+
+insertinstalledpackage 'foo' 'amd64' '1' 'Depends: libfoo
+Essential: yes'
+insertinstalledpackage 'libfoo' 'amd64' '1'
+testequal 'Reading package lists...
+Building dependency tree...
+The following packages will be REMOVED:
+ foo* libfoo*
+WARNING: The following essential packages will be removed.
+This should NOT be done unless you know exactly what you are doing!
+ foo libfoo (due to foo)
+0 upgraded, 0 newly installed, 2 to remove and 4 not upgraded.
+Purg foo [1]
+Purg libfoo [1]' aptget purge libfoo -s