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1)Write programs in C language to demonstrate the working of the following constructs a) b) c) d) e)

Do while While done If else Switch For

a)do while: AIM: To demonstrate theworking and various test cases on do while construct. DESCRIPTION: A do while is a loop control flow structure that executes a set of instructions over and over again until the condition becomes false. Here, condition is not checked while entering the loop, condition is checked while leaving the loop. So, in first iteration is free from condition checking. Condition variable is incremented to change condition in every check else it goes to infinite loop. PROGRAM: #include<stdio.h> #include void main(){ inta,b=6; clrscr(); printf("enter a number:"); scanf("%d",&a); do{ if(a%2==0){ printf("%d even",a); } else{ printf("%d odd",a); } printf("\n"); a++;b--; }while(b>0); getch(); }

b)while done: AIM: To demonstrate the working and various test cases on while construct.

DESCRIPTION: A while is a loop control flow structure that executes a set of instructions over and over again until the condition becomes false. Here, condition is checked while entering the loop, So, in first iteration is also checked with condition. Condition variable is incremented to change condition in every check else it goes to infinite loop.

PROGRAM: #include<stdio.h> #include void main(){ inta,b=6; clrscr(); printf("enter a number:"); scanf("%d",&a); while(b>0){ if(a%2==0){ printf("%d even",a); } else{ printf("%d odd",a); } printf("\n"); a++;b--; } getch(); }

c)SWITCH:

AIM: To demonstrate the working of switch case and show different possibilities of errors.

DESCRIPTION: A switch is a control flow structure that has n number of cases and executes particular case based on parameter passed. Here, condition checking doesn’t exist, it just takes a parameter and straightly executes the case which matches the parameter. Generally switch is implemented inside an infinite while loop to make it execute with many cases. And exit(0) function is used to quit from program.

PROGRAM: #include<stdio.h> #include #include<stdlib.h> void main(){ inta,b,op; clrscr(); while(1){ printf("enter two numbers:"); scanf("%d%d",&a,&b); printf("1.addition\t2.subtraction\n3.multiplication\t4.division\n5.exit\n"); scanf("%d",&op); switch(op){ case 1: printf("%d\n",a+b); break; case 2: printf("%d\n",a-b); break; case 3: printf("%d\n",a*b); break; case 4: printf("%d\n",a/b); break; case 5: exit(0); default: printf("enter valid option\n"); }

}

getch(); }

d)FOR:

AIM: To demonstrate the working of for construct and show different possibilities of errors.

DESCRIPTION: A for is a loop control flow structure that executes a set of instructions over and over again until the condition becomes false. Here, condition is checked while entering the loop, So, in first iteration is also checked with condition. With the condition, Condition variable is also given and incremented at the beginning(with the condition).

PROGRAM: #include<stdio.h> #include void main(){ inta,b; clrscr(); printf("enter a number:"); scanf("%d",&a); for(b=0;b<6;b++){ if(a%2==0){ printf("%d even",a); } else{ printf("%d odd",a); } printf("\n"); a++; } getch(); }

2) A program written in c language for matrix multiplication failure cases. Introspect the causes of these cases for their failure and write down the possible reasons for the failure. AIM: To write a matrix multiplication program in c language and test it with multiple cases and check the causes for its errors. DESCRIPTION: The matrix multiplication is possible and done only when the number of columns of first matrix are equal to number of rows of second matrix. Programmatically we can achieve this condition by taking matrices in the form of arrays(2 dimensional arrays for rows and columns). PROGRAM: #include<stdio.h> #include #include<stdlib.h> void main(){ int a[3][3],b[3][3],c[3][3],r1,r2,c1,c2,i,j,k; clrscr(); printf("enter rows and columns of matrix 1:"); scanf("%d%d",&r1,&c1); printf("enter rows and columns of matrix 2:"); scanf("%d%d",&r2,&c2); if(c1!=r2){ printf("matrix multiplication is not valid\n"); exit(0); } printf("enter values of matrix 1:"); for(i=0;i
for(i=0;i
printf("%d ",a[i][j]); } printf("\n"); } printf("matrix 2:\n"); for(i=0;i
3) Take any system (e.g. ATM SYSTEM) and study its system specifications and report the various bugs. AIM: To take a ATM SYSTEM and study its system specifications and report the various bugs that arise. DESCRIPTION: In any system, we write multiple programs and integrate them together to make fully functional software. While integrating together, there might be many errors and incompatibility bugs. All these are needed to be tested. EXPLAINATION: FEATURES TO BE TESTED: 1.Validity of card. 2.Withdraw transaction flow of ATM. 3.Authentication of users. 4. Dispense the cash from the account. 5. Verify the balance enquiry. 6. Change the pin number.

BUGS IDENTIFIED:

BUG ID

BUG NAME

ATM_001

Invalid card

ATM_002

Invalid pin

ATM_003

Invalid account type

ATM_004

Insufficient balance

ATM_005

Transaction balance limit

ATM_006

Day limit

ATM_007

Invalid money denomination

ATM_008

Receipt not printed

ATM_009

Pin mismatch

BUGS REPORTS: BUG ID

DESCRIPTION

STEPS TO PRODUCE

EXPECTED RESULT

ACTUAL RESULT

STATUS

ATM_001

Invalid card

1.keep an valid card.

Welcome screen

Invalid card

PASS/FAIL

ATM_002

Invalid pin

1.keep an valid card. 2. Enter valid pin.

Menu screen

Invalid pin

PASS/FAIL

ATM_003

Invalid account 1.keep an valid type card.

Enter amount screen

Invalid account type

PASS/FAIL

Collect the cash screen

Insufficient error

PASS/FAIL

Collect the cash screen

Insufficient transaction amount left message

PASS/FAIL

2. Enter valid pin. 3.select withdraw option. 4. Select account type. ATM_004

Insufficient balance

1.keep an valid card. 2. Enter valid pin. 3.select withdraw option. 4. Select account type. 5. enter amount

ATM_005

Transaction balance limit

1.keep an valid card. 2. Enter valid pin. 3.select withdraw option. 4. Select account type. 5. enter amount

ATM_006

Day limit

1.keep an valid card.

Collect the cash screen

Maximum transaction limit is reached message

PASS/FAIL

Collect the cash screen

Invalid amount type message

PASS/FAIL

2. Enter valid pin. 3.select withdraw option. 4. Select account type. 5. enter amount

ATM_007

Invalid money denomination

1.keep an valid card. 2. Enter valid pin. 3.select withdraw option. 4. Select account type. 5. enter amount

ATM_008

Receipt not printed

1.keep an valid card. 2. Enter valid pin. 3. select mini statement option 4.select account type

Collect receipt message

Receipt cannot be printed message

PASS/FAIL

ATM_009

Pin mismatch

1.keep an valid card.

Pin changed successfully

Pin mismatch error message

PASS/FAIL

2. Enter valid pin. 3. select change pin option. 4. enter old pin and new pin twice

TEST CASES: APPLICATION NAME

TESTCASE ID

TESTCASE SENARIO

TESTCASE

EXPECTED RESULT

ACTUAL RESULT

STATUS

TEST DATA

SBI ONLINE BANKING APPLICATION

1

Validate the login page with invalid username and valid password.

Enter invalid username and valid password in SBI online banking page

System should not allow user to login into the SBI online banking page.

Customer is not able to login into SBI online banking page.

PASS

Ex: Actual: abc 123 Entered: Aabc 123

SBI ONLINE BANKING APPLICATION

2

Validate the login page with invalid username and invalid password.

Enter invalid username and invalid password in SBI online banking page

System should not allow user to login into the SBI online banking page.

Customer is not able to login into SBI online banking page.

PASS

Ex: Actual: abc 123 Entered: Aabc 1234

SBI ONLINE BANKING APPLICATION

3

Validate the login page with valid username and invalid password.

Enter valid username and invalid password in SBI online banking page

System should not allow user to login into the SBI online banking page.

Customer is not able to login into SBI online banking page.

PASS

Ex: Actual: abc 123 Entered: abc 1234

SBI ONLINE BANKING APPLICATION

4

Validate the login page with valid username and valid password.

Enter valid username and valid password in SBI online banking page

System should allow user to login into the SBI online banking page.

Customer is able to login into SBI online banking page.

PASS

Ex: Actual: abc 123 Entered: abc 123

SBI ONLINE BANKING APPLICATION

5

Validate the user information by clicking on the profile picture.

Login into the system and by clicking on the profile photo, user should be able to access his information

Customer should be able to login into his account on SBI online page and user should be able to click on the profile picture and access his information.

Customer can login into his account and click on his profile picture, but user cannot find the info in it.

FAIL