1 files changed, 146 insertions, 0 deletions
diff --git a/base/threading/thread_checker_unittest.cc b/base/threading/thread_checker_unittest.cc
new file mode 100644
index 0000000..6ce5bf1
--- /dev/null
+++ b/base/threading/thread_checker_unittest.cc
@@ -0,0 +1,146 @@
+// 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/basictypes.h"
+#include "base/logging.h"
+#include "base/scoped_ptr.h"
+#include "base/threading/thread_checker.h"
+#include "base/threading/simple_thread.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+#ifndef NDEBUG
+
+namespace base {
+
+// Simple class to exersice the basics of ThreadChecker.
+// Both the destructor and DoStuff should verify that they were
+// called on the same thread as the constructor.
+class ThreadCheckerClass : public ThreadChecker {
+ public:
+  ThreadCheckerClass() {}
+
+  // Verifies that it was called on the same thread as the constructor.
+  void DoStuff() {
+    DCHECK(CalledOnValidThread());
+  }
+
+  void DetachFromThread() {
+    ThreadChecker::DetachFromThread();
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ThreadCheckerClass);
+};
+
+// Calls ThreadCheckerClass::DoStuff on another thread.
+class CallDoStuffOnThread : public base::SimpleThread {
+ public:
+  CallDoStuffOnThread(ThreadCheckerClass* thread_checker_class)
+      : SimpleThread("call_do_stuff_on_thread"),
+        thread_checker_class_(thread_checker_class) {
+  }
+
+  virtual void Run() {
+    thread_checker_class_->DoStuff();
+  }
+
+ private:
+  ThreadCheckerClass* thread_checker_class_;
+
+  DISALLOW_COPY_AND_ASSIGN(CallDoStuffOnThread);
+};
+
+// Deletes ThreadCheckerClass on a different thread.
+class DeleteThreadCheckerClassOnThread : public base::SimpleThread {
+ public:
+  DeleteThreadCheckerClassOnThread(ThreadCheckerClass* thread_checker_class)
+      : SimpleThread("delete_thread_checker_class_on_thread"),
+        thread_checker_class_(thread_checker_class) {
+  }
+
+  virtual void Run() {
+    thread_checker_class_.reset();
+  }
+
+ private:
+  scoped_ptr<ThreadCheckerClass> thread_checker_class_;
+
+  DISALLOW_COPY_AND_ASSIGN(DeleteThreadCheckerClassOnThread);
+};
+
+TEST(ThreadCheckerTest, CallsAllowedOnSameThread) {
+  scoped_ptr<ThreadCheckerClass> thread_checker_class(
+      new ThreadCheckerClass);
+
+  // Verify that DoStuff doesn't assert.
+  thread_checker_class->DoStuff();
+
+  // Verify that the destructor doesn't assert.
+  thread_checker_class.reset();
+}
+
+TEST(ThreadCheckerTest, DestructorAllowedOnDifferentThread) {
+  scoped_ptr<ThreadCheckerClass> thread_checker_class(
+      new ThreadCheckerClass);
+
+  // Verify that the destructor doesn't assert
+  // when called on a different thread.
+  DeleteThreadCheckerClassOnThread delete_on_thread(
+      thread_checker_class.release());
+
+  delete_on_thread.Start();
+  delete_on_thread.Join();
+}
+
+TEST(ThreadCheckerTest, DetachFromThread) {
+  scoped_ptr<ThreadCheckerClass> thread_checker_class(
+      new ThreadCheckerClass);
+
+  // Verify that DoStuff doesn't assert when called on a different thread after
+  // a call to DetachFromThread.
+  thread_checker_class->DetachFromThread();
+  CallDoStuffOnThread call_on_thread(thread_checker_class.get());
+
+  call_on_thread.Start();
+  call_on_thread.Join();
+}
+
+#if GTEST_HAS_DEATH_TEST
+
+TEST(ThreadCheckerDeathTest, MethodNotAllowedOnDifferentThread) {
+  ASSERT_DEBUG_DEATH({
+      scoped_ptr<ThreadCheckerClass> thread_checker_class(
+          new ThreadCheckerClass);
+
+      // Verify that DoStuff asserts when called on a different thread.
+      CallDoStuffOnThread call_on_thread(thread_checker_class.get());
+
+      call_on_thread.Start();
+      call_on_thread.Join();
+    }, "");
+}
+
+TEST(ThreadCheckerDeathTest, DetachFromThread) {
+  ASSERT_DEBUG_DEATH({
+      scoped_ptr<ThreadCheckerClass> thread_checker_class(
+          new ThreadCheckerClass);
+
+      // Verify that DoStuff doesn't assert when called on a different thread
+      // after a call to DetachFromThread.
+      thread_checker_class->DetachFromThread();
+      CallDoStuffOnThread call_on_thread(thread_checker_class.get());
+
+      call_on_thread.Start();
+      call_on_thread.Join();
+
+      // Verify that DoStuff asserts after moving to another thread.
+      thread_checker_class->DoStuff();
+    }, "");
+}
+
+#endif  // GTEST_HAS_DEATH_TEST
+
+}  // namespace base
+
+#endif  // NDEBUG