src/chrome/browser/task_manager/task_manager_unittest.cc

   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 "chrome/browser/task_manager/task_manager.h"
   6
   7 #include <string>
   8
   9 #include "base/message_loop/message_loop.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/browser/task_manager/resource_provider.h"
  12 #include "chrome/grit/generated_resources.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "ui/base/l10n/l10n_util.h"
  15 #include "ui/gfx/image/image_skia.h"
  16
  17 using base::ASCIIToUTF16;
  18
  19 namespace {
  20
  21 #if defined(OS_MACOSX)
  22 // From task_manager.cc:
  23 // Activity Monitor shows %cpu with one decimal digit -- be
  24 // consistent with that.
  25 const char* kZeroCPUUsage = "0.0";
  26 #else
  27 const char* kZeroCPUUsage = "0";
  28 #endif
  29
  30 class TestResource : public task_manager::Resource {
  31  public:
  32   TestResource() : refresh_called_(false) {}
  33
  34   base::string16 GetTitle() const override {
  35     return ASCIIToUTF16("test title");
  36   }
  37   base::string16 GetProfileName() const override {
  38     return ASCIIToUTF16("test profile");
  39   }
  40   gfx::ImageSkia GetIcon() const override { return gfx::ImageSkia(); }
  41   base::ProcessHandle GetProcess() const override {
  42     return base::GetCurrentProcessHandle();
  43   }
  44   int GetUniqueChildProcessId() const override {
  45     // In reality the unique child process ID is not the actual process ID,
  46     // but for testing purposes it shouldn't make difference.
  47     return static_cast<int>(base::GetCurrentProcId());
  48   }
  49   Type GetType() const override { return RENDERER; }
  50   bool SupportNetworkUsage() const override { return false; }
  51   void SetSupportNetworkUsage() override { NOTREACHED(); }
  52   void Refresh() override { refresh_called_ = true; }
  53   bool refresh_called() const { return refresh_called_; }
  54   void set_refresh_called(bool refresh_called) {
  55     refresh_called_ = refresh_called;
  56   }
  57
  58  private:
  59   bool refresh_called_;
  60 };
  61
  62 }  // namespace
  63
  64 class TaskManagerTest : public testing::Test {
  65 };
  66
  67 TEST_F(TaskManagerTest, Basic) {
  68   TaskManager task_manager;
  69   TaskManagerModel* model = task_manager.model_.get();
  70   EXPECT_EQ(0, model->ResourceCount());
  71 }
  72
  73 TEST_F(TaskManagerTest, Resources) {
  74   TaskManager task_manager;
  75   TaskManagerModel* model = task_manager.model_.get();
  76
  77   TestResource resource1, resource2;
  78
  79   task_manager.AddResource(&resource1);
  80   ASSERT_EQ(1, model->ResourceCount());
  81   EXPECT_TRUE(model->IsResourceFirstInGroup(0));
  82   EXPECT_EQ(ASCIIToUTF16("test title"), model->GetResourceTitle(0));
  83   EXPECT_EQ(ASCIIToUTF16("test profile"), model->GetResourceProfileName(0));
  84   EXPECT_EQ(l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT),
  85             model->GetResourceNetworkUsage(0));
  86   EXPECT_EQ(ASCIIToUTF16(kZeroCPUUsage), model->GetResourceCPUUsage(0));
  87
  88   task_manager.AddResource(&resource2);  // Will be in the same group.
  89   ASSERT_EQ(2, model->ResourceCount());
  90   EXPECT_TRUE(model->IsResourceFirstInGroup(0));
  91   EXPECT_FALSE(model->IsResourceFirstInGroup(1));
  92   EXPECT_EQ(ASCIIToUTF16("test title"), model->GetResourceTitle(1));
  93   EXPECT_EQ(ASCIIToUTF16("test profile"), model->GetResourceProfileName(1));
  94   EXPECT_EQ(l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT).c_str(),
  95             model->GetResourceNetworkUsage(1));
  96   EXPECT_EQ(ASCIIToUTF16(kZeroCPUUsage), model->GetResourceCPUUsage(1));
  97
  98   task_manager.RemoveResource(&resource1);
  99   // Now resource2 will be first in group.
 100   ASSERT_EQ(1, model->ResourceCount());
 101   EXPECT_TRUE(model->IsResourceFirstInGroup(0));
 102   EXPECT_EQ(ASCIIToUTF16("test title"), model->GetResourceTitle(0));
 103   EXPECT_EQ(ASCIIToUTF16("test profile"), model->GetResourceProfileName(0));
 104   EXPECT_EQ(l10n_util::GetStringUTF16(IDS_TASK_MANAGER_NA_CELL_TEXT),
 105             model->GetResourceNetworkUsage(0));
 106   EXPECT_EQ(ASCIIToUTF16(kZeroCPUUsage), model->GetResourceCPUUsage(0));
 107
 108   task_manager.RemoveResource(&resource2);
 109   EXPECT_EQ(0, model->ResourceCount());
 110 }
 111
 112 // Tests that the model is calling Refresh() on its resources.
 113 TEST_F(TaskManagerTest, RefreshCalled) {
 114   base::MessageLoop loop;
 115   TaskManager task_manager;
 116   TaskManagerModel* model = task_manager.model_.get();
 117   TestResource resource;
 118
 119   task_manager.AddResource(&resource);
 120   ASSERT_FALSE(resource.refresh_called());
 121   model->update_state_ = TaskManagerModel::TASK_PENDING;
 122   model->Refresh();
 123   ASSERT_TRUE(resource.refresh_called());
 124   task_manager.RemoveResource(&resource);
 125 }