Tests correct behavior of event.dataTransfer.setData/getData for 'URL', 'text/uri-list' and 'text/plain'

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


--- Test set/get 'URL':
--- Test set/get 'URL' with multiple URLs:
--- Test set/get 'text/uri-list':
--- Test set/get 'text/uri-list' using '\n':
--- Test set 'text/uri-list', get 'URL':
--- Test set 'URL', get 'text/uri-list':
--- Test set 'text/uri-list', get 'URL', using only '\n':
--- Test set/get 'text/uri-list' with comments:
--- Test set 'text/uri-list', get 'URL' with comments:
--- Test set 'text/uri-list', get 'URL' with only comments:
--- Test set/get 'text/plain':
--- Test set 'text/plain', get 'text':
--- Test set 'text', get 'text/plain':
--- Test set/get 'text':
PASS successfullyParsed is true

TEST COMPLETE