Test Writing: Toggler Object

Created By: Geoffrey Challen

/ Version: 2021.9.0

Define a public class named Toggler with a single public instance method named toggle that takes no parameters and returns a boolean. Toggler should also provide a single public constructor that accepts a boolean argument and sets the initial state of the Toggler instance.

Toggler maintains one piece of private state: the boolean. Calling toggle changes the boolean from true to false or false to true and returns the new (not the old) state of the boolean. So, for example:

Note that the internal state should be private.

Test Design Challenge

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

• Provide a public class named TestToggler 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