removed useless v_count variable and replaced it by using i loop variable

test/QueueT.vhd

@@ -21,29 +21,25 @@ begin
 
   SimpleQueueTestP : process is
     variable v_data  : std_logic_vector(63 downto 0);
-    variable v_count : natural := 0;
   begin
     -- check initial emptiness
     assert sv_simple_queue.is_empty
       report "ERROR: queue should be empty!"
       severity failure;
     for i in 0 to 63 loop
-      sv_simple_queue.push(std_logic_vector(to_unsigned(v_count, 64)));
-      v_count := v_count + 1;
+      sv_simple_queue.push(std_logic_vector(to_unsigned(i, 64)));
     end loop;
     -- check that it's full
     assert sv_simple_queue.is_full
       report "ERROR: queue should be full!"
       severity failure;
     -- empty the queue
-    v_count := 0;
     for i in 0 to 63 loop
       sv_simple_queue.pop(v_data);
-      assert v_data = std_logic_vector(to_unsigned(v_count, 64))
-        report "ERROR: read data should be " & integer'image(v_count) &
+      assert v_data = std_logic_vector(to_unsigned(i, 64))
+        report "ERROR: read data should be " & integer'image(i) &
                " instead of " & integer'image(to_integer(unsigned(v_data)))
         severity failure;
-      v_count := v_count + 1;
     end loop;
     -- check emptiness
     assert sv_simple_queue.is_empty
@@ -56,29 +52,25 @@ begin
 
   ListQueueTestP : process is
     variable v_data  : std_logic_vector(63 downto 0);
-    variable v_count : natural := 0;
   begin
     -- check initial emptiness
     assert sv_list_queue.is_empty
       report "ERROR: queue should be empty!"
       severity failure;
     for i in 0 to 63 loop
-      sv_list_queue.push(std_logic_vector(to_unsigned(v_count, 64)));
-      v_count := v_count + 1;
+      sv_list_queue.push(std_logic_vector(to_unsigned(i, 64)));
     end loop;
     -- check that it's full
     assert sv_list_queue.is_full
       report "ERROR: queue should be full!"
       severity failure;
     -- empty the queue
-    v_count := 0;
     for i in 0 to 63 loop
       sv_list_queue.pop(v_data);
-      assert v_data = std_logic_vector(to_unsigned(v_count, 64))
-        report "ERROR: read data should be " & integer'image(v_count) &
+      assert v_data = std_logic_vector(to_unsigned(i, 64))
+        report "ERROR: read data should be " & integer'image(i) &
                " instead of " & integer'image(to_integer(unsigned(v_data)))
         severity failure;
-      v_count := v_count + 1;
     end loop;
     -- check emptiness
     assert sv_list_queue.is_empty