Disallow tests with identical titles as it makes it hard to differentiate them.
import tap from 'tap';
tap.test('some test', t => {
t.pass();
t.end();
});
tap.test('some test', t => {
t.pass();
t.end();
});
import tap from 'tap';
tap.test('some test', t => {
t.pass();
t.end();
});
tap.test('some other test', t => {
t.pass();
t.end();
});