bvandeusen
c41bc5a99d
W-T3 (617477b) consolidated toast rendering into a single <ToastHost />
mounted in +layout.svelte, but page-level tests render components without
the layout, so screen.getByTestId('toast') and role=status queries broke.
Mount ToastHost in beforeEach (auto-cleaned by svelteTesting()) and reset
the store with clearToast() in afterEach so toasts can't leak between
tests.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
45 lines
2.2 KiB
TypeScript
45 lines
2.2 KiB
TypeScript
import '@testing-library/jest-dom/vitest';
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import { beforeEach, afterEach } from 'vitest';
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import { render } from '@testing-library/svelte';
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import ToastHost from './src/lib/components/ToastHost.svelte';
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import { clearToast } from './src/lib/stores/toast.svelte';
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// Node 25 ships a partial localStorage global that lacks getItem/setItem/clear
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// unless launched with --localstorage-file. jsdom sees Node's global and skips
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// installing its own. Replace with an in-memory Storage-compatible polyfill so
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// tests (and browser-only code under test) see a working localStorage.
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class MemoryStorage implements Storage {
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private store = new Map<string, string>();
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get length() { return this.store.size; }
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clear(): void { this.store.clear(); }
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getItem(key: string): string | null { return this.store.get(key) ?? null; }
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key(i: number): string | null { return Array.from(this.store.keys())[i] ?? null; }
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removeItem(key: string): void { this.store.delete(key); }
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setItem(key: string, value: string): void { this.store.set(key, String(value)); }
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}
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const memLocal = new MemoryStorage();
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const memSession = new MemoryStorage();
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Object.defineProperty(globalThis, 'localStorage', { configurable: true, value: memLocal });
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Object.defineProperty(globalThis, 'sessionStorage', { configurable: true, value: memSession });
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if (typeof window !== 'undefined') {
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Object.defineProperty(window, 'localStorage', { configurable: true, value: memLocal });
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Object.defineProperty(window, 'sessionStorage', { configurable: true, value: memSession });
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}
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// W-T3 moved toast rendering out of per-page markup into a single
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// <ToastHost /> mounted in +layout.svelte. Tests render individual pages
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// without the layout, so we mount ToastHost here so `pushToast()` calls
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// from page code surface in the DOM the same way they do in production.
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// `render()` from @testing-library/svelte registers auto-cleanup via the
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// svelteTesting() vite plugin, so the host gets unmounted between tests
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// alongside whatever component the test itself rendered. clearToast()
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// resets the module-scope store state so a stale toast from one test
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// can't leak into another.
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beforeEach(() => {
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render(ToastHost);
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});
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afterEach(() => {
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clearToast();
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});
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