[Worker] This test tries calling various filesystem functions with null arguments. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Starting worker: ../resources/null-arguments-worker.js PASS [Worker] fileSystem.root.moveTo(null, 'x') threw exception TypeError: Failed to execute 'moveTo' on 'EntrySync': parameter 1 is not of type 'DirectoryEntrySync'.. PASS [Worker] fileSystem.root.copyTo(null, 'x') threw exception TypeError: Failed to execute 'copyTo' on 'EntrySync': parameter 1 is not of type 'DirectoryEntrySync'.. PASS [Worker] writer.write(null) threw exception TypeError: Failed to execute 'write' on 'FileWriterSync': parameter 1 is not of type 'Blob'.. PASS successfullyParsed is true TEST COMPLETE