How do I assert my exception message with JUnit Test annotation?

Question

I have written a few JUnit tests with @Test annotation. If my test method throws a checked exception and if I want to assert the message along with the exceptio

Answer 1

Import the catch-exception library, and use that. It's much cleaner than the ExpectedException rule or a try-catch.

Example form their docs:

import static com.googlecode.catchexception.CatchException.*;
import static com.googlecode.catchexception.apis.CatchExceptionHamcrestMatchers.*;

// given: an empty list
List myList = new ArrayList();

// when: we try to get the first element of the list
catchException(myList).get(1);

// then: we expect an IndexOutOfBoundsException with message "Index: 1, Size: 0"
assertThat(caughtException(),
  allOf(
    instanceOf(IndexOutOfBoundsException.class),
    hasMessage("Index: 1, Size: 0"),
    hasNoCause()
  )
);