From 2714a5eac166e1d68d94b0830c0412229df3323b Mon Sep 17 00:00:00 2001
From: unknown <harshavardhanmundada@gmail.com>
Date: Thu, 18 Dec 2025 19:41:20 +0530
Subject: [PATCH] Add test cases to extend bit_test coverage to signed integers

---
 test/format-test.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test/format-test.cc b/test/format-test.cc
index b7496085..41527460 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -169,6 +169,11 @@ TEST(util_test, bit_cast) {
   EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), 42ull);
   s = fmt::detail::bit_cast<uint32_pair>(~uint64_t{0});
   EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), ~0ull);
+
+  int32_t i = -1;
+  auto u = fmt::detail::bit_cast<uint32_t>(i);
+  EXPECT_EQ(u, 0xffffffffu);
+  EXPECT_EQ(fmt::detail::bit_cast<int32_t>(u), -1);
 }
 
 // Increment a number in a string.