plugincollection.js 20 KB

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  1. /**
  2. * @license Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
  3. * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
  4. */
  5. /* globals setTimeout, console */
  6. import Editor from '../src/editor/editor';
  7. import PluginCollection from '../src/plugincollection';
  8. import Plugin from '../src/plugin';
  9. import { expectToThrowCKEditorError, assertCKEditorError } from '@ckeditor/ckeditor5-utils/tests/_utils/utils';
  10. let editor, availablePlugins;
  11. let PluginA, PluginB, PluginC, PluginD, PluginE, PluginF, PluginG, PluginH, PluginI, PluginJ, PluginK, PluginX, PluginFoo, AnotherPluginFoo;
  12. class TestError extends Error {}
  13. class ChildPlugin extends Plugin {}
  14. class GrandPlugin extends ChildPlugin {}
  15. describe( 'PluginCollection', () => {
  16. before( () => {
  17. PluginA = createPlugin( 'A' );
  18. PluginB = createPlugin( 'B' );
  19. PluginC = createPlugin( 'C' );
  20. PluginD = createPlugin( 'D' );
  21. PluginE = createPlugin( 'E' );
  22. PluginF = createPlugin( 'F' );
  23. PluginG = createPlugin( 'G', GrandPlugin );
  24. PluginH = createPlugin( 'H' );
  25. PluginI = createPlugin( 'I' );
  26. PluginJ = createPlugin( 'J' );
  27. PluginK = createPlugin( 'K' );
  28. PluginX = class extends Plugin {
  29. constructor( editor ) {
  30. super( editor );
  31. throw new TestError( 'Some error inside a plugin' );
  32. }
  33. };
  34. PluginFoo = createPlugin( 'Foo' );
  35. AnotherPluginFoo = createPlugin( 'Foo' );
  36. PluginC.requires = [ PluginB ];
  37. PluginD.requires = [ PluginA, PluginC ];
  38. PluginF.requires = [ PluginE ];
  39. PluginE.requires = [ PluginF ];
  40. PluginH.requires = [ PluginI ];
  41. PluginJ.requires = [ 'K' ];
  42. PluginK.requires = [ PluginA ];
  43. editor = new Editor();
  44. } );
  45. beforeEach( () => {
  46. availablePlugins = [
  47. PluginA,
  48. PluginB,
  49. PluginC,
  50. PluginD,
  51. PluginE,
  52. PluginF,
  53. PluginG,
  54. PluginH,
  55. PluginI,
  56. PluginJ,
  57. PluginK,
  58. PluginX
  59. ];
  60. PluginFoo.requires = [];
  61. } );
  62. afterEach( () => {
  63. sinon.restore();
  64. } );
  65. describe( 'load()', () => {
  66. it( 'should not fail when trying to load 0 plugins (empty array)', () => {
  67. const plugins = new PluginCollection( editor, availablePlugins );
  68. return plugins.init( [] )
  69. .then( () => {
  70. expect( getPlugins( plugins ) ).to.be.empty;
  71. } );
  72. } );
  73. it( 'should add collection items for loaded plugins', () => {
  74. const plugins = new PluginCollection( editor, availablePlugins );
  75. return plugins.init( [ PluginA, PluginB ] )
  76. .then( () => {
  77. expect( getPlugins( plugins ).length ).to.equal( 2 );
  78. expect( plugins.get( PluginA ) ).to.be.an.instanceof( PluginA );
  79. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  80. } );
  81. } );
  82. it( 'should add collection items for loaded plugins using plugin names', () => {
  83. const plugins = new PluginCollection( editor, availablePlugins );
  84. return plugins.init( [ 'A', 'B' ] )
  85. .then( () => {
  86. expect( getPlugins( plugins ).length ).to.equal( 2 );
  87. expect( plugins.get( 'A' ) ).to.be.an.instanceof( PluginA );
  88. expect( plugins.get( 'B' ) ).to.be.an.instanceof( PluginB );
  89. } );
  90. } );
  91. it( 'should load dependency plugins', () => {
  92. const plugins = new PluginCollection( editor, availablePlugins );
  93. const spy = sinon.spy( plugins, '_add' );
  94. return plugins.init( [ PluginA, PluginC ] )
  95. .then( loadedPlugins => {
  96. expect( getPlugins( plugins ).length ).to.equal( 3 );
  97. expect( getPluginNames( getPluginsFromSpy( spy ) ) )
  98. .to.deep.equal( [ 'A', 'B', 'C' ], 'order by plugins._add()' );
  99. expect( getPluginNames( loadedPlugins ) )
  100. .to.deep.equal( [ 'A', 'B', 'C' ], 'order by returned value' );
  101. } );
  102. } );
  103. it( 'should load dependency plugins defined by plugin names', () => {
  104. const plugins = new PluginCollection( editor, availablePlugins );
  105. const spy = sinon.spy( plugins, '_add' );
  106. return plugins.init( [ 'J' ] )
  107. .then( loadedPlugins => {
  108. expect( getPlugins( plugins ).length ).to.equal( 3 );
  109. expect( getPluginNames( getPluginsFromSpy( spy ) ) )
  110. .to.deep.equal( [ 'A', 'K', 'J' ], 'order by plugins._add()' );
  111. expect( getPluginNames( loadedPlugins ) )
  112. .to.deep.equal( [ 'A', 'K', 'J' ], 'order by returned value' );
  113. } );
  114. } );
  115. it( 'should be ok when dependencies are loaded first', () => {
  116. const plugins = new PluginCollection( editor, availablePlugins );
  117. const spy = sinon.spy( plugins, '_add' );
  118. return plugins.init( [ PluginA, PluginB, PluginC ] )
  119. .then( loadedPlugins => {
  120. expect( getPlugins( plugins ).length ).to.equal( 3 );
  121. expect( getPluginNames( getPluginsFromSpy( spy ) ) )
  122. .to.deep.equal( [ 'A', 'B', 'C' ], 'order by plugins._add()' );
  123. expect( getPluginNames( loadedPlugins ) )
  124. .to.deep.equal( [ 'A', 'B', 'C' ], 'order by returned value' );
  125. } );
  126. } );
  127. it( 'should load deep dependency plugins', () => {
  128. const plugins = new PluginCollection( editor, availablePlugins );
  129. const spy = sinon.spy( plugins, '_add' );
  130. return plugins.init( [ PluginD ] )
  131. .then( loadedPlugins => {
  132. expect( getPlugins( plugins ).length ).to.equal( 4 );
  133. // The order must have dependencies first.
  134. expect( getPluginNames( getPluginsFromSpy( spy ) ) )
  135. .to.deep.equal( [ 'A', 'B', 'C', 'D' ], 'order by plugins._add()' );
  136. expect( getPluginNames( loadedPlugins ) )
  137. .to.deep.equal( [ 'A', 'B', 'C', 'D' ], 'order by returned value' );
  138. } );
  139. } );
  140. it( 'should handle cross dependency plugins', () => {
  141. const plugins = new PluginCollection( editor, availablePlugins );
  142. const spy = sinon.spy( plugins, '_add' );
  143. return plugins.init( [ PluginA, PluginE ] )
  144. .then( loadedPlugins => {
  145. expect( getPlugins( plugins ).length ).to.equal( 3 );
  146. // The order must have dependencies first.
  147. expect( getPluginNames( getPluginsFromSpy( spy ) ) )
  148. .to.deep.equal( [ 'A', 'F', 'E' ], 'order by plugins._add()' );
  149. expect( getPluginNames( loadedPlugins ) )
  150. .to.deep.equal( [ 'A', 'F', 'E' ], 'order by returned value' );
  151. } );
  152. } );
  153. it( 'should load grand child classes', () => {
  154. const plugins = new PluginCollection( editor, availablePlugins );
  155. return plugins.init( [ PluginG ] )
  156. .then( () => {
  157. expect( getPlugins( plugins ).length ).to.equal( 1 );
  158. } );
  159. } );
  160. it( 'should load plugin which does not extend the base Plugin class', () => {
  161. class Y {}
  162. const plugins = new PluginCollection( editor, availablePlugins );
  163. return plugins.init( [ Y ] )
  164. .then( () => {
  165. expect( getPlugins( plugins ).length ).to.equal( 1 );
  166. } );
  167. } );
  168. it( 'should load plugin which is a simple function', () => {
  169. function pluginAsFunction( editor ) {
  170. this.editor = editor;
  171. }
  172. const plugins = new PluginCollection( editor, availablePlugins );
  173. return plugins.init( [ pluginAsFunction ] )
  174. .then( () => {
  175. expect( getPlugins( plugins ).length ).to.equal( 1 );
  176. } );
  177. } );
  178. it( 'should set the `editor` property on loaded plugins', () => {
  179. const plugins = new PluginCollection( editor, availablePlugins );
  180. function pluginAsFunction( editor ) {
  181. this.editor = editor;
  182. }
  183. class Y {
  184. constructor( editor ) {
  185. this.editor = editor;
  186. }
  187. }
  188. return plugins.init( [ PluginA, PluginB, pluginAsFunction, Y ] )
  189. .then( () => {
  190. expect( plugins.get( PluginA ).editor ).to.equal( editor );
  191. expect( plugins.get( PluginB ).editor ).to.equal( editor );
  192. expect( plugins.get( pluginAsFunction ).editor ).to.equal( editor );
  193. expect( plugins.get( Y ).editor ).to.equal( editor );
  194. } );
  195. } );
  196. it( 'should reject on broken plugins (forward the error thrown in a plugin)', () => {
  197. const consoleErrorStub = sinon.stub( console, 'error' );
  198. const plugins = new PluginCollection( editor, availablePlugins );
  199. return plugins.init( [ PluginA, PluginX, PluginB ] )
  200. // Throw here, so if by any chance plugins.init() was resolved correctly catch() will be stil executed.
  201. .then( () => {
  202. throw new Error( 'Test error: this promise should not be resolved successfully' );
  203. } )
  204. .catch( err => {
  205. expect( err ).to.be.an.instanceof( TestError );
  206. expect( err ).to.have.property( 'message', 'Some error inside a plugin' );
  207. sinon.assert.calledOnce( consoleErrorStub );
  208. expect( consoleErrorStub.args[ 0 ][ 0 ] ).to.match( /^plugincollection-load:/ );
  209. } );
  210. } );
  211. it( 'should reject when loading non-existent plugin', () => {
  212. const consoleErrorStub = sinon.stub( console, 'error' );
  213. const plugins = new PluginCollection( editor, availablePlugins );
  214. return plugins.init( [ 'NonExistentPlugin' ] )
  215. // Throw here, so if by any chance plugins.init() was resolved correctly catch() will be stil executed.
  216. .then( () => {
  217. throw new Error( 'Test error: this promise should not be resolved successfully' );
  218. } )
  219. .catch( err => {
  220. assertCKEditorError( err, /^plugincollection-plugin-not-found/, editor );
  221. sinon.assert.calledOnce( consoleErrorStub );
  222. expect( consoleErrorStub.args[ 0 ][ 0 ] ).to.match( /^plugincollection-plugin-not-found:/ );
  223. } );
  224. } );
  225. it( 'should load chosen plugins (plugins and removePlugins are constructors)', () => {
  226. const plugins = new PluginCollection( editor, availablePlugins );
  227. return plugins.init( [ PluginA, PluginB, PluginC ], [ PluginA ] )
  228. .then( () => {
  229. expect( getPlugins( plugins ).length ).to.equal( 2 );
  230. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  231. expect( plugins.get( PluginC ) ).to.be.an.instanceof( PluginC );
  232. } );
  233. } );
  234. it( 'should load chosen plugins (plugins are constructors, removePlugins are names)', () => {
  235. const plugins = new PluginCollection( editor, availablePlugins );
  236. return plugins.init( [ PluginA, PluginB, PluginC ], [ 'A' ] )
  237. .then( () => {
  238. expect( getPlugins( plugins ).length ).to.equal( 2 );
  239. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  240. expect( plugins.get( PluginC ) ).to.be.an.instanceof( PluginC );
  241. } );
  242. } );
  243. it( 'should load chosen plugins (plugins and removePlugins are names)', () => {
  244. const plugins = new PluginCollection( editor, availablePlugins );
  245. return plugins.init( [ 'A', 'B', 'C' ], [ 'A' ] )
  246. .then( () => {
  247. expect( getPlugins( plugins ).length ).to.equal( 2 );
  248. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  249. expect( plugins.get( PluginC ) ).to.be.an.instanceof( PluginC );
  250. } );
  251. } );
  252. it( 'should load chosen plugins (plugins are names, removePlugins are constructors)', () => {
  253. const plugins = new PluginCollection( editor, availablePlugins );
  254. return plugins.init( [ 'A', 'B', 'C' ], [ PluginA ] )
  255. .then( () => {
  256. expect( getPlugins( plugins ).length ).to.equal( 2 );
  257. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  258. expect( plugins.get( PluginC ) ).to.be.an.instanceof( PluginC );
  259. } );
  260. } );
  261. it( 'should load chosen plugins (plugins are names, removePlugins contains an anonymous plugin)', () => {
  262. class AnonymousPlugin {}
  263. const plugins = new PluginCollection( editor, [ AnonymousPlugin ].concat( availablePlugins ) );
  264. return plugins.init( [ AnonymousPlugin, 'A', 'B' ], [ AnonymousPlugin ] )
  265. .then( () => {
  266. expect( getPlugins( plugins ).length ).to.equal( 2 );
  267. expect( plugins.get( PluginA ) ).to.be.an.instanceof( PluginA );
  268. expect( plugins.get( PluginB ) ).to.be.an.instanceof( PluginB );
  269. } );
  270. } );
  271. it( 'should reject when loaded plugin requires not allowed plugins', () => {
  272. const consoleErrorStub = sinon.stub( console, 'error' );
  273. const plugins = new PluginCollection( editor, availablePlugins );
  274. return plugins.init( [ PluginA, PluginB, PluginC, PluginD ], [ PluginA, PluginB ] )
  275. // Throw here, so if by any chance plugins.init() was resolved correctly catch() will be still executed.
  276. .then( () => {
  277. throw new Error( 'Test error: this promise should not be resolved successfully' );
  278. } )
  279. .catch( err => {
  280. assertCKEditorError( err, /^plugincollection-required/, editor );
  281. sinon.assert.calledTwice( consoleErrorStub );
  282. } );
  283. } );
  284. it( 'should reject when loading more than one plugin with the same name', () => {
  285. const plugins = new PluginCollection( editor );
  286. const consoleErrorStub = sinon.stub( console, 'error' );
  287. return plugins.init( [ PluginFoo, AnotherPluginFoo ] )
  288. .then( () => {
  289. throw new Error( 'The `init()` method should fail.' );
  290. } )
  291. .catch( err => {
  292. assertCKEditorError( err, /^plugincollection-plugin-name-conflict:/, null, {
  293. pluginName: 'Foo',
  294. plugin1: PluginFoo,
  295. plugin2: AnotherPluginFoo
  296. } );
  297. sinon.assert.calledOnce( consoleErrorStub );
  298. } );
  299. } );
  300. it( 'should reject when loading more than one plugin with the same name (plugin requires plugin with the same name)', () => {
  301. PluginFoo.requires = [ AnotherPluginFoo ];
  302. const plugins = new PluginCollection( editor );
  303. const consoleErrorStub = sinon.stub( console, 'error' );
  304. return plugins.init( [ PluginFoo ] )
  305. .then( () => {
  306. throw new Error( 'The `init()` method should fail.' );
  307. } )
  308. .catch( err => {
  309. assertCKEditorError( err, /^plugincollection-plugin-name-conflict:/, null );
  310. sinon.assert.calledOnce( consoleErrorStub );
  311. } );
  312. } );
  313. it( 'should reject when loading more than one plugin with the same name' +
  314. '(plugin with the same name is built-in the PluginCollection)', () => {
  315. availablePlugins = [ PluginFoo ];
  316. const plugins = new PluginCollection( editor, availablePlugins );
  317. const consoleErrorStub = sinon.stub( console, 'error' );
  318. return plugins.init( [ 'Foo', AnotherPluginFoo ] )
  319. .then( () => {
  320. throw new Error( 'The `init()` method should fail.' );
  321. } )
  322. .catch( err => {
  323. assertCKEditorError( err, /^plugincollection-plugin-name-conflict:/, null );
  324. sinon.assert.calledOnce( consoleErrorStub );
  325. } );
  326. } );
  327. } );
  328. describe( 'get()', () => {
  329. it( 'retrieves plugin by its constructor', () => {
  330. class SomePlugin extends Plugin {}
  331. availablePlugins.push( SomePlugin );
  332. const plugins = new PluginCollection( editor, availablePlugins );
  333. return plugins.init( [ SomePlugin ] )
  334. .then( () => {
  335. expect( plugins.get( SomePlugin ) ).to.be.instanceOf( SomePlugin );
  336. } );
  337. } );
  338. it( 'retrieves plugin by its name and constructor', () => {
  339. class SomePlugin extends Plugin {}
  340. SomePlugin.pluginName = 'foo/bar';
  341. availablePlugins.push( SomePlugin );
  342. const plugins = new PluginCollection( editor, availablePlugins );
  343. return plugins.init( [ SomePlugin ] )
  344. .then( () => {
  345. expect( plugins.get( 'foo/bar' ) ).to.be.instanceOf( SomePlugin );
  346. expect( plugins.get( SomePlugin ) ).to.be.instanceOf( SomePlugin );
  347. } );
  348. } );
  349. it( 'throws if plugin cannot be retrieved by name', () => {
  350. const plugins = new PluginCollection( editor, availablePlugins );
  351. return plugins.init( [] ).then( () => {
  352. expectToThrowCKEditorError( () => plugins.get( 'foo' ),
  353. /^plugincollection-plugin-not-loaded:/, editor, { plugin: 'foo' }
  354. );
  355. } );
  356. } );
  357. it( 'throws if plugin cannot be retrieved by class', () => {
  358. class SomePlugin extends Plugin {}
  359. SomePlugin.pluginName = 'foo';
  360. const plugins = new PluginCollection( editor, availablePlugins );
  361. return plugins.init( [] ).then( () => {
  362. expectToThrowCKEditorError( () => plugins.get( SomePlugin ),
  363. /^plugincollection-plugin-not-loaded:/, editor, { plugin: 'foo' } );
  364. } );
  365. } );
  366. it( 'throws if plugin cannot be retrieved by class (class name in error)', () => {
  367. class SomePlugin extends Plugin {}
  368. const plugins = new PluginCollection( editor, availablePlugins );
  369. return plugins.init( [] ).then( () => {
  370. expectToThrowCKEditorError( () => plugins.get( SomePlugin ),
  371. /^plugincollection-plugin-not-loaded:/,
  372. editor, { plugin: 'SomePlugin' }
  373. );
  374. } );
  375. } );
  376. } );
  377. describe( 'has()', () => {
  378. let plugins;
  379. beforeEach( () => {
  380. plugins = new PluginCollection( editor, availablePlugins );
  381. } );
  382. it( 'returns false if plugins is not loaded (retrieved by name)', () => {
  383. expect( plugins.has( 'foobar' ) ).to.be.false;
  384. } );
  385. it( 'returns false if plugins is not loaded (retrieved by class)', () => {
  386. class SomePlugin extends Plugin {
  387. }
  388. expect( plugins.has( SomePlugin ) ).to.be.false;
  389. } );
  390. it( 'returns true if plugins is loaded (retrieved by name)', () => {
  391. return plugins.init( [ PluginA ] ).then( () => {
  392. expect( plugins.has( 'A' ) ).to.be.true;
  393. } );
  394. } );
  395. it( 'returns true if plugins is loaded (retrieved by class)', () => {
  396. return plugins.init( [ PluginA ] ).then( () => {
  397. expect( plugins.has( PluginA ) ).to.be.true;
  398. } );
  399. } );
  400. } );
  401. describe( 'destroy()', () => {
  402. it( 'calls Plugin#destroy() method on every loaded plugin', () => {
  403. let destroySpyForPluginA, destroySpyForPluginB;
  404. const plugins = new PluginCollection( editor, [] );
  405. return plugins.init( [ PluginA, PluginB ] )
  406. .then( () => {
  407. destroySpyForPluginA = sinon.spy( plugins.get( PluginA ), 'destroy' );
  408. destroySpyForPluginB = sinon.spy( plugins.get( PluginB ), 'destroy' );
  409. return plugins.destroy();
  410. } )
  411. .then( () => {
  412. expect( destroySpyForPluginA.calledOnce ).to.equal( true );
  413. expect( destroySpyForPluginB.calledOnce ).to.equal( true );
  414. } );
  415. } );
  416. it( 'waits until all plugins are destroyed', () => {
  417. const destroyedPlugins = [];
  418. class AsynchronousPluginA extends Plugin {
  419. destroy() {
  420. return new Promise( resolve => {
  421. setTimeout( () => {
  422. super.destroy();
  423. destroyedPlugins.push( 'AsynchronousPluginA.destroy()' );
  424. resolve();
  425. } );
  426. } );
  427. }
  428. }
  429. class AsynchronousPluginB extends Plugin {
  430. destroy() {
  431. return new Promise( resolve => {
  432. setTimeout( () => {
  433. super.destroy();
  434. destroyedPlugins.push( 'AsynchronousPluginB.destroy()' );
  435. resolve();
  436. } );
  437. } );
  438. }
  439. }
  440. const plugins = new PluginCollection( editor, [] );
  441. return plugins.init( [ AsynchronousPluginA, AsynchronousPluginB ] )
  442. .then( () => plugins.destroy() )
  443. .then( () => {
  444. expect( destroyedPlugins ).to.contain( 'AsynchronousPluginB.destroy()' );
  445. expect( destroyedPlugins ).to.contain( 'AsynchronousPluginA.destroy()' );
  446. } );
  447. } );
  448. it( 'does not execute Plugin#destroy() for plugins which do not have this method', () => {
  449. class FooPlugin {
  450. constructor( editor ) {
  451. this.editor = editor;
  452. }
  453. }
  454. const plugins = new PluginCollection( editor, [] );
  455. return plugins.init( [ PluginA, FooPlugin ] )
  456. .then( () => plugins.destroy() )
  457. .then( destroyedPlugins => {
  458. expect( destroyedPlugins.length ).to.equal( 1 );
  459. } );
  460. } );
  461. } );
  462. describe( 'iterator', () => {
  463. it( 'exists', () => {
  464. const plugins = new PluginCollection( editor, availablePlugins );
  465. expect( plugins ).to.have.property( Symbol.iterator );
  466. } );
  467. it( 'returns only plugins by constructors', () => {
  468. class SomePlugin1 extends Plugin {}
  469. class SomePlugin2 extends Plugin {}
  470. SomePlugin2.pluginName = 'foo/bar';
  471. availablePlugins.push( SomePlugin1 );
  472. availablePlugins.push( SomePlugin2 );
  473. const plugins = new PluginCollection( editor, availablePlugins );
  474. return plugins.init( [ SomePlugin1, SomePlugin2 ] )
  475. .then( () => {
  476. const pluginConstructors = Array.from( plugins )
  477. .map( entry => entry[ 0 ] );
  478. expect( pluginConstructors ).to.have.members( [ SomePlugin1, SomePlugin2 ] );
  479. } );
  480. } );
  481. } );
  482. } );
  483. function createPlugin( name ) {
  484. const P = class extends Plugin {
  485. constructor( editor ) {
  486. super( editor );
  487. this.pluginName = name;
  488. }
  489. };
  490. P.pluginName = name;
  491. return P;
  492. }
  493. function getPlugins( pluginCollection ) {
  494. return Array.from( pluginCollection )
  495. .map( entry => entry[ 1 ] ); // Get instances.
  496. }
  497. function getPluginsFromSpy( addSpy ) {
  498. return addSpy.args
  499. .map( arg => arg[ 0 ] )
  500. // Entries may be kept twice in the plugins map - once as a pluginName => plugin, once as pluginClass => plugin.
  501. // Return only pluginClass => plugin entries as these will always represent all plugins.
  502. .filter( plugin => typeof plugin == 'function' );
  503. }
  504. function getPluginNames( plugins ) {
  505. return plugins.map( plugin => plugin.pluginName );
  506. }