python-stdlib/datetime: Forget timedelta limits.

lorcap · lorcap · commit c1679990708c · 2021-11-12T14:12:54.000+01:00
MicroPython integer implementation will take care of small and large
deltas.

Signed-off-by: Lorenzo Cappelletti &lt;lorenzo.cappelletti@gmail.com&gt;
diff --git a/python-stdlib/datetime/datetime.py b/python-stdlib/datetime/datetime.py
@@ -57,8 +57,6 @@ def _ord2ymd(n):
 
 
 class timedelta:
-    MINYEAR = -292  # timedelta( 0,  0,  0, -365*584).total_seconds() > -2**63 / 10**9
-    MAXYEAR = 292  # timedelta(23, 59, 59,  365*584).total_seconds() < (2**63 - 1) / 10**9
 
     def __init__(
         self,
diff --git a/python-stdlib/datetime/test_datetime.py b/python-stdlib/datetime/test_datetime.py
@@ -55,22 +55,19 @@ def test_constructor13(self):
         self.assertEqual(td(milliseconds=0.001), td(microseconds=1))
 
     def test_constant01(self):
-        self.assertTrue(td(0, 0, 0, 365 * td.MINYEAR).total_seconds() >= -(2 ** 63) / 10 ** 9)
+        self.assertIsInstance(td.min, td)
+        self.assertIsInstance(td.max, td)
+        self.assertIsInstance(td.resolution, td)
+        self.assertTrue(td.max > td.min)
 
     def test_constant02(self):
-        self.assertFalse(
-            td(0, 0, 0, 365 * (td.MINYEAR - 1)).total_seconds() >= -(2 ** 63) / 10 ** 9
-        )
+        self.assertEqual(td.min, td(days=-999_999_999))
 
     def test_constant03(self):
-        self.assertTrue(
-            td(23, 59, 59, 365 * td.MAXYEAR).total_seconds() <= (2 ** 63 - 1) / 10 ** 9
-        )
+        self.assertEqual(td.max, td(days=999_999_999, seconds=24 * 3600 - 1, microseconds=10**6 - 1))
 
     def test_constant04(self):
-        self.assertFalse(
-            td(23, 59, 59, 365 * (td.MAXYEAR + 1)).total_seconds() <= (2 ** 63 - 1) / 10 ** 9
-        )
+        self.assertEqual(td.resolution, td(microseconds=1))
 
     def test_computation01(self):
         self.assertEqual(a + b + c, td(7, 6, 10))
