Fix errors when seeding

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>
Test Server#remove

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>
Move model tests into their own files

Signed-off-by: Ian Macalinao <ianmacalinao@gmail.com>