Fix bad_client_window_overflow_test at mac

test/core/bad_client/bad_client.c

@@ -134,9 +134,12 @@ void grpc_run_bad_client_test(
   grpc_endpoint_write(&exec_ctx, sfd.client, &outgoing, &done_write_closure);
   grpc_exec_ctx_finish(&exec_ctx);
 
-  /* Await completion */
+  /* Await completion, unless the request is large and write may not finish
+   * before the peer shuts down. */
+  if (!(flags & GRPC_BAD_CLIENT_LARGE_REQUEST)) {
     GPR_ASSERT(
         gpr_event_wait(&a.done_write, grpc_timeout_seconds_to_deadline(5)));
+  }
 
   if (flags & GRPC_BAD_CLIENT_DISCONNECT) {
     grpc_endpoint_shutdown(
@@ -186,6 +189,8 @@ void grpc_run_bad_client_test(
     grpc_exec_ctx_finish(&exec_ctx);
   }
 
+  GPR_ASSERT(
+      gpr_event_wait(&a.done_write, grpc_timeout_seconds_to_deadline(1)));
   shutdown_cq = grpc_completion_queue_create_for_pluck(NULL);
   grpc_server_shutdown_and_notify(a.server, shutdown_cq, NULL);
   GPR_ASSERT(grpc_completion_queue_pluck(

test/core/bad_client/bad_client.h

@@ -37,6 +37,7 @@ typedef bool (*grpc_bad_client_client_stream_validator)(
     grpc_slice_buffer *incoming);
 
 #define GRPC_BAD_CLIENT_DISCONNECT 1
+#define GRPC_BAD_CLIENT_LARGE_REQUEST 2
 
 /* Test runner.
 

test/core/bad_client/tests/window_overflow.c

@@ -90,7 +90,8 @@ int main(int argc, char **argv) {
       addbuf(message, sizeof(message));
     }
   }
-  grpc_run_bad_client_test(verifier, NULL, g_buffer, g_count, 0);
+  grpc_run_bad_client_test(verifier, NULL, g_buffer, g_count,
+                           GRPC_BAD_CLIENT_LARGE_REQUEST);
   gpr_free(g_buffer);
 
   return 0;