Random String parameter is used to generate a random string of characters with a random length.

Adding Random String Parameter

The following fields need to be filled to add the Random String Parameter:

Parameter Details

Name : This field is used to define the name of the variable associated with the current parameter. Valid parameter names can have only alphabets and underscore (_).
Character Set : Define the character set from which Load Test generates a random string. Users can use a-z, A-Z, and 0-9 and their sub-sets. Their combination can also be used e.g. b-e1-3. In this case, the string generated is from b, c, d, e, 1, 2, and 3 characters only
Minimum Value: Specify the minimum length of the string. It can range from 0-10,000.
Maximum Value: Specify the maximum length of the string. It can range from 1-1,000,000.
Sample Output : Once we fill the above fields, the sample output is automatically populated based on the details.

Advanced

Updated Value On

This field is used to indicate Load Test when to generate a new string i.e. generate once and use this value for the entire session, or, generate a string every time Random String Parameter is used.Users can have the following option:

Session : Random string is generated only for the first use of the Random String Parameter. Then, for the entire script, the same value is used.
Use : Random string is generated for each use of the Random String Parameter. For example, if the Random String parameter is used 50 times in the script, then for every reference, a new random string is generated.