Red- added a test for environment that fails because of the absence on junit
Green- junit is added to the classpath and then i can test the correct environment
Red- Test added to to generate the need of create the GameOfLife class
Green- GameOfLife class is created to make the test pass
Red- Added a test that make me write the method for calculate the next generation
Green- method for calculate nex generation is created
Refactor- as the instatiation of game occurs in more than one test then i moved this instatiation to the setup method and as i saw that the other test do nothing i delete them
Red- Added a test that sends a grid to the nextGeneration method of GameOfLife
Green- Added a method overloading the nextGeneration to receive the grid
Refactor- Removed method nextGeneration whitout parameters 'cause this is not necesary any more and the test testing this method is removed too