question: public void testCopyMap ( ) { Serializer serializer = new Serializer ( ) ; Map < String , String > map = new HashMap < > ( ) ; map . put ( "foo" , "Hello world!" ) ; map . put ( "bar" , "Hello world again!" ) ; Map < String , String > result = serializer . copy ( map ) ; assertEquals ( map , result ) ; assertEquals ( map . get ( "foo" ) , "Hello world!" ) ; assertEquals ( map . get ( "bar" ) , "Hello world again!" ) ; }
target:  Tests copying a map.