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

How to assert exception message with JUnit Test annotation

1. Step 1: Use the @ExpectationFailure annotation from org.junit.jupiter.api
2. Step 2: or use a custom assertion method
3. Step 3: that accepts both the expected exception type and its message.
4. Step 4: For example: @Test(expected = RuntimeException.class, message = "Employee ID is null") public void shouldThrowRuntimeExceptionExce
5. Step 5: To achieve similar functionality in Java world as .NET does.
6. Step 6: Use third-party libraries like JUnit-4 or org.junit.vintage
7. Step 7: or implement a custom assertion method using JUnit 5's @AssertAll annotation.
8. Step 8: For example: @Test @RepeatedTest(3) public void testSomething() {
9. Step 9: for (int i = 0; i < 3; i++) {
10. Step 10: assertThrows(RuntimeException.class, () -> {
11. Step 11: // Code that throws RuntimeException with null Employee ID
12. Step 12: });
13. Step 13: assertEquals("Employee ID is null", "Expected exception message.");
14. Step 14: }
15. Step 15: }
16. Step 16: Conclusion: The JUnit framework does not provide a built-in way to assert the exception message along with the expected exception type.
17. Step 17: However, there are alternative solutions using third-party libraries or implementing custom assertion methods.

Alternative Advanced Fix