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'use strict';
const common = require('../common');
if (common.isWindows)
common.skip('test not supported on Windows');
const assert = require('assert');
if (process.argv[2] === 'child') {
const fs = require('fs');
assert.strictEqual(process.listenerCount('SIGUSR2'), 1);
process.kill(process.pid, 'SIGUSR2');
process.kill(process.pid, 'SIGUSR2');
// Asynchronously wait for the snapshot. Use an async loop to be a bit more
// robust in case platform or machine differences throw off the timing.
(function validate() {
const files = fs.readdirSync(process.cwd());
if (files.length === 0)
return setImmediate(validate);
assert.strictEqual(files.length, 2);
for (let i = 0; i < files.length; i++) {
assert(/^Heap\..+\.heapsnapshot$/.test(files[i]));
JSON.parse(fs.readFileSync(files[i]));
}
})();
} else {
const { spawnSync } = require('child_process');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const args = ['--heapsnapshot-signal', 'SIGUSR2', __filename, 'child'];
const child = spawnSync(process.execPath, args, { cwd: tmpdir.path });
assert.strictEqual(child.status, 0);
assert.strictEqual(child.signal, null);
}