How to assertThat something is null with Hamcrest?

Question

How would I assertThat something is null?

for example

 assertThat(attr.getValue(), is(\"\"));

But I get an e

Answer 1

You can use IsNull.nullValue() method:

import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;

assertThat(attr.getValue(), is(nullValue()));