How to mock @PrePersist method?
easymock, jmockit, jpa, mocking, mockito
Solution
In this case, what you really want is to mock the `IdGenerator` dependency, which happens to be called from a `@PrePersist` method.
Using JMockit, the test can be written as follows:
@Test
public void createOrder()
{
new MockUp<IdGenerator>() {
// change as needed...
@Mock int getNewId() { return 123; }
};
MiniOrder order = new MiniOrder();
order.setDate(new Date());
order.setCustomerId(32423423);
}
Problem
How do I mock a @PrePersist method, e.g. preInit(), of an entity that I instantiate? I'm using TestNG. EasyMock is prefered. ``` @Test(enabled = true) public void testCreateOrder() { // Instantiating the new mini order will automatically invoke the pre-persist method, which needs to be mocked/overwritten! MiniOrder order = new MiniOrder(); order.setDate(new Date()); order.setCustomerId(32423423); } ``` The MiniOrder.java is an entity that has a pre-persist method. Again, the one I like to mock/overwrite. E.g. `this.id = 1`; Alternatively one could also mock the `IdGenerator.getNewId()` method. ``` @PrePersist protected void preInit(){ this.id = IdGenerator.getNewId(); } ``` I don't want the `IdGenertor` class to be called, because it attempts to grab a jndi resource. I just don't understand how to capture this pre-persist method in advance, so that it's not triggered ,respectively replaced by different code, before the object is fully instantiaded.