diff --git a/graph-lib/graph/queue.lp2.rkt b/graph-lib/graph/queue.lp2.rkt
index 764f4c0f..3aea62b7 100644
--- a/graph-lib/graph/queue.lp2.rkt
+++ b/graph-lib/graph/queue.lp2.rkt
@@ -402,19 +402,38 @@ was a tag requested.
            (require (submod "..")
                     typed/rackunit)
            
-           ((inst fold-queue-sets-immutable-tags
-                  Integer
-                  Void
-                  String
-                  (List 'a Integer String))
-            (set 10 11 12)
-            (void)
-            (λ (e acc) (values (format "{~a}" e) acc))
-            (λ (e acc x get-tag)
-              (let*-values ([(t1 acc1 x1) (get-tag (if (even? e)
-                                                       (floor (/ e 2))
-                                                       (+ (* 3 e) 1))
-                                                   acc
-                                                   x)]
-                            [(t2 acc2 x2) (get-tag 127 acc1 x1)])
-                (values (list 'a e t1) acc2 x2))))))]
+           (let-values
+               ([(h t _)
+                 ((inst fold-queue-sets-immutable-tags
+                        Integer
+                        Void
+                        String
+                        (List 'a Integer String))
+                  (set 6 7)
+                  (void)
+                  (λ (e acc) (values (format "{~a}" e) acc))
+                  (λ (e acc x get-tag)
+                    (let*-values ([(t1 acc1 x1) (get-tag (if (even? e)
+                                                             (floor (/ e 2))
+                                                             (+ (* 3 e) 1))
+                                                         acc
+                                                         x)]
+                                  [(t2 acc2 x2) (get-tag 85 acc1 x1)])
+                      (values (list 'a e t1) acc2 x2))))])
+             (check-equal? (sort (hash-keys h) <)
+                           (sort '(7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1
+                                     6 3
+                                     85 256 128 64 32)
+                                 <))
+             (check-true (set=? (set-remove
+                                 (set-remove
+                                  (set-remove(list->set (hash-keys h)) 7)
+                                  6)
+                                 85)
+                                (list->set
+                                 (map (λ ([x : (List 'a Integer String)])
+                                        (let ([s (caddr x)])
+                                          (string->number
+                                           (substring s 1 (- (string-length s)
+                                                             1)))))
+                                      (hash-values h))))))))]
diff --git a/graph-lib/lib/__DEBUG__.rkt b/graph-lib/lib/__DEBUG__.rkt
deleted file mode 100644
index bc67903c..00000000
--- a/graph-lib/lib/__DEBUG__.rkt
+++ /dev/null
@@ -1,36 +0,0 @@
-#lang racket
-(require "low-untyped.rkt")
-
-(with-syntax ([((foo ...) ...) #'((aa bb cc) (x1 x2))])
-  (define-temp-ids "___~a.truc" ((foo ...) ...) #:first-base fst)
-  (displayln (syntax->datum #'((___foo.truc ...) ...)))
-  (displayln (syntax->datum #'(fst ___fst.truc))))
-
-(newline)
-
-(with-syntax ([(foo ...) #'(aa bb cc)])
-  (define-temp-ids "___~a.truc" (foo ...) #:first-base fst)
-  (displayln (syntax->datum #'(___foo.truc ...)))
-  (displayln (syntax->datum #'(fst ___fst.truc))))
-
-(newline)
-
-(with-syntax ([foo #'aa])
-  (define-temp-ids "___~a.truc" foo)
-  (displayln (syntax->datum #'___foo.truc))
-  (displayln (syntax->datum #'(fst ___fst.truc))))
-
-(newline)
-
-(with-syntax ([((foo ...) ...) #'((aa bb cc) (x1 x2))])
-  (define-temp-ids "___~a.truc" ((foo ...) ...) #:first-base fst)
-  (displayln (syntax->datum #'(___foo.truc ... ...)))
-  (displayln (syntax->datum #'(fst ___fst.truc))))
-
-(newline)
-
-(define a 1)
-(+ a a)
-
-(module t typed/racket
-  (require "low.rkt"))
\ No newline at end of file
diff --git a/graph-lib/lib/test-define-temp-ids.rkt b/graph-lib/lib/test-define-temp-ids.rkt
new file mode 100644
index 00000000..087aab44
--- /dev/null
+++ b/graph-lib/lib/test-define-temp-ids.rkt
@@ -0,0 +1,26 @@
+#lang racket
+(require "low-untyped.rkt")
+
+(with-syntax ([((foo ...) ...) #'((aa bb cc) (x1 x2))])
+  (define-temp-ids "___~a.truc" ((foo ...) ...) #:first-base fst)
+  (syntax->datum #'((___foo.truc ...) ...))
+  (syntax->datum #'(fst ___fst.truc))
+  (void))
+
+(with-syntax ([(foo ...) #'(aa bb cc)])
+  (define-temp-ids "___~a.truc" (foo ...) #:first-base fst)
+  (syntax->datum #'(___foo.truc ...))
+  (syntax->datum #'(fst ___fst.truc))
+  (void))
+
+(with-syntax ([foo #'aa])
+  (define-temp-ids "___~a.truc" foo)
+  (syntax->datum #'___foo.truc)
+  (syntax->datum #'(fst ___fst.truc))
+  (void))
+
+(with-syntax ([((foo ...) ...) #'((aa bb cc) (x1 x2))])
+  (define-temp-ids "___~a.truc" ((foo ...) ...) #:first-base fst)
+  (syntax->datum #'(___foo.truc ... ...))
+  (syntax->datum #'(fst ___fst.truc))
+  (void))