Node File System unstable - node.js

Question

In Node.js, I noticed that file operations were not always stable. I have the impression that fs gives up when the operations are not completely finished. Here is an example to illustrate:
"use strict";
Error.stackTraceLimit = Infinity;
const fs = require("fs");
const filename = "foo.txt";
for (let i = 0; ; i++) {
try {
fs.writeFileSync(filename, "bar");
fs.unlinkSync(filename);
}
catch (e) {
throw Object.assign(new Error(`Error at iteration ${i}!`), { cause: e });
}
}
After a certain number of iterations, I get an error :
Error: Error at iteration 12980!
at Object.<anonymous> (C:\test.js:15:4)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12)
at internal/main/run_main_module.js:17:47 {
cause: Error: EPERM: operation not permitted, open 'foo.txt'
at Object.openSync (fs.js:462:3)
at Object.writeFileSync (fs.js:1384:35)
at Object.<anonymous> (C:\test.js:10:6)
at Module._compile (internal/modules/cjs/loader.js:999:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
at Module.load (internal/modules/cjs/loader.js:863:32)
at Function.Module._load (internal/modules/cjs/loader.js:708:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:60:12)
at internal/main/run_main_module.js:17:47 {
errno: -4048,
syscall: 'open',
code: 'EPERM',
path: 'foo.txt'
}
}
Do you have the same observation?
How can we ensure that these operations are stable?