A Software Engineering question, regarding Black-Box Testing Techniques: Q:- A p

Question

A Software Engineering question, regarding Black-Box Testing Techniques:

Q:- A program computes its output variable T according to the following formula: [ x as in multiply]

1)T = X x 0.2 + Y x 0.4 + Z x 0.4 where X>= 50, Y>= 50 and Z >= 50

2)T= X x 0.2 + Y x 0.3 + Z x 0.5 where X,Y and Z are otherwise than X>= 50, Y>= 50 and Z >= 50 range.

The input variables of this program are X,Y and Z. All of them are positive values. Using the following Black-Box testing techniques to design a test that is suit to this program:

b) Boundary Value Testing

Explanation / Answer

1) Test Case# 1: Test when X=50,Y=50, Z=50
Test Case# 2: Test when X=49,Y=49,Z=49
Test Case# 3: Test when X=51,Y=51,Z=51

2) Test Case# 1: Test when X=49,Y=49, Z=49
Test Case# 2: Test when X=-1,Y=-1,Z=-1
Test Case# 3: Test when X=1,Y=1,Z=1

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