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ci(aio): log the full PWA testing results

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This will help diagnose errors or regressions in PWA scores.
This commit is contained in:
Georgios Kalpakas
2017-05-15 15:43:08 +03:00
committed by Pete Bacon Darwin
parent b40aae54b7
commit 35d1922006
4 changed files with 29 additions and 18 deletions
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40
aio/scripts/test-pwa-score.js
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@ -2,11 +2,10 @@
/**
* Usage:
* node scripts/test-pwa-score [<url> [<min-score>]]
* node scripts/test-pwa-score <url> <min-score> [<log-file>]
*
* Defaults:
* url: http://localhost:4200
* minScore: 90
* Fails if the score is below `<min-score>`.
* If `<log-file>` is defined, the full results will be logged there.
*
* (Ignores HTTPS-related audits, when run for HTTP URL.)
*/
@ -18,7 +17,7 @@ const Printer = require('lighthouse/lighthouse-cli/printer');
const config = require('lighthouse/lighthouse-core/config/default.json');
// Constants
const FLAGS = {output: 'json'};
const VIEWER_URL = 'https://googlechrome.github.io/lighthouse/viewer/';
// Work-around traceviewer-js bug.
global.atob = str => new Buffer(str, 'base64').toString('binary');
@ -34,7 +33,7 @@ _main(process.argv.slice(2));
// Functions - Definitions
function _main(args) {
const {url, minScore} = parseInput(args);
const {url, minScore, logFile} = parseInput(args);
const isOnHttp = /^http:/.test(url);
console.log(`Running PWA audit for '${url}'...`);
@ -43,8 +42,8 @@ function _main(args) {
ignoreHttpsAudits(config.aggregations);
}
launchChromeAndRunLighthouse(url, FLAGS, config).
then(getScore).
launchChromeAndRunLighthouse(url, {}, config).
then(results => processResults(results, logFile)).
then(score => evaluateScore(minScore, score)).
catch(onError);
}
@ -59,13 +58,6 @@ function evaluateScore(expectedScore, actualScore) {
}
}
function getScore(results) {
const scoredAggregations = results.aggregations.filter(a => a.scored);
const total = scoredAggregations.reduce((sum, a) => sum + a.total, 0);
return Math.round((total / scoredAggregations.length) * 100);
}
function ignoreHttpsAudits(aggregations) {
const httpsAudits = [
'is-on-https',
@ -99,6 +91,7 @@ function onError(err) {
function parseInput(args) {
const url = args[0];
const minScore = Number(args[1]);
const logFile = args[2];
if (!url) {
onError('Invalid arguments: <URL> not specified.');
@ -106,5 +99,20 @@ function parseInput(args) {
onError('Invalid arguments: <MIN_SCORE> not specified or not a number.');
}
return {url, minScore};
return {url, minScore, logFile};
}
function processResults(results, logFile) {
if (logFile) {
console.log(`Saving results in '${logFile}'...`);
console.log(`(LightHouse viewer: ${VIEWER_URL})`);
results.artifacts = undefined; // Avoid circular dependency errors.
Printer.write(results, 'json', logFile);
}
const scoredAggregations = results.aggregations.filter(a => a.scored);
const total = scoredAggregations.reduce((sum, a) => sum + a.total, 0);
return Math.round((total / scoredAggregations.length) * 100);
}