Test cases the do and don't need a plan

plan-tests.js

const assert = require('assert');
const tap = require('tap');

tap.test('Needs plan', function () {
    if (someCondition) {
        assert(anotherCondition, 'another message');
    }
});

tap.test('Does not need plan', function () {
    assert(someCondition, 'some message');
    assert(anotherCondition, 'another message');
});