Move core pieces of chrome\browser. I've only gone up to "g", will do the rest in another cl.

TBR=avi
Review URL: http://codereview.chromium.org/6538100

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75652 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 166 insertions, 0 deletions

diff --git a/content/browser/browser_thread_unittest.cc b/content/browser/browser_thread_unittest.cc
new file mode 100644
index 0000000..af2a869
--- /dev/null
+++ b/content/browser/browser_thread_unittest.cc
@@ -0,0 +1,166 @@
+// Copyright (c) 2010 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/message_loop.h"
+#include "base/message_loop_proxy.h"
+#include "base/scoped_ptr.h"
+#include "content/browser/browser_thread.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
+
+class BrowserThreadTest : public testing::Test {
+ public:
+  void Release() const {
+    CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+    loop_.PostTask(FROM_HERE, new MessageLoop::QuitTask);
+  }
+
+ protected:
+  virtual void SetUp() {
+    ui_thread_.reset(new BrowserThread(BrowserThread::UI));
+    file_thread_.reset(new BrowserThread(BrowserThread::FILE));
+    ui_thread_->Start();
+    file_thread_->Start();
+  }
+
+  virtual void TearDown() {
+    ui_thread_->Stop();
+    file_thread_->Stop();
+  }
+
+  static void BasicFunction(MessageLoop* message_loop) {
+    CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+    message_loop->PostTask(FROM_HERE, new MessageLoop::QuitTask);
+  }
+
+  class DummyTask : public Task {
+   public:
+    explicit DummyTask(bool* deleted) : deleted_(deleted) { }
+    ~DummyTask() {
+      *deleted_ = true;
+    }
+
+    void Run() {
+      CHECK(false);
+    }
+
+   private:
+    bool* deleted_;
+  };
+
+  class DeletedOnFile
+      : public base::RefCountedThreadSafe<
+            DeletedOnFile, BrowserThread::DeleteOnFileThread> {
+   public:
+    explicit DeletedOnFile(MessageLoop* message_loop)
+        : message_loop_(message_loop) { }
+
+    ~DeletedOnFile() {
+      CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+      message_loop_->PostTask(FROM_HERE, new MessageLoop::QuitTask());
+    }
+
+   private:
+    MessageLoop* message_loop_;
+  };
+
+  class NeverDeleted
+      : public base::RefCountedThreadSafe<
+            NeverDeleted, BrowserThread::DeleteOnWebKitThread> {
+   public:
+    ~NeverDeleted() {
+      CHECK(false);
+    }
+  };
+
+ private:
+  scoped_ptr<BrowserThread> ui_thread_;
+  scoped_ptr<BrowserThread> file_thread_;
+  // It's kind of ugly to make this mutable - solely so we can post the Quit
+  // Task from Release(). This should be fixed.
+  mutable MessageLoop loop_;
+};
+
+TEST_F(BrowserThreadTest, PostTask) {
+  BrowserThread::PostTask(
+      BrowserThread::FILE, FROM_HERE,
+      NewRunnableFunction(&BasicFunction, MessageLoop::current()));
+  MessageLoop::current()->Run();
+}
+
+TEST_F(BrowserThreadTest, Release) {
+  BrowserThread::ReleaseSoon(BrowserThread::UI, FROM_HERE, this);
+  MessageLoop::current()->Run();
+}
+
+TEST_F(BrowserThreadTest, TaskToNonExistentThreadIsDeleted) {
+  bool deleted = false;
+  BrowserThread::PostTask(
+      BrowserThread::WEBKIT, FROM_HERE,
+      new DummyTask(&deleted));
+  EXPECT_TRUE(deleted);
+}
+
+TEST_F(BrowserThreadTest, ReleasedOnCorrectThread) {
+  {
+    scoped_refptr<DeletedOnFile> test(
+        new DeletedOnFile(MessageLoop::current()));
+  }
+  MessageLoop::current()->Run();
+}
+
+TEST_F(BrowserThreadTest, NotReleasedIfTargetThreadNonExistent) {
+  scoped_refptr<NeverDeleted> test(new NeverDeleted());
+}
+
+TEST_F(BrowserThreadTest, PostTaskViaMessageLoopProxy) {
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
+  message_loop_proxy->PostTask(FROM_HERE,
+                               NewRunnableFunction(&BasicFunction,
+                                                   MessageLoop::current()));
+  MessageLoop::current()->Run();
+}
+
+TEST_F(BrowserThreadTest, ReleaseViaMessageLoopProxy) {
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
+  message_loop_proxy->ReleaseSoon(FROM_HERE, this);
+  MessageLoop::current()->Run();
+}
+
+TEST_F(BrowserThreadTest, TaskToNonExistentThreadIsDeletedViaMessageLoopProxy) {
+  bool deleted = false;
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::WEBKIT);
+  message_loop_proxy->PostTask(FROM_HERE, new DummyTask(&deleted));
+  EXPECT_TRUE(deleted);
+}
+
+TEST_F(BrowserThreadTest, PostTaskViaMessageLoopProxyAfterThreadExits) {
+  scoped_ptr<BrowserThread> io_thread(new BrowserThread(BrowserThread::IO));
+  io_thread->Start();
+  io_thread->Stop();
+
+  bool deleted = false;
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
+  bool ret = message_loop_proxy->PostTask(FROM_HERE, new DummyTask(&deleted));
+  EXPECT_FALSE(ret);
+  EXPECT_TRUE(deleted);
+}
+
+TEST_F(BrowserThreadTest, PostTaskViaMessageLoopProxyAfterThreadIsDeleted) {
+  {
+    scoped_ptr<BrowserThread> io_thread(new BrowserThread(BrowserThread::IO));
+    io_thread->Start();
+  }
+  bool deleted = false;
+  scoped_refptr<base::MessageLoopProxy> message_loop_proxy =
+      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
+  bool ret = message_loop_proxy->PostTask(FROM_HERE, new DummyTask(&deleted));
+  EXPECT_FALSE(ret);
+  EXPECT_TRUE(deleted);
+}
+