commit 3c4e8a9be2a7900580e52b00cdea4f0f7f0a40a9
author Yash Tibrewal <yashkt@google.com> Wed May 08 15:46:32 2019 -0700
committer Yash Tibrewal <yashkt@google.com> Wed May 08 15:46:32 2019 -0700
tree 4e3f2e40fe5f4e3edd6244a6f735a69aadcdf962
parent b53465c1061c9fd31e168046a1a0ac26c13da130

Fix test failure

src/core/ext/filters/client_channel/client_channel.cc

diff --git a/src/core/ext/filters/client_channel/client_channel.cc b/src/core/ext/filters/client_channel/client_channel.cc
index 1dc6ac4..9144df9 100644
--- a/src/core/ext/filters/client_channel/client_channel.cc
+++ b/src/core/ext/filters/client_channel/client_channel.cc
@@ -1265,8 +1265,12 @@
        strcmp(service_config->service_config_json(),
               chand->saved_service_config_->service_config_json()) != 0);
   if (service_config_changed) {
-    service_config_json.reset(
-        gpr_strdup(service_config->service_config_json()));
+    if (service_config != nullptr) {
+      service_config_json.reset(
+          gpr_strdup(service_config->service_config_json()));
+    } else {
+      service_config_json.reset(gpr_strdup(""));
+    }
     if (grpc_client_channel_routing_trace.enabled()) {
       gpr_log(GPR_INFO, "chand=%p: resolver returned service config: \"%s\"",
               chand, service_config_json.get());