Are you ready to code? Let's start with the first requirement.
We should start by defining the boundaries and what constitutes an invalid placement of a piece.
We can split this requirement into three tests:
When a piece is placed anywhere outside the X axis, then
RuntimeExceptionis thrown.When a piece is placed anywhere outside the Y axis, then
RuntimeExceptionis thrown.When a piece is placed on an occupied space, then
RuntimeExceptionis thrown.
As you can see, the tests related to this first requirement are all about validations of the input argument. There is nothing in the requirements that says what should be done with those pieces.
Before we proceed with the first test, a brief explanation of how to test exceptions with JUnit is in order.
Starting from the release 4.7, JUnit introduced a feature called Rule. It can be used to do many different things (more information can be found at https...