Move base to DEPS

base/callback_unittest.cc

-// Copyright (c) 2012 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 "base/bind.h"
-#include "base/callback.h"
-#include "base/callback_helpers.h"
-#include "base/callback_internal.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-namespace {
-
-struct FakeInvoker {
-  typedef void(RunType)(internal::BindStateBase*);
-  static void Run(internal::BindStateBase*) {
-  }
-};
-
-}  // namespace
-
-namespace internal {
-template <typename Runnable, typename RunType, typename BoundArgsType>
-struct BindState;
-
-// White-box testpoints to inject into a Callback<> object for checking
-// comparators and emptiness APIs.  Use a BindState that is specialized
-// based on a type we declared in the anonymous namespace above to remove any
-// chance of colliding with another instantiation and breaking the
-// one-definition-rule.
-template <>
-struct BindState<void(void), void(void), void(FakeInvoker)>
-    : public BindStateBase {
- public:
-  BindState() : BindStateBase(&Destroy) {}
-  typedef FakeInvoker InvokerType;
- private:
-  ~BindState() {}
-  static void Destroy(BindStateBase* self) {
-    delete static_cast<BindState*>(self);
-  }
-};
-
-template <>
-struct BindState<void(void), void(void),
-                           void(FakeInvoker, FakeInvoker)>
-    : public BindStateBase {
- public:
-  BindState() : BindStateBase(&Destroy) {}
-  typedef FakeInvoker InvokerType;
- private:
-  ~BindState() {}
-  static void Destroy(BindStateBase* self) {
-    delete static_cast<BindState*>(self);
-  }
-};
-}  // namespace internal
-
-namespace {
-
-typedef internal::BindState<void(void), void(void), void(FakeInvoker)>
-    FakeBindState1;
-typedef internal::BindState<void(void), void(void),
-                            void(FakeInvoker, FakeInvoker)>
-   FakeBindState2;
-
-class CallbackTest : public ::testing::Test {
- public:
-  CallbackTest()
-      : callback_a_(new FakeBindState1()),
-        callback_b_(new FakeBindState2()) {
-  }
-
-  ~CallbackTest() override {}
-
- protected:
-  Callback<void(void)> callback_a_;
-  const Callback<void(void)> callback_b_;  // Ensure APIs work with const.
-  Callback<void(void)> null_callback_;
-};
-
-// Ensure we can create unbound callbacks. We need this to be able to store
-// them in class members that can be initialized later.
-TEST_F(CallbackTest, DefaultConstruction) {
-  Callback<void(void)> c0;
-  Callback<void(int)> c1;
-  Callback<void(int,int)> c2;
-  Callback<void(int,int,int)> c3;
-  Callback<void(int,int,int,int)> c4;
-  Callback<void(int,int,int,int,int)> c5;
-  Callback<void(int,int,int,int,int,int)> c6;
-
-  EXPECT_TRUE(c0.is_null());
-  EXPECT_TRUE(c1.is_null());
-  EXPECT_TRUE(c2.is_null());
-  EXPECT_TRUE(c3.is_null());
-  EXPECT_TRUE(c4.is_null());
-  EXPECT_TRUE(c5.is_null());
-  EXPECT_TRUE(c6.is_null());
-}
-
-TEST_F(CallbackTest, IsNull) {
-  EXPECT_TRUE(null_callback_.is_null());
-  EXPECT_FALSE(callback_a_.is_null());
-  EXPECT_FALSE(callback_b_.is_null());
-}
-
-TEST_F(CallbackTest, Equals) {
-  EXPECT_TRUE(callback_a_.Equals(callback_a_));
-  EXPECT_FALSE(callback_a_.Equals(callback_b_));
-  EXPECT_FALSE(callback_b_.Equals(callback_a_));
-
-  // We should compare based on instance, not type.
-  Callback<void(void)> callback_c(new FakeBindState1());
-  Callback<void(void)> callback_a2 = callback_a_;
-  EXPECT_TRUE(callback_a_.Equals(callback_a2));
-  EXPECT_FALSE(callback_a_.Equals(callback_c));
-
-  // Empty, however, is always equal to empty.
-  Callback<void(void)> empty2;
-  EXPECT_TRUE(null_callback_.Equals(empty2));
-}
-
-TEST_F(CallbackTest, Reset) {
-  // Resetting should bring us back to empty.
-  ASSERT_FALSE(callback_a_.is_null());
-  ASSERT_FALSE(callback_a_.Equals(null_callback_));
-
-  callback_a_.Reset();
-
-  EXPECT_TRUE(callback_a_.is_null());
-  EXPECT_TRUE(callback_a_.Equals(null_callback_));
-}
-
-struct TestForReentrancy {
-  TestForReentrancy()
-      : cb_already_run(false),
-        cb(Bind(&TestForReentrancy::AssertCBIsNull, Unretained(this))) {
-  }
-  void AssertCBIsNull() {
-    ASSERT_TRUE(cb.is_null());
-    cb_already_run = true;
-  }
-  bool cb_already_run;
-  Closure cb;
-};
-
-TEST_F(CallbackTest, ResetAndReturn) {
-  TestForReentrancy tfr;
-  ASSERT_FALSE(tfr.cb.is_null());
-  ASSERT_FALSE(tfr.cb_already_run);
-  ResetAndReturn(&tfr.cb).Run();
-  ASSERT_TRUE(tfr.cb.is_null());
-  ASSERT_TRUE(tfr.cb_already_run);
-}
-
-class CallbackOwner : public base::RefCounted<CallbackOwner> {
- public:
-  explicit CallbackOwner(bool* deleted) {
-    callback_ = Bind(&CallbackOwner::Unused, this);
-    deleted_ = deleted;
-  }
-  void Reset() {
-    callback_.Reset();
-    // We are deleted here if no-one else had a ref to us.
-  }
-
- private:
-  friend class base::RefCounted<CallbackOwner>;
-  virtual ~CallbackOwner() {
-    *deleted_ = true;
-  }
-  void Unused() {
-    FAIL() << "Should never be called";
-  }
-
-  Closure callback_;
-  bool* deleted_;
-};
-
-TEST_F(CallbackTest, CallbackHasLastRefOnContainingObject) {
-  bool deleted = false;
-  CallbackOwner* owner = new CallbackOwner(&deleted);
-  owner->Reset();
-  ASSERT_TRUE(deleted);
-}
-
-}  // namespace
-}  // namespace base