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| Current File : //proc/self/root/proc/self/root/home/ubuntu/node-v16.18.1/test/sequential/test-heapdump.js |
'use strict';
const common = require('../common');
if (!common.isMainThread)
common.skip('process.chdir is not available in Workers');
const { writeHeapSnapshot, getHeapSnapshot } = require('v8');
const assert = require('assert');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
process.chdir(tmpdir.path);
{
writeHeapSnapshot('my.heapdump');
fs.accessSync('my.heapdump');
}
{
const heapdump = writeHeapSnapshot();
assert.strictEqual(typeof heapdump, 'string');
fs.accessSync(heapdump);
}
[1, true, {}, [], null, Infinity, NaN].forEach((i) => {
assert.throws(() => writeHeapSnapshot(i), {
code: 'ERR_INVALID_ARG_TYPE',
name: 'TypeError',
message: 'The "path" argument must be of type string or an instance of ' +
'Buffer or URL.' +
common.invalidArgTypeHelper(i)
});
});
{
let data = '';
const snapshot = getHeapSnapshot();
snapshot.setEncoding('utf-8');
snapshot.on('data', common.mustCallAtLeast((chunk) => {
data += chunk.toString();
}));
snapshot.on('end', common.mustCall(() => {
JSON.parse(data);
}));
}
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