Add method savePlaylistForJunit
remove unused import
first Commit
add to method test_savePlaylist testing id and name
first Commit
Add element defaultRollback set to false in @TransactionConfiguration
because we do not rolled back data.

Add boolean variable setUpIsDone initialize with false, this variable is
used in method setUp where is responsible for stop perform method when
is have value true otherwise save Song to Database.

Add description to all method assertEquals because we need to know who
method is called.
removed
first Commit
first Commit
removed unused import