1 files changed, 78 insertions, 0 deletions
diff --git a/mfbt/tests/gtest/TestLinkedList.cpp b/mfbt/tests/gtest/TestLinkedList.cpp
new file mode 100644
index 0000000000..d53cba5920
--- /dev/null
+++ b/mfbt/tests/gtest/TestLinkedList.cpp
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "gtest/gtest.h"
+
+#include "mozilla/LinkedList.h"
+#include "mozilla/RefPtr.h"
+
+using mozilla::AutoCleanLinkedList;
+using mozilla::LinkedList;
+using mozilla::LinkedListElement;
+
+class PtrClass : public LinkedListElement<PtrClass> {
+ public:
+  bool* mResult;
+
+  explicit PtrClass(bool* result) : mResult(result) { EXPECT_TRUE(!*mResult); }
+
+  virtual ~PtrClass() { *mResult = true; }
+};
+
+class InheritedPtrClass : public PtrClass {
+ public:
+  bool* mInheritedResult;
+
+  InheritedPtrClass(bool* result, bool* inheritedResult)
+      : PtrClass(result), mInheritedResult(inheritedResult) {
+    EXPECT_TRUE(!*mInheritedResult);
+  }
+
+  virtual ~InheritedPtrClass() { *mInheritedResult = true; }
+};
+
+TEST(LinkedList, AutoCleanLinkedList)
+{
+  bool rv1 = false;
+  bool rv2 = false;
+  bool rv3 = false;
+  {
+    AutoCleanLinkedList<PtrClass> list;
+    list.insertBack(new PtrClass(&rv1));
+    list.insertBack(new InheritedPtrClass(&rv2, &rv3));
+  }
+
+  EXPECT_TRUE(rv1);
+  EXPECT_TRUE(rv2);
+  EXPECT_TRUE(rv3);
+}
+
+class CountedClass final : public LinkedListElement<RefPtr<CountedClass>> {
+ public:
+  int mCount;
+  void AddRef() { mCount++; }
+  void Release() { mCount--; }
+
+  CountedClass() : mCount(0) {}
+  ~CountedClass() { EXPECT_TRUE(mCount == 0); }
+};
+
+TEST(LinkedList, AutoCleanLinkedListRefPtr)
+{
+  RefPtr<CountedClass> elt1 = new CountedClass;
+  CountedClass* elt2 = new CountedClass;
+  {
+    AutoCleanLinkedList<RefPtr<CountedClass>> list;
+    list.insertBack(elt1);
+    list.insertBack(elt2);
+
+    EXPECT_TRUE(elt1->mCount == 2);
+    EXPECT_TRUE(elt2->mCount == 1);
+  }
+
+  EXPECT_TRUE(elt1->mCount == 1);
+  EXPECT_TRUE(elt2->mCount == 0);
+}