Study the following C++ fuction carefully, float compute_bill(char c, float x, f
ID: 3578267 • Letter: S
Question
Study the following C++ fuction carefully,
float compute_bill(char c, float x, float y){
if ((x>=0.0) && (x<=10.))
ret = 8.0*x;
ret = 5.0*x;
if ( c == 'c' )
ret = ret +y;
else if ( c == 'p')
ret = ret +0.5*y;
else if ( c == 'v')
ret = ret +0.2*y;
else if ( c == 's')
ret = ret +0.1*y;
else {
cout << "Invalid input";
return(-1);
}
return(ret);
}
In order to have branch coverage in white box testing on the function, list the input and the expected outputs of every test case:
Explanation / Answer
Case 1:
Inputs:-
char c='a';
float x=5.5f;
float y=7.5f;
Output :-
Case 2:-
Inputs:-
char c='c';
float x=5.5f;
float y=7.5f;
Output:-
Case 3:-
Inputs :-
char c='p';
float x=5.55f;
float y=7.52f;
Output:-
Case 4:-
Input :-
char c='s';
float x=1.5f;
float y=4.2f;
Outputs:-