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      1 // Copyright (c) 2012 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 "base/threading/thread_id_name_manager.h"
      6 
      7 #include "base/threading/platform_thread.h"
      8 #include "base/threading/thread.h"
      9 #include "testing/gtest/include/gtest/gtest.h"
     10 #include "testing/platform_test.h"
     11 
     12 typedef PlatformTest ThreadIdNameManagerTest;
     13 
     14 namespace {
     15 
     16 static const char* kAThread = "a thread";
     17 static const char* kBThread = "b thread";
     18 
     19 TEST_F(ThreadIdNameManagerTest, AddThreads) {
     20   base::ThreadIdNameManager* manager = base::ThreadIdNameManager::GetInstance();
     21   base::Thread thread_a(kAThread);
     22   base::Thread thread_b(kBThread);
     23 
     24   thread_a.Start();
     25   thread_b.Start();
     26 
     27   EXPECT_STREQ(kAThread, manager->GetName(thread_a.thread_id()));
     28   EXPECT_STREQ(kBThread, manager->GetName(thread_b.thread_id()));
     29 
     30   thread_b.Stop();
     31   thread_a.Stop();
     32 }
     33 
     34 TEST_F(ThreadIdNameManagerTest, RemoveThreads) {
     35   base::ThreadIdNameManager* manager = base::ThreadIdNameManager::GetInstance();
     36   base::Thread thread_a(kAThread);
     37 
     38   thread_a.Start();
     39   {
     40     base::Thread thread_b(kBThread);
     41     thread_b.Start();
     42     thread_b.Stop();
     43   }
     44   EXPECT_STREQ(kAThread, manager->GetName(thread_a.thread_id()));
     45 
     46   thread_a.Stop();
     47   EXPECT_STREQ("", manager->GetName(thread_a.thread_id()));
     48 }
     49 
     50 TEST_F(ThreadIdNameManagerTest, RestartThread) {
     51   base::ThreadIdNameManager* manager = base::ThreadIdNameManager::GetInstance();
     52   base::Thread thread_a(kAThread);
     53 
     54   thread_a.Start();
     55   base::PlatformThreadId a_id = thread_a.thread_id();
     56   EXPECT_STREQ(kAThread, manager->GetName(a_id));
     57   thread_a.Stop();
     58 
     59   thread_a.Start();
     60   EXPECT_STREQ("", manager->GetName(a_id));
     61   EXPECT_STREQ(kAThread, manager->GetName(thread_a.thread_id()));
     62   thread_a.Stop();
     63 }
     64 
     65 TEST_F(ThreadIdNameManagerTest, ThreadNameInterning) {
     66   base::ThreadIdNameManager* manager = base::ThreadIdNameManager::GetInstance();
     67 
     68   base::PlatformThreadId a_id = base::PlatformThread::CurrentId();
     69   base::PlatformThread::SetName("First Name");
     70   std::string version = manager->GetName(a_id);
     71 
     72   base::PlatformThread::SetName("New name");
     73   EXPECT_NE(version, manager->GetName(a_id));
     74   base::PlatformThread::SetName("");
     75 }
     76 
     77 TEST_F(ThreadIdNameManagerTest, ResettingNameKeepsCorrectInternedValue) {
     78   base::ThreadIdNameManager* manager = base::ThreadIdNameManager::GetInstance();
     79 
     80   base::PlatformThreadId a_id = base::PlatformThread::CurrentId();
     81   base::PlatformThread::SetName("Test Name");
     82   std::string version = manager->GetName(a_id);
     83 
     84   base::PlatformThread::SetName("New name");
     85   EXPECT_NE(version, manager->GetName(a_id));
     86 
     87   base::PlatformThread::SetName("Test Name");
     88   EXPECT_EQ(version, manager->GetName(a_id));
     89 
     90   base::PlatformThread::SetName("");
     91 }
     92 
     93 }  // namespace
     94