globalThis.test = (suite, tests) => {
    process.stdout.write(suite + ": ");
    for (const [name, t] of Object.entries(tests)) {
        try {
            t(); 
            process.stdout.write(".");
        } catch(ex) {
            console.error("In " + suite +", test " + name + " failed:", ex)
        }
    }
    console.log();
}

// For global scope
globalThis.assert = (cond, msg) => { if (!cond) throw new Error(msg); };