Fixed #30761 -- Prevented floatformat filter from returning a negative zero.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/template_tests/filter_tests/test_floatformat.py b/tests/template_tests/filter_tests/test_floatformat.py
index 9cb838854c..8ad7322af2 100644
--- a/tests/template_tests/filter_tests/test_floatformat.py
+++ b/tests/template_tests/filter_tests/test_floatformat.py
@@ -64,6 +64,16 @@ class FunctionTests(SimpleTestCase):
         self.assertEqual(floatformat(0, 10), '0.0000000000')
         self.assertEqual(floatformat(0.000000000000000000015, 20), '0.00000000000000000002')
 
+    def test_negative_zero_values(self):
+        tests = [
+            (-0.01, -1, '0.0'),
+            (-0.001, 2, '0.00'),
+            (-0.499, 0, '0'),
+        ]
+        for num, decimal_places, expected in tests:
+            with self.subTest(num=num, decimal_places=decimal_places):
+                self.assertEqual(floatformat(num, decimal_places), expected)
+
     def test_infinity(self):
         pos_inf = float(1e30000)
         neg_inf = float(-1e30000)