Boundary value testing question Use the boundary value analysis method to derive

Question

Boundary value testing question Use the boundary value analysis method to derive a set of black box test cases for the following function that covers all the boundary value analysis criteria. Provide all input data and expected output data.
--------
Z = | X – Y + 10 when 10 < x <= 15 and 15 <= y <= 25
| X + Y – 5 when 0 < x <= 10 and 0 < y < 15
| Undefined when x = -5 and y = 0
| 0 Otherwise
--------
a) Define all boundaries.
b) Define the boundary values for each boundary.
c) Define the test cases for each boundary.  

Explanation / Answer

Part a)

Boundaries :

generally we consider boundary as below mentioned all possible cases:

So here boundaries are :

x = 11, x = 10, x = 15, x = 16

y = 15, y = 14, y = 25, y = 26

x = 1, x = 0, x = 10, x = 11

y = 1, y = 0, y = 14, y = 15

x = -5 and y = 0

Part b)

for expression 1)

x = 11, x = 10, x = 15, x = 16

y = 15, y = 14, y = 25, y = 26

for expression 2)

x = 1, x = 0, x = 10, x = 11

y = 1, y = 0, y = 14, y = 15

for expression 3)

x = -5 and y = 0

for expression 4)

all possible values of x and y which are not in the above range.

Part 3)

test case output values x = 11, y = 15 X-Y+10 = 6 x = 15, y = 25 X-Y+10 = 0 x = 10, y = 14 X+Y-5 = 19 x = 1, y = 1 X+Y-5 = -3 x = -5, y = 0 Undefined now all other possible values like: x = 0 , y = 0 0 x < 0 , y < 0 0 x = -1, y = 0 0

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.