1 files changed, 51 insertions, 1 deletions

diff --git a/test/addons-napi/test_dataview/test_dataview.c b/test/addons-napi/test_dataview/test_dataview.c
index 5f95eef0f3..4d29ed07e9 100644
--- a/test/addons-napi/test_dataview/test_dataview.c
+++ b/test/addons-napi/test_dataview/test_dataview.c
@@ -3,6 +3,53 @@
 #include "../common.h"
 
 napi_value CreateDataView(napi_env env, napi_callback_info info) {
+  size_t argc = 3;
+  napi_value args [3];
+  NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
+
+  NAPI_ASSERT(env, argc == 3, "Wrong number of arguments");
+
+  napi_valuetype valuetype0;
+  napi_value arraybuffer = args[0];
+
+  NAPI_CALL(env, napi_typeof(env, arraybuffer, &valuetype0));
+  NAPI_ASSERT(env, valuetype0 == napi_object,
+              "Wrong type of arguments. Expects a ArrayBuffer as the first "
+              "argument.");
+
+  bool is_arraybuffer;
+  NAPI_CALL(env, napi_is_arraybuffer(env, arraybuffer, &is_arraybuffer));
+  NAPI_ASSERT(env, is_arraybuffer,
+              "Wrong type of arguments. Expects a ArrayBuffer as the first "
+              "argument.");
+
+  napi_valuetype valuetype1;
+  NAPI_CALL(env, napi_typeof(env, args[1], &valuetype1));
+
+  NAPI_ASSERT(env, valuetype1 == napi_number,
+      "Wrong type of arguments. Expects a number as second argument.");
+
+  size_t byte_offset = 0;
+  NAPI_CALL(env, napi_get_value_uint32(env, args[1], (uint32_t*)(&byte_offset)));
+
+  napi_valuetype valuetype2;
+  NAPI_CALL(env, napi_typeof(env, args[2], &valuetype2));
+
+  NAPI_ASSERT(env, valuetype2 == napi_number,
+      "Wrong type of arguments. Expects a number as third argument.");
+
+  size_t length = 0;
+  NAPI_CALL(env, napi_get_value_uint32(env, args[2], (uint32_t*)(&length)));
+
+  napi_value output_dataview;
+  NAPI_CALL(env,
+            napi_create_dataview(env, length, arraybuffer,
+                                 byte_offset, &output_dataview));
+
+  return output_dataview;
+}
+
+napi_value CreateDataViewFromJSDataView(napi_env env, napi_callback_info info) {
   size_t argc = 1;
   napi_value args [1];
   NAPI_CALL(env, napi_get_cb_info(env, info, &argc, args, NULL, NULL));
@@ -34,12 +81,15 @@ napi_value CreateDataView(napi_env env, napi_callback_info info) {
             napi_create_dataview(env, length, buffer,
                                  byte_offset, &output_dataview));
 
+
   return output_dataview;
 }
 
 napi_value Init(napi_env env, napi_value exports) {
   napi_property_descriptor descriptors[] = {
-    DECLARE_NAPI_PROPERTY("CreateDataView", CreateDataView)
+    DECLARE_NAPI_PROPERTY("CreateDataView", CreateDataView),
+    DECLARE_NAPI_PROPERTY("CreateDataViewFromJSDataView",
+        CreateDataViewFromJSDataView)
   };
 
   NAPI_CALL(env, napi_define_properties(