Test Writing: plus Out

Imported By: Geoffrey Challen

/ Version: 2021.7.0

/ Adapted from CodingBat

Given a non-null String main and a non-empty String word, return a String where all characters in main have replaced by pluses ("+"), except for appearances of word which are preserved unchanged. So if main is "12xy34" and word is "xy" you should return "++xy++".

Test Design Challenge

You're challenge is to write tests for this problem described above.

• Provide a method named test that accepts no arguments and does not return a value.
• If the implementation of the class described above is incorrect, your test method should throw an exception.
• If it is correct, do not throw an exception.
• You may want to use Java's assert method