Status Quo

In the JUnit Jupiter programming model it is currently not forbidden for @Test and lifecycle methods (i.e., @BeforeEach, @BeforeAll, etc.) to have a return value, even if it's assumed that no one declares anything other than void as a return type for such methods.

For example, the following currently execute.

@Test
int test() {
	fail("Boom!");
	return 42;
}

@BeforeEach
int before() {
	fail("Boom!");
	return 42;
}

Related Issues

• Introduce error handling mechanism for validation and discovery errors #242

Deliverables

• Forbid return values from test and lifecycle methods via test predicates that exclude such methods.