问题
构造下述三角形问题的弱健壮的等价类测试用例。
- 三角形问题：输入三个不超过100的正整数作为三角形的三条边，判断三角形是等边三角形、等腰不等边三角形、完全不等边三角形还是不能构成三角形。
解答
有效等价类划分：
- R1 = {<a, b, c>: the triangle with sides a, b, and c is equilateral}
- R2 = {<a, b, c>: the triangle with sides a, b, and c is isosceles}
- R3 = {<a, b, c>: the triangle with sides a, b, and c is scalene}
- R4 = {<a, b, c>: sides a, b, and c do not form a triangle}
Test Case | a | b | c | Expected Output |
|---|---|---|---|---|
WR1 | 5 | 5 | 5 | Equilateral |
WR2 | 2 | 2 | 3 | Isosceles |
WR3 | 3 | 4 | 5 | Scalene |
WR4 | 4 | 1 | 2 | Not a triangle |
WR5 | -1 | 5 | 5 | Value of a is out of range |
WR6 | 5 | -1 | 5 | Value of b is out of range |
WR7 | 5 | 5 | -1 | Value of c is out of range |
WR8 | 101 | 5 | 5 | Value of a is out of range |
WR9 | 5 | 101 | 5 | Value of b is out of range |
WR10 | 5 | 5 | 101 | Value of c is out of range |
WR11 | 5.1 | 5 | 5 | Value of a is not a integer |
WR12 | 5 | 5.1 | 5 | Value of b is not a integer |
WR13 | 5 | 5 | 5.1 | Value of c is not a integer |
