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 exception, is there a way to do so with JUnit @Test
annotation? AFAIK, JUnit 4.7 doesn't provide this feature but does any future versions provide it? I know in .NET you can assert the message and the exception class. Looking for similar feature in the Java world.
This is what I want:
@Test (expected = RuntimeException.class, message = "Employee ID is null")
public void shouldThrowRuntimeExceptionWhenEmployeeIDisNull() {}
You could use the @Rule
annotation with ExpectedException
, like this:
@Rule
public ExpectedException expectedEx = ExpectedException.none();
@Test
public void shouldThrowRuntimeExceptionWhenEmployeeIDisNull() throws Exception {
expectedEx.expect(RuntimeException.class);
expectedEx.expectMessage("Employee ID is null");
// do something that should throw the exception...
System.out.println("=======Starting Exception process=======");
throw new NullPointerException("Employee ID is null");
}
Note that the example in the ExpectedException
docs is (currently) wrong - there's no public constructor, so you have to use ExpectedException.none()
.