[ 10 { "a" "b" "c" } nth ] must-fail
[ "hi" -2 { "a" "b" "c" } set-nth ] must-fail
[ "hi" 10 { "a" "b" "c" } set-nth ] must-fail
-[ f ] [ { "a" "b" "c" } dup clone eq? ] unit-test
-[ "hi" ] [ "hi" 1 { "a" "b" "c" } clone [ set-nth ] keep second ] unit-test
-[ V{ "a" "b" "c" } ] [ { "a" "b" "c" } >vector ] unit-test
-[ f ] [ { "a" "b" "c" } dup >array eq? ] unit-test
-[ t ] [ { "a" "b" "c" } dup { } like eq? ] unit-test
-[ t ] [ { "a" "b" "c" } dup dup length vector boa underlying>> eq? ] unit-test
-[ V{ "a" "b" "c" } ] [ { "a" "b" "c" } V{ } like ] unit-test
-[ { "a" "b" "c" } ] [ { "a" } { "b" "c" } append ] unit-test
-[ { "a" "b" "c" "d" "e" } ]
+{ f } [ { "a" "b" "c" } dup clone eq? ] unit-test
+{ "hi" } [ "hi" 1 { "a" "b" "c" } clone [ set-nth ] keep second ] unit-test
+{ V{ "a" "b" "c" } } [ { "a" "b" "c" } >vector ] unit-test
+{ f } [ { "a" "b" "c" } dup >array eq? ] unit-test
+{ t } [ { "a" "b" "c" } dup { } like eq? ] unit-test
+{ t } [ { "a" "b" "c" } dup dup length vector boa underlying>> eq? ] unit-test
+{ V{ "a" "b" "c" } } [ { "a" "b" "c" } V{ } like ] unit-test
+{ { "a" "b" "c" } } [ { "a" } { "b" "c" } append ] unit-test
+{ { "a" "b" "c" "d" "e" } }
[ { "a" } { "b" "c" } { "d" "e" } 3append ] unit-test
[ -1 f <array> ] must-fail