username is limited to 8 characters that means that the 
user name must be a valid user name and its size should not 
exceed 8 characters. Total no. of test cases for this is 2


test case   test case            test i/p    expected 
 Id            description                    result

un1        valid user name      somsekar   accept
un2        invalid user name    sesusekar  should not accept
 
In un2 the user name has more than 8 characters so it is a 
invalid i/p.

we should check for (User name)
1.accepting 8 characters with alphabets
2.should not accept only numbers 
3.should not accept only special characters
4.should accept the combination of numbers and alphabets 
5.should not accept the combination of alphabets and 
special characters
6.should not accept the combination of numbers and special 
characters 
7.should not accept the blank spaces
8.should not accept >8 characters
9.should not accept <8 characters
10.should not accept spaces between the names


we should check for (password)
1.accepting 8 characters with alphabets
2.should accept only numbers 
3.should  accept only special characters
4.should accept the combination of numbers and alphabets 
5.should accept the combination of alphabets and special 
characters
6.should accept the combination of numbers and special 
characters 
7.should not accept the blank spaces
8.should not accept >8 characters
9.should not accept <8 characters
10.should not accept spaces between the names
11.should accept all the three combination 
i.e.alphabets,numbers and special characters

1.Enter Username and click on enter,it should display error 
message"Enter username/password".
2.Enter Password and click on enter and check for the error 
message window "Enter Username/Password".
3.Enter numericals in the username textbox and enter 
password and click on enter.It should display error message 
window "Enter valid username".
4.Enter special characters in username textbox,password and 
click on enter.It should give error message window.
5.Enter the combination of both numbers and special 
characters in text field and click on enter.
6.Enter blank space in username text field,enter password 
and click on enter.it should not accept blank spaces.
7.Enter username and password fields blank and click on 
enter and check whether the warning message is displayed or 
not.
8.Enter alphabets more than specified i.e 9 alphabets.It 
should not accept alphabets other than 8.
9.Enter 8 alphabets and check.
10.Enter valid username i.e upto 8 characters and valid 
password and click on enter.it should accept and password 
should be in encrypted form.