MUS-92 NoteBodyDrawerTest

Added tests for the NoteBodyDrawer class
MUS-92 NotePositionInformationTest

Added a few tests to the NotePositionInformationTest class
MUS-92 NoteBodyDrawerTest

Added more tests for the NoteBodyDrawer class
MUS-92 NoteBodyDrawerTest

Fixed a test in the NoteBodyDrawerTest class
MUS-92 NoteBodyDrawerTest

Fixed NoteBodyDrawer tests