Move wtf_unittests to platform/wtf/.

third_party/WebKit/Source/wtf/OptionalTest.cpp

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "wtf/Optional.h"
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace WTF {
-namespace {
-
-struct IntBox {
-  IntBox(int n) : number(n) {}
-  int number;
-};
-
-class DestructionNotifier {
- public:
-  DestructionNotifier(bool& flag) : m_flag(flag) {}
-  ~DestructionNotifier() { m_flag = true; }
-
- private:
-  bool& m_flag;
-};
-
-TEST(OptionalTest, BooleanTest) {
-  Optional<int> optional;
-  EXPECT_FALSE(optional);
-  optional.emplace(0);
-  EXPECT_TRUE(optional);
-}
-
-TEST(OptionalTest, Dereference) {
-  Optional<int> optional;
-  optional.emplace(1);
-  EXPECT_EQ(1, *optional);
-
-  Optional<IntBox> optionalIntbox;
-  optionalIntbox.emplace(42);
-  EXPECT_EQ(42, optionalIntbox->number);
-}
-
-TEST(OptionalTest, DestructorCalled) {
-  // Destroying a disengaged optional shouldn't do anything.
-  { Optional<DestructionNotifier> optional; }
-
-  // Destroying an engaged optional should call the destructor.
-  bool isDestroyed = false;
-  {
-    Optional<DestructionNotifier> optional;
-    optional.emplace(isDestroyed);
-    EXPECT_FALSE(isDestroyed);
-  }
-  EXPECT_TRUE(isDestroyed);
-}
-
-}  // namespace
-}  // namespace WTF