Node.js assert.throws with async functions (Promises)

Question

I want to check if an async function throws using assert.throws from the native assert module. I tried with

const test = async () => await aPromi         


        

Answer 1

The answers given work, but I came across this issue today and came up with another solution, that I think is a little simpler.

// Code being tested
async function thisFunctionThrows() {
    throw new Error('Bad response')
}


// In your test.
try {
    await thisFunctionThrows()
    assert.equal(1 == 0) // Never gets run. But if it does you know it didn't throw.
} catch (e) {
    assert(e.message.includes('Bad response'))
}