cc/resources/texture_mailbox_deleter_unittest.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/resources/texture_mailbox_deleter.h"
   6
   7 #include "base/single_thread_task_runner.h"
   8 #include "base/thread_task_runner_handle.h"
   9 #include "cc/resources/single_release_callback.h"
  10 #include "cc/test/test_context_provider.h"
  11 #include "cc/test/test_web_graphics_context_3d.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace cc {
  15 namespace {
  16
  17 TEST(TextureMailboxDeleterTest, Destroy) {
  18   scoped_ptr<TextureMailboxDeleter> deleter(
  19       new TextureMailboxDeleter(base::ThreadTaskRunnerHandle::Get()));
  20
  21   scoped_refptr<TestContextProvider> context_provider =
  22       TestContextProvider::Create();
  23   context_provider->BindToCurrentThread();
  24
  25   GLuint texture_id = 0u;
  26   context_provider->ContextGL()->GenTextures(1, &texture_id);
  27
  28   EXPECT_TRUE(context_provider->HasOneRef());
  29   EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
  30
  31   scoped_ptr<SingleReleaseCallback> cb =
  32       deleter->GetReleaseCallback(context_provider, texture_id).Pass();
  33   EXPECT_FALSE(context_provider->HasOneRef());
  34   EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
  35
  36   // When the deleter is destroyed, it immediately drops its ref on the
  37   // ContextProvider, and deletes the texture.
  38   deleter = nullptr;
  39   EXPECT_TRUE(context_provider->HasOneRef());
  40   EXPECT_EQ(0u, context_provider->TestContext3d()->NumTextures());
  41
  42   // Run the scoped release callback before destroying it, but it won't do
  43   // anything.
  44   cb->Run(0, false);
  45 }
  46
  47 }  // namespace
  48 }  // namespace cc