setupaptarchive
-testequal "Listing...
-bar/testing 2 all [upgradable from: 1]" apt list --upgradable
+testsuccessequal "Listing...
+bar/testing 2 all [upgradable from: 1]
+N: There is 1 additional version. Please use the '-a' switch to see it" apt list --upgradable
-testequal "Listing...
+testsuccessequal "Listing...
bar/testing 2 all [upgradable from: 1]
foo/testing,now 1 all [installed]" apt list