    @Test
    public void testInvalidEvent() {

        Map<String, String> ids = new HashMap<>();
        for (int i = 0; i < 101; i++) {
            ids.put(UUID.randomUUID().toString(), "value");
        }

        // Verify its invalid
        assertFalse(new AssociateIdentifiersEvent(new AssociatedIdentifiers(ids)).isValid());
    }