It would be useful to have a tool which could mock up a user database, folders database and messages files so that we can easily test patches that should be tested against an aged data set. I imagine the tool would live in src/utils/, contain git-style subcommands and would be used like: $ mwmock users --count 50 --deleted 20 path/to/mwdir/ which would generate 50 random users in path/to/mwdir/users.bb with a 20% chance of each user being marked as deleted. `mwmock folders` would work similarly to create new folders. `mwmock messages` would need an option to specify which folder to create the messages in but it would be useful for that functionality to be available through `mwmock folders` too, since the folder names will be random. See src/user.[ch], src/folders.[ch], src/mesg.h and src/client/add.c for how the entries are created. All entries should be generated such that their fields are valid, whatever valid means. `mwmock` should print any errors to stderr and exit non-zero on failure and zero on success so that it can be used in scripts.