com.ttdev.wicketpagetest

Class ChangeResistantMockFactory

java.lang.Object

com.ttdev.wicketpagetest.ChangeResistantMockFactory

All Implemented Interfaces:

Serializable, org.apache.wicket.util.io.IClusterable

public class ChangeResistantMockFactory
extends Object
implements org.apache.wicket.util.io.IClusterable

In unit tests, typically we need to create a mock object implementing a one or two methods only of a certain interface. As we don't care about the other methods, a dummy implementation (e.g., throwing an "unsupported" exception) is enough for them. However, manually defining all such boring methods is no good: on one hand, it is just noise in the code; on the other hand, if new methods are added to the interface, the code will break. To avoid these problems, you can define a class implement those methods concerned only, then use this class to generate a sub-class of it at runtime to implement all the rest abstract methods and create an instance for you.

In addition, it is assumed that the your class (and thus the sub-class generated) is an inner class of an outer class (your unit test class) so the instance will have access to the outer instance.

See ChangeResistantMockFactoryTest for how to use.

Author:

Kent Tong

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ChangeResistantMockFactory(Object outerInstance)

Method Summary

Modifier and Type	Method and Description
<T> T	implementAbstractMethods(Class<T> clazz)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChangeResistantMockFactory

public ChangeResistantMockFactory(Object outerInstance)

Method Detail

implementAbstractMethods

public <T> T implementAbstractMethods(Class<T> clazz)