How to set timeout on before hook in mocha?

Question

I want to set timeout value on before hook in mocha test cases. I know I can do that by adding -t 10000 on the command line of mocha but this will change every

Answer 1

Calling this.timeout(milliseconds); in the before hook is correct. Anyway, you need to use a regular function for the hook (function (done) ...) rather than an arrow function (done => ...).

before(
    function(done) {
        this.timeout(10000);
        ...
    }
);

And the reason is that arrow functions have no this binding.