use std assert use ../std-rfc str export def "test append" [] { assert equal ("foo" | str append "/") "foo/" assert equal (["foo", "bar", "baz"] | str append "/") ["foo/", "bar/", "baz/"] } export def "test prepend" [] { assert equal ("foo" | str prepend "/") "/foo" assert equal (["foo", "bar", "baz"] | str prepend "/") ["/foo", "/bar", "/baz"] }