Adding a unit test to provide justification for prior changes

src/autowiring/test/AutoConstructTest.cpp

@@ -24,4 +24,31 @@ TEST_F(AutoConstructTest, AutoConstructNoArgs) {
 TEST_F(AutoConstructTest, AutoConstructWithArgs) {
   AutoConstruct<HasDefaultCtorAndOthers> hdcao(495);
   ASSERT_EQ(495, hdcao->v) << "Constructor call was not made as expected";
+}
+
+class CanOnlyAcceptMovedInput {
+public:
+  CanOnlyAcceptMovedInput(std::unique_ptr<std::shared_ptr<int>>&& ptr) :
+    m_ptr(std::move(ptr))
+  {}
+
+  std::unique_ptr<std::shared_ptr<int>> m_ptr;
+};
+
+TEST_F(AutoConstructTest, CanConstructRvalueCtor) {
+  auto originalPtr = std::make_shared<int>(555);
+
+  // Make a unique pointer to a shared pointer, and pass it in:
+  {
+    AutoCreateContext ctxt;
+    CurrentContextPusher pshr(ctxt);
+
+    std::unique_ptr<std::shared_ptr<int>> forwarded(new std::shared_ptr<int>(originalPtr));
+    AutoConstruct<CanOnlyAcceptMovedInput> coami(std::move(forwarded));
+
+    // Should have the correct number of references, no more and no less
+    ASSERT_EQ(2UL, originalPtr.use_count()) << "Forwarding unique pointer did not correctly";
+  }
+
+  ASSERT_TRUE(originalPtr.unique()) << "Memory leak detected due to incorrect forwarding of a unique pointer";
 }