From b419f2e0650ab959a3db0b0ca471269e81abf27f Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 14 Sep 2021 12:51:27 -0700
Subject: [PATCH] Test negative zero parsing to f32

---
 tests/test.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/test.rs b/tests/test.rs
index 2df6d42b4..9fdf26cc7 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -811,10 +811,15 @@ fn test_parse_negative_zero() {
         "-1e-400",
         "-1e-4000000000000000000000000000000000000000000000000",
     ] {
+        assert!(
+            from_str::<f32>(negative_zero).unwrap().is_sign_negative(),
+            "should have been negative: {:?}",
+            negative_zero,
+        );
         assert!(
             from_str::<f64>(negative_zero).unwrap().is_sign_negative(),
             "should have been negative: {:?}",
-            negative_zero
+            negative_zero,
         );
     }
 }