unit tests: use of junit4 methods
junit4: no need for try/catch in tests

if a test throws an exception, junit sees it as failed
also, standard signature for test methods in throws Exception
junit test methods dont need to start with test

in junit 3, tests methods needed to start with test in order to be detected by junit
now in junit 4, the @Test annotation exists and method naming convension changed
see http://junit.org/ where you won't find any test method starting with test
Merge pull request #3 from jpcaruana/junit4

Junit4 conventions