Tests for the case of zero padding _and_ a zero minimum width

python · mdickinson · Jan 22, 2023 · Dec 3, 2022 · Dec 3, 2022 · Dec 4, 2022
commit aba35f37bed36c160ff3ecf1c04e1ad07d77ebcf
diff --git a/Lib/test/test_fractions.py b/Lib/test/test_fractions.py
@@ -1007,6 +1007,8 @@ def test_format_f_presentation_type(self):
             (F(2, 3), '<0.2f', '0.67'),
             (F(2, 3), '^0.2f', '0.67'),
             (F(2, 3), '=0.2f', '0.67'),
+            # Corner case: zero-padding _and_ a zero minimum width.
+            (F(2, 3), '00.2f', '0.67'),
             # Thousands separator (only affects portion before the point)
             (F(2, 3), ',.2f', '0.67'),
             (F(2, 3), ',.7f', '0.6666667'),
@@ -1169,6 +1171,8 @@ def test_invalid_formats(self):
             "=010f",
             "=010g",
             "=010%",
+            '>00.2f',
+            '>00f',
             # Missing precision
             ".e",
             ".f",