diff --git a/quic/test_tools/quic_config_peer.cc b/quic/test_tools/quic_config_peer.cc
index 41527c2..20463ab 100644
--- a/quic/test_tools/quic_config_peer.cc
+++ b/quic/test_tools/quic_config_peer.cc
@@ -97,5 +97,14 @@
   config->max_packet_size_.SetReceivedValue(max_packet_size);
 }
 
+// static
+void QuicConfigPeer::ReceiveIdleNetworkTimeout(QuicConfig* config,
+                                               HelloType hello_type,
+                                               uint32_t idle_timeout_seconds) {
+  std::string error_details;
+  config->idle_network_timeout_seconds_.ReceiveValue(
+      idle_timeout_seconds, hello_type, &error_details);
+}
+
 }  // namespace test
 }  // namespace quic
diff --git a/quic/test_tools/quic_config_peer.h b/quic/test_tools/quic_config_peer.h
index 61e2ef2..b52bf42 100644
--- a/quic/test_tools/quic_config_peer.h
+++ b/quic/test_tools/quic_config_peer.h
@@ -58,6 +58,10 @@
 
   static void SetReceivedMaxPacketSize(QuicConfig* config,
                                        uint32_t max_packet_size);
+
+  static void ReceiveIdleNetworkTimeout(QuicConfig* config,
+                                        HelloType hello_type,
+                                        uint32_t idle_timeout_seconds);
 };
 
 }  // namespace test
diff --git a/quic/test_tools/quic_connection_peer.cc b/quic/test_tools/quic_connection_peer.cc
index b38b64e..21a0105 100644
--- a/quic/test_tools/quic_connection_peer.cc
+++ b/quic/test_tools/quic_connection_peer.cc
@@ -348,5 +348,29 @@
   return count;
 }
 
+// static
+QuicNetworkBlackholeDetector& QuicConnectionPeer::GetBlackholeDetector(
+    QuicConnection* connection) {
+  return connection->blackhole_detector_;
+}
+
+// static
+QuicAlarm* QuicConnectionPeer::GetBlackholeDetectorAlarm(
+    QuicConnection* connection) {
+  return connection->blackhole_detector_.alarm_.get();
+}
+
+// static
+QuicTime QuicConnectionPeer::GetPathDegradingDeadline(
+    QuicConnection* connection) {
+  return connection->blackhole_detector_.path_degrading_deadline_;
+}
+
+// static
+QuicTime QuicConnectionPeer::GetBlackholeDetectionDeadline(
+    QuicConnection* connection) {
+  return connection->blackhole_detector_.blackhole_deadline_;
+}
+
 }  // namespace test
 }  // namespace quic
diff --git a/quic/test_tools/quic_connection_peer.h b/quic/test_tools/quic_connection_peer.h
index e0a97b8..ab14190 100644
--- a/quic/test_tools/quic_connection_peer.h
+++ b/quic/test_tools/quic_connection_peer.h
@@ -135,6 +135,15 @@
                                         const std::string& details);
 
   static size_t GetNumEncryptionLevels(QuicConnection* connection);
+
+  static QuicNetworkBlackholeDetector& GetBlackholeDetector(
+      QuicConnection* connection);
+
+  static QuicAlarm* GetBlackholeDetectorAlarm(QuicConnection* connection);
+
+  static QuicTime GetPathDegradingDeadline(QuicConnection* connection);
+
+  static QuicTime GetBlackholeDetectionDeadline(QuicConnection* connection);
 };
 
 }  // namespace test