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'use strict';
const assert = require('assert');
const spawn = require('child_process').spawn;
if (process.argv[2] === 'child') {
setImmediate(function() {
require('fs').readFileSync(__filename);
process.exit();
});
} else {
(function runTest(flags) {
var execArgv = [flags.pop()];
var args = [__filename, 'child'];
var child = spawn(process.execPath, execArgv.concat(args));
var stderr = '';
child.stdout.on('data', function(chunk) {
throw new Error('UNREACHABLE');
});
child.stderr.on('data', function(chunk) {
stderr += chunk.toString();
});
child.on('close', function() {
var cntr1 = (stderr.match(/WARNING/g) || []).length;
var cntr2 = (stderr.match(/fs\.readFileSync/g) || []).length;
assert.equal(cntr1, cntr2);
if (execArgv[0] === '--trace-sync-io') {
// Prints 4 WARNINGS for --trace-sync-io. 1 for each sync call
// inside readFileSync
assert.equal(cntr1, 4);
} else if (execArgv[0] === ' ') {
assert.equal(cntr1, 0);
} else {
throw new Error('UNREACHABLE');
}
if (flags.length > 0)
setImmediate(runTest, flags);
});
}(['--trace-sync-io', ' ']));
}