This Kata is a Java adaptation of a kata from the TDD Fellow written in javascript. The game has only one high score and when current game’s score exceeds that number, it gets updated. Example acceptance test would read like this:

Given high score is 174
When player scores 191
Then high score is 191

Current implementation stores high score in a file.

• Write tests for this class.
• Fix the bug: when a game is launched (without any previous highscore), it throws an NPE.
• Extract storing mechanisms, so that class can be re-used with different storage mechanisms (for example local database, or external REST API).