test.js

const temp = require("temp"); // https://github.com/bruce/node-temp
const fs = require("fs");
const circom_wasm = require("circom_tester").wasm;

async function test() {
    temp.track();
        
    const temp_circuit = await temp.open('test');

    fs.writeSync(temp_circuit.fd, `
        pragma circom 2.0.0;

        template foo() { }

        component main = foo();
    `);

    await circom_wasm(temp_circuit.path);
}

test()