mirror of https://github.com/sveltejs/svelte
commit
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import { flushSync, tick } from 'svelte';
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import { deferred } from '../../../../src/internal/shared/utils.js';
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import { test } from '../../test';
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/** @type {ReturnType<typeof deferred>} */
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let d;
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export default test({
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html: `<p>pending</p>`,
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get props() {
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d = deferred();
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return {
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promise: d.promise
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};
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},
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async test({ assert, target, component }) {
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d.reject(new Error('oops!'));
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await Promise.resolve();
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await Promise.resolve();
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flushSync();
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assert.htmlEqual(target.innerHTML, '<p>oops!</p><button>reset</button>');
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const button = target.querySelector('button');
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component.promise = (d = deferred()).promise;
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flushSync(() => button?.click());
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assert.htmlEqual(target.innerHTML, '<p>pending</p>');
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d.resolve('wheee');
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await Promise.resolve();
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await tick();
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assert.htmlEqual(target.innerHTML, '<h1>wheee</h1>');
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}
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});
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<script>
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let { promise } = $props();
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</script>
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<svelte:boundary>
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<h1>{await promise}</h1>
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{#snippet pending()}
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<p>pending</p>
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{/snippet}
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{#snippet failed(error, reset)}
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<p>{error.message}</p>
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<button onclick={reset}>reset</button>
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{/snippet}
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</svelte:boundary>
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