My code involves a function with asynchronous operations and multiple callbacks
var f = (cb1, cb2) => {
return new Promise((resolve, reject) => { /* ... */ });
};
During testing, I wanted to use sinon to create spies
var cb1Spy = sinon.spy();
var cb2Spy = sinon.spy();
To ensure that both callbacks are called, I designed a test case
it('test', (done) => {
var cbCount = 2;
var checkIfDone = () => {
if(--cbCount === 0){
done()
}
};
f(
() => { cb1Spy; checkIfDone(); },
() => { cb2Spy; checkIfDone(); }
);
});
The test seems to work fine, but it doesn't feel like the optimal approach. Are there any best practices for this type of testing?