suspicious/noExclusiveTests

[emab]

This rule would look for usages where .only is used when defining a test. When .only is used, it's mostly for debugging purposes and isn't meant to be checked in. If you want to skip tests, they should be explicitly marked with .skip.

Example of invalid code:

describe.only("my test", () => {});
it.only("does something", () => {});

Example of valid code:

describe.skip("my test", () => {});
it.skip("does something", () => {});

An Eslint plugin exists for this rule: https://github.com/lo1tuma/eslint-plugin-mocha/blob/master/docs/rules/no-exclusive-tests.md

[ematipico]

Thank you, @emab, for your proposal. I would strongly suggest you add the message at #3, where we would like to collect feedback and ideas of rules from other sources.

Also, we usually don't assign a group to a rule when it's created. All rules have the group nursery set when implemented for the first time. After a trial period, they are promoted to a group, and that's when people can discuss which group fits better.

[emab]

Have added this over there, thanks!