2 files changed, 29 insertions, 0 deletions
diff --git a/libc/test/include/CMakeLists.txt b/libc/test/include/CMakeLists.txt
index 11e4c3a..3ac5615 100644
--- a/libc/test/include/CMakeLists.txt
+++ b/libc/test/include/CMakeLists.txt
@@ -208,6 +208,16 @@ add_libc_test(
 )
 
 add_libc_test(
+  netinet_in_test
+  SUITE
+    libc_include_tests
+  SRCS
+    netinet_in_test.cpp
+  DEPENDS
+    libc.include.llvm-libc-macros.netinet_in_macros
+)
+
+add_libc_test(
   signbit_test
   SUITE
     libc_include_tests
diff --git a/libc/test/include/netinet_in_test.cpp b/libc/test/include/netinet_in_test.cpp
new file mode 100644
index 0000000..a6c47a7
--- /dev/null
+++ b/libc/test/include/netinet_in_test.cpp
@@ -0,0 +1,19 @@
+//===-- Unittests for netinet/in macro ------------------------------------===//
+//
+// 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 "include/llvm-libc-macros/netinet-in-macros.h"
+#include "test/UnitTest/Test.h"
+
+TEST(LlvmLibcNetinetInTest, IPPROTOMacro) {
+  EXPECT_EQ(IPPROTO_IP, 0);
+  EXPECT_EQ(IPPROTO_ICMP, 1);
+  EXPECT_EQ(IPPROTO_TCP, 6);
+  EXPECT_EQ(IPPROTO_UDP, 17);
+  EXPECT_EQ(IPPROTO_IPV6, 41);
+  EXPECT_EQ(IPPROTO_RAW, 255);
+}