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/* eslint-disable node-core/require-common-first, node-core/required-modules */
'use strict';
require('./');
const fs = require('fs');
const path = require('path');
const assert = require('assert');
function getCpuProfiles(dir) {
const list = fs.readdirSync(dir);
return list
.filter((file) => file.endsWith('.cpuprofile'))
.map((file) => path.join(dir, file));
}
function getFrames(file, suffix) {
const data = fs.readFileSync(file, 'utf8');
const profile = JSON.parse(data);
const frames = profile.nodes.filter((i) => {
const frame = i.callFrame;
return frame.url.endsWith(suffix);
});
return { frames, nodes: profile.nodes };
}
function verifyFrames(output, file, suffix) {
const { frames, nodes } = getFrames(file, suffix);
if (frames.length === 0) {
// Show native debug output and the profile for debugging.
console.log(output.stderr.toString());
console.log(nodes);
}
assert.notDeepStrictEqual(frames, []);
}
// We need to set --cpu-interval to a smaller value to make sure we can
// find our workload in the samples. 50us should be a small enough sampling
// interval for this.
const kCpuProfInterval = 50;
const env = {
...process.env,
NODE_DEBUG_NATIVE: 'INSPECTOR_PROFILER'
};
module.exports = {
getCpuProfiles,
kCpuProfInterval,
env,
getFrames,
verifyFrames
};