convert usage of fail* to assert*
diff --git a/Lib/test/test_unary.py b/Lib/test/test_unary.py
index 9854f64..598fca8 100644
--- a/Lib/test/test_unary.py
+++ b/Lib/test/test_unary.py
@@ -6,32 +6,32 @@
 class UnaryOpTestCase(unittest.TestCase):
 
     def test_negative(self):
-        self.assert_(-2 == 0 - 2)
-        self.assert_(-0 == 0)
-        self.assert_(--2 == 2)
-        self.assert_(-2L == 0 - 2L)
-        self.assert_(-2.0 == 0 - 2.0)
-        self.assert_(-2j == 0 - 2j)
+        self.assertTrue(-2 == 0 - 2)
+        self.assertTrue(-0 == 0)
+        self.assertTrue(--2 == 2)
+        self.assertTrue(-2L == 0 - 2L)
+        self.assertTrue(-2.0 == 0 - 2.0)
+        self.assertTrue(-2j == 0 - 2j)
 
     def test_positive(self):
-        self.assert_(+2 == 2)
-        self.assert_(+0 == 0)
-        self.assert_(++2 == 2)
-        self.assert_(+2L == 2L)
-        self.assert_(+2.0 == 2.0)
-        self.assert_(+2j == 2j)
+        self.assertTrue(+2 == 2)
+        self.assertTrue(+0 == 0)
+        self.assertTrue(++2 == 2)
+        self.assertTrue(+2L == 2L)
+        self.assertTrue(+2.0 == 2.0)
+        self.assertTrue(+2j == 2j)
 
     def test_invert(self):
-        self.assert_(-2 == 0 - 2)
-        self.assert_(-0 == 0)
-        self.assert_(--2 == 2)
-        self.assert_(-2L == 0 - 2L)
+        self.assertTrue(-2 == 0 - 2)
+        self.assertTrue(-0 == 0)
+        self.assertTrue(--2 == 2)
+        self.assertTrue(-2L == 0 - 2L)
 
     def test_no_overflow(self):
         nines = "9" * 32
-        self.assert_(eval("+" + nines) == eval("+" + nines + "L"))
-        self.assert_(eval("-" + nines) == eval("-" + nines + "L"))
-        self.assert_(eval("~" + nines) == eval("~" + nines + "L"))
+        self.assertTrue(eval("+" + nines) == eval("+" + nines + "L"))
+        self.assertTrue(eval("-" + nines) == eval("-" + nines + "L"))
+        self.assertTrue(eval("~" + nines) == eval("~" + nines + "L"))
 
     def test_negation_of_exponentiation(self):
         # Make sure '**' does the right thing; these form a