Update upstream source from tag 'upstream/1.21.2'

Update to upstream version '1.21.2'
with Debian dir e1311d68311ab5a6c4ef3871daa55e56eab958ba

1 files changed, 6 insertions, 2 deletions

diff --git a/test/test_util.py b/test/test_util.py
index 3cf3d68..c269c9e 100644
--- a/test/test_util.py
+++ b/test/test_util.py
@@ -385,8 +385,6 @@ class TestOther(unittest.TestCase):
             expr()
 
     def test_build_duration_func(self, f=util.build_duration_func):
-        for v in (0, 0.0, "", None, (), []):
-            self.assertIsNone(f(v))
 
         def test_single(df, v):
             for _ in range(10):
@@ -398,6 +396,12 @@ class TestOther(unittest.TestCase):
                 self.assertGreaterEqual(v, lower)
                 self.assertLessEqual(v, upper)
 
+        for v in (0, 0.0, "", None, (), []):
+            self.assertIsNone(f(v))
+
+        for v in (0, 0.0, "", None, (), []):
+            test_single(f(v, 1.0), 1.0)
+
         test_single(f(3), 3)
         test_single(f(3.0), 3.0)
         test_single(f("3"), 3)