check_compare_id

Author: maurycy

Lib/test/seq_tests.py

@@ -250,10 +250,7 @@ def __eq__(self, other):
         checklast = self.type2test([StopCompares(), 1])
         self.assertRaises(DoNotTestEq, checklast.__contains__, 1)
 
-    def test_compare_nan(self):
-        nan = float("nan")
-        a = self.type2test([nan])
-        b = self.type2test([nan])
+    def check_compare_id(self, a, b):
         self.assertTrue(a == a)
         self.assertFalse(a != a)
         self.assertTrue(a == b)
@@ -262,30 +259,25 @@ def test_compare_nan(self):
         self.assertFalse(a < b)
         self.assertFalse(a > b)
 
+    def test_compare_nan(self):
+        nan = float("nan")
+        a = self.type2test([nan])
+        b = self.type2test([nan])
+        self.check_compare_id(a, b)
+
     def test_compare_decimal_nan(self):
         import decimal
         nan = decimal.Decimal("NaN")
         a = self.type2test([nan])
         b = self.type2test([nan])
-        self.assertTrue(a == a)
-        self.assertFalse(a != a)
-        self.assertTrue(a == b)
-        self.assertFalse(a != b)
-        self.assertFalse(a < a)
-        self.assertFalse(a < b)
-        self.assertFalse(a > b)
+        self.check_compare_id(a, b)
 
     def test_compare_signed_zero(self):
         a = self.type2test([0.0])
         b = self.type2test([-0.0])
-        self.assertTrue(a == a)
-        self.assertFalse(a != a)
+        self.check_compare_id(a, b)
         self.assertTrue(b == b)
         self.assertFalse(b != b)
-        self.assertTrue(a == b)
-        self.assertFalse(a != b)
-        self.assertFalse(a > b)
-        self.assertFalse(a < b)
 
     def test_len(self):
         self.assertEqual(len(self.type2test()), 0)