- Add more comments for the TCP_INFO struct fields.

PiperOrigin-RevId: 354595623

1 files changed, 4 insertions, 1 deletions

diff --git a/test/syscalls/linux/socket_ip_tcp_generic.cc b/test/syscalls/linux/socket_ip_tcp_generic.cc
index a73987a7e..2c8e5f6f3 100644
--- a/test/syscalls/linux/socket_ip_tcp_generic.cc
+++ b/test/syscalls/linux/socket_ip_tcp_generic.cc
@@ -65,6 +65,9 @@ TEST_P(TCPSocketPairTest, ZeroTcpInfoSucceeds) {
               SyscallSucceeds());
 }
 
+// Copied from include/net/tcp.h.
+constexpr int TCP_CA_OPEN = 0;
+
 TEST_P(TCPSocketPairTest, CheckTcpInfoFields) {
   auto sockets = ASSERT_NO_ERRNO_AND_VALUE(NewSocketPair());
 
@@ -87,7 +90,7 @@ TEST_P(TCPSocketPairTest, CheckTcpInfoFields) {
               SyscallSucceeds());
 
   // Validates the received tcp_info fields.
-  EXPECT_EQ(opt.tcpi_ca_state, 0);
+  EXPECT_EQ(opt.tcpi_ca_state, TCP_CA_OPEN);
   EXPECT_GT(opt.tcpi_snd_cwnd, 0);
   EXPECT_GT(opt.tcpi_rto, 0);
 }