1 files changed, 58 insertions, 0 deletions
diff --git a/deps/v8/test/unittests/runtime/runtime-debug-unittest.cc b/deps/v8/test/unittests/runtime/runtime-debug-unittest.cc
new file mode 100644
index 0000000000..dbc4a76f88
--- /dev/null
+++ b/deps/v8/test/unittests/runtime/runtime-debug-unittest.cc
@@ -0,0 +1,58 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "include/v8.h"
+#include "src/api/api.h"
+#include "src/objects/objects-inl.h"
+#include "src/runtime/runtime.h"
+#include "test/unittests/test-utils.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace v8 {
+namespace internal {
+namespace {
+
+using RuntimeTest = TestWithContext;
+
+TEST_F(RuntimeTest, ReturnsPrototype) {
+  TryCatch try_catch(isolate());
+
+  Local<v8::Object> object = v8::Object::New(isolate());
+  Handle<JSArray> i_result =
+      Runtime::GetInternalProperties(i_isolate(), Utils::OpenHandle(*object))
+          .ToHandleChecked();
+  Local<Array> result = Utils::ToLocal(i_result);
+  EXPECT_GE(result->Length(), 1u);
+
+  char name_buffer[100];
+  result->Get(context(), 0)
+      .ToLocalChecked()
+      .As<v8::String>()
+      ->WriteUtf8(isolate(), name_buffer);
+  EXPECT_EQ("[[Prototype]]", std::string(name_buffer));
+}
+
+bool AccessCheck(Local<v8::Context> accessing_context,
+                 Local<v8::Object> accessed_object, Local<Value> data) {
+  return false;
+}
+
+TEST_F(RuntimeTest, DoesNotReturnPrototypeWhenInacessible) {
+  TryCatch try_catch(isolate());
+
+  Local<ObjectTemplate> object_template = ObjectTemplate::New(isolate());
+  object_template->SetAccessCheckCallback(AccessCheck);
+
+  Local<v8::Object> object =
+      object_template->NewInstance(context()).ToLocalChecked();
+  Handle<JSArray> i_result =
+      Runtime::GetInternalProperties(i_isolate(), Utils::OpenHandle(*object))
+          .ToHandleChecked();
+  Local<Array> result = Utils::ToLocal(i_result);
+  EXPECT_EQ(0u, result->Length());
+}
+
+}  // namespace
+}  // namespace internal
+}  // namespace v8