Debugging Tips in QTP

Debugging is a process of executing the script or a program in a User designed fashion with some temporary break points in order to identify the errors.

For debugging, QTP is providing debug commands and breakpoints. 

Debug Commands:

1    1)  Step Into (short cut key F11): 

1. It starts execution
2. It executes one statement at a time.
3. If it is function call, it opens the function, after that it executes one statement at a time.

  2) Step Over (Short cut key F10):  

     a) It executes one statement at a time after execution starts

b) It executes all functions statements at a time

      Note: After opening the function, if we use step over it executes one statement at a time only.

     3)  Step Out (shift +F11): 

It executes all remaining statements in a function at a time. 

Ex: Dim a,b,c

a=100

b=200

c=a+b

msgbox c

msgbox "hello"

Call hyderabad

msgbox "bye bye" 

Note: Create a script and work on it 

Break Point: 

This feature is used for breaking the execution temporarily. 

Navigation:

Place cursor in desired location >Debug menu>Insert/Remove break point 

Or

Use short cut key (F9)

Or

Place mouse pointer before the statement and click. 

Note: If we want to execute Some part of the Test Script at a time and some other part of the test script step by step, there we can use breakpoints.  

Debug viewer Pane:  

It is used for viewing, modifying or setting the value of the variables during the execution break with the help of 3 Tabs.

1. Watch
2. Variables
3. Command

Note: Through Debug Viewer Pane, We can watch variables whether the variables are taking correct values or not at a specific point of time. We can change Values of Variables temporarily.

Ex :

Dim x,y,z

x=10

y=20

z=x+y

msgbox z

msgbox "Hello"

x=35

y=67

z=x*y

msgbox z

msgbox "bye bye" 

Navigation: View menu > Debug Viewer > Use step into feature.