python-stdlib/datetime: add more tests.

lorcap · lorcap · commit 267c1532f285 · 2021-11-02T21:25:11.000+01:00
Signed-off-by: Lorenzo Cappelletti &lt;lorenzo.cappelletti@gmail.com&gt;
diff --git a/python-stdlib/datetime/test_datetime.py b/python-stdlib/datetime/test_datetime.py
@@ -1,3 +1,4 @@
+# See https://github.com/python/cpython/blob/3.9/Lib/test/datetimetester.py
 import unittest
 from datetime import\
         timedelta as td,\
@@ -685,6 +686,21 @@ def test_compare17(self):
     def test_compare18(self):
         self.assertFalse(d5 <= d2)
 
+    def test_resolution01(self):
+        self.assertIsInstance(td.min, td)
+
+    def test_resolution02(self):
+        self.assertIsInstance(td.max, td)
+
+    def test_resolution03(self):
+        self.assertIsInstance(td.resolution, td)
+
+    def test_resolution04(self):
+        self.assertTrue(td.max > td.min)
+
+    def test_resolution04(self):
+        self.assertEqual(td.resolution, td(nanoseconds=1))
+
     def test_astimezone01(self):
         self.assertEqual(d3.astimezone(tz.utc), dt(2002, 3, 1, 11, 59, 59, 0, tz.utc))
 
