diff --git a/Lib/test/test_new.py b/Lib/test/test_new.py
index af26f01..30433ae 100644
--- a/Lib/test/test_new.py
+++ b/Lib/test/test_new.py
@@ -1,4 +1,4 @@
-from test_support import verbose
+from test_support import verbose, verify
 import sys
 import new
 
@@ -25,6 +25,14 @@
 c = new.instance(C, {'yolks': 3})
 if verbose:
     print c
+o = new.instance(C)
+verify(o.__dict__ == {},
+       "new __dict__ should be empty")
+del o
+o = new.instance(C, None)
+verify(o.__dict__ == {},
+       "new __dict__ should be empty")
+del o
 
 def break_yolks(self):
     self.yolks = self.yolks - 2
@@ -33,11 +41,11 @@
 if verbose:
     print im
 
-if c.get_yolks() != 3 and c.get_more_yolks() != 6:
-    print 'Broken call of hand-crafted class instance'
+verify(c.get_yolks() == 3 and c.get_more_yolks() == 6,
+       'Broken call of hand-crafted class instance')
 im()
-if c.get_yolks() != 1 and c.get_more_yolks() != 4:
-    print 'Broken call of hand-crafted instance method'
+verify(c.get_yolks() == 1 and c.get_more_yolks() == 4,
+       'Broken call of hand-crafted instance method')
 
 codestr = '''
 a = 1
@@ -53,8 +61,8 @@
 if verbose:
     print func
 func()
-if g['c'] != 3:
-    print 'Could not create a proper function object'
+verify(g['c'] == 3,
+       'Could not create a proper function object')
 
 # bogus test of new.code()
 print 'new.code()'