TUTORIAL 1 Black-Box Testing Equivalence Partitioning & Boundary Value Analysis Instruction: 1. For each of the following question, you need to: i. Find equivalence classes (EP) for all input of the specification. ii. Find boundary values for all input of the specification by using BVA. You can use a time line or just state the possible values. iii. Identify how many test cases to cover 100% test coverage for your answer in (i) and (ii). iv. Write all possible test cases for your answer in (i) and (ii). Question 1 A program converts student marks that are input as marks out of 100 to letter grades following the rules below: mark of at least 90 earns A+ mark of at least 80 earns A mark of at least 70 earns B mark of at least 60 earns C mark of at least 50 earns D mark below 50 means F (Fail) Note: Numeric marks are recorded accurate to one decimal point (0.1) and should be rounded up to the nearest whole number (0.5+1) by the grading program. The objective of testing is to ensure that students are assigned the correct grade, given their numeric mark. Question 2 The following paragraph describe the specification of Body Mass Index (BMI) calculator function in DietFit app. A BMI calculator function calculates the BMI taking as the input two variables which are height (in cm - an integer value) and weight (in kg - with two digit precision). Valid height is between 30cm and 250cm. Valid weight is between 20 and 300kg. A test input is a pair (height, weight). If a given variable's value is too low or too high, the system gives a warning message "X too low" or "X too high"), where X denotes height or weight. Question 3 You need to test one of function of CalculateMe apps which is calculate_Area. This function will takes a side length of a square object as an input (which is a nonnegative integer) and returns one out of three possible decisions, according to the area of the square of a given length: If area is less than 100, it returns square too small." If area is between 100 and 400, it returns "square OK." If area exceeds 400, it returns "square too big