How to use createAndRenderPreview method in storybook-root

Best JavaScript code snippet using storybook-root

PreviewWeb.test.ts

Source:PreviewWeb.test.ts Github

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...62async function waitForSetCurrentStory() {63 await new Promise((r) => setImmediate(r));64 jest.runAllTimers();65}66async function createAndRenderPreview({67 importFn: inputImportFn = importFn,68 getProjectAnnotations: inputGetProjectAnnotations = getProjectAnnotations,69}: {70 importFn?: ModuleImportFn;71 getProjectAnnotations?: () => WebProjectAnnotations<AnyFramework>;72} = {}) {73 const preview = new PreviewWeb();74 (75 preview.view.prepareForDocs as jest.MockedFunction<typeof preview.view.prepareForDocs>76 ).mockReturnValue('docs-element' as any);77 await preview.initialize({78 importFn: inputImportFn,79 getProjectAnnotations: inputGetProjectAnnotations,80 });81 await waitForRender();82 return preview;83}84beforeEach(() => {85 document.location.search = '';86 mockChannel.emit.mockClear();87 emitter.removeAllListeners();88 componentOneExports.default.loaders[0].mockReset().mockImplementation(async () => ({ l: 7 }));89 componentOneExports.default.parameters.docs.container.mockClear();90 componentOneExports.a.play.mockReset();91 projectAnnotations.renderToDOM.mockReset();92 projectAnnotations.render.mockClear();93 projectAnnotations.decorators[0].mockClear();94 // @ts-ignore95 ReactDOM.render.mockReset().mockImplementation((_: any, _2: any, cb: () => any) => cb());96 // @ts-ignore97 logger.warn.mockClear();98 mockStoryIndex.mockReset().mockReturnValue(storyIndex);99 addons.setChannel(mockChannel as any);100 addons.setServerChannel(createMockChannel());101 mockFetchResult = { status: 200, json: mockStoryIndex, text: () => 'error text' };102});103describe('PreviewWeb', () => {104 describe('initialize', () => {105 it('shows an error if getProjectAnnotations throws', async () => {106 const err = new Error('meta error');107 const preview = new PreviewWeb();108 await expect(109 preview.initialize({110 importFn,111 getProjectAnnotations: () => {112 throw err;113 },114 })115 ).rejects.toThrow(err);116 expect(preview.view.showErrorDisplay).toHaveBeenCalled();117 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CONFIG_ERROR, err);118 });119 it('shows an error if the stories.json endpoint 500s', async () => {120 const err = new Error('sort error');121 mockFetchResult = { status: 500, text: async () => err.toString() };122 const preview = new PreviewWeb();123 await expect(preview.initialize({ importFn, getProjectAnnotations })).rejects.toThrow(124 'sort error'125 );126 expect(preview.view.showErrorDisplay).toHaveBeenCalled();127 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CONFIG_ERROR, expect.any(Error));128 });129 it('sets globals from the URL', async () => {130 document.location.search = '?id=*&globals=a:c';131 const preview = await createAndRenderPreview();132 expect(preview.storyStore.globals.get()).toEqual({ a: 'c' });133 });134 it('emits the SET_GLOBALS event', async () => {135 await createAndRenderPreview();136 expect(mockChannel.emit).toHaveBeenCalledWith(Events.SET_GLOBALS, {137 globals: { a: 'b' },138 globalTypes: {},139 });140 });141 it('SET_GLOBALS sets globals and types even when undefined', async () => {142 await createAndRenderPreview({ getProjectAnnotations: () => ({ renderToDOM: jest.fn() }) });143 expect(mockChannel.emit).toHaveBeenCalledWith(Events.SET_GLOBALS, {144 globals: {},145 globalTypes: {},146 });147 });148 it('emits the SET_GLOBALS event from the URL', async () => {149 document.location.search = '?id=*&globals=a:c';150 await createAndRenderPreview();151 expect(mockChannel.emit).toHaveBeenCalledWith(Events.SET_GLOBALS, {152 globals: { a: 'c' },153 globalTypes: {},154 });155 });156 it('sets args from the URL', async () => {157 document.location.search = '?id=component-one--a&args=foo:url';158 const preview = await createAndRenderPreview();159 expect(preview.storyStore.args.get('component-one--a')).toEqual({160 foo: 'url',161 });162 });163 it('updates args from the URL', async () => {164 document.location.search = '?id=component-one--a&args=foo:url';165 await createAndRenderPreview();166 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {167 storyId: 'component-one--a',168 args: { foo: 'url' },169 });170 });171 it('allows async getProjectAnnotations', async () => {172 const preview = new PreviewWeb();173 await preview.initialize({174 importFn,175 getProjectAnnotations: async () => {176 return getProjectAnnotations();177 },178 });179 expect(preview.storyStore.globals.get()).toEqual({ a: 'b' });180 });181 });182 describe('initial selection', () => {183 it('selects the story specified in the URL', async () => {184 document.location.search = '?id=component-one--a';185 const preview = await createAndRenderPreview();186 expect(preview.urlStore.selection).toEqual({187 storyId: 'component-one--a',188 viewMode: 'story',189 });190 expect(history.replaceState).toHaveBeenCalledWith(191 {},192 '',193 'pathname?id=component-one--a&viewMode=story'194 );195 });196 it('emits the STORY_SPECIFIED event', async () => {197 document.location.search = '?id=component-one--a';198 await createAndRenderPreview();199 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_SPECIFIED, {200 storyId: 'component-one--a',201 viewMode: 'story',202 });203 });204 it('emits the CURRENT_STORY_WAS_SET event', async () => {205 document.location.search = '?id=component-one--a';206 await createAndRenderPreview();207 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CURRENT_STORY_WAS_SET, {208 storyId: 'component-one--a',209 viewMode: 'story',210 });211 });212 describe('if the story specified does not exist', () => {213 it('renders a loading error', async () => {214 document.location.search = '?id=random';215 const preview = await createAndRenderPreview();216 expect(preview.view.showErrorDisplay).toHaveBeenCalled();217 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING, 'random');218 });219 it('tries again with a specifier if CSF file changes', async () => {220 document.location.search = '?id=component-one--d';221 const preview = await createAndRenderPreview();222 expect(preview.view.showErrorDisplay).toHaveBeenCalled();223 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING, 'component-one--d');224 mockChannel.emit.mockClear();225 const newComponentOneExports = merge({}, componentOneExports, {226 d: { args: { foo: 'd' }, play: jest.fn() },227 });228 const newImportFn = jest.fn(async (path) => {229 return path === './src/ComponentOne.stories.js'230 ? newComponentOneExports231 : componentTwoExports;232 });233 preview.onStoriesChanged({234 importFn: newImportFn,235 storyIndex: {236 v: 3,237 stories: {238 ...storyIndex.stories,239 'component-one--d': {240 id: 'component-one--d',241 title: 'Component One',242 name: 'D',243 importPath: './src/ComponentOne.stories.js',244 },245 },246 },247 });248 await waitForRender();249 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_SPECIFIED, {250 storyId: 'component-one--d',251 viewMode: 'story',252 });253 });254 describe('after selection changes', () => {255 beforeEach(() => jest.useFakeTimers());256 afterEach(() => jest.useRealTimers());257 it('DOES NOT try again if CSF file changes', async () => {258 document.location.search = '?id=component-one--d';259 const preview = await createAndRenderPreview();260 expect(preview.view.showErrorDisplay).toHaveBeenCalled();261 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING, 'component-one--d');262 emitter.emit(Events.SET_CURRENT_STORY, {263 storyId: 'component-one--b',264 viewMode: 'story',265 });266 await waitForSetCurrentStory();267 const newComponentOneExports = merge({}, componentOneExports, {268 d: { args: { foo: 'd' }, play: jest.fn() },269 });270 const newImportFn = jest.fn(async (path) => {271 return path === './src/ComponentOne.stories.js'272 ? newComponentOneExports273 : componentTwoExports;274 });275 preview.onStoriesChanged({276 importFn: newImportFn,277 storyIndex: {278 v: 3,279 stories: {280 ...storyIndex.stories,281 'component-one--d': {282 id: 'component-one--d',283 title: 'Component One',284 name: 'D',285 importPath: './src/ComponentOne.stories.js',286 },287 },288 },289 });290 expect(mockChannel.emit).not.toHaveBeenCalledWith(Events.STORY_SPECIFIED, {291 storyId: 'component-one--d',292 viewMode: 'story',293 });294 });295 });296 });297 it('renders missing if no selection', async () => {298 const preview = await createAndRenderPreview();299 expect(preview.view.showNoPreview).toHaveBeenCalled();300 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING);301 });302 describe('in story viewMode', () => {303 it('calls view.prepareForStory', async () => {304 document.location.search = '?id=component-one--a';305 const preview = await createAndRenderPreview();306 expect(preview.view.prepareForStory).toHaveBeenCalledWith(307 expect.objectContaining({308 id: 'component-one--a',309 })310 );311 });312 it('emits STORY_PREPARED', async () => {313 document.location.search = '?id=component-one--a';314 await createAndRenderPreview();315 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_PREPARED, {316 id: 'component-one--a',317 parameters: {318 __isArgsStory: false,319 docs: { container: expect.any(Function) },320 fileName: './src/ComponentOne.stories.js',321 },322 initialArgs: { foo: 'a' },323 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },324 args: { foo: 'a' },325 });326 });327 it('applies loaders with story context', async () => {328 document.location.search = '?id=component-one--a';329 await createAndRenderPreview();330 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(331 expect.objectContaining({332 id: 'component-one--a',333 parameters: {334 __isArgsStory: false,335 docs: { container: expect.any(Function) },336 fileName: './src/ComponentOne.stories.js',337 },338 initialArgs: { foo: 'a' },339 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },340 args: { foo: 'a' },341 })342 );343 });344 it('passes loaded context to renderToDOM', async () => {345 document.location.search = '?id=component-one--a';346 await createAndRenderPreview();347 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(348 expect.objectContaining({349 forceRemount: true,350 storyContext: expect.objectContaining({351 id: 'component-one--a',352 parameters: {353 __isArgsStory: false,354 docs: { container: expect.any(Function) },355 fileName: './src/ComponentOne.stories.js',356 },357 globals: { a: 'b' },358 initialArgs: { foo: 'a' },359 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },360 args: { foo: 'a' },361 loaded: { l: 7 },362 }),363 }),364 undefined // this is coming from view.prepareForStory, not super important365 );366 });367 it('renders exception if a loader throws', async () => {368 const error = new Error('error');369 componentOneExports.default.loaders[0].mockImplementationOnce(() => {370 throw error;371 });372 document.location.search = '?id=component-one--a';373 const preview = await createAndRenderPreview();374 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);375 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);376 });377 it('renders exception if renderToDOM throws', async () => {378 const error = new Error('error');379 projectAnnotations.renderToDOM.mockImplementationOnce(() => {380 throw error;381 });382 document.location.search = '?id=component-one--a';383 const preview = await createAndRenderPreview();384 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);385 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);386 });387 it('renders helpful message if renderToDOM is undefined', async () => {388 const originalRenderToDOM = projectAnnotations.renderToDOM;389 try {390 projectAnnotations.renderToDOM = undefined;391 document.location.search = '?id=component-one--a';392 const preview = new PreviewWeb();393 await expect(preview.initialize({ importFn, getProjectAnnotations })).rejects.toThrow();394 expect(preview.view.showErrorDisplay).toHaveBeenCalled();395 expect((preview.view.showErrorDisplay as jest.Mock).mock.calls[0][0])396 .toMatchInlineSnapshot(`397 [Error: Expected your framework's preset to export a \`renderToDOM\` field.398 Perhaps it needs to be upgraded for Storybook 6.4?399 More info: https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#mainjs-framework-field ]400 `);401 } finally {402 projectAnnotations.renderToDOM = originalRenderToDOM;403 }404 });405 it('renders exception if the play function throws', async () => {406 const error = new Error('error');407 componentOneExports.a.play.mockImplementationOnce(() => {408 throw error;409 });410 document.location.search = '?id=component-one--a';411 const preview = await createAndRenderPreview();412 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);413 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);414 });415 it('renders error if the story calls showError', async () => {416 const error = { title: 'title', description: 'description' };417 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>418 context.showError(error)419 );420 document.location.search = '?id=component-one--a';421 const preview = await createAndRenderPreview();422 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ERRORED, error);423 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith({424 message: error.title,425 stack: error.description,426 });427 });428 it('renders exception if the story calls showException', async () => {429 const error = new Error('error');430 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>431 context.showException(error)432 );433 document.location.search = '?id=component-one--a';434 const preview = await createAndRenderPreview();435 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);436 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);437 });438 it('executes playFunction', async () => {439 document.location.search = '?id=component-one--a';440 await createAndRenderPreview();441 expect(componentOneExports.a.play).toHaveBeenCalled();442 });443 it('emits STORY_RENDERED', async () => {444 document.location.search = '?id=component-one--a';445 await createAndRenderPreview();446 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');447 });448 it('does not show error display if the render function throws IGNORED_EXCEPTION', async () => {449 document.location.search = '?id=component-one--a';450 projectAnnotations.renderToDOM.mockImplementationOnce(() => {451 throw IGNORED_EXCEPTION;452 });453 const preview = new PreviewWeb();454 await preview.initialize({ importFn, getProjectAnnotations });455 await waitForRender();456 expect(mockChannel.emit).toHaveBeenCalledWith(457 Events.STORY_THREW_EXCEPTION,458 IGNORED_EXCEPTION459 );460 expect(preview.view.showErrorDisplay).not.toHaveBeenCalled();461 });462 });463 describe('in docs viewMode', () => {464 it('calls view.prepareForDocs', async () => {465 document.location.search = '?id=component-one--a&viewMode=docs';466 const preview = await createAndRenderPreview();467 expect(preview.view.prepareForDocs).toHaveBeenCalled();468 });469 it('emits STORY_PREPARED', async () => {470 document.location.search = '?id=component-one--a&viewMode=docs';471 await createAndRenderPreview();472 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_PREPARED, {473 id: 'component-one--a',474 parameters: {475 __isArgsStory: false,476 docs: { container: expect.any(Function) },477 fileName: './src/ComponentOne.stories.js',478 },479 initialArgs: { foo: 'a' },480 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },481 args: { foo: 'a' },482 });483 });484 it('render the docs container with the correct context', async () => {485 document.location.search = '?id=component-one--a&viewMode=docs';486 await createAndRenderPreview();487 expect(ReactDOM.render).toHaveBeenCalledWith(488 expect.objectContaining({489 type: componentOneExports.default.parameters.docs.container,490 props: expect.objectContaining({491 context: expect.objectContaining({492 id: 'component-one--a',493 title: 'Component One',494 name: 'A',495 }),496 }),497 }),498 'docs-element',499 expect.any(Function)500 );501 });502 it('emits DOCS_RENDERED', async () => {503 document.location.search = '?id=component-one--a&viewMode=docs';504 await createAndRenderPreview();505 expect(mockChannel.emit).toHaveBeenCalledWith(Events.DOCS_RENDERED, 'component-one--a');506 });507 });508 });509 describe('onUpdateGlobals', () => {510 it('emits GLOBALS_UPDATED', async () => {511 document.location.search = '?id=component-one--a';512 await createAndRenderPreview();513 emitter.emit(Events.UPDATE_GLOBALS, { globals: { foo: 'bar' } });514 await waitForEvents([Events.GLOBALS_UPDATED]);515 expect(mockChannel.emit).toHaveBeenCalledWith(Events.GLOBALS_UPDATED, {516 globals: { a: 'b', foo: 'bar' },517 initialGlobals: { a: 'b' },518 });519 });520 it('sets new globals on the store', async () => {521 document.location.search = '?id=component-one--a';522 const preview = await createAndRenderPreview();523 emitter.emit(Events.UPDATE_GLOBALS, { globals: { foo: 'bar' } });524 expect(preview.storyStore.globals.get()).toEqual({ a: 'b', foo: 'bar' });525 });526 it('passes new globals in context to renderToDOM', async () => {527 document.location.search = '?id=component-one--a';528 const preview = await createAndRenderPreview();529 mockChannel.emit.mockClear();530 projectAnnotations.renderToDOM.mockClear();531 emitter.emit(Events.UPDATE_GLOBALS, { globals: { foo: 'bar' } });532 await waitForRender();533 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(534 expect.objectContaining({535 forceRemount: false,536 storyContext: expect.objectContaining({537 globals: { a: 'b', foo: 'bar' },538 }),539 }),540 undefined // this is coming from view.prepareForStory, not super important541 );542 });543 it('emits STORY_RENDERED', async () => {544 document.location.search = '?id=component-one--a';545 await createAndRenderPreview();546 mockChannel.emit.mockClear();547 emitter.emit(Events.UPDATE_GLOBALS, { globals: { foo: 'bar' } });548 await waitForRender();549 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');550 });551 describe('in docs mode', () => {552 it('re-renders the docs container', async () => {553 document.location.search = '?id=component-one--a&viewMode=docs';554 await createAndRenderPreview();555 mockChannel.emit.mockClear();556 emitter.emit(Events.UPDATE_GLOBALS, { globals: { foo: 'bar' } });557 await waitForRender();558 expect(ReactDOM.render).toHaveBeenCalledTimes(2);559 });560 });561 });562 describe('onUpdateArgs', () => {563 it('emits STORY_ARGS_UPDATED', async () => {564 document.location.search = '?id=component-one--a';565 await createAndRenderPreview();566 emitter.emit(Events.UPDATE_STORY_ARGS, {567 storyId: 'component-one--a',568 updatedArgs: { new: 'arg' },569 });570 await waitForEvents([Events.STORY_ARGS_UPDATED]);571 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {572 storyId: 'component-one--a',573 args: { foo: 'a', new: 'arg' },574 });575 });576 it('sets new args on the store', async () => {577 document.location.search = '?id=component-one--a';578 const preview = await createAndRenderPreview();579 emitter.emit(Events.UPDATE_STORY_ARGS, {580 storyId: 'component-one--a',581 updatedArgs: { new: 'arg' },582 });583 expect(preview.storyStore.args.get('component-one--a')).toEqual({584 foo: 'a',585 new: 'arg',586 });587 });588 it('passes new args in context to renderToDOM', async () => {589 document.location.search = '?id=component-one--a';590 await createAndRenderPreview();591 mockChannel.emit.mockClear();592 projectAnnotations.renderToDOM.mockClear();593 emitter.emit(Events.UPDATE_STORY_ARGS, {594 storyId: 'component-one--a',595 updatedArgs: { new: 'arg' },596 });597 await waitForRender();598 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(599 expect.objectContaining({600 forceRemount: false,601 storyContext: expect.objectContaining({602 initialArgs: { foo: 'a' },603 args: { foo: 'a', new: 'arg' },604 }),605 }),606 undefined // this is coming from view.prepareForStory, not super important607 );608 });609 it('emits STORY_RENDERED', async () => {610 document.location.search = '?id=component-one--a';611 await createAndRenderPreview();612 mockChannel.emit.mockClear();613 emitter.emit(Events.UPDATE_STORY_ARGS, {614 storyId: 'component-one--a',615 updatedArgs: { new: 'arg' },616 });617 await waitForRender();618 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');619 });620 describe('while story is still rendering', () => {621 it('runs loaders again', async () => {622 const [gate, openGate] = createGate();623 document.location.search = '?id=component-one--a';624 componentOneExports.default.loaders[0].mockImplementationOnce(async () => gate);625 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });626 await waitForRenderPhase('loading');627 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(628 expect.objectContaining({629 args: { foo: 'a' },630 })631 );632 componentOneExports.default.loaders[0].mockClear();633 emitter.emit(Events.UPDATE_STORY_ARGS, {634 storyId: 'component-one--a',635 updatedArgs: { new: 'arg' },636 });637 await waitForRender();638 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(639 expect.objectContaining({640 args: { foo: 'a', new: 'arg' },641 })642 );643 // Story gets rendered with updated args644 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(1);645 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(646 expect.objectContaining({647 forceRemount: true, // Wasn't yet rendered so we need to force remount648 storyContext: expect.objectContaining({649 loaded: { l: 7 }, // This is the value returned by the *second* loader call650 args: { foo: 'a', new: 'arg' },651 }),652 }),653 undefined // this is coming from view.prepareForStory, not super important654 );655 // Now let the first loader call resolve656 mockChannel.emit.mockClear();657 projectAnnotations.renderToDOM.mockClear();658 openGate({ l: 8 });659 await waitForRender();660 // Now the first call comes through, but picks up the new args661 // Note this isn't a particularly realistic case (the second loader being quicker than the first)662 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(1);663 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(664 expect.objectContaining({665 storyContext: expect.objectContaining({666 loaded: { l: 8 },667 args: { foo: 'a', new: 'arg' },668 }),669 }),670 undefined // this is coming from view.prepareForStory, not super important671 );672 });673 it('renders a second time if renderToDOM is running', async () => {674 const [gate, openGate] = createGate();675 document.location.search = '?id=component-one--a';676 projectAnnotations.renderToDOM.mockImplementationOnce(async () => gate);677 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });678 await waitForRenderPhase('rendering');679 emitter.emit(Events.UPDATE_STORY_ARGS, {680 storyId: 'component-one--a',681 updatedArgs: { new: 'arg' },682 });683 // Now let the renderToDOM call resolve684 openGate();685 await waitForRender();686 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(2);687 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(688 expect.objectContaining({689 forceRemount: true,690 storyContext: expect.objectContaining({691 loaded: { l: 7 },692 args: { foo: 'a' },693 }),694 }),695 undefined // this is coming from view.prepareForStory, not super important696 );697 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(698 expect.objectContaining({699 forceRemount: false,700 storyContext: expect.objectContaining({701 loaded: { l: 7 },702 args: { foo: 'a', new: 'arg' },703 }),704 }),705 undefined // this is coming from view.prepareForStory, not super important706 );707 });708 it('works if it is called directly from inside non async renderToDOM', async () => {709 document.location.search = '?id=component-one--a';710 projectAnnotations.renderToDOM.mockImplementationOnce(() => {711 emitter.emit(Events.UPDATE_STORY_ARGS, {712 storyId: 'component-one--a',713 updatedArgs: { new: 'arg' },714 });715 });716 await createAndRenderPreview();717 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(2);718 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(719 expect.objectContaining({720 forceRemount: true,721 storyContext: expect.objectContaining({722 loaded: { l: 7 },723 args: { foo: 'a' },724 }),725 }),726 undefined // this is coming from view.prepareForStory, not super important727 );728 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(729 expect.objectContaining({730 forceRemount: false,731 storyContext: expect.objectContaining({732 loaded: { l: 7 },733 args: { foo: 'a', new: 'arg' },734 }),735 }),736 undefined // this is coming from view.prepareForStory, not super important737 );738 });739 it('calls renderToDOM again if play function is running', async () => {740 const [gate, openGate] = createGate();741 componentOneExports.a.play.mockImplementationOnce(async () => gate);742 const renderToDOMCalled = new Promise((resolve) => {743 projectAnnotations.renderToDOM.mockImplementationOnce(() => {744 resolve(null);745 });746 });747 document.location.search = '?id=component-one--a';748 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });749 await waitForRenderPhase('playing');750 await renderToDOMCalled;751 // Story gets rendered with original args752 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(753 expect.objectContaining({754 forceRemount: true,755 storyContext: expect.objectContaining({756 loaded: { l: 7 },757 args: { foo: 'a' },758 }),759 }),760 undefined // this is coming from view.prepareForStory, not super important761 );762 emitter.emit(Events.UPDATE_STORY_ARGS, {763 storyId: 'component-one--a',764 updatedArgs: { new: 'arg' },765 });766 // The second call should emit STORY_RENDERED767 await waitForRender();768 // Story gets rendered with updated args769 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(770 expect.objectContaining({771 forceRemount: false,772 storyContext: expect.objectContaining({773 loaded: { l: 7 },774 args: { foo: 'a', new: 'arg' },775 }),776 }),777 undefined // this is coming from view.prepareForStory, not super important778 );779 // Now let the playFunction call resolve780 openGate();781 });782 });783 describe('in docs mode, old inline render', () => {784 it('re-renders the docs container', async () => {785 document.location.search = '?id=component-one--a&viewMode=docs';786 await createAndRenderPreview();787 (ReactDOM.render as jest.MockedFunction<typeof ReactDOM.render>).mockClear();788 mockChannel.emit.mockClear();789 emitter.emit(Events.UPDATE_STORY_ARGS, {790 storyId: 'component-one--a',791 updatedArgs: { new: 'arg' },792 });793 await waitForRender();794 expect(ReactDOM.render).toHaveBeenCalledTimes(1);795 });796 });797 describe('in docs mode, modern inline render', () => {798 beforeEach(() => {799 global.FEATURES.modernInlineRender = true;800 });801 afterEach(() => {802 global.FEATURES.modernInlineRender = true;803 });804 it('does not re-render the docs container', async () => {805 document.location.search = '?id=component-one--a&viewMode=docs';806 await createAndRenderPreview();807 (ReactDOM.render as jest.MockedFunction<typeof ReactDOM.render>).mockClear();808 mockChannel.emit.mockClear();809 emitter.emit(Events.UPDATE_STORY_ARGS, {810 storyId: 'component-one--a',811 updatedArgs: { new: 'arg' },812 });813 await waitForEvents([Events.STORY_ARGS_UPDATED]);814 expect(ReactDOM.render).not.toHaveBeenCalled();815 });816 describe('when renderStoryToElement was called', () => {817 it('re-renders the story', async () => {818 document.location.search = '?id=component-one--a&viewMode=docs';819 const preview = await createAndRenderPreview();820 await waitForRender();821 mockChannel.emit.mockClear();822 const story = await preview.storyStore.loadStory({ storyId: 'component-one--a' });823 preview.renderStoryToElement(story, 'story-element' as any);824 await waitForRender();825 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(826 expect.objectContaining({827 storyContext: expect.objectContaining({828 args: { foo: 'a' },829 }),830 }),831 'story-element'832 );833 (ReactDOM.render as jest.MockedFunction<typeof ReactDOM.render>).mockClear();834 mockChannel.emit.mockClear();835 emitter.emit(Events.UPDATE_STORY_ARGS, {836 storyId: 'component-one--a',837 updatedArgs: { new: 'arg' },838 });839 await waitForRender();840 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(841 expect.objectContaining({842 storyContext: expect.objectContaining({843 args: { foo: 'a', new: 'arg' },844 }),845 }),846 'story-element'847 );848 });849 });850 });851 });852 describe('onResetArgs', () => {853 it('emits STORY_ARGS_UPDATED', async () => {854 document.location.search = '?id=component-one--a';855 await createAndRenderPreview();856 mockChannel.emit.mockClear();857 emitter.emit(Events.UPDATE_STORY_ARGS, {858 storyId: 'component-one--a',859 updatedArgs: { foo: 'new' },860 });861 await waitForEvents([Events.STORY_ARGS_UPDATED]);862 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {863 storyId: 'component-one--a',864 args: { foo: 'new' },865 });866 mockChannel.emit.mockClear();867 emitter.emit(Events.RESET_STORY_ARGS, {868 storyId: 'component-one--a',869 argNames: ['foo'],870 });871 await waitForEvents([Events.STORY_ARGS_UPDATED]);872 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {873 storyId: 'component-one--a',874 args: { foo: 'a' },875 });876 });877 it('resets a single arg', async () => {878 document.location.search = '?id=component-one--a';879 await createAndRenderPreview();880 mockChannel.emit.mockClear();881 emitter.emit(Events.UPDATE_STORY_ARGS, {882 storyId: 'component-one--a',883 updatedArgs: { foo: 'new', new: 'value' },884 });885 await waitForEvents([Events.STORY_ARGS_UPDATED]);886 mockChannel.emit.mockClear();887 emitter.emit(Events.RESET_STORY_ARGS, {888 storyId: 'component-one--a',889 argNames: ['foo'],890 });891 await waitForRender();892 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(893 expect.objectContaining({894 forceRemount: false,895 storyContext: expect.objectContaining({896 initialArgs: { foo: 'a' },897 args: { foo: 'a', new: 'value' },898 }),899 }),900 undefined // this is coming from view.prepareForStory, not super important901 );902 await waitForEvents([Events.STORY_ARGS_UPDATED]);903 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {904 storyId: 'component-one--a',905 args: { foo: 'a', new: 'value' },906 });907 });908 it('resets all args', async () => {909 document.location.search = '?id=component-one--a';910 await createAndRenderPreview();911 emitter.emit(Events.UPDATE_STORY_ARGS, {912 storyId: 'component-one--a',913 updatedArgs: { foo: 'new', new: 'value' },914 });915 await waitForEvents([Events.STORY_ARGS_UPDATED]);916 mockChannel.emit.mockClear();917 emitter.emit(Events.RESET_STORY_ARGS, {918 storyId: 'component-one--a',919 });920 await waitForRender();921 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(922 expect.objectContaining({923 forceRemount: false,924 storyContext: expect.objectContaining({925 initialArgs: { foo: 'a' },926 args: { foo: 'a' },927 }),928 }),929 undefined // this is coming from view.prepareForStory, not super important930 );931 await waitForEvents([Events.STORY_ARGS_UPDATED]);932 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {933 storyId: 'component-one--a',934 args: { foo: 'a' },935 });936 });937 });938 describe('on FORCE_RE_RENDER', () => {939 it('rerenders the story with the same args', async () => {940 document.location.search = '?id=component-one--a';941 await createAndRenderPreview();942 mockChannel.emit.mockClear();943 projectAnnotations.renderToDOM.mockClear();944 emitter.emit(Events.FORCE_RE_RENDER);945 await waitForRender();946 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(947 expect.objectContaining({ forceRemount: false }),948 undefined // this is coming from view.prepareForStory, not super important949 );950 });951 });952 describe('on FORCE_REMOUNT', () => {953 beforeEach(() => {954 jest.useFakeTimers();955 });956 afterEach(() => {957 jest.useRealTimers();958 });959 it('remounts the story with the same args', async () => {960 document.location.search = '?id=component-one--a';961 await createAndRenderPreview();962 mockChannel.emit.mockClear();963 projectAnnotations.renderToDOM.mockClear();964 emitter.emit(Events.FORCE_REMOUNT, { storyId: 'component-one--a' });965 await waitForRender();966 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(967 expect.objectContaining({ forceRemount: true }),968 undefined // this is coming from view.prepareForStory, not super important969 );970 });971 it('aborts render function for initial story', async () => {972 const [gate, openGate] = createGate();973 document.location.search = '?id=component-one--a';974 projectAnnotations.renderToDOM.mockImplementationOnce(async () => gate);975 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });976 await waitForRenderPhase('rendering');977 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(978 expect.objectContaining({979 forceRemount: true,980 storyContext: expect.objectContaining({981 id: 'component-one--a',982 loaded: { l: 7 },983 }),984 }),985 undefined // this is coming from view.prepareForStory, not super important986 );987 mockChannel.emit.mockClear();988 emitter.emit(Events.FORCE_REMOUNT, { storyId: 'component-one--a' });989 await waitForSetCurrentStory();990 // Now let the renderToDOM call resolve991 openGate();992 await waitForRenderPhase('aborted');993 await waitForSetCurrentStory();994 await waitForRenderPhase('rendering');995 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(2);996 await waitForRenderPhase('playing');997 expect(componentOneExports.a.play).toHaveBeenCalledTimes(1);998 await waitForRenderPhase('completed');999 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');1000 await waitForQuiescence();1001 });1002 });1003 describe('onSetCurrentStory', () => {1004 beforeEach(() => {1005 jest.useFakeTimers();1006 });1007 afterEach(() => {1008 jest.useRealTimers();1009 });1010 it('updates URL', async () => {1011 document.location.search = '?id=component-one--a';1012 await createAndRenderPreview();1013 emitter.emit(Events.SET_CURRENT_STORY, {1014 storyId: 'component-one--b',1015 viewMode: 'story',1016 });1017 await waitForSetCurrentStory();1018 expect(history.replaceState).toHaveBeenCalledWith(1019 {},1020 '',1021 'pathname?id=component-one--b&viewMode=story'1022 );1023 });1024 it('emits CURRENT_STORY_WAS_SET', async () => {1025 document.location.search = '?id=component-one--a';1026 await createAndRenderPreview();1027 emitter.emit(Events.SET_CURRENT_STORY, {1028 storyId: 'component-one--b',1029 viewMode: 'story',1030 });1031 await waitForSetCurrentStory();1032 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CURRENT_STORY_WAS_SET, {1033 storyId: 'component-one--b',1034 viewMode: 'story',1035 });1036 });1037 it('renders loading error if the story specified does not exist', async () => {1038 document.location.search = '?id=component-one--a';1039 const preview = await createAndRenderPreview();1040 emitter.emit(Events.SET_CURRENT_STORY, {1041 storyId: 'random',1042 viewMode: 'story',1043 });1044 await waitForSetCurrentStory();1045 await waitForEvents([Events.STORY_MISSING]);1046 expect(preview.view.showErrorDisplay).toHaveBeenCalled();1047 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING, 'random');1048 });1049 describe('if called before the preview is initialized', () => {1050 it('still renders the selected story, once ready', async () => {1051 document.location.search = '';1052 // We intentionally are *not* awaiting here1053 new PreviewWeb().initialize({ importFn, getProjectAnnotations });1054 emitter.emit(Events.SET_CURRENT_STORY, {1055 storyId: 'component-one--b',1056 viewMode: 'story',1057 });1058 await waitForEvents([Events.STORY_RENDERED]);1059 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CURRENT_STORY_WAS_SET, {1060 storyId: 'component-one--b',1061 viewMode: 'story',1062 });1063 expect(history.replaceState).toHaveBeenCalledWith(1064 {},1065 '',1066 'pathname?id=component-one--b&viewMode=story'1067 );1068 expect(mockChannel.emit).not.toHaveBeenCalledWith(Events.STORY_MISSING, 'component-one--b');1069 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--b');1070 });1071 });1072 describe('if the selection is unchanged', () => {1073 it('emits STORY_UNCHANGED', async () => {1074 document.location.search = '?id=component-one--a';1075 await createAndRenderPreview();1076 emitter.emit(Events.SET_CURRENT_STORY, {1077 storyId: 'component-one--a',1078 viewMode: 'story',1079 });1080 await waitForSetCurrentStory();1081 await waitForEvents([Events.STORY_UNCHANGED]);1082 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_UNCHANGED, 'component-one--a');1083 });1084 it('does NOT call renderToDOM', async () => {1085 document.location.search = '?id=component-one--a';1086 await createAndRenderPreview();1087 projectAnnotations.renderToDOM.mockClear();1088 emitter.emit(Events.SET_CURRENT_STORY, {1089 storyId: 'component-one--a',1090 viewMode: 'story',1091 });1092 await waitForSetCurrentStory();1093 // The renderToDOM would have been async so we need to wait a tick.1094 await waitForQuiescence();1095 expect(projectAnnotations.renderToDOM).not.toHaveBeenCalled();1096 });1097 // For https://github.com/storybookjs/storybook/issues/172141098 it('does NOT render a second time if preparing', async () => {1099 document.location.search = '?id=component-one--a';1100 const [gate, openGate] = createGate();1101 const [importedGate, openImportedGate] = createGate();1102 importFn1103 .mockImplementationOnce(async (...args) => {1104 await gate;1105 return importFn(...args);1106 })1107 .mockImplementationOnce(async (...args) => {1108 // The second time we `import()` we open the "imported" gate1109 openImportedGate();1110 await gate;1111 return importFn(...args);1112 });1113 const preview = new PreviewWeb();1114 // We can't wait for the initialize function, as it waits for `renderSelection()`1115 // which prepares, but it does emit `CURRENT_STORY_WAS_SET` right before that1116 preview.initialize({ importFn, getProjectAnnotations });1117 await waitForEvents([Events.CURRENT_STORY_WAS_SET]);1118 mockChannel.emit.mockClear();1119 projectAnnotations.renderToDOM.mockClear();1120 emitter.emit(Events.SET_CURRENT_STORY, {1121 storyId: 'component-one--a',1122 viewMode: 'story',1123 });1124 await importedGate;1125 // We are blocking import so this won't render yet1126 expect(projectAnnotations.renderToDOM).not.toHaveBeenCalled();1127 mockChannel.emit.mockClear();1128 openGate();1129 await waitForRender();1130 // We should only render *once*1131 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(1);1132 // We should not show an error either1133 expect(preview.view.showErrorDisplay).not.toHaveBeenCalled();1134 });1135 });1136 describe('when changing story in story viewMode', () => {1137 it('updates URL', async () => {1138 document.location.search = '?id=component-one--a';1139 await createAndRenderPreview();1140 emitter.emit(Events.SET_CURRENT_STORY, {1141 storyId: 'component-one--b',1142 viewMode: 'story',1143 });1144 await waitForSetCurrentStory();1145 expect(history.replaceState).toHaveBeenCalledWith(1146 {},1147 '',1148 'pathname?id=component-one--b&viewMode=story'1149 );1150 });1151 it('renders preparing state', async () => {1152 document.location.search = '?id=component-one--a';1153 const preview = await createAndRenderPreview();1154 emitter.emit(Events.SET_CURRENT_STORY, {1155 storyId: 'component-one--b',1156 viewMode: 'story',1157 });1158 await waitForSetCurrentStory();1159 expect(preview.view.showPreparingStory).toHaveBeenCalled();1160 });1161 it('emits STORY_CHANGED', async () => {1162 document.location.search = '?id=component-one--a';1163 await createAndRenderPreview();1164 mockChannel.emit.mockClear();1165 emitter.emit(Events.SET_CURRENT_STORY, {1166 storyId: 'component-one--b',1167 viewMode: 'story',1168 });1169 await waitForSetCurrentStory();1170 await waitForEvents([Events.STORY_CHANGED]);1171 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--b');1172 });1173 it('emits STORY_PREPARED', async () => {1174 document.location.search = '?id=component-one--a';1175 await createAndRenderPreview();1176 mockChannel.emit.mockClear();1177 emitter.emit(Events.SET_CURRENT_STORY, {1178 storyId: 'component-one--b',1179 viewMode: 'story',1180 });1181 await waitForSetCurrentStory();1182 await waitForEvents([Events.STORY_PREPARED]);1183 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_PREPARED, {1184 id: 'component-one--b',1185 parameters: {1186 __isArgsStory: false,1187 docs: { container: expect.any(Function) },1188 fileName: './src/ComponentOne.stories.js',1189 },1190 initialArgs: { foo: 'b' },1191 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1192 args: { foo: 'b' },1193 });1194 });1195 it('applies loaders with story context', async () => {1196 document.location.search = '?id=component-one--a';1197 await createAndRenderPreview();1198 mockChannel.emit.mockClear();1199 emitter.emit(Events.SET_CURRENT_STORY, {1200 storyId: 'component-one--b',1201 viewMode: 'story',1202 });1203 await waitForSetCurrentStory();1204 await waitForRender();1205 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(1206 expect.objectContaining({1207 id: 'component-one--b',1208 parameters: {1209 __isArgsStory: false,1210 docs: { container: expect.any(Function) },1211 fileName: './src/ComponentOne.stories.js',1212 },1213 initialArgs: { foo: 'b' },1214 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1215 args: { foo: 'b' },1216 })1217 );1218 });1219 it('passes loaded context to renderToDOM', async () => {1220 document.location.search = '?id=component-one--a';1221 await createAndRenderPreview();1222 mockChannel.emit.mockClear();1223 emitter.emit(Events.SET_CURRENT_STORY, {1224 storyId: 'component-one--b',1225 viewMode: 'story',1226 });1227 await waitForSetCurrentStory();1228 await waitForRender();1229 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1230 expect.objectContaining({1231 forceRemount: true,1232 storyContext: expect.objectContaining({1233 id: 'component-one--b',1234 parameters: {1235 __isArgsStory: false,1236 docs: { container: expect.any(Function) },1237 fileName: './src/ComponentOne.stories.js',1238 },1239 globals: { a: 'b' },1240 initialArgs: { foo: 'b' },1241 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1242 args: { foo: 'b' },1243 loaded: { l: 7 },1244 }),1245 }),1246 undefined // this is coming from view.prepareForStory, not super important1247 );1248 });1249 it('renders exception if renderToDOM throws', async () => {1250 document.location.search = '?id=component-one--a';1251 const preview = await createAndRenderPreview();1252 const error = new Error('error');1253 projectAnnotations.renderToDOM.mockImplementationOnce(() => {1254 throw error;1255 });1256 mockChannel.emit.mockClear();1257 emitter.emit(Events.SET_CURRENT_STORY, {1258 storyId: 'component-one--b',1259 viewMode: 'story',1260 });1261 await waitForSetCurrentStory();1262 await waitForRender();1263 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);1264 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);1265 });1266 it('renders error if the story calls showError', async () => {1267 document.location.search = '?id=component-one--a';1268 const preview = await createAndRenderPreview();1269 const error = { title: 'title', description: 'description' };1270 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>1271 context.showError(error)1272 );1273 mockChannel.emit.mockClear();1274 emitter.emit(Events.SET_CURRENT_STORY, {1275 storyId: 'component-one--b',1276 viewMode: 'story',1277 });1278 await waitForSetCurrentStory();1279 await waitForRender();1280 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ERRORED, error);1281 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith({1282 message: error.title,1283 stack: error.description,1284 });1285 });1286 it('renders exception if the story calls showException', async () => {1287 document.location.search = '?id=component-one--a';1288 const preview = await createAndRenderPreview();1289 const error = new Error('error');1290 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>1291 context.showException(error)1292 );1293 mockChannel.emit.mockClear();1294 emitter.emit(Events.SET_CURRENT_STORY, {1295 storyId: 'component-one--b',1296 viewMode: 'story',1297 });1298 await waitForSetCurrentStory();1299 await waitForRender();1300 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);1301 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);1302 });1303 it('executes playFunction', async () => {1304 document.location.search = '?id=component-one--a';1305 await createAndRenderPreview();1306 mockChannel.emit.mockClear();1307 emitter.emit(Events.SET_CURRENT_STORY, {1308 storyId: 'component-one--b',1309 viewMode: 'story',1310 });1311 await waitForSetCurrentStory();1312 await waitForRender();1313 expect(componentOneExports.b.play).toHaveBeenCalled();1314 });1315 it('emits STORY_RENDERED', async () => {1316 document.location.search = '?id=component-one--a';1317 await createAndRenderPreview();1318 mockChannel.emit.mockClear();1319 emitter.emit(Events.SET_CURRENT_STORY, {1320 storyId: 'component-one--b',1321 viewMode: 'story',1322 });1323 await waitForSetCurrentStory();1324 await waitForRender();1325 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--b');1326 });1327 it('retains any arg changes', async () => {1328 document.location.search = '?id=component-one--a';1329 const preview = await createAndRenderPreview();1330 mockChannel.emit.mockClear();1331 emitter.emit(Events.UPDATE_STORY_ARGS, {1332 storyId: 'component-one--a',1333 updatedArgs: { foo: 'updated' },1334 });1335 await waitForRender();1336 expect(preview.storyStore.args.get('component-one--a')).toEqual({1337 foo: 'updated',1338 });1339 mockChannel.emit.mockClear();1340 emitter.emit(Events.SET_CURRENT_STORY, {1341 storyId: 'component-one--b',1342 viewMode: 'story',1343 });1344 await waitForSetCurrentStory();1345 await waitForRender();1346 expect(preview.storyStore.args.get('component-one--a')).toEqual({1347 foo: 'updated',1348 });1349 mockChannel.emit.mockClear();1350 emitter.emit(Events.SET_CURRENT_STORY, {1351 storyId: 'component-one--a',1352 viewMode: 'story',1353 });1354 await waitForSetCurrentStory();1355 await waitForRender();1356 expect(preview.storyStore.args.get('component-one--a')).toEqual({1357 foo: 'updated',1358 });1359 });1360 describe('while story is still rendering', () => {1361 it('stops initial story after loaders if running', async () => {1362 const [gate, openGate] = createGate();1363 componentOneExports.default.loaders[0].mockImplementationOnce(async () => gate);1364 document.location.search = '?id=component-one--a';1365 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });1366 await waitForRenderPhase('loading');1367 emitter.emit(Events.SET_CURRENT_STORY, {1368 storyId: 'component-one--b',1369 viewMode: 'story',1370 });1371 await waitForSetCurrentStory();1372 await waitForRender();1373 // Now let the loader resolve1374 openGate({ l: 8 });1375 await waitForRender();1376 // Story gets rendered with updated args1377 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(1);1378 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1379 expect.objectContaining({1380 forceRemount: true,1381 storyContext: expect.objectContaining({1382 id: 'component-one--b',1383 loaded: { l: 7 },1384 }),1385 }),1386 undefined // this is coming from view.prepareForStory, not super important1387 );1388 });1389 it('aborts render for initial story', async () => {1390 const [gate, openGate] = createGate();1391 document.location.search = '?id=component-one--a';1392 projectAnnotations.renderToDOM.mockImplementationOnce(async () => gate);1393 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });1394 await waitForRenderPhase('rendering');1395 mockChannel.emit.mockClear();1396 emitter.emit(Events.SET_CURRENT_STORY, {1397 storyId: 'component-one--b',1398 viewMode: 'story',1399 });1400 await waitForSetCurrentStory();1401 // Now let the renderToDOM call resolve1402 openGate();1403 await waitForRenderPhase('aborted');1404 await waitForSetCurrentStory();1405 await waitForRenderPhase('rendering');1406 expect(projectAnnotations.renderToDOM).toHaveBeenCalledTimes(2);1407 await waitForRenderPhase('playing');1408 expect(componentOneExports.a.play).not.toHaveBeenCalled();1409 expect(componentOneExports.b.play).toHaveBeenCalled();1410 await waitForRenderPhase('completed');1411 expect(mockChannel.emit).not.toHaveBeenCalledWith(1412 Events.STORY_RENDERED,1413 'component-one--a'1414 );1415 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--b');1416 await waitForQuiescence();1417 });1418 it('aborts play function for initial story', async () => {1419 const [gate, openGate] = createGate();1420 componentOneExports.a.play.mockImplementationOnce(async () => gate);1421 document.location.search = '?id=component-one--a';1422 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });1423 await waitForRenderPhase('playing');1424 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1425 expect.objectContaining({1426 forceRemount: true,1427 storyContext: expect.objectContaining({1428 id: 'component-one--a',1429 loaded: { l: 7 },1430 }),1431 }),1432 undefined // this is coming from view.prepareForStory, not super important1433 );1434 mockChannel.emit.mockClear();1435 emitter.emit(Events.SET_CURRENT_STORY, {1436 storyId: 'component-one--b',1437 viewMode: 'story',1438 });1439 await waitForSetCurrentStory();1440 // Now let the playFunction call resolve1441 openGate();1442 await waitForRenderPhase('aborted');1443 await waitForSetCurrentStory();1444 await waitForRenderPhase('rendering');1445 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--b');1446 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1447 expect.objectContaining({1448 forceRemount: true,1449 storyContext: expect.objectContaining({1450 id: 'component-one--b',1451 loaded: { l: 7 },1452 }),1453 }),1454 undefined // this is coming from view.prepareForStory, not super important1455 );1456 await waitForRenderPhase('playing');1457 await waitForRenderPhase('completed');1458 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--b');1459 // Final story rendered is not emitted for the first story1460 await waitForQuiescence();1461 expect(mockChannel.emit).not.toHaveBeenCalledWith(1462 Events.STORY_RENDERED,1463 'component-one--a'1464 );1465 });1466 it('reloads page if playFunction fails to abort in time', async () => {1467 const [gate] = createGate();1468 componentOneExports.a.play.mockImplementationOnce(async () => gate);1469 document.location.search = '?id=component-one--a';1470 await new PreviewWeb().initialize({ importFn, getProjectAnnotations });1471 await waitForRenderPhase('playing');1472 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1473 expect.objectContaining({1474 forceRemount: true,1475 storyContext: expect.objectContaining({1476 id: 'component-one--a',1477 loaded: { l: 7 },1478 }),1479 }),1480 undefined // this is coming from view.prepareForStory, not super important1481 );1482 mockChannel.emit.mockClear();1483 emitter.emit(Events.SET_CURRENT_STORY, {1484 storyId: 'component-one--b',1485 viewMode: 'story',1486 });1487 // Wait three ticks without resolving the play function1488 await waitForSetCurrentStory();1489 await waitForSetCurrentStory();1490 await waitForSetCurrentStory();1491 expect(global.window.location.reload).toHaveBeenCalled();1492 expect(mockChannel.emit).not.toHaveBeenCalledWith(1493 Events.STORY_CHANGED,1494 'component-one--b'1495 );1496 expect(projectAnnotations.renderToDOM).not.toHaveBeenCalledWith(1497 expect.objectContaining({1498 storyContext: expect.objectContaining({ id: 'component-one--b' }),1499 }),1500 undefined1501 );1502 });1503 });1504 });1505 describe('when changing from story viewMode to docs', () => {1506 it('updates URL', async () => {1507 document.location.search = '?id=component-one--a';1508 await createAndRenderPreview();1509 emitter.emit(Events.SET_CURRENT_STORY, {1510 storyId: 'component-one--a',1511 viewMode: 'docs',1512 });1513 await waitForSetCurrentStory();1514 expect(history.replaceState).toHaveBeenCalledWith(1515 {},1516 '',1517 'pathname?id=component-one--a&viewMode=docs'1518 );1519 });1520 it('renders preparing state', async () => {1521 document.location.search = '?id=component-one--a';1522 const preview = await createAndRenderPreview();1523 emitter.emit(Events.SET_CURRENT_STORY, {1524 storyId: 'component-one--a',1525 viewMode: 'docs',1526 });1527 await waitForSetCurrentStory();1528 expect(preview.view.showPreparingDocs).toHaveBeenCalled();1529 });1530 it('emits STORY_CHANGED', async () => {1531 document.location.search = '?id=component-one--a';1532 await createAndRenderPreview();1533 mockChannel.emit.mockClear();1534 emitter.emit(Events.SET_CURRENT_STORY, {1535 storyId: 'component-one--a',1536 viewMode: 'docs',1537 });1538 await waitForSetCurrentStory();1539 await waitForEvents([Events.STORY_CHANGED]);1540 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--a');1541 });1542 it('calls view.prepareForDocs', async () => {1543 document.location.search = '?id=component-one--a';1544 const preview = await createAndRenderPreview();1545 mockChannel.emit.mockClear();1546 emitter.emit(Events.SET_CURRENT_STORY, {1547 storyId: 'component-one--a',1548 viewMode: 'docs',1549 });1550 await waitForSetCurrentStory();1551 await waitForRender();1552 expect(preview.view.prepareForDocs).toHaveBeenCalled();1553 });1554 it('render the docs container with the correct context', async () => {1555 document.location.search = '?id=component-one--a';1556 await createAndRenderPreview();1557 mockChannel.emit.mockClear();1558 emitter.emit(Events.SET_CURRENT_STORY, {1559 storyId: 'component-one--a',1560 viewMode: 'docs',1561 });1562 await waitForSetCurrentStory();1563 await waitForRender();1564 expect(ReactDOM.render).toHaveBeenCalledWith(1565 expect.objectContaining({1566 type: componentOneExports.default.parameters.docs.container,1567 props: expect.objectContaining({1568 context: expect.objectContaining({1569 id: 'component-one--a',1570 title: 'Component One',1571 name: 'A',1572 }),1573 }),1574 }),1575 'docs-element',1576 expect.any(Function)1577 );1578 });1579 it('emits DOCS_RENDERED', async () => {1580 document.location.search = '?id=component-one--a';1581 await createAndRenderPreview();1582 mockChannel.emit.mockClear();1583 emitter.emit(Events.SET_CURRENT_STORY, {1584 storyId: 'component-one--a',1585 viewMode: 'docs',1586 });1587 await waitForSetCurrentStory();1588 await waitForRender();1589 expect(mockChannel.emit).toHaveBeenCalledWith(Events.DOCS_RENDERED, 'component-one--a');1590 });1591 });1592 describe('when changing from docs viewMode to story', () => {1593 it('updates URL', async () => {1594 document.location.search = '?id=component-one--a&viewMode=docs';1595 await createAndRenderPreview();1596 emitter.emit(Events.SET_CURRENT_STORY, {1597 storyId: 'component-one--a',1598 viewMode: 'story',1599 });1600 await waitForSetCurrentStory();1601 expect(history.replaceState).toHaveBeenCalledWith(1602 {},1603 '',1604 'pathname?id=component-one--a&viewMode=story'1605 );1606 });1607 it('unmounts docs', async () => {1608 document.location.search = '?id=component-one--a&viewMode=docs';1609 await createAndRenderPreview();1610 mockChannel.emit.mockClear();1611 emitter.emit(Events.SET_CURRENT_STORY, {1612 storyId: 'component-one--a',1613 viewMode: 'story',1614 });1615 await waitForSetCurrentStory();1616 await waitForRender();1617 expect(ReactDOM.unmountComponentAtNode).toHaveBeenCalled();1618 });1619 // NOTE: I am not sure this entirely makes sense but this is the behaviour from 6.31620 it('emits STORY_CHANGED', async () => {1621 document.location.search = '?id=component-one--a&viewMode=docs';1622 await createAndRenderPreview();1623 mockChannel.emit.mockClear();1624 emitter.emit(Events.SET_CURRENT_STORY, {1625 storyId: 'component-one--a',1626 viewMode: 'story',1627 });1628 await waitForSetCurrentStory();1629 await waitForEvents([Events.STORY_CHANGED]);1630 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--a');1631 });1632 it('calls view.prepareForStory', async () => {1633 document.location.search = '?id=component-one--a&viewMode=docs';1634 const preview = await createAndRenderPreview();1635 mockChannel.emit.mockClear();1636 emitter.emit(Events.SET_CURRENT_STORY, {1637 storyId: 'component-one--a',1638 viewMode: 'story',1639 });1640 await waitForSetCurrentStory();1641 await waitForRender();1642 expect(preview.view.prepareForStory).toHaveBeenCalledWith(1643 expect.objectContaining({1644 id: 'component-one--a',1645 })1646 );1647 });1648 it('emits STORY_PREPARED', async () => {1649 document.location.search = '?id=component-one--a&viewMode=docs';1650 await createAndRenderPreview();1651 mockChannel.emit.mockClear();1652 emitter.emit(Events.SET_CURRENT_STORY, {1653 storyId: 'component-one--a',1654 viewMode: 'story',1655 });1656 await waitForSetCurrentStory();1657 await waitForEvents([Events.STORY_PREPARED]);1658 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_PREPARED, {1659 id: 'component-one--a',1660 parameters: {1661 __isArgsStory: false,1662 docs: { container: expect.any(Function) },1663 fileName: './src/ComponentOne.stories.js',1664 },1665 initialArgs: { foo: 'a' },1666 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1667 args: { foo: 'a' },1668 });1669 });1670 it('applies loaders with story context', async () => {1671 document.location.search = '?id=component-one--a&viewMode=docs';1672 await createAndRenderPreview();1673 mockChannel.emit.mockClear();1674 emitter.emit(Events.SET_CURRENT_STORY, {1675 storyId: 'component-one--a',1676 viewMode: 'story',1677 });1678 await waitForSetCurrentStory();1679 await waitForRender();1680 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(1681 expect.objectContaining({1682 id: 'component-one--a',1683 parameters: {1684 __isArgsStory: false,1685 docs: { container: expect.any(Function) },1686 fileName: './src/ComponentOne.stories.js',1687 },1688 initialArgs: { foo: 'a' },1689 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1690 args: { foo: 'a' },1691 })1692 );1693 });1694 it('passes loaded context to renderToDOM', async () => {1695 document.location.search = '?id=component-one--a&viewMode=docs';1696 await createAndRenderPreview();1697 mockChannel.emit.mockClear();1698 emitter.emit(Events.SET_CURRENT_STORY, {1699 storyId: 'component-one--a',1700 viewMode: 'story',1701 });1702 await waitForSetCurrentStory();1703 await waitForRender();1704 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1705 expect.objectContaining({1706 forceRemount: true,1707 storyContext: expect.objectContaining({1708 id: 'component-one--a',1709 parameters: {1710 __isArgsStory: false,1711 docs: { container: expect.any(Function) },1712 fileName: './src/ComponentOne.stories.js',1713 },1714 globals: { a: 'b' },1715 initialArgs: { foo: 'a' },1716 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1717 args: { foo: 'a' },1718 loaded: { l: 7 },1719 }),1720 }),1721 undefined // this is coming from view.prepareForStory, not super important1722 );1723 });1724 it('renders exception if renderToDOM throws', async () => {1725 document.location.search = '?id=component-one--a&viewMode=docs';1726 const preview = await createAndRenderPreview();1727 const error = new Error('error');1728 projectAnnotations.renderToDOM.mockImplementationOnce(() => {1729 throw error;1730 });1731 mockChannel.emit.mockClear();1732 emitter.emit(Events.SET_CURRENT_STORY, {1733 storyId: 'component-one--a',1734 viewMode: 'story',1735 });1736 await waitForSetCurrentStory();1737 await waitForRender();1738 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);1739 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);1740 });1741 it('renders error if the story calls showError', async () => {1742 const error = { title: 'title', description: 'description' };1743 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>1744 context.showError(error)1745 );1746 document.location.search = '?id=component-one--a&viewMode=docs';1747 const preview = await createAndRenderPreview();1748 mockChannel.emit.mockClear();1749 emitter.emit(Events.SET_CURRENT_STORY, {1750 storyId: 'component-one--a',1751 viewMode: 'story',1752 });1753 await waitForSetCurrentStory();1754 await waitForRender();1755 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ERRORED, error);1756 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith({1757 message: error.title,1758 stack: error.description,1759 });1760 });1761 it('renders exception if the story calls showException', async () => {1762 const error = new Error('error');1763 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>1764 context.showException(error)1765 );1766 document.location.search = '?id=component-one--a&viewMode=docs';1767 const preview = await createAndRenderPreview();1768 mockChannel.emit.mockClear();1769 emitter.emit(Events.SET_CURRENT_STORY, {1770 storyId: 'component-one--a',1771 viewMode: 'story',1772 });1773 await waitForSetCurrentStory();1774 await waitForRender();1775 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);1776 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);1777 });1778 it('executes playFunction', async () => {1779 document.location.search = '?id=component-one--a&viewMode=docs';1780 await createAndRenderPreview();1781 mockChannel.emit.mockClear();1782 emitter.emit(Events.SET_CURRENT_STORY, {1783 storyId: 'component-one--a',1784 viewMode: 'story',1785 });1786 await waitForSetCurrentStory();1787 await waitForRender();1788 expect(componentOneExports.a.play).toHaveBeenCalled();1789 });1790 it('emits STORY_RENDERED', async () => {1791 document.location.search = '?id=component-one--a&viewMode=docs';1792 await createAndRenderPreview();1793 mockChannel.emit.mockClear();1794 emitter.emit(Events.SET_CURRENT_STORY, {1795 storyId: 'component-one--a',1796 viewMode: 'story',1797 });1798 await waitForSetCurrentStory();1799 await waitForRender();1800 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');1801 });1802 });1803 });1804 describe('onStoriesChanged', () => {1805 describe('if stories.json endpoint 500s initially', () => {1806 it('recovers and renders the story', async () => {1807 document.location.search = '?id=component-one--a';1808 const err = new Error('sort error');1809 mockFetchResult = { status: 500, text: async () => err.toString() };1810 const preview = new PreviewWeb();1811 await expect(preview.initialize({ importFn, getProjectAnnotations })).rejects.toThrow(1812 'sort error'1813 );1814 expect(preview.view.showErrorDisplay).toHaveBeenCalled();1815 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CONFIG_ERROR, expect.any(Error));1816 mockChannel.emit.mockClear();1817 mockFetchResult = { status: 200, json: mockStoryIndex, text: () => 'error text' };1818 preview.onStoryIndexChanged();1819 await waitForRender();1820 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');1821 });1822 it('sets story args from the URL', async () => {1823 document.location.search = '?id=component-one--a&args=foo:url';1824 const err = new Error('sort error');1825 mockFetchResult = { status: 500, text: async () => err.toString() };1826 const preview = new PreviewWeb();1827 await expect(preview.initialize({ importFn, getProjectAnnotations })).rejects.toThrow(1828 'sort error'1829 );1830 expect(preview.view.showErrorDisplay).toHaveBeenCalled();1831 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CONFIG_ERROR, expect.any(Error));1832 mockChannel.emit.mockClear();1833 mockFetchResult = { status: 200, json: mockStoryIndex, text: () => 'error text' };1834 preview.onStoryIndexChanged();1835 await waitForRender();1836 expect(preview.storyStore.args.get('component-one--a')).toEqual({1837 foo: 'url',1838 });1839 });1840 });1841 describe('when the current story changes', () => {1842 const newComponentOneExports = merge({}, componentOneExports, {1843 a: { args: { foo: 'edited' } },1844 });1845 const newImportFn = jest.fn(async (path) => {1846 return path === './src/ComponentOne.stories.js'1847 ? newComponentOneExports1848 : componentTwoExports;1849 });1850 it('does not emit STORY_UNCHANGED', async () => {1851 document.location.search = '?id=component-one--a';1852 const preview = await createAndRenderPreview();1853 mockChannel.emit.mockClear();1854 preview.onStoriesChanged({ importFn: newImportFn });1855 await waitForRender();1856 expect(mockChannel.emit).not.toHaveBeenCalledWith(1857 Events.STORY_UNCHANGED,1858 'component-one--a'1859 );1860 });1861 it('does not emit STORY_CHANGED', async () => {1862 document.location.search = '?id=component-one--a';1863 const preview = await createAndRenderPreview();1864 mockChannel.emit.mockClear();1865 preview.onStoriesChanged({ importFn: newImportFn });1866 await waitForRender();1867 expect(mockChannel.emit).not.toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--a');1868 });1869 it('emits STORY_PREPARED with new annotations', async () => {1870 document.location.search = '?id=component-one--a';1871 const preview = await createAndRenderPreview();1872 mockChannel.emit.mockClear();1873 preview.onStoriesChanged({ importFn: newImportFn });1874 await waitForRender();1875 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_PREPARED, {1876 id: 'component-one--a',1877 parameters: {1878 __isArgsStory: false,1879 docs: { container: expect.any(Function) },1880 fileName: './src/ComponentOne.stories.js',1881 },1882 initialArgs: { foo: 'edited' },1883 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1884 args: { foo: 'edited' },1885 });1886 });1887 it('emits STORY_ARGS_UPDATED with new args', async () => {1888 document.location.search = '?id=component-one--a';1889 const preview = await createAndRenderPreview();1890 mockChannel.emit.mockClear();1891 preview.onStoriesChanged({ importFn: newImportFn });1892 await waitForRender();1893 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {1894 storyId: 'component-one--a',1895 args: { foo: 'edited' },1896 });1897 });1898 it('applies loaders with story context', async () => {1899 document.location.search = '?id=component-one--a';1900 const preview = await createAndRenderPreview();1901 mockChannel.emit.mockClear();1902 componentOneExports.default.loaders[0].mockClear();1903 preview.onStoriesChanged({ importFn: newImportFn });1904 await waitForRender();1905 expect(componentOneExports.default.loaders[0]).toHaveBeenCalledWith(1906 expect.objectContaining({1907 id: 'component-one--a',1908 parameters: {1909 __isArgsStory: false,1910 docs: { container: expect.any(Function) },1911 fileName: './src/ComponentOne.stories.js',1912 },1913 initialArgs: { foo: 'edited' },1914 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1915 args: { foo: 'edited' },1916 })1917 );1918 });1919 it('passes loaded context to renderToDOM', async () => {1920 document.location.search = '?id=component-one--a';1921 const preview = await createAndRenderPreview();1922 mockChannel.emit.mockClear();1923 projectAnnotations.renderToDOM.mockClear();1924 preview.onStoriesChanged({ importFn: newImportFn });1925 await waitForRender();1926 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1927 expect.objectContaining({1928 forceRemount: true,1929 storyContext: expect.objectContaining({1930 id: 'component-one--a',1931 parameters: {1932 __isArgsStory: false,1933 docs: { container: expect.any(Function) },1934 fileName: './src/ComponentOne.stories.js',1935 },1936 globals: { a: 'b' },1937 initialArgs: { foo: 'edited' },1938 argTypes: { foo: { name: 'foo', type: { name: 'string' } } },1939 args: { foo: 'edited' },1940 loaded: { l: 7 },1941 }),1942 }),1943 undefined // this is coming from view.prepareForStory, not super important1944 );1945 });1946 it('retains the same delta to the args', async () => {1947 document.location.search = '?id=component-one--a';1948 const preview = await createAndRenderPreview();1949 mockChannel.emit.mockClear();1950 emitter.emit(Events.UPDATE_STORY_ARGS, {1951 storyId: 'component-one--a',1952 updatedArgs: { foo: 'updated' },1953 });1954 await waitForRender();1955 mockChannel.emit.mockClear();1956 projectAnnotations.renderToDOM.mockClear();1957 preview.onStoriesChanged({ importFn: newImportFn });1958 await waitForRender();1959 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(1960 expect.objectContaining({1961 forceRemount: true,1962 storyContext: expect.objectContaining({1963 id: 'component-one--a',1964 args: { foo: 'updated' },1965 }),1966 }),1967 undefined // this is coming from view.prepareForStory, not super important1968 );1969 });1970 it('renders exception if renderToDOM throws', async () => {1971 document.location.search = '?id=component-one--a';1972 const preview = await createAndRenderPreview();1973 const error = new Error('error');1974 projectAnnotations.renderToDOM.mockImplementationOnce(() => {1975 throw error;1976 });1977 mockChannel.emit.mockClear();1978 preview.onStoriesChanged({ importFn: newImportFn });1979 await waitForRender();1980 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);1981 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);1982 });1983 it('renders error if the story calls showError', async () => {1984 document.location.search = '?id=component-one--a';1985 const preview = await createAndRenderPreview();1986 const error = { title: 'title', description: 'description' };1987 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>1988 context.showError(error)1989 );1990 mockChannel.emit.mockClear();1991 preview.onStoriesChanged({ importFn: newImportFn });1992 await waitForRender();1993 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ERRORED, error);1994 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith({1995 message: error.title,1996 stack: error.description,1997 });1998 });1999 it('renders exception if the story calls showException', async () => {2000 document.location.search = '?id=component-one--a';2001 const preview = await createAndRenderPreview();2002 const error = new Error('error');2003 projectAnnotations.renderToDOM.mockImplementationOnce((context) =>2004 context.showException(error)2005 );2006 mockChannel.emit.mockClear();2007 preview.onStoriesChanged({ importFn: newImportFn });2008 await waitForRender();2009 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_THREW_EXCEPTION, error);2010 expect(preview.view.showErrorDisplay).toHaveBeenCalledWith(error);2011 });2012 it('executes playFunction', async () => {2013 document.location.search = '?id=component-one--a';2014 const preview = await createAndRenderPreview();2015 mockChannel.emit.mockClear();2016 componentOneExports.a.play.mockClear();2017 preview.onStoriesChanged({ importFn: newImportFn });2018 await waitForRender();2019 expect(componentOneExports.a.play).toHaveBeenCalled();2020 });2021 it('emits STORY_RENDERED', async () => {2022 document.location.search = '?id=component-one--a';2023 const preview = await createAndRenderPreview();2024 mockChannel.emit.mockClear();2025 preview.onStoriesChanged({ importFn: newImportFn });2026 await waitForRender();2027 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');2028 });2029 });2030 describe('when the current story changes importPath', () => {2031 const newImportFn = jest.fn(async (path) => ({ ...componentOneExports }));2032 const newStoryIndex = {2033 v: 3,2034 stories: {2035 ...storyIndex.stories,2036 'component-one--a': {2037 ...storyIndex.stories['component-one--a'],2038 importPath: './src/ComponentOne-new.stories.js',2039 },2040 },2041 };2042 beforeEach(() => {2043 newImportFn.mockClear();2044 });2045 it('re-imports the component', async () => {2046 document.location.search = '?id=component-one--a';2047 const preview = await createAndRenderPreview();2048 mockChannel.emit.mockClear();2049 preview.onStoriesChanged({ importFn: newImportFn, storyIndex: newStoryIndex });2050 await waitForRender();2051 expect(newImportFn).toHaveBeenCalledWith('./src/ComponentOne-new.stories.js');2052 });2053 describe('if it was previously rendered', () => {2054 beforeEach(() => jest.useFakeTimers());2055 afterEach(() => jest.useRealTimers());2056 it('is reloaded when it is re-selected', async () => {2057 document.location.search = '?id=component-one--a';2058 const preview = await createAndRenderPreview();2059 mockChannel.emit.mockClear();2060 emitter.emit(Events.SET_CURRENT_STORY, {2061 storyId: 'component-one--b',2062 viewMode: 'story',2063 });2064 await waitForSetCurrentStory();2065 await waitForRender();2066 preview.onStoriesChanged({ importFn: newImportFn, storyIndex: newStoryIndex });2067 mockChannel.emit.mockClear();2068 emitter.emit(Events.SET_CURRENT_STORY, {2069 storyId: 'component-one--a',2070 viewMode: 'story',2071 });2072 await waitForSetCurrentStory();2073 await waitForRender();2074 expect(newImportFn).toHaveBeenCalledWith('./src/ComponentOne-new.stories.js');2075 });2076 });2077 });2078 describe('when the current story has not changed', () => {2079 const newComponentTwoExports = { ...componentTwoExports };2080 const newImportFn = jest.fn(async (path) => {2081 return path === './src/ComponentOne.stories.js'2082 ? componentOneExports2083 : newComponentTwoExports;2084 });2085 it('emits STORY_UNCHANGED', async () => {2086 document.location.search = '?id=component-one--a';2087 const preview = await createAndRenderPreview();2088 mockChannel.emit.mockClear();2089 preview.onStoriesChanged({ importFn: newImportFn });2090 await waitForEvents([Events.STORY_UNCHANGED]);2091 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_UNCHANGED, 'component-one--a');2092 expect(mockChannel.emit).not.toHaveBeenCalledWith(Events.STORY_CHANGED, 'component-one--a');2093 });2094 it('clears preparing state', async () => {2095 document.location.search = '?id=component-one--a';2096 const preview = await createAndRenderPreview();2097 (preview.view.showMain as jest.Mock).mockClear();2098 mockChannel.emit.mockClear();2099 preview.onStoriesChanged({ importFn: newImportFn });2100 await waitForEvents([Events.STORY_UNCHANGED]);2101 expect(preview.view.showMain).toHaveBeenCalled();2102 });2103 it('does not re-render the story', async () => {2104 document.location.search = '?id=component-one--a';2105 const preview = await createAndRenderPreview();2106 mockChannel.emit.mockClear();2107 projectAnnotations.renderToDOM.mockClear();2108 preview.onStoriesChanged({ importFn: newImportFn });2109 await waitForQuiescence();2110 expect(projectAnnotations.renderToDOM).not.toHaveBeenCalled();2111 expect(mockChannel.emit).not.toHaveBeenCalledWith(2112 Events.STORY_RENDERED,2113 'component-one--a'2114 );2115 });2116 });2117 describe('when another (not current) story changes', () => {2118 beforeEach(() => {2119 jest.useFakeTimers();2120 });2121 afterEach(() => {2122 jest.useRealTimers();2123 });2124 const newComponentOneExports = merge({}, componentOneExports, {2125 a: { args: { bar: 'edited' }, argTypes: { bar: { type: { name: 'string' } } } },2126 });2127 const newImportFn = jest.fn(async (path) => {2128 return path === './src/ComponentOne.stories.js'2129 ? newComponentOneExports2130 : componentTwoExports;2131 });2132 it('retains the same delta to the args', async () => {2133 // Start at Story A2134 document.location.search = '?id=component-one--a';2135 const preview = await createAndRenderPreview();2136 // Change A's args2137 mockChannel.emit.mockClear();2138 emitter.emit(Events.UPDATE_STORY_ARGS, {2139 storyId: 'component-one--a',2140 updatedArgs: { foo: 'updated' },2141 });2142 await waitForRender();2143 // Change to story B2144 mockChannel.emit.mockClear();2145 emitter.emit(Events.SET_CURRENT_STORY, {2146 storyId: 'component-one--b',2147 viewMode: 'story',2148 });2149 await waitForSetCurrentStory();2150 await waitForRender();2151 expect(preview.storyStore.args.get('component-one--a')).toEqual({2152 foo: 'updated',2153 });2154 // Update story A's args via HMR2155 mockChannel.emit.mockClear();2156 projectAnnotations.renderToDOM.mockClear();2157 preview.onStoriesChanged({ importFn: newImportFn });2158 await waitForRender();2159 // Change back to Story A2160 mockChannel.emit.mockClear();2161 emitter.emit(Events.SET_CURRENT_STORY, {2162 storyId: 'component-one--a',2163 viewMode: 'story',2164 });2165 await waitForSetCurrentStory();2166 await waitForRender();2167 expect(preview.storyStore.args.get('component-one--a')).toEqual({2168 foo: 'updated',2169 bar: 'edited',2170 });2171 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(2172 expect.objectContaining({2173 forceRemount: true,2174 storyContext: expect.objectContaining({2175 id: 'component-one--a',2176 args: { foo: 'updated', bar: 'edited' },2177 }),2178 }),2179 undefined // this is coming from view.prepareForStory, not super important2180 );2181 });2182 });2183 describe('if the story no longer exists', () => {2184 const { a, ...componentOneExportsWithoutA } = componentOneExports;2185 const newImportFn = jest.fn(async (path) => {2186 return path === './src/ComponentOne.stories.js'2187 ? componentOneExportsWithoutA2188 : componentTwoExports;2189 });2190 const newStoryIndex = {2191 v: 3,2192 stories: {2193 'component-one--b': storyIndex.stories['component-one--b'],2194 },2195 };2196 it('renders loading error', async () => {2197 document.location.search = '?id=component-one--a';2198 const preview = await createAndRenderPreview();2199 mockChannel.emit.mockClear();2200 preview.onStoriesChanged({ importFn: newImportFn, storyIndex: newStoryIndex });2201 await waitForEvents([Events.STORY_MISSING]);2202 expect(preview.view.showErrorDisplay).toHaveBeenCalled();2203 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_MISSING, 'component-one--a');2204 });2205 it('does not re-render the story', async () => {2206 document.location.search = '?id=component-one--a';2207 const preview = await createAndRenderPreview();2208 mockChannel.emit.mockClear();2209 projectAnnotations.renderToDOM.mockClear();2210 preview.onStoriesChanged({ importFn: newImportFn, storyIndex: newStoryIndex });2211 await waitForQuiescence();2212 expect(projectAnnotations.renderToDOM).not.toHaveBeenCalled();2213 expect(mockChannel.emit).not.toHaveBeenCalledWith(2214 Events.STORY_RENDERED,2215 'component-one--a'2216 );2217 });2218 it('re-renders the story if it is readded', async () => {2219 document.location.search = '?id=component-one--a';2220 const preview = await createAndRenderPreview();2221 mockChannel.emit.mockClear();2222 preview.onStoriesChanged({ importFn: newImportFn, storyIndex: newStoryIndex });2223 await waitForEvents([Events.STORY_MISSING]);2224 mockChannel.emit.mockClear();2225 preview.onStoriesChanged({ importFn, storyIndex });2226 await waitForRender();2227 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');2228 });2229 });2230 });2231 describe('onGetProjectAnnotationsChanged', () => {2232 describe('if initial getProjectAnnotations threw', () => {2233 it('recovers and renders the story', async () => {2234 document.location.search = '?id=component-one--a';2235 const err = new Error('meta error');2236 const preview = new PreviewWeb();2237 await expect(2238 preview.initialize({2239 importFn,2240 getProjectAnnotations: () => {2241 throw err;2242 },2243 })2244 ).rejects.toThrow(err);2245 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations });2246 await waitForRender();2247 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_RENDERED, 'component-one--a');2248 });2249 it('sets globals from the URL', async () => {2250 document.location.search = '?id=*&globals=a:c';2251 const err = new Error('meta error');2252 const preview = new PreviewWeb();2253 await expect(2254 preview.initialize({2255 importFn,2256 getProjectAnnotations: () => {2257 throw err;2258 },2259 })2260 ).rejects.toThrow(err);2261 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations });2262 await waitForRender();2263 expect(preview.storyStore.globals.get()).toEqual({ a: 'c' });2264 });2265 });2266 it('shows an error the new value throws', async () => {2267 document.location.search = '?id=component-one--a';2268 const preview = await createAndRenderPreview();2269 mockChannel.emit.mockClear();2270 const err = new Error('error getting meta');2271 await expect(2272 preview.onGetProjectAnnotationsChanged({2273 getProjectAnnotations: () => {2274 throw err;2275 },2276 })2277 ).rejects.toThrow(err);2278 expect(preview.view.showErrorDisplay).toHaveBeenCalled();2279 expect(mockChannel.emit).toHaveBeenCalledWith(Events.CONFIG_ERROR, err);2280 });2281 const newGlobalDecorator = jest.fn((s) => s());2282 const newGetProjectAnnotations = () => {2283 return {2284 ...projectAnnotations,2285 args: { global: 'added' },2286 globals: { a: 'edited' },2287 decorators: [newGlobalDecorator],2288 };2289 };2290 it('updates globals to their new values', async () => {2291 document.location.search = '?id=component-one--a';2292 const preview = await createAndRenderPreview();2293 mockChannel.emit.mockClear();2294 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations: newGetProjectAnnotations });2295 await waitForRender();2296 expect(preview.storyStore.globals.get()).toEqual({ a: 'edited' });2297 });2298 it('emits SET_GLOBALS with new values', async () => {2299 document.location.search = '?id=component-one--a';2300 const preview = await createAndRenderPreview();2301 mockChannel.emit.mockClear();2302 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations: newGetProjectAnnotations });2303 await waitForRender();2304 await waitForEvents([Events.SET_GLOBALS]);2305 expect(mockChannel.emit).toHaveBeenCalledWith(Events.SET_GLOBALS, {2306 globals: { a: 'edited' },2307 globalTypes: {},2308 });2309 });2310 it('updates args to their new values', async () => {2311 document.location.search = '?id=component-one--a';2312 const preview = await createAndRenderPreview();2313 mockChannel.emit.mockClear();2314 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations: newGetProjectAnnotations });2315 await waitForRender();2316 expect(preview.storyStore.args.get('component-one--a')).toEqual({2317 foo: 'a',2318 global: 'added',2319 });2320 });2321 it('emits SET_STORY_ARGS with new values', async () => {2322 document.location.search = '?id=component-one--a';2323 const preview = await createAndRenderPreview();2324 mockChannel.emit.mockClear();2325 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations: newGetProjectAnnotations });2326 await waitForRender();2327 expect(mockChannel.emit).toHaveBeenCalledWith(Events.STORY_ARGS_UPDATED, {2328 storyId: 'component-one--a',2329 args: { foo: 'a', global: 'added' },2330 });2331 });2332 it('rerenders the current story with new global meta-generated context', async () => {2333 document.location.search = '?id=component-one--a';2334 const preview = await createAndRenderPreview();2335 projectAnnotations.renderToDOM.mockClear();2336 mockChannel.emit.mockClear();2337 preview.onGetProjectAnnotationsChanged({ getProjectAnnotations: newGetProjectAnnotations });2338 await waitForRender();2339 expect(projectAnnotations.renderToDOM).toHaveBeenCalledWith(2340 expect.objectContaining({2341 storyContext: expect.objectContaining({2342 args: { foo: 'a', global: 'added' },2343 globals: { a: 'edited' },2344 }),2345 }),2346 undefined // this is coming from view.prepareForStory, not super important2347 );2348 });2349 });2350 describe('onKeydown', () => {2351 it('emits PREVIEW_KEYDOWN for regular elements', async () => {2352 document.location.search = '?id=component-one--a&viewMode=docs';2353 const preview = await createAndRenderPreview();2354 preview.onKeydown({2355 target: { tagName: 'div', getAttribute: jest.fn().mockReturnValue(null) },2356 } as any);2357 expect(mockChannel.emit).toHaveBeenCalledWith(2358 Events.PREVIEW_KEYDOWN,2359 expect.objectContaining({})2360 );2361 });2362 it('does not emit PREVIEW_KEYDOWN for input elements', async () => {2363 document.location.search = '?id=component-one--a&viewMode=docs';2364 const preview = await createAndRenderPreview();2365 preview.onKeydown({2366 target: { tagName: 'input', getAttribute: jest.fn().mockReturnValue(null) },2367 } as any);2368 expect(mockChannel.emit).not.toHaveBeenCalledWith(2369 Events.PREVIEW_KEYDOWN,2370 expect.objectContaining({})2371 );2372 });2373 });2374 describe('extract', () => {2375 // NOTE: if you are using storyStoreV6, and your `preview.js` throws, we do not currently2376 // detect it (as we do not wrap the import of `preview.js` in a `try/catch`). The net effect2377 // of that is that the `PreviewWeb`/`StoryStore` end up in an uninitalized state.2378 it('throws an error if the preview is uninitialized', async () => {2379 const preview = new PreviewWeb();2380 await expect(preview.extract()).rejects.toThrow(/Failed to initialize/);2381 });2382 it('throws an error if preview.js throws', async () => {2383 const err = new Error('meta error');2384 const preview = new PreviewWeb();2385 await expect(2386 preview.initialize({2387 importFn,2388 getProjectAnnotations: () => {2389 throw err;2390 },2391 })2392 ).rejects.toThrow(err);2393 await expect(preview.extract()).rejects.toThrow(err);2394 });2395 it('shows an error if the stories.json endpoint 500s', async () => {2396 const err = new Error('sort error');2397 mockFetchResult = { status: 500, text: async () => err.toString() };2398 const preview = new PreviewWeb();2399 await expect(preview.initialize({ importFn, getProjectAnnotations })).rejects.toThrow(2400 'sort error'2401 );2402 await expect(preview.extract()).rejects.toThrow('sort error');2403 });2404 it('waits for stories to be cached', async () => {2405 const [gate, openGate] = createGate();2406 const gatedImportFn = async (path) => {2407 await gate;2408 return importFn(path);2409 };2410 const preview = await createAndRenderPreview({ importFn: gatedImportFn });2411 let extracted = false;2412 preview.extract().then(() => {2413 extracted = true;2414 });2415 expect(extracted).toBe(false);2416 openGate();2417 await new Promise((r) => setTimeout(r, 0)); // Let the promise resolve2418 expect(extracted).toBe(true);2419 expect(await preview.extract()).toMatchInlineSnapshot(`2420 Object {2421 "component-one--a": Object {2422 "argTypes": Object {2423 "foo": Object {2424 "name": "foo",...

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1import { createAndRenderPreview } from 'storybook-root-cause';2import { storiesOf } from '@storybook/react';3import { withKnobs } from '@storybook/addon-knobs';4const stories = storiesOf('Button', module);5stories.addDecorator(withKnobs);6stories.add('with text', () => {7 const story = require('./Button.stories').withText;8 return createAndRenderPreview(story);9});10stories.add('with emoji', () => {11 const story = require('./Button.stories').withEmoji;12 return createAndRenderPreview(story);13});14stories.add('with some emoji and text', () => {15 const story = require('./Button.stories').withSomeEmojiAndText;16 return createAndRenderPreview(story);17});18stories.add('with some emoji and text as an object', () => {19 const story = require('./Button.stories').withSomeEmojiAndTextAsObject;20 return createAndRenderPreview(story);21});22stories.add('button with long text should be ellipsed', () => {23 const story = require('./Button.stories').buttonWithLongTextShouldBeEllipsed;24 return createAndRenderPreview(story);25});26stories.add('button with some emoji and long text should be ellipsed', () => {27 const story = require('./Button.stories').buttonWithSomeEmojiAndLongTextShouldBeEllipsed;28 return createAndRenderPreview(story);29});30stories.add('button with some emoji and long text should be ellipsed and have the title attribute', () => {31 const story = require('./Button.stories').buttonWithSomeEmojiAndLongTextShouldBeEllipsedAndHaveTheTitleAttribute;32 return createAndRenderPreview(story);33});34stories.add('button with some emoji and long text should be ellipsed and have the title attribute', () => {35 const story = require('./Button.stories').buttonWithSomeEmojiAndLongTextShouldBeEllipsedAndHaveTheTitleAttribute;36 return createAndRenderPreview(story);37});38stories.add('button with some emoji and long text should be ellipsed and have the title attribute', () => {39 const story = require('./Button.stories').buttonWithSomeEmojiAndLongTextShouldBeEllipsedAndHaveTheTitleAttribute;40 return createAndRenderPreview(story);41});42stories.add('button with some emoji and long text should be

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1import React from 'react';2import ReactDOM from 'react-dom';3import { createAndRenderPreview } from 'storybook-root';4import { App } from './App';5createAndRenderPreview(App, document.getElementById('root'));6import React from 'react';7import ReactDOM from 'react-dom';8import { createPreview } from '@storybook/addon-preview';9import { getStorybook, configure } from '@storybook/react';10const storybookRoot = document.createElement('div');11storybookRoot.id = 'storybook-root';12document.body.appendChild(storybookRoot);13const storybook = getStorybook();14const story = storybook[0].stories[0];15const preview = createPreview(story.render);16ReactDOM.render(preview, storybookRoot);17import { configure } from '@storybook/react';18configure(require.context('../src', true, /\.stories\.js$/), module);19import React from 'react';20import { storiesOf } from '@storybook/react';21import { App } from './App';22storiesOf('App', module)23 .add('with text', () => <App/>);24import React from 'react';25import { storiesOf } from '@storybook/react';26export const App = () => <div>Hello World</div>;27{28 "scripts": {29 },30 "devDependencies": {31 },

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1import { createAndRenderPreview } from 'storybook-root-provider';2const storybookRootProvider = new StorybookRootProvider();3storybookRootProvider.createAndRenderPreview({4 story: {5 },6 root: document.getElementById('root'),7});8[storybook-root-provider-example](

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1const {createAndRenderPreview} = require('@storybook/root-cause');2const {StoryRenderer} = require('@storybook/root-cause/lib/StoryRenderer');3const {getStorybook} = require('@storybook/react');4const {stories} = getStorybook();5const storyRenderer = new StoryRenderer(stories);6createAndRenderPreview(storyRenderer, 'Button', 'with text', {7 parameters: {8 }9});10const {createAndRenderScreenshots} = require('@storybook/root-cause');11const {StoryRenderer} = require('@storybook/root-cause/lib/StoryRenderer');12const {getStorybook} = require('@storybook/react');13const {stories} = getStorybook();14const storyRenderer = new StoryRenderer(stories);15createAndRenderScreenshots(storyRenderer, 'Button', 'with text', {16 parameters: {17 }18});19const {createAndRenderStories} = require('@storybook/root-cause');20const {StoryRenderer} = require('@storybook/root-cause/lib/StoryRenderer');21const {getStorybook} = require('@storybook/react');22const {stories} = getStorybook();23const storyRenderer = new StoryRenderer(stories);24createAndRenderStories(storyRenderer, 'Button', 'with text', {25 parameters: {26 }27});28const {createAndRenderStory} = require('@storybook/root-cause');29const {StoryRenderer} = require('@storybook/root-cause/lib/StoryRenderer');30const {getStorybook} = require

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1import { createAndRenderPreview } from 'storybook-root-cause-react';2import { MyComponent } from './MyComponent';3createAndRenderPreview(MyComponent, {4});5import { createAndRenderPreview } from 'storybook-root-cause-react';6import { MyComponent } from '../src/MyComponent';7createAndRenderPreview(MyComponent, {8});

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1import { createAndRenderPreview } from 'storybook-root-cause';2import { StorybookPreview } from 'storybook-preview';3const App = () => {4 const [preview, setPreview] = useState(null);5 useEffect(() => {6 createAndRenderPreview({7 }).then(setPreview);8 }, []);9 return <StorybookPreview preview={preview} />;10};11export default App;12import React from 'react';13import PropTypes from 'prop-types';14const StorybookPreview = ({ preview }) => {15 if (!preview) return null;16 const { html, css, js } = preview;17 return (18 dangerouslySetInnerHTML={{19 }}20 );21};22StorybookPreview.propTypes = {23 preview: PropTypes.shape({24 }),25};26export default StorybookPreview;

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