57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
import '@babel/polyfill'
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import * as chromeLauncher from 'chrome-launcher'
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import test from 'ava'
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import lighthouse from 'lighthouse'
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import { siteMetadata } from '../gatsby-config'
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const launchChromeAndRunLighthouse = (
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url,
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opts = { chromeFlags: ['--headless'] },
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config = null
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) =>
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chromeLauncher
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.launch({ chromeFlags: opts.chromeFlags })
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.then(async chrome => {
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opts.port = chrome.port
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const results = await lighthouse(url, opts, config)
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await chrome.kill()
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return results.lhr
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})
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let scores
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test.before(async () => {
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console.log(`Auditing ${siteMetadata.siteUrl}.\n`) // eslint-disable-line no-console
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scores = await launchChromeAndRunLighthouse(siteMetadata.siteUrl).then(
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({ categories }) => categories
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)
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})
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const logScore = score => `Is ${score * 100}.`
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const testOutput = (t, metric) => {
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const { score } = scores[metric]
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t.log(logScore(score))
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return score >= 0.9 ? t.pass() : t.fail()
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}
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test('Performance Score above 90', t => {
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testOutput(t, 'performance')
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})
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test('PWA Score above 90', t => {
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testOutput(t, 'pwa')
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})
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test('Accessibility Score above 90', t => {
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testOutput(t, 'accessibility')
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})
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test('Best Practices Score above 90', t => {
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testOutput(t, 'best-practices')
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})
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test('SEO Score above 90', t => {
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testOutput(t, 'seo')
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})
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