C Programming UNIT TESTING.

Write a Unit test for the double calcFuel(struct vehicle* v) function:

Remeber to test boundary conditions, use a combination of white box and black box tests and aim to maximize test coverage. Keep your tests simple, varied and thorough. Remember to check each functions pre- and post-conditions. If the program encounters an error, carefully choose the least disruptive way to inform the user. For example, if your function receives a value which is out of range and the error is not critical (i.e. the program is able to continue), consider printing an error rather than exiting the program.

You must use of the assert() function when writing unit tests. It accepts a single Boolean expression as an argument and will halt execution of the program if the expression evaluates to false. If the expression evaluates to true, program execution continues as normal. assert() is best used for testing purposes and should be used sparingly in production code. You must import the C library assert.h to use assertions.

**PROGRAM** COMPLIED and RUN in UNIX TERMINAL

/* Vehicle parking program */

//assignment2//

#include

#include

#include

#define CAR 1

#define TRUCK 2

#define SUV 3

#define CARFUEL 55

#define TRUCKFUEL 100

#define SUVFUEL 70

/* to store vehicle number, and its

row-col position in an array */

struct vehicle

{

int num ;

int row ;

int col ;

int type ;

} ;

int parkinfo[6][10] ; //number of vehicle parked

int vehcount ; // total vehicle parked

int carcount ; // total cars

int truckcount ; /* total trucks */

int suvcount ; /* total suv*/

float carfuel[20];

float truckfuel[20];

float suvfuel[20];

int vehicle[20];

float vehiclefuel[20] = {10,53,40,34,30,11,12,41,23,32,39,37,32,54,21,2,19,29,49,5};

float car[20];

float truck[20];

float suv[20];

float curfuel[20] = {10,53,40,34,30,11,12,41,23,32,39,37,32,54,21,2,19,29,49,5};

int numberplate = 0;

float fuel = 0; // fuel in percentage

bool g = false;

void display( ) ;

void changecol ( struct vehicle * ) ; // no need

struct vehicle * allocVehicle( int, int, int, int ) ;

void deallocVehicle ( struct vehicle * ) ;

void getfreerowcol ( int, int * ) ;

void getrcbyinfo ( int, int, int * ) ;

double calcFuel(struct vehicle* v);

int refuelVehicle(int, int);

void displayfuel(int,int);

void printRefuelReport();

void show( ) ;

void displayFuels();

/* decrements the col. number by one

this fun. is called when the data is

shifted one place to left */

void changecol ( struct vehicle *v )

{

v -> col = v -> col - 1 ;

}

void printRefuelReport()

{

int j= 0;

for( j = 0; j < 20; j++)

{

if (vehiclefuel[j] < 50)

{

if(vehicle[j] != 0)

{

g = true;

printf("Total fuel in percent is = %f",vehiclefuel[j]);

printf(" for Vehicle Number = %d ", vehicle[j] );

printf(" ");

}

else

{

if ( g == true)

{

break;

}

else

{

printf("The number of vehicles with less than 50% fuel tank is: ", 0.0);

}

}

}

}

}

void displayfuel(int numPlate, int t)

{

int j = 0;

for( j = 0; j < 20; j++)

{

if(vehicle[j] == numPlate)

{

if (t == 1)

{

printf("Vehicle Type: Car");

printf(" Total fuel in percent is = %f: ",vehiclefuel[j]);

printf(" for Vehicle %d =", vehicle[j] );

}

if (t == 2)

{

printf("Vehicle Type: Truck");

printf(" Total fuel in percent is = %f: ",vehiclefuel[j]);

printf(" for Vehicle %d =", vehicle[j] );

}

if (t == 3)

{

printf("Vehicle Type: SUV");

printf(" Total fuel in percent is = %f: ",vehiclefuel[j]);

printf(" for Vehicle %d =", vehicle[j] );

}

else

{

printf("Vehicle Does not exist");

break;

}

}

}

}

int refuelVehicle(int t, int n)

{

int i = 0 ;

for( i = 0; i < 20; i++)

{

if(vehicle[i] == n)

{

if(t == 1)

{

vehiclefuel[i] = 100;

}

if(t == 2)

{

vehiclefuel[i] = 100;

}

if(t == 3)

{

vehiclefuel[i] = 100;

}

}

}

displayfuel(t,n);

return 0;

}

double calcFuel(struct vehicle* v)

{

if(v -> type == CAR)

{

fuel = (curfuel[carcount-1]/CARFUEL) * 100;

vehicle[carcount-1] = numberplate;

vehiclefuel[carcount-1] = fuel;

}

else if (v -> type == TRUCK)

{

fuel = (curfuel[truckcount-1]/TRUCKFUEL) * 100;

vehicle[carcount-1] = numberplate;

vehiclefuel[carcount-1] = fuel;

}

else

{

fuel = (curfuel[suvcount-1]/SUVFUEL) * 100;

vehicle[carcount-1] = numberplate;

vehiclefuel[carcount-1] = fuel;

}

return 0;

}

/* adds a data of vehicle */

struct vehicle* allocVehicle ( int t, int num, int row, int col )

{

struct vehicle *v ;

v = ( struct vehicle * ) malloc ( sizeof ( struct vehicle ) ) ;

v -> type = t ;

v -> row = row ;

v -> col = col ;

if ( t == CAR )

{

carcount++ ;

}

else if(t == TRUCK)

{

truckcount++ ;

}

else

{

suvcount++ ;

}

vehcount++ ;

numberplate = num;

parkinfo[row][col] = num ;

calcFuel(v);

return v ;

}

/* deletes the data of the specified

car from the array, if found */

void deallocVehicle( struct vehicle *v )

{

int c ;

for ( c = v -> col ; c < 9 ; c++ )

parkinfo[v -> row][c] = parkinfo[v -> row][c+1] ;

parkinfo[v -> row][c] = 0 ;

if ( v -> type == CAR )

carcount-- ;

else if ( v -> type == TRUCK)

truckcount-- ;

else

suvcount-- ;

vehcount-- ;

}

/* get the row-col position for the vehicle to be parked */

void getfreerowcol ( int type, int *arr )

{

int r, c, fromrow = 0, torow = 2 ;

if ( type == TRUCK )

{

fromrow += 2 ;

torow += 2 ;

}

if(type == SUV)

{

fromrow += 4 ;

torow += 4 ;

}

for ( r = fromrow ; r < torow ; r++ )

{

for ( c = 0 ; c < 10 ; c++ )

{

if ( parkinfo[r][c] == 0 )

{

arr[0] = r ;

arr[1] = c ;

return ;

}

}

}

if ( r == 2 || r == 4 )

{

arr[0] = -1 ;

arr[1] = -1 ;

}

}

/* get the row-col position for the vehicle with specified number */

void getrcbyinfo ( int type, int num, int *arr )

{

int r, c, fromrow = 0, torow = 2 ;

if ( type == TRUCK )

{

fromrow += 2 ;

torow += 2 ;

}

if(type == SUV)

{

fromrow += 4 ;

torow += 4 ;

}

for ( r = fromrow ; r < torow ; r++ )

{

for ( c = 0 ; c < 10 ; c++ )

{

if ( parkinfo[r][c] == num )

{

arr[0] = r ;

arr[1] = c ;

return ;

}

}

}

if ( r == 2 || r == 4 )

{

arr[0] = -1 ;

arr[1] = -1 ;

}

}

/* displays list of vehicles parked */

void display( )

{

int r, c ;

printf ( "\xdb\xdb Cars => " ) ;

for ( r = 0 ; r < 5 ; r++ )

{

if ( r == 2 )

printf ( "\xdb\xdbTrucks => " ) ;

if ( r == 4)

printf( "\xdb\xdbSUVs => ");

for ( c = 0 ; c < 10 ; c++ )

printf ( "%d\t", parkinfo[r][c] ) ;

printf ( " " ) ;

}

}