The current version of django-treebeard has 95% test coverage:
Name Stmts Exec Cover Missing
----------------------------------------------------
treebeard/__init__ 2 2 100%
treebeard/al_tree 202 198 98% 166, 252, 409-410
treebeard/exceptions 5 5 100%
treebeard/forms 75 47 62% 71, 110-116, 132, 140, 146-177
treebeard/models 153 129 84% 54, 188, 199, 237, 247, 255, 302, 313, 323, 347, 483, 505, 546, 556, 588, 602, 663, 681-684, 689, 701-704
treebeard/mp_tree 399 389 97% 383, 538, 998, 1106, 1143-1150, 1175-1179
treebeard/ns_tree 330 327 99% 405-406, 622
treebeard/tests 871 856 98% 66, 80, 99, 110, 120, 134, 143, 151, 161, 170, 186, 1667, 1687-1689
----------------------------------------------------
TOTAL 2037 1953 95%
Bugs may be lurking there. When I added a test for a few lines without coverage in 8655b0025792
,
a bug was exposed, that was fixed in 5aa9c98fac60
Write missing tests.