Remove unnecessary check and few more comments

test/core/bad_client/bad_client.cc

@@ -153,8 +153,7 @@ void grpc_run_client_side_validator(grpc_bad_client_arg* arg, uint32_t flags,
                          client_cq, grpc_timeout_milliseconds_to_deadline(100),
                          nullptr)
                          .type == GRPC_QUEUE_TIMEOUT);
-        } while (!gpr_event_get(&read_done_event) ||
-                 !gpr_event_get(&done_write));
+        } while (!gpr_event_get(&read_done_event));
         if (arg->client_validator(&incoming, arg->client_validator_arg)) break;
         gpr_log(GPR_INFO,
                 "client validator failed; trying additional read "
@@ -165,12 +164,13 @@ void grpc_run_client_side_validator(grpc_bad_client_arg* arg, uint32_t flags,
     grpc_core::ExecCtx::Get()->Flush();
   }
 
-  /* If flags is non-zero, it is time to shutdown the client */
-  if (flags) {
+  /* If the request was too large, then we need to forcefully shut down the
+   * client, so that the write can be considered completed */
+  if (flags & GRPC_BAD_CLIENT_LARGE_REQUEST) {
     shutdown_client(&sfd->client);
   }
 
-  /* Make sure that the server is done writing */
+  /* Make sure that the client is done writing */
   while (!gpr_event_get(&done_write)) {
     GPR_ASSERT(
         grpc_completion_queue_next(

test/core/bad_client/bad_client.h

@@ -44,6 +44,7 @@ struct grpc_bad_client_arg {
   size_t client_payload_length;
 };
 
+/* Flags for grpc_run_bad_client_test */
 #define GRPC_BAD_CLIENT_DISCONNECT 1
 #define GRPC_BAD_CLIENT_LARGE_REQUEST 2
 
@@ -53,6 +54,9 @@ struct grpc_bad_client_arg {
  * payload, run client_validator to make sure that the response is as expected.
  * Also execute \a server_validator in a separate thread to assert that the
  * bytes are handled as expected.
+ *
+ * The flags are only applicable to the last validator in the array. (This can
+ * be changed in the future if necessary)
  */
 void grpc_run_bad_client_test(
     grpc_bad_client_server_side_validator server_validator,