From 790d70c628bd7d2f152758b577196bb5b43f463e Mon Sep 17 00:00:00 2001
From: Marcus Holland-Moritz <github@mhxnet.de>
Date: Mon, 18 Aug 2025 16:19:23 +0200
Subject: [PATCH] test: add `mapped_byte_buffer` test

---
 test/byte_buffer_test.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/byte_buffer_test.cpp b/test/byte_buffer_test.cpp
index 0ce629ec..aa76b5d2 100644
--- a/test/byte_buffer_test.cpp
+++ b/test/byte_buffer_test.cpp
@@ -157,3 +157,16 @@ TEST(byte_buffer_test, block_cache_byte_buffer_mmap) {
   EXPECT_EQ(shared.size(), 12);
   EXPECT_EQ(shared.span().size(), 12);
 }
+
+TEST(byte_buffer_test, mapped_byte_buffer) {
+  static constexpr std::string_view test_data = "Hello, World!";
+
+  auto buf = dwarfs::mapped_byte_buffer::create(std::span(
+      reinterpret_cast<uint8_t const*>(test_data.data()), test_data.size()));
+  static_assert(std::same_as<decltype(buf), dwarfs::shared_byte_buffer>);
+
+  EXPECT_FALSE(buf.empty());
+  EXPECT_EQ(buf.size(), test_data.size());
+  EXPECT_EQ(buf.capacity(), test_data.size());
+  EXPECT_EQ(buf.data(), reinterpret_cast<uint8_t const*>(test_data.data()));
+}