1 files changed, 117 insertions, 0 deletions
diff --git a/test/std/utilities/smartptr/unique.ptr/unique.ptr.class/unique.ptr.modifiers/reset.pass.cpp b/test/std/utilities/smartptr/unique.ptr/unique.ptr.class/unique.ptr.modifiers/reset.pass.cpp
new file mode 100644
index 000000000000..c95c55b4adf8
--- /dev/null
+++ b/test/std/utilities/smartptr/unique.ptr/unique.ptr.class/unique.ptr.modifiers/reset.pass.cpp
@@ -0,0 +1,117 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <memory>
+
+// unique_ptr
+
+// test reset
+
+#include <memory>
+#include <cassert>
+
+#include "test_macros.h"
+#include "unique_ptr_test_helper.h"
+
+template <bool IsArray>
+void test_reset_pointer() {
+  typedef typename std::conditional<IsArray, A[], A>::type VT;
+  const int expect_alive = IsArray ? 3 : 1;
+#if TEST_STD_VER >= 11
+  {
+    using U = std::unique_ptr<VT>;
+    U u; ((void)u);
+    ASSERT_NOEXCEPT(u.reset((A*)nullptr));
+  }
+#endif
+  {
+    std::unique_ptr<VT> p(newValue<VT>(expect_alive));
+    assert(A::count == expect_alive);
+    A* i = p.get();
+    assert(i != nullptr);
+    A* new_value = newValue<VT>(expect_alive);
+    assert(A::count == (expect_alive * 2));
+    p.reset(new_value);
+    assert(A::count == expect_alive);
+    assert(p.get() == new_value);
+  }
+  assert(A::count == 0);
+  {
+    std::unique_ptr<const VT> p(newValue<const VT>(expect_alive));
+    assert(A::count == expect_alive);
+    const A* i = p.get();
+    assert(i != nullptr);
+    A* new_value = newValue<VT>(expect_alive);
+    assert(A::count == (expect_alive * 2));
+    p.reset(new_value);
+    assert(A::count == expect_alive);
+    assert(p.get() == new_value);
+  }
+  assert(A::count == 0);
+}
+
+template <bool IsArray>
+void test_reset_nullptr() {
+  typedef typename std::conditional<IsArray, A[], A>::type VT;
+  const int expect_alive = IsArray ? 3 : 1;
+#if TEST_STD_VER >= 11
+  {
+    using U = std::unique_ptr<VT>;
+    U u; ((void)u);
+    ASSERT_NOEXCEPT(u.reset(nullptr));
+  }
+#endif
+  {
+    std::unique_ptr<VT> p(newValue<VT>(expect_alive));
+    assert(A::count == expect_alive);
+    A* i = p.get();
+    assert(i != nullptr);
+    p.reset(nullptr);
+    assert(A::count == 0);
+    assert(p.get() == nullptr);
+  }
+  assert(A::count == 0);
+}
+
+
+template <bool IsArray>
+void test_reset_no_arg() {
+  typedef typename std::conditional<IsArray, A[], A>::type VT;
+  const int expect_alive = IsArray ? 3 : 1;
+#if TEST_STD_VER >= 11
+  {
+    using U = std::unique_ptr<VT>;
+    U u; ((void)u);
+    ASSERT_NOEXCEPT(u.reset());
+  }
+#endif
+  {
+    std::unique_ptr<VT> p(newValue<VT>(expect_alive));
+    assert(A::count == expect_alive);
+    A* i = p.get();
+    assert(i != nullptr);
+    p.reset();
+    assert(A::count == 0);
+    assert(p.get() == nullptr);
+  }
+  assert(A::count == 0);
+}
+
+int main() {
+  {
+    test_reset_pointer</*IsArray*/ false>();
+    test_reset_nullptr<false>();
+    test_reset_no_arg<false>();
+  }
+  {
+    test_reset_pointer</*IsArray*/true>();
+    test_reset_nullptr<true>();
+    test_reset_no_arg<true>();
+  }
+}