Add test for server-generated stateless reset.

Because test uses parameters so that the client sometimes generates a long connection ID for the server, it tests that the Stateless Reset Token matches the server-generated connection ID.

PiperOrigin-RevId: 480125128

quiche/quic/core/http/end_to_end_test.cc

diff --git a/quiche/quic/core/http/end_to_end_test.cc b/quiche/quic/core/http/end_to_end_test.cc
index 17bb93b..af39239 100644
--- a/quiche/quic/core/http/end_to_end_test.cc
+++ b/quiche/quic/core/http/end_to_end_test.cc
@@ -4079,6 +4079,24 @@
   client_connection->set_debug_visitor(nullptr);
 }
 
+TEST_P(EndToEndTest, InduceStatelessResetFromServer) {
+  ASSERT_TRUE(Initialize());
+  if (!version_.HasIetfQuicFrames()) {
+    return;
+  }
+  EXPECT_TRUE(client_->client()->WaitForHandshakeConfirmed());
+  SetPacketLossPercentage(100);  // Block PEER_GOING_AWAY message from server.
+  StopServer(true);
+  server_writer_ = new PacketDroppingTestWriter();
+  StartServer();
+  SetPacketLossPercentage(0);
+  // The request should generate a public reset.
+  EXPECT_EQ("", client_->SendSynchronousRequest("/foo"));
+  EXPECT_TRUE(client_->response_headers()->empty());
+  EXPECT_THAT(client_->connection_error(), IsError(QUIC_PUBLIC_RESET));
+  EXPECT_FALSE(client_->connected());
+}
+
 // Send a public reset from the client for a different connection ID.
 // It should be ignored.
 TEST_P(EndToEndTest, ClientSendPublicResetWithDifferentConnectionId) {