Add FakeVideoDecoder.

media/base/callback_holder_unittest.cc

Index: media/base/callback_holder_unittest.cc
diff --git a/media/base/callback_holder_unittest.cc b/media/base/callback_holder_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..16a119cdb7e02c09381f22a30e4ba33f9ee68623
--- /dev/null
+++ b/media/base/callback_holder_unittest.cc
@@ -0,0 +1,125 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[scherkus (not reviewing), 2013/05/28 15:56:57]

new file: 2013

[xhwang, 2013/05/28 19:34:10]

Done.

+// 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"

[scherkus (not reviewing), 2013/05/28 15:56:57]

being the unit test this doesn't have to be first (in other words, remove blank
line below)

[xhwang, 2013/05/28 19:34:10]

Done.

+
+#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::Closure> cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  cb.HoldCallback();
+
+  bool closure_called = false;
+  cb.SetCallback(base::Bind(&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::Closure> cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  bool closure_called = false;
+  cb.SetCallback(base::Bind(&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::Closure> cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  bool closure_called = false;
+  cb.SetCallback(base::Bind(&SetBool, &closure_called));
+  EXPECT_FALSE(cb.IsNull());
+
+  cb.RunOrHold();
+  EXPECT_TRUE(cb.IsNull());
+  EXPECT_TRUE(closure_called);
+}
+
+TEST(CallbackHolderTest, SetAfterHold_Callback) {
+  CallbackHolder<base::Callback<void(int, int*)> > cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  cb.HoldCallback();
+
+  cb.SetCallback(base::Bind(&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::Callback<void(int, int*)> > cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  cb.SetCallback(base::Bind(&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::Callback<void(int, int*)> > cb;
+  EXPECT_TRUE(cb.IsNull());
+
+  cb.SetCallback(base::Bind(&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