2 files changed, 17 insertions, 18 deletions

diff --git a/test/cpp/interop/client_helper.cc b/test/cpp/interop/client_helper.cc
index c8b1e505c1..c171969e14 100644
--- a/test/cpp/interop/client_helper.cc
+++ b/test/cpp/interop/client_helper.cc
@@ -97,30 +97,25 @@ std::shared_ptr<Channel> CreateChannelForTestCase(
   snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
            FLAGS_server_port);
 
+  std::shared_ptr<CallCredentials> creds;
   if (test_case == "compute_engine_creds") {
-    std::shared_ptr<CallCredentials> creds;
     GPR_ASSERT(FLAGS_use_tls);
     creds = GoogleComputeEngineCredentials();
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_use_tls, !FLAGS_use_test_ca, creds);
+    GPR_ASSERT(creds);
   } else if (test_case == "jwt_token_creds") {
-    std::shared_ptr<CallCredentials> creds;
     GPR_ASSERT(FLAGS_use_tls);
     grpc::string json_key = GetServiceAccountJsonKey();
     std::chrono::seconds token_lifetime = std::chrono::hours(1);
     creds =
         ServiceAccountJWTAccessCredentials(json_key, token_lifetime.count());
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_use_tls, !FLAGS_use_test_ca, creds);
+    GPR_ASSERT(creds);
   } else if (test_case == "oauth2_auth_token") {
     grpc::string raw_token = GetOauth2AccessToken();
-    std::shared_ptr<CallCredentials> creds = AccessTokenCredentials(raw_token);
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_use_tls, !FLAGS_use_test_ca, creds);
-  } else {
-    return CreateTestChannel(host_port, FLAGS_server_host_override,
-                             FLAGS_use_tls, !FLAGS_use_test_ca);
+    creds = AccessTokenCredentials(raw_token);
+    GPR_ASSERT(creds);
   }
+  return CreateTestChannel(host_port, FLAGS_server_host_override, FLAGS_use_tls,
+                           !FLAGS_use_test_ca, creds);
 }
 
 }  // namespace testing
diff --git a/test/cpp/interop/metrics_client.cc b/test/cpp/interop/metrics_client.cc
index cc304f2e89..c8c2215fab 100644
--- a/test/cpp/interop/metrics_client.cc
+++ b/test/cpp/interop/metrics_client.cc
@@ -42,13 +42,15 @@
 #include "test/cpp/util/metrics_server.h"
 #include "test/cpp/util/test_config.h"
 
-DEFINE_string(metrics_server_address, "",
+int kDeadlineSecs = 10;
+
+DEFINE_string(metrics_server_address, "localhost:8081",
               "The metrics server addresses in the fomrat <hostname>:<port>");
+DEFINE_int32(deadline_secs, kDeadlineSecs,
+             "The deadline (in seconds) for RCP call");
 DEFINE_bool(total_only, false,
             "If true, this prints only the total value of all gauges");
 
-int kDeadlineSecs = 10;
-
 using grpc::testing::EmptyMessage;
 using grpc::testing::GaugeResponse;
 using grpc::testing::MetricsService;
@@ -56,12 +58,13 @@ using grpc::testing::MetricsServiceImpl;
 
 // Prints the values of all Gauges (unless total_only is set to 'true' in which
 // case this only prints the sum of all gauge values).
-bool PrintMetrics(std::unique_ptr<MetricsService::Stub> stub, bool total_only) {
+bool PrintMetrics(std::unique_ptr<MetricsService::Stub> stub, bool total_only,
+                  int deadline_secs) {
   grpc::ClientContext context;
   EmptyMessage message;
 
   std::chrono::system_clock::time_point deadline =
-      std::chrono::system_clock::now() + std::chrono::seconds(kDeadlineSecs);
+      std::chrono::system_clock::now() + std::chrono::seconds(deadline_secs);
 
   context.set_deadline(deadline);
 
@@ -108,7 +111,8 @@ int main(int argc, char** argv) {
   std::shared_ptr<grpc::Channel> channel(grpc::CreateChannel(
       FLAGS_metrics_server_address, grpc::InsecureChannelCredentials()));
 
-  if (!PrintMetrics(MetricsService::NewStub(channel), FLAGS_total_only)) {
+  if (!PrintMetrics(MetricsService::NewStub(channel), FLAGS_total_only,
+                    FLAGS_deadline_secs)) {
     return 1;
   }