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How to use dummy values in Junit when values from database are required

Laryssa Fernandes
Greenhorn

Joined: Apr 14, 2011
Posts: 5
I have to write Junit test cases for some code. This code uses a database that I don't have. I have to write test cases for methods that call methods from other classes that access the database. Is it possible for me to somehow cause the methods in the other classes to return some dummy values when values from the database are required? Without changing any of the code...
Hebert Coelho
Ranch Hand

Joined: Jul 14, 2010
Posts: 754

Create a class that extends your database class, pass it in the constructor.

Somethig like this:

You also could use JUnit with HSQLDB that will works as a fake database: JUnit with HSQLDB, JPA and Hibernate.


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