We are going to write a set of Junit test to test the correctness of the following method. Before we start writing the code for the Junit tests, we are going to write a minimum set of test cases that we think is necessary to comprehensively test the following method. Your job is to read the following code and documentation to make sense of what this method does, and then fill in the table below by the test cases that you write. For simplicity, we have already filled in the description of the test cases, so you only need to write the input and the expected output