Checking that a List is not empty in Hamcrest

Question

Well there’s always

assertThat(list.isEmpty(), is(false));

… but I’m guessing that’s not quite what you meant 🙂

Alternatively:

assertThat((Collection)list, is(not(empty())));

empty() is a static in the Matchers class. Note the need to cast the list to Collection, thanks to Hamcrest 1.2’s wonky generics.

The following imports can be used with hamcrest 1.3

import static org.hamcrest.Matchers.empty;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsNot.*;