Writing Junit test case for custom component, which is extended from core component

Question

Hi All,
 
I have a custom hero component, which is extended from Image/v3 core component. The sling model is written using Sling Delegation pattern. I have overridden getSrc() and getAlt() methods in my sling model. 
How do we write Junit test case for these methods specifically ? Are these methods need to be covered, in general?
Any working example is highly appreciated.
 
Many thanks in advance!
 
Best,
Rupal

arunpatidar · Accepted Answer

Hi @rupaljain2408
This methods are not covered because they always return null.

If you want to cover just a code coverage, you can cover for null but I don't think so you will be able to test those overriden method.

Saravanan_Dharmaraj · Answer

Hi @rupaljain2408 ,

please check the below code example given by @arunpatidar using delegation pattern.

https://github.com/arunpatidar02/aem63app-repo/blob/master/java/CustomTeaser.java

https://github.com/arunpatidar02/aem63app-repo/blob/master/java/CustomTeaserTest.java

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