Prerequisites

• Checked that your issue hasn't already been filed by cross-referencing issues with the faq label
• Checked next-gen ES issues and syntax problems by using the same environment and/or transpiler configuration without Mocha to ensure it isn't just a feature that actually isn't supported in the environment in question or a bug in your code.
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• Ensured that there is no discrepancy between the locally and globally installed versions of Mocha. You can find them with: node_modules/.bin/mocha --version(Local) and mocha --version(Global). We recommend that you not install Mocha globally.

Description

Running mocha with --fail-zero and --delay options, and calling run(). The exit code is always 1, even when some tests did run.

Steps to Reproduce

I created a gist with the files used in the examples below: https://gist.github.com/tonimellodic/525d29054744ca6d602145b81eb57e80

Expected behavior: Running with --fail-zero and --delay produces exit 0 when at least one test run.

Actual behavior: Running with --fail-zero and --delay always produces exit 1.

Running with --fail-zero only:

% npx mocha --fail-zero test/no-delay.js     

  No delay example
    ✔ runs a test

  1 passing (3ms)

% echo $?
0

Running with --fail-zero and --delay:

% npx mocha --fail-zero --delay test/delay.js

  Delay example
    ✔ runs a delayed test

  1 passing (5ms)

% echo $?
1

Reproduces how often: Always

Versions

mocha 10.1.0
node 16.13.1
MacOS 12.6.1
zsh shell