Add Unit Tests

[virtuoushub]

Write Unit tests with as close to 100% code coverage as possible. roughly 60%-70% code coverage and follow the 80/20 rule.

[virtuoushub]

[updated to include more test runs]
I posit the difference in test runs has to do with the different IDEs used(Eclipse for the one minute, IntelliJ for the five minute), that and/or the way I am using Guice for DI. After further investigation, I was not creating a singleton via DI, and thus com.jed.core.MotherBrain.start() was getting called multiple times...

com.jed.* packages most used from a one minute on 2014-11-07 test using Mission Control

Stack Trace	Sample Count	Percentage(%)
com.jed.state.GameMap.update()	13	27.66
com.jed.core.QuadTree.clear()	3	6.383
com.jed.core.MotherBrain.start()	3	6.383
com.jed.core.QuadTree.getObjects()	2	4.255
com.jed.core.Collision$MinMax.(Collision, Boundary, Vector)	1	2.128
com.jed.actor.Boundary.getWorldPosition()	1	2.128
com.jed.actor.Player$Walking.update()	1	2.128
com.jed.core.Collision.compareTo(Object)	1	2.128
com.jed.core.QuadTree.insert(Entity)	1	2.128
com.jed.core.Collision.detectCollision()	1	2.128

com.jed.* packages most used from a five minute on 2014-11-08 test using Mission Control.

Stack Trace	Sample Count	Percentage(%)
com.jed.core.Collision.detectCollision()	8	5.298
com.jed.core.MotherBrain.start()	7	4.636
com.jed.core.QuadTree.insert(Entity)	6	3.974
com.jed.core.QuadTree.clear()	6	3.974
com.jed.core.QuadTree.(Vector, int, Rectangle, Displayable)	4	2.649
com.jed.state.GameMap.detectCollisions()	3	1.987
com.jed.core.QuadTree.getObjects()	2	1.325
com.jed.state.GameMap.update()	1	0.662
com.jed.actor.Boundary.getWorldPosition()	1	0.662
com.jed.state.GameMap.scrollMap()	1	0.662
com.jed.state.MapTile.draw()	1	0.662
com.jed.core.QuadTree.retrieve(List, Entity)	1	0.662
com.jed.actor.Player.draw()	1	0.662
com.jed.state.GameStateManager.draw()	1	0.662

com.jed.* packages most used from a one minute test on 2014-11-09 test using Mission Control.

Stack Trace	Sample Count	Percentage(%)
com.jed.state.GameMap.update()	20	42.553
com.jed.core.QuadTree.clear()	4	8.511
com.jed.core.QuadTree.insert(Entity)	4	8.511
com.jed.state.GameMap.drawMap()	3	6.383
com.jed.core.Collision.detectCollision()	2	4.255
com.jed.state.PlayState.getInput()	1	2.128

[virtuoushub]

I totally have not written any unit tests, I updated the due date of this issues milestone to reflect this fact.

[virtuoushub]

Five Minute Test Run using 0.1.8-SNAPSHOT

Stack Trace	Sample Count	Percentage(%)
com.jed.state.GameMap.update()	46	13.939
com.jed.core.QuadTree.insert(AbstractEntity)	26	7.879
com.jed.core.Collision.detectCollision()	9	2.727
com.jed.state.GameMap.detectCollisions()	5	1.515
com.jed.core.QuadTree.(Vector, int, Rectangle, Displayable)	4	1.212
com.jed.core.MotherBrain.start()	4	1.212
com.jed.state.GameMap.drawMap()	3	0.909
com.jed.core.QuadTree.getObjects()	2	0.606
com.jed.state.GameStateManager.update()	2	0.606
com.jed.core.Collision.resolveCollision()	1	0.303
com.jed.actor.Player.update()	1	0.303
com.jed.core.QuadTree.retrieve(List, AbstractEntity)	1	0.303

[virtuoushub]

I still have not written any unit tests, I updated the due date of this issues milestone to reflect this fact.