1 files changed, 98 insertions, 0 deletions
diff --git a/ipc/ipdl/test/gtest/TestDescendant.cpp b/ipc/ipdl/test/gtest/TestDescendant.cpp
new file mode 100644
index 0000000000..47f619d32a
--- /dev/null
+++ b/ipc/ipdl/test/gtest/TestDescendant.cpp
@@ -0,0 +1,98 @@
+/* -*- 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/. */
+
+/*
+ * Test multiple levels of descendant managed protocols.
+ */
+
+#include "gtest/gtest.h"
+
+#include "mozilla/_ipdltest/IPDLUnitTest.h"
+#include "mozilla/_ipdltest/PTestDescendantChild.h"
+#include "mozilla/_ipdltest/PTestDescendantParent.h"
+#include "mozilla/_ipdltest/PTestDescendantSubChild.h"
+#include "mozilla/_ipdltest/PTestDescendantSubParent.h"
+#include "mozilla/_ipdltest/PTestDescendantSubsubChild.h"
+#include "mozilla/_ipdltest/PTestDescendantSubsubParent.h"
+
+using namespace mozilla::ipc;
+
+namespace mozilla::_ipdltest {
+
+class TestDescendantSubsubParent : public PTestDescendantSubsubParent {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantSubsubParent, override)
+ private:
+  ~TestDescendantSubsubParent() = default;
+};
+
+class TestDescendantSubsubChild : public PTestDescendantSubsubChild {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantSubsubChild, override)
+ private:
+  ~TestDescendantSubsubChild() = default;
+};
+
+class TestDescendantSubParent : public PTestDescendantSubParent {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantSubParent, override)
+ private:
+  ~TestDescendantSubParent() = default;
+};
+
+class TestDescendantSubChild : public PTestDescendantSubChild {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantSubChild, override)
+ private:
+  already_AddRefed<PTestDescendantSubsubChild> AllocPTestDescendantSubsubChild()
+      final override {
+    return MakeAndAddRef<TestDescendantSubsubChild>();
+  }
+
+  ~TestDescendantSubChild() = default;
+};
+
+class TestDescendantParent : public PTestDescendantParent {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantParent, override)
+ private:
+  IPCResult RecvOk(NotNull<PTestDescendantSubsubParent*> a) final override {
+    EXPECT_TRUE(PTestDescendantSubsubParent::Send__delete__(a))
+        << "deleting Subsub";
+
+    Close();
+
+    return IPC_OK();
+  }
+
+  ~TestDescendantParent() = default;
+};
+
+class TestDescendantChild : public PTestDescendantChild {
+  NS_INLINE_DECL_REFCOUNTING(TestDescendantChild, override)
+ private:
+  already_AddRefed<PTestDescendantSubChild> AllocPTestDescendantSubChild(
+      PTestDescendantSubsubChild* dummy) final override {
+    EXPECT_FALSE(dummy) << "actor supposed to be null";
+    return MakeAndAddRef<TestDescendantSubChild>();
+  }
+
+  IPCResult RecvTest(NotNull<PTestDescendantSubsubChild*> a) final override {
+    EXPECT_TRUE(SendOk(a)) << "couldn't send Ok()";
+    return IPC_OK();
+  }
+
+  ~TestDescendantChild() = default;
+};
+
+IPDL_TEST(TestDescendant) {
+  auto p = MakeRefPtr<TestDescendantSubParent>();
+  auto* rv1 = mActor->SendPTestDescendantSubConstructor(p, nullptr);
+  EXPECT_EQ(p, rv1) << "can't allocate Sub";
+
+  auto pp = MakeRefPtr<TestDescendantSubsubParent>();
+  auto* rv2 = p->SendPTestDescendantSubsubConstructor(pp);
+  EXPECT_EQ(pp, rv2) << "can't allocate Subsub";
+
+  EXPECT_TRUE(mActor->SendTest(WrapNotNull(pp))) << "can't send Subsub";
+}
+
+}  // namespace mozilla::_ipdltest