Run all tests declared with .only, not just the last one

[SystemParadox]

At the moment, if multiple tests are declared with describe.only or it.only, mocha will only run the last one it finds.

It would be much more useful if mocha would run all tests declared with .only. I regularly want to run a few selected tests, or check another test in addition to the one I am currently working on.

Also, with the current behaviour it is impossible to select some tests when they are generated. Consider:

function test(mode) {
    it.only('should do something with mode', function () {
        assert(foobar(mode));
    });

    // many more tests
}

describe('foobar', function () {
    test('foo');
    test('bar');
});

This will only run the test for 'bar'. It is impossible to select just 'foo'. It would be much more useful to run all of them.

Thanks.

Related: #1060, #1676

[domarmstrong]

There is a PR that implements this #1591 awaiting merge for 3.0

[boneskull]

closing this since #1591 should address it