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'use strict';
require('../common');
const assert = require('assert');
const execFile = require('child_process').execFile;
if (process.argv[2] === 'child') {
setImmediate(function() {
require('fs').readFileSync(__filename);
process.exit();
});
} else {
(function runTest(flags) {
const execArgv = [flags.pop()];
let args = [__filename, 'child'];
let cntr = 0;
args = execArgv.concat(args);
if (!args[0]) args.shift();
execFile(process.execPath, args, function(err, stdout, stderr) {
assert.strictEqual(err, null);
assert.strictEqual(stdout, '');
if (/WARNING[\s\S]*readFileSync/.test(stderr))
cntr++;
if (args[0] === '--trace-sync-io') {
assert.strictEqual(cntr, 1);
} else if (args[0] === __filename) {
assert.strictEqual(cntr, 0);
} else {
throw new Error('UNREACHABLE');
}
if (flags.length > 0)
setImmediate(runTest, flags);
});
}(['--trace-sync-io', '']));
}
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