1 files changed, 17 insertions, 0 deletions
diff --git a/tests/worker_api_2_worker.cpp b/tests/worker_api_2_worker.cpp
index 6db704a5..d7033bc4 100644
--- a/tests/worker_api_2_worker.cpp
+++ b/tests/worker_api_2_worker.cpp
@@ -8,13 +8,17 @@ struct Info {
   double d;
 };
 
+int calls = 0; // global state that is not in all workers
+
 extern "C" {
 
 void one(char *data, int size) {
+  calls++;
   emscripten_worker_respond(data, size);
 }
 
 void two(char *data, int size) {
+  calls++;
   Info *x = (Info*)data;
   x[0].i++;
   x[0].f--;
@@ -23,5 +27,18 @@ void two(char *data, int size) {
   emscripten_worker_respond(data, size);
 }
 
+void three(char *data, int size) {
+  assert(data == 0);
+  assert(size == 0);
+  calls++;
+  // no response
+}
+
+void four(char *data, int size) {
+  assert(data == 0);
+  assert(size == 0);
+  emscripten_worker_respond((char*)&calls, sizeof(calls));
+}
+
 }