`describe` block without `it` does not trigger hooks

[scally]

Version

18.9.0

Platform

Darwin Eorzea.local 21.6.0 Darwin Kernel Version 21.6.0: Mon Aug 22 20:19:52 PDT 2022; root:xnu-8020.140.49~2/RELEASE_ARM64_T6000 arm64

Subsystem

node:test

What steps will reproduce the bug?

Nested beforeEach contexts do not work with describe/it:

import { beforeEach, describe, it } from 'node:test'
import { strict as assert } from 'node:assert'

let obj = {}
describe('outer', () => {
 beforeEach(() => {
 obj.outer = 'ok'
 })
 describe('inner', () => {
 beforeEach(() => {
 obj.inner = 'ok'
 })
 it('works', () => {
 assert.deepEqual(obj, { outer: 'ok', inner: 'ok' })
 })
 })
})

The output looks like this, a failure, due to what seems is only the inner beforeEach being run:

Expected values to be strictly deep-equal:
 + actual - expected

 {
 inner: 'ok',
 - outer: 'ok'
 }

The same style of suite beforeEach nesting works with test

import { test } from 'node:test'
import { strict as assert } from 'node:assert'

let obj = {}
test('outer', async outer => {
 outer.beforeEach(() => {
 obj.outer = 'ok'
 })
 await outer.test('inner', async inner => {
 inner.beforeEach(() => {
 obj.inner = 'ok'
 })
 await inner.test('works', () => {
 assert.deepEqual(obj, { outer: 'ok', inner: 'ok' })
 })
 })
})

Outputs:

TAP version 13
 # Subtest: inner
 # Subtest: works
 ok 1 - works
 ---
 duration_ms: 1.353708
 ...
# Subtest: outer
 1..1
 ok 1 - inner
 ---
 duration_ms: 2.2555
 ...
 1..1
ok 1 - outer
 ---
 duration_ms: 2.722792
 ...
1..1
# tests 1
# pass 1
# fail 0
# cancelled 0
# skipped 0
# todo 0
# duration_ms 4.435458

How often does it reproduce? Is there a required condition?

Always reproduces

What is the expected behavior?

Nested test contexts should work the same whether you are using describe/it or test

What do you see instead?

The expected and actual outputs are in the repro example above

Additional information

No response

[cjihrig]

It looks like nested beforeEach() does work with describe()/it() syntax. However, describe() with no tests does not trigger the hook. If you add an it() at the same level as describe('inner'), then it works as expected.

@MoLow is this a bug or intended behavior? I don't know what other test runners do in this case, but I'm leaning toward bug.

[scally]

FWIW, this works in Jest

[MoLow]

this is not intended