Adds a special case for sending an int over a port with the native API.

runtime/vm/dart_api_impl_test.cc

Index: runtime/vm/dart_api_impl_test.cc
diff --git a/runtime/vm/dart_api_impl_test.cc b/runtime/vm/dart_api_impl_test.cc
index 1499f37fc348dddb403295350128816bc2e1d913..7c5051e303151c0d3d43ce3c7a195d59bea26449 100644
--- a/runtime/vm/dart_api_impl_test.cc
+++ b/runtime/vm/dart_api_impl_test.cc
@@ -6992,6 +6992,31 @@ void NewNativePort_send321(Dart_Port dest_port_id,
 }
 
 
+void NewNativePort_sendInteger123(Dart_Port dest_port_id,
+                                  Dart_CObject *message) {
+  // Gets a send port message.
+  EXPECT_NOTNULL(message);
+  EXPECT_EQ(Dart_CObject_kArray, message->type);
+  EXPECT_EQ(Dart_CObject_kSendPort, message->value.as_array.values[0]->type);
+
+  // Post integer value.
+  Dart_PostInteger(
+      message->value.as_array.values[0]->value.as_send_port.id, 123);
+}
+
+
+void NewNativePort_sendInteger321(Dart_Port dest_port_id,
+                                  Dart_CObject* message) {
+  // Gets a null message.
+  EXPECT_NOTNULL(message);
+  EXPECT_EQ(Dart_CObject_kSendPort, message->value.as_array.values[0]->type);
+
+  // Post integer value.
+  Dart_PostInteger(
+      message->value.as_array.values[0]->value.as_send_port.id, 321);
+}
+
+
 TEST_CASE(IllegalNewSendPort) {
   Dart_Handle error = Dart_NewSendPort(ILLEGAL_PORT);
   EXPECT(Dart_IsError(error));
@@ -7067,6 +7092,59 @@ UNIT_TEST_CASE(NewNativePort) {
 }
 
 
+TEST_CASE(NewNativePortPostInteger) {
+  const char* kScriptChars =
+      "import 'dart:isolate';\n"
+      "void callPort(SendPort port) {\n"
+      "  var receivePort = new RawReceivePort();\n"
+      "  var replyPort = receivePort.sendPort;\n"
+      "  port.send([replyPort]);\n"
+      "  receivePort.handler = (message) {\n"
+      "    receivePort.close();\n"
+      "    throw new Exception(message);\n"
+      "  };\n"
+      "}\n";
+  Dart_Handle lib = TestCase::LoadTestScript(kScriptChars, NULL);
+  Dart_EnterScope();
+
+  Dart_Port port_id1 =
+      Dart_NewNativePort("Port123", NewNativePort_sendInteger123, true);
+  Dart_Port port_id2 =
+      Dart_NewNativePort("Port321", NewNativePort_sendInteger321, true);
+
+  Dart_Handle send_port1 = Dart_NewSendPort(port_id1);
+  EXPECT_VALID(send_port1);
+  Dart_Handle send_port2 = Dart_NewSendPort(port_id2);
+  EXPECT_VALID(send_port2);
+
+  // Test first port.
+  Dart_Handle dart_args[1];
+  dart_args[0] = send_port1;
+  Dart_Handle result =
+      Dart_Invoke(lib, NewString("callPort"), 1, dart_args);
+  EXPECT_VALID(result);
+  result = Dart_RunLoop();
+  EXPECT(Dart_IsError(result));
+  EXPECT(Dart_ErrorHasException(result));
+  EXPECT_SUBSTRING("Exception: 123\n", Dart_GetError(result));
+
+  // result second port.
+  dart_args[0] = send_port2;
+  result = Dart_Invoke(lib, NewString("callPort"), 1, dart_args);
+  EXPECT_VALID(result);
+  result = Dart_RunLoop();
+  EXPECT(Dart_IsError(result));
+  EXPECT(Dart_ErrorHasException(result));
+  EXPECT_SUBSTRING("Exception: 321\n", Dart_GetError(result));
+
+  Dart_ExitScope();
+
+  // Delete the native ports.
+  EXPECT(Dart_CloseNativePort(port_id1));
+  EXPECT(Dart_CloseNativePort(port_id2));
+}
+
+
 static Dart_Isolate RunLoopTestCallback(const char* script_name,
                                         const char* main,
                                         const char* package_root,