Add positive test cases for find command testing

[rayray39]

Add 2 positive test cases for parsing of find command.

The first test case includes finding a person's name when the name contains the 'n/' prefix. The second test case includes finding an address when the address contains the 'a/' prefix.

closes #160

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

see 1 file with indirect coverage changes