A short bit of searching didn’t turn up a decent answer for this so I’ll put this here for later.
In Mocha using
before/beforeEach/after/afterEach in nested describe blocks generally
work first-in first-run for ‘before’, and ‘first-in last-run’ for ‘after’.
Here’s an example, no libraries except Mocha needed – I had version 1.21.4 installed. You can’t rely on the ordering of A + B, I just labeled them so they’d be distinguishable.
'use strict';
describe('level 1', function() {
before(function() { console.log("L1 - before") });
beforeEach(function() { console.log("L1 - beforeEach") });
after(function() { console.log("L1 - after") });
afterEach(function() { console.log("L1 - afterEach") });
it('L1 test A', function() {});
it('L1 test B', function() {});
describe('level 2', function() {
before(function() { console.log("L2 - before") });
beforeEach(function() { console.log("L2 - beforeEach") });
after(function() { console.log("L2 - after") });
afterEach(function() { console.log("L2 - afterEach") });
it('L2 test A', function() {});
it('L2 test B', function() {});
});
});Here’s what you’ll see:
level 1
L1 - before
L1 - beforeEach
✓ L1 test A
L1 - afterEach
L1 - beforeEach
✓ L1 test B
L1 - afterEach
level 2
L2 - before
L1 - beforeEach
L2 - beforeEach
✓ L2 test A
L2 - afterEach
L1 - afterEach
L1 - beforeEach
L2 - beforeEach
✓ L2 test B
L2 - afterEach
L1 - afterEach
L2 - after
L1 - after
4 passing (5ms)