3 "a" pick set-at
4 "d" pick set-at
[ values ] [ keys ] [ assoc-size ] tri
-] unit-test
+] unit-test
{ f 1 } [
<linked-hash> 1 "c" pick set-at
2 "b" pick set-at
"c" over delete-at
"c" over at swap assoc-size
-] unit-test
+] unit-test
{ { } 0 } [
<linked-hash> 1 "a" pick set-at