Black Box – BVT on 2 Variables software testing
Suppose we have two variables x1 and x2 to test. The range of x1: 10 to 90. The range of x2: 20 to 70.| X1 | X2 | |
| Min | 10 | 20 |
| Min+ | 11 | 21 |
| Nominal | 50 | 45 |
| Max- | 89 | 69 |
| Max | 90 | 70 |
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Test cases. Total Test cases = (Number of variables * Number of testing points without nominal ) + (1 for Nominal) 9=2*4+1 There are total 2 variables x1 and x2. There are 4 possible values like min, min+, max- and max. 1 is for nominal. We can generate 9 test cases from both variables x1 and x2| Test Case# | X1,X2 | Test Case # | X1,X2 | Test Case # | X1,X2 |
| 1 | 10,45 | 2 | 11,45 | 3 | 50,45 |
| 4 | 89,45 | 5 | 90,45 | 6 | 50,20 |
| 7 | 50,21 | 8 | 50,69 | 9 | 50,70 |