1 files changed, 45 insertions, 0 deletions
diff --git a/Lib/test/test_capi/test_long.py b/Lib/test/test_capi/test_long.py
index 925fccd660b..a77094588a0 100644
--- a/Lib/test/test_capi/test_long.py
+++ b/Lib/test/test_capi/test_long.py
@@ -643,6 +643,51 @@ class LongTests(unittest.TestCase):
 
         # CRASHES getsign(NULL)
 
+    def test_long_ispositive(self):
+        # Test PyLong_IsPositive()
+        ispositive = _testcapi.pylong_ispositive
+        self.assertEqual(ispositive(1), 1)
+        self.assertEqual(ispositive(123), 1)
+        self.assertEqual(ispositive(-1), 0)
+        self.assertEqual(ispositive(0), 0)
+        self.assertEqual(ispositive(True), 1)
+        self.assertEqual(ispositive(False), 0)
+        self.assertEqual(ispositive(IntSubclass(-1)), 0)
+        self.assertRaises(TypeError, ispositive, 1.0)
+        self.assertRaises(TypeError, ispositive, Index(123))
+
+        # CRASHES ispositive(NULL)
+
+    def test_long_isnegative(self):
+        # Test PyLong_IsNegative()
+        isnegative = _testcapi.pylong_isnegative
+        self.assertEqual(isnegative(1), 0)
+        self.assertEqual(isnegative(123), 0)
+        self.assertEqual(isnegative(-1), 1)
+        self.assertEqual(isnegative(0), 0)
+        self.assertEqual(isnegative(True), 0)
+        self.assertEqual(isnegative(False), 0)
+        self.assertEqual(isnegative(IntSubclass(-1)), 1)
+        self.assertRaises(TypeError, isnegative, 1.0)
+        self.assertRaises(TypeError, isnegative, Index(123))
+
+        # CRASHES isnegative(NULL)
+
+    def test_long_iszero(self):
+        # Test PyLong_IsZero()
+        iszero = _testcapi.pylong_iszero
+        self.assertEqual(iszero(1), 0)
+        self.assertEqual(iszero(-1), 0)
+        self.assertEqual(iszero(0), 1)
+        self.assertEqual(iszero(True), 0)
+        self.assertEqual(iszero(False), 1)
+        self.assertEqual(iszero(IntSubclass(-1)), 0)
+        self.assertEqual(iszero(IntSubclass(0)), 1)
+        self.assertRaises(TypeError, iszero, 1.0)
+        self.assertRaises(TypeError, iszero, Index(123))
+
+        # CRASHES iszero(NULL)
+
     def test_long_asint32(self):
         # Test PyLong_AsInt32() and PyLong_FromInt32()
         to_int32 = _testlimitedcapi.pylong_asint32