public class identifyShapes

public String identifyTetragon$($int $a,$ int $b,$ int $c,$ int d$)$ throws

NotAValidTetragon,

InvalidSideException

The method throws a NotAValidTetragon exception if the supplied values do not fit

into any of the possible three tetragons it is expected to find out, and the function throws

a InvalidSideException if any of the supplied values do not represent a valid value

for a geometric shape.

Types of proper tetragons the function can discriminate are:

Square

Rectangle

Trapezoid

a$.$ Identify the equivalence classes for both the input and output domains of the above

function, and come up with a proper diagram $($similar to the partitioning diagram

expected outputs, i$.$e$.,$ fill in the below table. You can add rows to the below table as

required. Make sure that each equivalence class you identified above is covered with at

least one test case, and also boundary value analysis is applied for all boundaries

present in your partitions. Hint: Do not neglect the invalid behavior tests!

Week$09$ Slide #$26$

Equivalence partitioning