SsoResponseType.valueOf(null);
            fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected exception
        }
    }

    public void test_name() {
        // Test name() method returns correct string representation
        assertEquals("METADATA", SsoResponseType.METADATA.name());
        assertEquals("LOGOUT", SsoResponseType.LOGOUT.name());
    }