41 lines
1.8 KiB
TypeScript
41 lines
1.8 KiB
TypeScript
import { test, expect, env, AI_REPLY } from '@e2e'
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// Size and speed budgets for what every customer's visitor downloads and waits
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// for. About 15% headroom over today; raise a budget on purpose, in review, never
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// to make a red run green.
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const KB = 1024
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const BUDGETS = [
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{ file: 'embed loader (chattermate.min.js)', url: `${env.frontendUrl}/webclient/chattermate.min.js`, maxBytes: 60 * KB },
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{ file: 'widget script (widget.js)', url: `${env.backendUrl}/assets/widget.js`, maxBytes: 500 * KB },
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{ file: 'widget styles (widget.css)', url: `${env.backendUrl}/assets/widget.css`, maxBytes: 135 * KB },
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]
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test.describe('performance budgets', () => {
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for (const { file, url, maxBytes } of BUDGETS) {
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test(`${file} stays under ${maxBytes / KB} KB @perf`, async ({ request }) => {
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const body = await (await request.get(url, { headers: { 'Accept-Encoding': 'identity' } })).body()
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expect(body.length, `${file} is ${Math.round(body.length / KB)} KB`).toBeLessThanOrEqual(maxBytes)
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})
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}
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test('the widget is ready and answers within budget, with an instant model @perf @widget', async ({ agent, llm, widget }) => {
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await llm.script(agent, (s) => s.otherwise().reply('Happy to help!'))
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const loadStart = Date.now()
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await widget.embed()
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await widget.open()
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const readyMs = Date.now() - loadStart
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// The fake model answers at once, so this is the platform's own overhead.
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const sendStart = Date.now()
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await widget.send('Hello')
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await expect(widget.lastAgentMessage()).toHaveText('Happy to help!', AI_REPLY)
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const replyMs = Date.now() - sendStart
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test.info().annotations.push({ type: 'timing', description: `ready ${readyMs} ms, reply ${replyMs} ms` })
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expect(readyMs, 'embed → chat ready').toBeLessThan(8_000)
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expect(replyMs, 'send → reply').toBeLessThan(5_000)
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})
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})
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