'use strict'; require('../common'); const assert = require('assert'); const { spawnSync } = require('child_process'); const results = new Set(); for (let i = 0; i < 10; i++) { const result = spawnSync(process.execPath, ['-p', 'Math.random()']); assert.strictEqual(result.status, 0); results.add(result.stdout.toString()); } // It's theoretically possible if _very_ unlikely to see some duplicates. // Therefore, don't expect that the size of the set is exactly 10 but do // assume it's > 1 because if you get 10 duplicates in a row you should // go out real quick and buy some lottery tickets, you lucky devil you! assert(results.size > 1);