100 );
  145. expect( fileRepository.uploadTotal ).to.equal( 500 );
  146. expect( fileRepository.uploadedPercent ).to.equal( 20 );
  147. } );
  148. } );
  149. describe( 'getLoader()', () => {
  150. it( 'should return null if loader does not exists', () => {
  151. const file1 = createNativeFileMock();
  152. const file2 = createNativeFileMock();
  153. fileRepository.createLoader( file2 );
  154. expect( fileRepository.getLoader( file1 ) ).to.be.null;
  155. } );
  156. it( 'should return loader by file instance (initialized with file)', () => {
  157. const file = createNativeFileMock();
  158. const loader = fileRepository.createLoader( file );
  159. expect( fileRepository.getLoader( file ) ).to.equal( loader );
  160. } );
  161. it( 'should return loader by promise instance (initialized with promise)', () => {
  162. const promise = Promise.resolve( createNativeFileMock() );
  163. const loader = fileRepository.createLoader( promise );
  164. expect( fileRepository.getLoader( promise ) ).to.equal( loader );
  165. } );
  166. it( 'should return loader by file instance (initialized with promise)', done => {
  167. const promise = Promise.resolve( createNativeFileMock() );
  168. const loader = fileRepository.createLoader( promise );
  169. loader.file.then( fileInstance => {
  170. expect( fileRepository.getLoader( fileInstance ) ).to.equal( loader );
  171. done();
  172. } );
  173. } );
  174. } );
  175. describe( 'destroyLoader()', () => {
  176. let file, loader, destroySpy;
  177. beforeEach( () => {
  178. file = createNativeFileMock();
  179. loader = fileRepository.createLoader( file );
  180. destroySpy = testUtils.sinon.spy( loader, '_destroy' );
  181. } );
  182. it( 'should destroy provided loader', () => {
  183. fileRepository.destroyLoader( loader );
  184. sinon.assert.calledOnce( destroySpy );
  185. expect( fileRepository.getLoader( file ) ).to.be.null;
  186. expect( fileRepository.loaders.length ).to.equal( 0 );
  187. expect( Array.from( fileRepository._loadersMap.keys ).length ).to.equal( 0 );
  188. } );
  189. it( 'should destroy loader by provided file (initialized with file)', () => {
  190. fileRepository.destroyLoader( file );
  191. sinon.assert.calledOnce( destroySpy );
  192. expect( fileRepository.getLoader( file ) ).to.be.null;
  193. expect( fileRepository.loaders.length ).to.equal( 0 );
  194. expect( Array.from( fileRepository._loadersMap.keys ).length ).to.equal( 0 );
  195. } );
  196. it( 'should destroy loader by provided promise (initialized with promise)', () => {
  197. fileRepository.destroyLoader( loader );
  198. const promise = new Promise( resolve => resolve( createNativeFileMock() ) );
  199. const newLoader = fileRepository.createLoader( promise );
  200. destroySpy = testUtils.sinon.spy( newLoader, '_destroy' );
  201. fileRepository.destroyLoader( promise );
  202. sinon.assert.calledOnce( destroySpy );
  203. expect( fileRepository.getLoader( promise ) ).to.be.null;
  204. expect( fileRepository.loaders.length ).to.equal( 0 );
  205. expect( Array.from( fileRepository._loadersMap.keys() ).length ).to.equal( 0 );
  206. } );
  207. it( 'should destroy loader by provided file (initialized with promise)', () => {
  208. fileRepository.destroyLoader( loader );
  209. const promise = Promise.resolve( createNativeFileMock() );
  210. const newLoader = fileRepository.createLoader( promise );
  211. destroySpy = testUtils.sinon.spy( newLoader, '_destroy' );
  212. return newLoader.file.then( fileInstance => {
  213. expect( fileRepository.loaders.length ).to.equal( 1 );
  214. expect( Array.from( fileRepository._loadersMap.keys() ).length ).to.equal( 2 );
  215. fileRepository.destroyLoader( fileInstance );
  216. sinon.assert.calledOnce( destroySpy );
  217. expect( fileRepository.getLoader( fileInstance ) ).to.be.null;
  218. expect( fileRepository.loaders.length ).to.equal( 0 );
  219. expect( Array.from( fileRepository._loadersMap.keys() ).length ).to.equal( 0 );
  220. } );
  221. } );
  222. } );
  223. describe( 'Loader', () => {
  224. let loader, file, nativeReaderMock;
  225. beforeEach( () => {
  226. testUtils.sinon.stub( window, 'FileReader' ).callsFake( () => {
  227. nativeReaderMock = new NativeFileReaderMock();
  228. return nativeReaderMock;
  229. } );
  230. file = createNativeFileMock();
  231. loader = fileRepository.createLoader( file );
  232. } );
  233. describe( 'constructor()', () => {
  234. it( 'should initialize id', () => {
  235. expect( loader.id ).to.be.a( 'string' );
  236. } );
  237. it( 'should initialize filePromiseWrapper', () => {
  238. expect( loader._filePromiseWrapper ).to.not.be.null;
  239. expect( loader._filePromiseWrapper.promise ).to.be.instanceOf( Promise );
  240. expect( loader._filePromiseWrapper.resolver ).to.be.instanceOf( Function );
  241. expect( loader._filePromiseWrapper.rejecter ).to.be.instanceOf( Function );
  242. expect( loader._filePromiseWrapper.isFulfilled ).to.be.false;
  243. } );
  244. it( 'should initialize adapter', () => {
  245. expect( loader._adapter ).to.equal( adapterMock );
  246. } );
  247. it( 'should initialize reader', () => {
  248. expect( loader._reader ).to.be.instanceOf( FileReader );
  249. } );
  250. it( 'should initialize status observable', done => {
  251. expect( loader.status ).to.equal( 'idle' );
  252. loader.on( 'change:status', ( evt, name, value ) => {
  253. expect( value ).to.equal( 'uploading' );
  254. done();
  255. } );
  256. loader.status = 'uploading';
  257. } );
  258. it( 'should initialize uploaded observable', done => {
  259. expect( loader.uploaded ).to.equal( 0 );
  260. loader.on( 'change:uploaded', ( evt, name, value ) => {
  261. expect( value ).to.equal( 100 );
  262. done();
  263. } );
  264. loader.uploaded = 100;
  265. } );
  266. it( 'should initialize uploadTotal observable', done => {
  267. expect( loader.uploadTotal ).to.equal( null );
  268. loader.on( 'change:uploadTotal', ( evt, name, value ) => {
  269. expect( value ).to.equal( 100 );
  270. done();
  271. } );
  272. loader.uploadTotal = 100;
  273. } );
  274. it( 'should initialize uploadedPercent observable', done => {
  275. expect( loader.uploadedPercent ).to.equal( 0 );
  276. loader.on( 'change:uploadedPercent', ( evt, name, value ) => {
  277. expect( value ).to.equal( 23 );
  278. done();
  279. } );
  280. loader.uploaded = 23;
  281. loader.uploadTotal = 100;
  282. } );
  283. it( 'should initialize uploadResponse observable', done => {
  284. const response = {};
  285. expect( loader.uploadResponse ).to.equal( null );
  286. loader.on( 'change:uploadResponse', ( evt, name, value ) => {
  287. expect( value ).to.equal( response );
  288. done();
  289. } );
  290. loader.uploadResponse = response;
  291. } );
  292. } );
  293. describe( 'file getter', () => {
  294. it( 'should return promise', () => {
  295. expect( loader.file ).to.instanceof( Promise );
  296. } );
  297. it( 'should return promise which resolves to a file', () => {
  298. return loader.file.then( fileInstance => {
  299. expect( fileInstance ).to.equal( file );
  300. } );
  301. } );
  302. it( 'should return promise which resolves to null after loader is destroyed (destroy before)', () => {
  303. loader._destroy();
  304. return loader.file.then( fileInstance => {
  305. expect( fileInstance ).to.be.null;
  306. } );
  307. } );
  308. it( 'should return promise which resolves to null after loader is destroyed (destroy after)', () => {
  309. const promise = loader.file.then( fileInstance => {
  310. expect( fileInstance ).to.be.null;
  311. } );
  312. loader._destroy();
  313. return promise;
  314. } );
  315. it( 'should return promise which resolves to null after loader is destroyed (file promise resolved, destroy after)', () => {
  316. return loader._filePromiseWrapper.promise.then( () => {
  317. loader.file.then( fileInstance => {
  318. expect( fileInstance ).to.be.null;
  319. } );
  320. loader._destroy();
  321. } );
  322. } );
  323. } );
  324. describe( 'read()', () => {
  325. it( 'should throw error when status is different than idle', () => {
  326. loader.status = 'uploading';
  327. expect( () => {
  328. loader.read();
  329. } ).to.throw( 'filerepository-read-wrong-status: You cannot call read if the status is different than idle.' );
  330. } );
  331. it( 'should return a promise', () => {
  332. expect( loader.read() ).to.be.instanceof( Promise );
  333. } );
  334. it( 'should set status to "reading"', () => {
  335. loader.read();
  336. expect( loader.status ).to.equal( 'reading' );
  337. } );
  338. it( 'should resolve promise when file promise is resolved', () => {
  339. let resolveFile = null;
  340. const filePromise = new Promise( resolve => {
  341. resolveFile = resolve;
  342. } );
  343. const loader = fileRepository.createLoader( filePromise );
  344. const promise = loader.read()
  345. .then( data => {
  346. expect( data ).to.equal( 'result data' );
  347. expect( loader.status ).to.equal( 'idle' );
  348. } );
  349. resolveFile( createNativeFileMock() );
  350. loader.file.then( () => nativeReaderMock.mockSuccess( 'result data' ) );
  351. return promise;
  352. } );
  353. it( 'should reject promise when file promise is rejected', () => {
  354. let rejectFile = null;
  355. const filePromise = new Promise( ( resolve, reject ) => {
  356. rejectFile = reject;
  357. } );
  358. const loader = fileRepository.createLoader( filePromise );
  359. const promise = loader.read().catch( e => {
  360. expect( e ).to.equal( 'File loading error' );
  361. expect( loader.status ).to.equal( 'error' );
  362. } );
  363. rejectFile( 'File loading error' );
  364. return promise;
  365. } );
  366. it( 'should reject promise when reading is aborted (before file promise is resolved)', () => {
  367. const promise = loader.read().catch( e => {
  368. expect( e ).to.equal( 'aborted' );
  369. expect( loader.status ).to.equal( 'aborted' );
  370. } );
  371. loader.abort();
  372. return promise;
  373. } );
  374. it( 'should reject promise when reading is aborted (after file promise is resolved)', () => {
  375. const promise = loader.read().catch( e => {
  376. expect( e ).to.equal( 'aborted' );
  377. expect( loader.status ).to.equal( 'aborted' );
  378. } );
  379. loader.file.then( () => loader.abort() );
  380. return promise;
  381. } );
  382. it( 'should reject promise on reading error (after file promise is resolved)', () => {
  383. const promise = loader.read().catch( e => {
  384. expect( e ).to.equal( 'reading error' );
  385. expect( loader.status ).to.equal( 'error' );
  386. } );
  387. loader.file.then( () => nativeReaderMock.mockError( 'reading error' ) );
  388. return promise;
  389. } );
  390. it( 'should resolve promise on reading complete (after file promise is resolved)', () => {
  391. const promise = loader.read()
  392. .then( data => {
  393. expect( data ).to.equal( 'result data' );
  394. expect( loader.status ).to.equal( 'idle' );
  395. } );
  396. loader.file.then( () => nativeReaderMock.mockSuccess( 'result data' ) );
  397. return promise;
  398. } );
  399. } );
  400. describe( 'upload()', () => {
  401. it( 'should throw error when status is different than idle', () => {
  402. loader.status = 'reading';
  403. expect( () => {
  404. loader.upload();
  405. } ).to.throw( 'filerepository-upload-wrong-status: You cannot call upload if the status is different than idle.' );
  406. } );
  407. it( 'should return a promise', () => {
  408. expect( loader.upload() ).to.be.instanceof( Promise );
  409. } );
  410. it( 'should set status to "uploading"', () => {
  411. loader.upload();
  412. expect( loader.status ).to.equal( 'uploading' );
  413. } );
  414. it( 'should resolve promise when file promise is resolved', () => {
  415. let resolveFile = null;
  416. const filePromise = new Promise( resolve => {
  417. resolveFile = resolve;
  418. } );
  419. const loader = fileRepository.createLoader( filePromise );
  420. const promise = loader.upload()
  421. .then( data => {
  422. expect( data ).to.equal( 'result data' );
  423. expect( loader.status ).to.equal( 'idle' );
  424. } );
  425. resolveFile( createNativeFileMock() );
  426. loader.file.then( () => adapterMock.mockSuccess( 'result data' ) );
  427. return promise;
  428. } );
  429. it( 'should reject promise when file promise is rejected', () => {
  430. let rejectFile = null;
  431. const filePromise = new Promise( ( resolve, reject ) => {
  432. rejectFile = reject;
  433. } );
  434. const loader = fileRepository.createLoader( filePromise );
  435. const promise = loader.upload().catch( e => {
  436. expect( e ).to.equal( 'File loading error' );
  437. expect( loader.status ).to.equal( 'error' );
  438. } );
  439. rejectFile( 'File loading error' );
  440. return promise;
  441. } );
  442. it( 'should reject promise when uploading is aborted (before file promise is resolved)', () => {
  443. const promise = loader.upload().catch( e => {
  444. expect( e ).to.equal( 'aborted' );
  445. expect( loader.status ).to.equal( 'aborted' );
  446. } );
  447. loader.abort();
  448. return promise;
  449. } );
  450. it( 'should reject promise when uploading is aborted (after file promise is resolved)', () => {
  451. const promise = loader.upload().catch( e => {
  452. expect( e ).to.equal( 'aborted' );
  453. expect( loader.status ).to.equal( 'aborted' );
  454. } );
  455. loader.file.then( () => loader.abort() );
  456. return promise;
  457. } );
  458. it( 'should reject promise on reading error (after file promise is resolved)', () => {
  459. const promise = loader.upload().catch( e => {
  460. expect( e ).to.equal( 'uploading error' );
  461. expect( loader.status ).to.equal( 'error' );
  462. } );
  463. loader.file.then( () => adapterMock.mockError( 'uploading error' ) );
  464. return promise;
  465. } );
  466. it( 'should resolve promise on reading complete (after file promise is resolved)', () => {
  467. const promise = loader.upload()
  468. .then( data => {
  469. expect( data ).to.equal( 'result data' );
  470. expect( loader.status ).to.equal( 'idle' );
  471. } );
  472. loader.file.then( () => adapterMock.mockSuccess( 'result data' ) );
  473. return promise;
  474. } );
  475. it( 'should monitor upload progress', () => {
  476. const promise = loader.upload()
  477. .then( data => {
  478. expect( data ).to.equal( 'result data' );
  479. expect( loader.status ).to.equal( 'idle' );
  480. } );
  481. loader.file.then( () => {
  482. expect( loader.uploaded ).to.equal( 0 );
  483. expect( loader.uploadTotal ).to.be.null;
  484. adapterMock.mockProgress( 1, 10 );
  485. expect( loader.uploaded ).to.equal( 1 );
  486. expect( loader.uploadTotal ).to.equal( 10 );
  487. adapterMock.mockProgress( 6, 10 );
  488. expect( loader.uploaded ).to.equal( 6 );
  489. expect( loader.uploadTotal ).to.equal( 10 );
  490. adapterMock.mockSuccess( 'result data' );
  491. } );
  492. return promise;
  493. } );
  494. } );
  495. describe( 'abort()', () => {
  496. let filePromiseRejecterSpy, readerAbortSpy, adapterAbortSpy;
  497. beforeEach( () => {
  498. filePromiseRejecterSpy = testUtils.sinon.spy( loader._filePromiseWrapper, 'rejecter' );
  499. readerAbortSpy = testUtils.sinon.spy( loader._reader, 'abort' );
  500. adapterAbortSpy = testUtils.sinon.spy( loader._adapter, 'abort' );
  501. } );
  502. it( 'should abort correctly before read/upload is called', () => {
  503. loader.abort();
  504. expect( filePromiseRejecterSpy.callCount ).to.equal( 1 );
  505. expect( readerAbortSpy.callCount ).to.equal( 0 );
  506. expect( adapterAbortSpy.callCount ).to.equal( 0 );
  507. } );
  508. it( 'should abort correctly after successful read', () => {
  509. const promise = loader.read()
  510. .then( data => {
  511. expect( data ).to.equal( 'result data' );
  512. expect( loader.status ).to.equal( 'idle' );
  513. loader.abort();
  514. expect( filePromiseRejecterSpy.callCount ).to.equal( 0 );
  515. expect( readerAbortSpy.callCount ).to.equal( 0 );
  516. expect( adapterAbortSpy.callCount ).to.equal( 0 );
  517. } );
  518. loader.file.then( () => nativeReaderMock.mockSuccess( 'result data' ) );
  519. return promise;
  520. } );
  521. it( 'should abort correctly after successful upload', () => {
  522. const promise = loader.upload()
  523. .then( data => {
  524. expect( data ).to.equal( 'result data' );
  525. expect( loader.status ).to.equal( 'idle' );
  526. loader.abort();
  527. expect( filePromiseRejecterSpy.callCount ).to.equal( 0 );
  528. expect( readerAbortSpy.callCount ).to.equal( 0 );
  529. expect( adapterAbortSpy.callCount ).to.equal( 0 );
  530. } );
  531. loader.file.then( () => adapterMock.mockSuccess( 'result data' ) );
  532. return promise;
  533. } );
  534. } );
  535. } );
  536. } );