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Let's imagine that you have a field for entering a payment card number. The field takes values from 13 to 19 characters (length), inclusive. What values will you check with Boundary Testing technique?

Question

Let's imagine that you have a field for entering a payment card number. The field takes values from 13 to 19 characters (length), inclusive. What values will you check with Boundary Testing technique?

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Solution

Boundary Testing is a type of functional testing technique that checks the boundary values of valid and invalid partitions. The main aim of this testing is to identify the errors and issues that exist at the boundary values of input domain.

For a field that takes values from 13 to 19 characters, the boundary values will be:

  1. Lower Boundary Value: 13 characters
  2. Upper Boundary Value: 19 characters

In boundary testing, we also check the values just below and above the boundary values. So, the values to be checked will be:

  1. Just below lower boundary: 12 characters
  2. Just above lower boundary: 14 characters
  3. Just below upper boundary: 18 characters
  4. Just above upper boundary: 20 characters

So, in total, you will check the field with card numbers of lengths 12, 13, 14, 18, 19, and 20.

This problem has been solved

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