1 files changed, 30 insertions, 0 deletions
diff --git a/libc/test/src/strings/bzero_test.cpp b/libc/test/src/strings/bzero_test.cpp
new file mode 100644
index 000000000000..4d4112f4be8e
--- /dev/null
+++ b/libc/test/src/strings/bzero_test.cpp
@@ -0,0 +1,30 @@
+//===-- Unittests for bzero -----------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/macros/config.h"
+#include "src/strings/bzero.h"
+#include "test/UnitTest/Test.h"
+#include "test/src/string/memory_utils/memory_check_utils.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+// Adapt CheckMemset signature to bzero.
+static inline void Adaptor(cpp::span<char> p1, uint8_t value, size_t size) {
+  LIBC_NAMESPACE::bzero(p1.begin(), size);
+}
+
+TEST(LlvmLibcBzeroTest, SizeSweep) {
+  static constexpr size_t kMaxSize = 400;
+  Buffer DstBuffer(kMaxSize);
+  for (size_t size = 0; size < kMaxSize; ++size) {
+    auto dst = DstBuffer.span().subspan(0, size);
+    ASSERT_TRUE((CheckMemset<Adaptor>(dst, 0, size)));
+  }
+}
+
+} // namespace LIBC_NAMESPACE_DECL