Kotlinlearncs.online LogoJava
Return to List

Test Writing: Object v. Reference Equality

Created By: Geoffrey Challen
/ Version: 2020.10.0

Implement a public class method named compare on a public class Comparison that accepts two Object arguments. It should return 0 if both references are equal, 1 if both objects are equal, and -1 otherwise. Either reference can be null, so you'll need to handle those cases carefully!

Test Design Challenge

You're challenge is to write tests for this problem described above.

  • Provide a public class named TestComparison with a single non-private class method named test that accepts no arguments and does not return a value.
  • If the implementation of the class described above is incorrect, your test method should throw an exception.
  • If it is correct, do not throw an exception.
  • You may want to use Java's assert method