Manual:MakeTestEdits.php

Details
makeTestEdits.php maintenance script allows a developer to made random edits for testing. This is a very helpful feature for those who run test wiki and want to create some random pages to testing a new version or patch.

Options
makeTestEdits.php accepts following three options.

Common error
This means, you are not giving the valid username of an existing user on wiki. If given username contains spaces then please look Tip 1 above.
 * No such user exists.