test promise error handled

Author: hedwigz

test/core/test_main_thread_async_em_asm_promise_await_reject.cpp

@@ -0,0 +1,35 @@
+// Copyright 2017 The Emscripten Authors.  All rights reserved.
+// Emscripten is available under two separate licenses, the MIT license and the
+// University of Illinois/NCSA Open Source License.  Both these licenses can be
+// found in the LICENSE file.
+
+#include <emscripten.h>
+#include <stdio.h>
+// pthread
+#include <pthread.h>
+
+int main()
+{
+  // start new thread
+  pthread_t thread;
+  pthread_create(&thread, NULL, [](void*) -> void* {
+    printf("Before MAIN_THREAD_EM_ASM_PROMISE_AWAIT\n");
+    int res = MAIN_THREAD_EM_ASM_PROMISE_AWAIT({
+      out('Inside MAIN_THREAD_EM_ASM_PROMISE_AWAIT: ' + $0 + ' ' + $1);
+      const asyncOp = new Promise((resolve,reject) => {
+        setTimeout(() => {
+          out('Inside asyncOp');
+          reject(2);
+        }, 1000);
+      });
+      return asyncOp;
+    }, 42, 3.5);
+    printf("After MAIN_THREAD_EM_ASM_PROMISE_AWAIT rejected\n");
+    printf("result: %d\n", res);
+    return NULL;
+  }, NULL);
+
+  // wait for thread to finish
+  pthread_join(thread, NULL);
+  return 0;
+}

test/core/test_main_thread_async_em_asm_promise_await_reject.out

@@ -0,0 +1,5 @@
+Before MAIN_THREAD_EM_ASM_PROMISE_AWAIT
+Inside MAIN_THREAD_EM_ASM_PROMISE_AWAIT: 42 3.5
+Inside asyncOp
+After MAIN_THREAD_EM_ASM_PROMISE_AWAIT rejected
+result: 2

test/test_core.py

@@ -1908,6 +1908,13 @@ def test_main_thread_async_em_asm_promise_await(self, args, force_c=False):
       self.assertContained('call to emscripten_asm_const_int_await_promise_on_main_thread is only supported from pthread (but was called from main thread)', output)
     else:
       self.do_core_test('test_main_thread_async_em_asm_promise_await.cpp', emcc_args=args, force_c=force_c)
+  
+  @needs_dylink
+  @parameterized({
+    'pthreads': (['-pthread', '-sPROXY_TO_PTHREAD', '-sEXIT_RUNTIME'], False),
+  })
+  def test_main_thread_async_em_asm_promise_await_reject(self, args, force_c=False):
+    self.do_core_test('test_main_thread_async_em_asm_promise_await_reject.cpp', emcc_args=args, force_c=force_c)
 
   # Tests MAIN_THREAD_EM_ASM_INT() function call with different signatures.
   def test_main_thread_em_asm_signatures(self):