@Test
public void getSubContextIdFrom_WithDelimiter() {

    String subContextIdString = "12345";
    String subidentifier = subContextIdString + ":456";
    Long subContextId = notificationSubscriptionContextFactoryTestObject.getSubContextIdFrom(subidentifier);
    assertEquals("Could not extract subContextId from '" + subidentifier + "'", Long.valueOf(subContextIdString), subContextId);
}