Added more tests for floatformat filter with negative values.

tests/template_tests/filter_tests/test_floatformat.py

@@ -26,7 +26,9 @@ class FunctionTests(SimpleTestCase):
         self.assertEqual(floatformat(7.7), '7.7')
         self.assertEqual(floatformat(7.0), '7')
         self.assertEqual(floatformat(0.7), '0.7')
+        self.assertEqual(floatformat(-0.7), '-0.7')
         self.assertEqual(floatformat(0.07), '0.1')
+        self.assertEqual(floatformat(-0.07), '-0.1')
         self.assertEqual(floatformat(0.007), '0.0')
         self.assertEqual(floatformat(0.0), '0')
         self.assertEqual(floatformat(7.7, 0), '8')