chore: import upstream snapshot with attribution

test/unique_ptr_unittest.cpp

@@ -0,0 +1,66 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include <gtest/gtest.h>
+#include "butil/unique_ptr.h"
+
+namespace {
+
+class UniquePtrTest : public testing::Test {
+protected:
+    virtual void SetUp() {
+    };
+};
+
+struct Foo {
+    Foo() : destroyed(false), called_func(false) {}
+    void destroy() { destroyed = true; }
+    void func() { called_func = true; }
+    bool destroyed;
+    bool called_func;
+};
+
+struct FooDeleter {
+    void operator()(Foo* f) const {
+        f->destroy();
+    }
+};
+
+TEST_F(UniquePtrTest, basic) {
+    Foo foo;
+    ASSERT_FALSE(foo.destroyed);
+    ASSERT_FALSE(foo.called_func);
+    {
+        std::unique_ptr<Foo, FooDeleter> foo_ptr(&foo);
+        foo_ptr->func();
+        ASSERT_TRUE(foo.called_func);
+    }
+    ASSERT_TRUE(foo.destroyed);
+}
+
+static std::unique_ptr<Foo> generate_foo(Foo* foo) {
+    std::unique_ptr<Foo> foo_ptr(foo);
+    return foo_ptr;
+}
+
+TEST_F(UniquePtrTest, return_unique_ptr) {
+    Foo* foo = new Foo;
+    std::unique_ptr<Foo> foo_ptr = generate_foo(foo);
+    ASSERT_EQ(foo, foo_ptr.get());
+}
+
+}