We do boundary value analysis in code example

Example 1: boundary value analysis

The basic idea in normal boundary 
value testing is to select input
variable values at their:
Minimum
Just above the minimum
A nominal value
Just below the maximum
Maximum

Example 2: what is boundary value analysis

The basic idea in normal boundary 
value testing is to select input
variable values at their:
Minimum
Just above the minimum
A nominal value
Just below the maximum
Maximum