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test: verify inspector help url works

This commit adds basic functionality testing of the
help URL printed when the inspector starts.

PR-URL: #19887
Refs: #19871
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
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cjihrig committed Apr 9, 2018
1 parent 8170f4f commit dfea13a1688f8fda6a7132714019067e7da68d1b
Showing with 37 additions and 0 deletions.
  1. +37 −0 test/internet/test-inspector-help-page.js
@@ -0,0 +1,37 @@
'use strict';
const common = require('../common');
common.skipIfInspectorDisabled();
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const https = require('https');
const { spawnSync } = require('child_process');
const child = spawnSync(process.execPath, ['--inspect', '-e', '""']);
const stderr = child.stderr.toString();
const helpUrl = stderr.match(/For help, see: (.+)/)[1];
function check(url, cb) {
https.get(url, common.mustCall((res) => {
assert(res.statusCode >= 200 && res.statusCode < 400);
if (res.statusCode >= 300)
return check(res.headers.location, cb);
let result = '';
res.setEncoding('utf8');
res.on('data', (data) => {
result += data;
});
res.on('end', common.mustCall(() => {
assert(/>Debugging Guide</.test(result));
cb();
}));
})).on('error', common.mustNotCall);
}
check(helpUrl, common.mustCall());

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