Checking that a List is not empty in Hamcrest

Question

I was wondering if anyone knew of a way to check if a List is empty using assertThat() and Matchers?

Best way I could see just use JUnit:

assertFalse(list.isEmpty());

But I was hoping that there was some way to do this in Hamcrest.

user_2010794 · Answer

If you're after readable fail messages, you can do without hamcrest by using the usual assertEquals with an empty list:

assertEquals(new ArrayList<>(0), yourList);

E.g. if you run

assertEquals(new ArrayList<>(0), Arrays.asList("foo", "bar");

you get

java.lang.AssertionError
Expected :[]
Actual   :[foo, bar]

user_955701 · Answer

This works:

assertThat(list,IsEmptyCollection.empty())