What is a Random Number Generator?
A random number generator (RNG) will generate unique, non-repeating numbers between two values that you specify. By default, it will output a random number between 0 and 100. By changing the minimum and maximum values, you can tweak the process.
Why do I need a Random Number Generator?
This generator might be useful when you need to test an input form where a number is required. To make sure you cover all test cases, you might want to make the number unique, to make sure it does not trigger any duplicate errors.
Let's say you are testing a form that requires a house number. You might want to make sure that you are always including a random house number during the test.