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jubnl
68b660e547
Node 22 URL.createObjectURL strictly requires a native node:buffer Blob and throws ERR_INVALID_ARG_TYPE when given a jsdom Blob (caught by fetchImageAsBlob, returning ''). Node 24 relaxed this check, masking the failure locally. Tests 007, 011: replace MSW/Response-based fetch mocks with direct vi.spyOn(fetch) mocks returning node:buffer Blobs via a duck-typed response object. The real URL.createObjectURL now handles the correct Blob type and returns a genuine blob: URL on all Node versions. Test 012: URL.createObjectURL identity varies across Node versions making it impossible to spy on reliably. Replace createObjectURLSpy assertion with a completedFetches counter in the fetch mock, which proves the same semantic guarantee (6 requests ran, 7th was cleared). setup.ts: restore the original conditional guard so the vi.fn fallback only applies when URL.createObjectURL is completely absent, not overwriting a working real implementation.
74 lines
2.8 KiB
TypeScript
74 lines
2.8 KiB
TypeScript
import '@testing-library/jest-dom/vitest';
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import { cleanup } from '@testing-library/react';
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import { afterAll, afterEach, beforeAll, vi } from 'vitest';
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import { server } from './helpers/msw/server';
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// Mock the websocket module so stores don't try to open real connections
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vi.mock('../src/api/websocket', () => ({
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connect: vi.fn(),
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disconnect: vi.fn(),
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getSocketId: vi.fn(() => null),
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setRefetchCallback: vi.fn(),
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}));
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// MSW lifecycle
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beforeAll(() => server.listen({ onUnhandledRequest: 'warn' }));
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afterEach(() => {
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server.resetHandlers();
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cleanup();
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localStorage.clear();
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sessionStorage.clear();
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});
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afterAll(() => server.close());
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// ── jsdom stubs ────────────────────────────────────────────────────────────────
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// window.matchMedia — used by dark mode / responsive components
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Object.defineProperty(window, 'matchMedia', {
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writable: true,
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value: vi.fn().mockImplementation((query: string) => ({
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matches: false,
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media: query,
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onchange: null,
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addListener: vi.fn(),
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removeListener: vi.fn(),
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addEventListener: vi.fn(),
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removeEventListener: vi.fn(),
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dispatchEvent: vi.fn(),
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})),
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});
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// IntersectionObserver — used by lazy loading
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// Must use a class or regular function (not arrow function) so 'new IntersectionObserver()' works
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class _MockIntersectionObserver {
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observe = vi.fn()
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unobserve = vi.fn()
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disconnect = vi.fn()
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root = null
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rootMargin = ''
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thresholds: ReadonlyArray<number> = []
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takeRecords = vi.fn(() => [])
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constructor(_callback: IntersectionObserverCallback, _options?: IntersectionObserverInit) {}
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}
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globalThis.IntersectionObserver = _MockIntersectionObserver as unknown as typeof IntersectionObserver;
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// ResizeObserver — used by resizable panels
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globalThis.ResizeObserver = vi.fn().mockImplementation(() => ({
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observe: vi.fn(),
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unobserve: vi.fn(),
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disconnect: vi.fn(),
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})) as unknown as typeof ResizeObserver;
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// URL.createObjectURL / revokeObjectURL — Node 22 URL.createObjectURL requires
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// a native node:buffer Blob; passing a jsdom Blob throws ERR_INVALID_ARG_TYPE.
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// Tests that need blob URLs should mock fetch to return node:buffer Blobs so
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// the real URL.createObjectURL works. For tests that only need the method to
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// exist without returning a real URL, stub it here as a vi.fn fallback.
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if (typeof URL.createObjectURL === 'undefined') {
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Object.defineProperty(URL, 'createObjectURL', { writable: true, configurable: true, value: vi.fn(() => 'blob:mock') });
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Object.defineProperty(URL, 'revokeObjectURL', { writable: true, configurable: true, value: vi.fn() });
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}
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// Element.prototype.scrollIntoView — jsdom doesn't implement it
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Element.prototype.scrollIntoView = vi.fn();
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