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/message_loop/message_loop_proxy.h"
   8 #include "cc/resources/single_release_callback.h"
   9 #include "cc/test/test_context_provider.h"
  10 #include "cc/test/test_web_graphics_context_3d.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace cc {
  14 namespace {
  15
  16 TEST(TextureMailboxDeleterTest, Destroy) {
  17   scoped_ptr<TextureMailboxDeleter> deleter(
  18       new TextureMailboxDeleter(base::MessageLoopProxy::current()));
  19
  20   scoped_refptr<TestContextProvider> context_provider =
  21       TestContextProvider::Create();
  22   context_provider->BindToCurrentThread();
  23
  24   GLuint texture_id = 0u;
  25   context_provider->ContextGL()->GenTextures(1, &texture_id);
  26
  27   EXPECT_TRUE(context_provider->HasOneRef());
  28   EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
  29
  30   scoped_ptr<SingleReleaseCallback> cb =
  31       deleter->GetReleaseCallback(context_provider, texture_id).Pass();
  32   EXPECT_FALSE(context_provider->HasOneRef());
  33   EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
  34
  35   // When the deleter is destroyed, it immediately drops its ref on the
  36   // ContextProvider, and deletes the texture.
  37   deleter = nullptr;
  38   EXPECT_TRUE(context_provider->HasOneRef());
  39   EXPECT_EQ(0u, context_provider->TestContext3d()->NumTextures());
  40
  41   // Run the scoped release callback before destroying it, but it won't do
  42   // anything.
  43   cb->Run(0, false);
  44 }
  45
  46 }  // namespace
  47 }  // namespace cc