48 lines
1.8 KiB
TypeScript
48 lines
1.8 KiB
TypeScript
 
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import { test } from 'node:test';
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import assert from 'node:assert/strict';
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// This module uses atomWithStorage(..., { getOnInit: true }), so it reads
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// `localStorage` the moment it's evaluated. node has none, so install a no-op
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// mock, then import dynamically (a static import would be hoisted above the
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// mock assignment and evaluate the module too early).
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(globalThis as { localStorage?: unknown }).localStorage = {
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getItem: () => null,
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setItem: () => undefined,
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removeItem: () => undefined,
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};
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const { addRecentForwardTarget } = await import('./recentForwardTargets');
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test('addRecentForwardTarget prepends a new roomId', () => {
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assert.deepEqual(addRecentForwardTarget(['!a', '!b'], '!c'), ['!c', '!a', '!b']);
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});
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test('addRecentForwardTarget dedupes and moves the roomId to the front', () => {
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assert.deepEqual(addRecentForwardTarget(['!a', '!b', '!c'], '!b'), ['!b', '!a', '!c']);
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});
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test('addRecentForwardTarget ignores an empty roomId', () => {
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assert.deepEqual(addRecentForwardTarget(['!a', '!b'], ''), ['!a', '!b']);
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});
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test('addRecentForwardTarget caps the list at 8 entries, dropping the oldest', () => {
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const eight = Array.from({ length: 8 }, (_, i) => `!r${i}`);
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const result = addRecentForwardTarget(eight, '!new');
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assert.equal(result.length, 8);
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assert.equal(result[0], '!new');
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// the oldest entry (last) is dropped
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assert.equal(result.includes('!r7'), false);
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assert.deepEqual(result.slice(1), eight.slice(0, 7));
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});
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test('addRecentForwardTarget does not mutate its input', () => {
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const input = ['!a', '!b'];
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const before = [...input];
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addRecentForwardTarget(input, '!c');
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assert.deepEqual(input, before);
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});
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test('addRecentForwardTarget on an empty history returns a single-element list', () => {
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assert.deepEqual(addRecentForwardTarget([], '!first'), ['!first']);
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});
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