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- // Copyright 2013 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 "media/base/callback_holder.h"
- #include "base/bind.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace media {
- static void SetBool(bool* var) {
- DCHECK(!*var);
- *var = true;
- }
- static void CopyVar(int var1, int* var2) {
- DCHECK_NE(var1, *var2);
- *var2 = var1;
- }
- TEST(CallbackHolderTest, SetAfterHold_Closure) {
- CallbackHolder<base::OnceClosure> cb;
- EXPECT_TRUE(cb.IsNull());
- cb.HoldCallback();
- bool closure_called = false;
- cb.SetCallback(base::BindOnce(&SetBool, &closure_called));
- EXPECT_FALSE(cb.IsNull());
- cb.RunOrHold();
- EXPECT_FALSE(closure_called);
- EXPECT_FALSE(cb.IsNull());
- cb.RunHeldCallback();
- EXPECT_TRUE(cb.IsNull());
- EXPECT_TRUE(closure_called);
- }
- TEST(CallbackHolderTest, HoldAfterSet_Closure) {
- CallbackHolder<base::OnceClosure> cb;
- EXPECT_TRUE(cb.IsNull());
- bool closure_called = false;
- cb.SetCallback(base::BindOnce(&SetBool, &closure_called));
- EXPECT_FALSE(cb.IsNull());
- cb.HoldCallback();
- cb.RunOrHold();
- EXPECT_FALSE(closure_called);
- EXPECT_FALSE(cb.IsNull());
- cb.RunHeldCallback();
- EXPECT_TRUE(cb.IsNull());
- EXPECT_TRUE(closure_called);
- }
- TEST(CallbackHolderTest, NotHold_Closure) {
- CallbackHolder<base::OnceClosure> cb;
- EXPECT_TRUE(cb.IsNull());
- bool closure_called = false;
- cb.SetCallback(base::BindOnce(&SetBool, &closure_called));
- EXPECT_FALSE(cb.IsNull());
- cb.RunOrHold();
- EXPECT_TRUE(cb.IsNull());
- EXPECT_TRUE(closure_called);
- }
- TEST(CallbackHolderTest, SetAfterHold_Callback) {
- CallbackHolder<base::OnceCallback<void(int, int*)>> cb;
- EXPECT_TRUE(cb.IsNull());
- cb.HoldCallback();
- cb.SetCallback(base::BindOnce(&CopyVar));
- EXPECT_FALSE(cb.IsNull());
- int var1 = 100;
- int var2 = 0;
- cb.RunOrHold(var1, &var2);
- EXPECT_FALSE(cb.IsNull());
- EXPECT_NE(var1, var2);
- cb.RunHeldCallback();
- EXPECT_TRUE(cb.IsNull());
- EXPECT_EQ(var1, var2);
- }
- TEST(CallbackHolderTest, HoldAfterSet_Callback) {
- CallbackHolder<base::OnceCallback<void(int, int*)>> cb;
- EXPECT_TRUE(cb.IsNull());
- cb.SetCallback(base::BindOnce(&CopyVar));
- EXPECT_FALSE(cb.IsNull());
- cb.HoldCallback();
- int var1 = 100;
- int var2 = 0;
- cb.RunOrHold(var1, &var2);
- EXPECT_FALSE(cb.IsNull());
- EXPECT_NE(var1, var2);
- cb.RunHeldCallback();
- EXPECT_TRUE(cb.IsNull());
- EXPECT_EQ(var1, var2);
- }
- TEST(CallbackHolderTest, NotHold_Callback) {
- CallbackHolder<base::OnceCallback<void(int, int*)>> cb;
- EXPECT_TRUE(cb.IsNull());
- cb.SetCallback(base::BindOnce(&CopyVar));
- EXPECT_FALSE(cb.IsNull());
- int var1 = 100;
- int var2 = 0;
- cb.RunOrHold(var1, &var2);
- EXPECT_TRUE(cb.IsNull());
- EXPECT_EQ(var1, var2);
- }
- } // namespace media
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