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Consider the pseudo-code below for computing insurance premium.
(i) Draw the program graph
(ii) Compute the cyclomatic complexity
(iii) Derive a set of basis paths that can be used to test the program
(iv) Given that the baseRate is $500.00, create the test cases that will exercise all the branches for switch case C4 only. The test cases should show the inputs, the path taken and the expected output. [Hint: There should be only two test cases.]
1 program compute_insurance_premium()
2 integer driverAge, points
3 real baseRate, premium
4 Input(baseRate, driverAge, points)
5 safeDriveFactor = 0.0
6 premium = 0.0
7 switch (driverAge) {
8 case C1: 16 <= driverAge < 25
9 ageFactor = 3.0
10 if points < 2 then
11 safeDriverFactor = 40
12 end if
13 break; // End Case – C1
14 case C2: 25 <= driverAge < 45
15 ageFactor = 2.2
16 if points < 3 then
17 safeDriverFactor = 40
18 end if
19 break; // End Case – C2
20 case C3: 45 <= driverAge < 65
21 ageFactor = 1.5
22 if points < 5 then
23 safeDriverFactor = 80
24 end if
25 break; // End Case – C3
26 case C4: 65 <= driverAge < 100
27 ageFactor = 2.0
28 if points < 2 then
29 safeDriverFactor = 120
30 end if
31 break; // End Case – C4
32 default:
33 Output("Driver age out of range.")
34 } //End switch
35 premium = baseRate * ageFactor - safeDriverFactor
36 Output(premium)