50 lines
2.1 KiB
TypeScript
50 lines
2.1 KiB
TypeScript
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import { describe, test, expect } from 'vitest';
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import { NumberCounter } from './NumberCounter';
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const toHtml = (NumberCounter as any).toHtml;
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const counters = [
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{ number: 150, suffix: '+', label: 'Projects' },
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{ number: 50, suffix: '+', label: 'Clients' },
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];
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describe('NumberCounter.toHtml deterministic + unique scope ids (thread node id, no Math.random)', () => {
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test('same node id -> identical output across calls (deterministic)', () => {
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const { html: html1 } = toHtml({ counters }, '', 'node-nc1');
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const { html: html2 } = toHtml({ counters }, '', 'node-nc1');
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expect(html1).toBe(html2);
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});
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test('different node ids -> distinct, non-colliding nc_ scopes (identical props, no collision)', () => {
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const { html: html1 } = toHtml({ counters }, '', 'node-nc1');
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const { html: html2 } = toHtml({ counters }, '', 'node-nc2');
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const wrapId1 = html1.match(/<div id="(nc_[^"]+)"/)![1];
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const wrapId2 = html2.match(/<div id="(nc_[^"]+)"/)![1];
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expect(wrapId1).not.toBe(wrapId2);
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});
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test('wrapper id, per-counter ids, and inline script agree on the same uid', () => {
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const { html } = toHtml({ counters }, '', 'node-nc1');
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const wrapId = html.match(/<div id="(nc_[^"]+)"/)![1];
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expect(html).toContain(`id="${wrapId}_n0"`);
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expect(html).toContain(`id="${wrapId}_n1"`);
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expect(html).toContain(`var uid="${wrapId}"`);
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expect(html).toContain('document.getElementById(uid)');
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expect(html).toContain('document.getElementById(uid+"_n"+i)');
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});
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test('no nodeId (legacy 2-arg call): still deterministic across repeated calls, not random', () => {
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const { html: html1 } = toHtml({ counters }, '');
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const { html: html2 } = toHtml({ counters }, '');
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expect(html1).toBe(html2);
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});
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test('two different node ids never collide even with default (no counters override) props', () => {
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const { html: html1 } = toHtml({}, '', 'node-a');
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const { html: html2 } = toHtml({}, '', 'node-b');
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const wrapId1 = html1.match(/<div id="(nc_[^"]+)"/)![1];
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const wrapId2 = html2.match(/<div id="(nc_[^"]+)"/)![1];
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expect(wrapId1).not.toBe(wrapId2);
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});
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});
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