content/browser/gamepad/gamepad_provider_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 "base/memory/scoped_ptr.h"
   6 #include "base/memory/weak_ptr.h"
   7 #include "content/browser/gamepad/gamepad_data_fetcher.h"
   8 #include "content/browser/gamepad/gamepad_provider.h"
   9 #include "content/browser/gamepad/gamepad_test_helpers.h"
  10 #include "content/common/gamepad_hardware_buffer.h"
  11 #include "content/common/gamepad_messages.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace content {
  15
  16 namespace {
  17
  18 using blink::WebGamepads;
  19
  20 // Helper class to generate and record user gesture callbacks.
  21 class UserGestureListener {
  22  public:
  23   UserGestureListener()
  24       : has_user_gesture_(false),
  25         weak_factory_(this) {
  26   }
  27
  28   base::Closure GetClosure() {
  29     return base::Bind(&UserGestureListener::GotUserGesture,
  30                       weak_factory_.GetWeakPtr());
  31   }
  32
  33   bool has_user_gesture() const { return has_user_gesture_; }
  34
  35  private:
  36   void GotUserGesture() {
  37     has_user_gesture_ = true;
  38   }
  39
  40   bool has_user_gesture_;
  41   base::WeakPtrFactory<UserGestureListener> weak_factory_;
  42 };
  43
  44 // Main test fixture
  45 class GamepadProviderTest : public testing::Test, public GamepadTestHelper {
  46  public:
  47   GamepadProvider* CreateProvider(const WebGamepads& test_data) {
  48     mock_data_fetcher_ = new MockGamepadDataFetcher(test_data);
  49     provider_.reset(new GamepadProvider(
  50         scoped_ptr<GamepadDataFetcher>(mock_data_fetcher_)));
  51     return provider_.get();
  52   }
  53
  54  protected:
  55   GamepadProviderTest() {
  56   }
  57
  58   scoped_ptr<GamepadProvider> provider_;
  59
  60   // Pointer owned by the provider.
  61   MockGamepadDataFetcher* mock_data_fetcher_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(GamepadProviderTest);
  64 };
  65
  66 // Crashes. http://crbug.com/106163
  67 // crbug.com/147549
  68 #if defined(OS_ANDROID)
  69 #define MAYBE_PollingAccess DISABLED_PollingAccess
  70 #else
  71 #define MAYBE_PollingAccess PollingAccess
  72 #endif
  73 TEST_F(GamepadProviderTest, MAYBE_PollingAccess) {
  74   WebGamepads test_data;
  75   test_data.length = 1;
  76   test_data.items[0].connected = true;
  77   test_data.items[0].timestamp = 0;
  78   test_data.items[0].buttonsLength = 1;
  79   test_data.items[0].axesLength = 2;
  80   test_data.items[0].buttons[0].value = 1.f;
  81   test_data.items[0].buttons[0].pressed = true;
  82   test_data.items[0].axes[0] = -1.f;
  83   test_data.items[0].axes[1] = .5f;
  84
  85   GamepadProvider* provider = CreateProvider(test_data);
  86   provider->Resume();
  87
  88   message_loop().RunUntilIdle();
  89
  90   mock_data_fetcher_->WaitForDataRead();
  91
  92   // Renderer-side, pull data out of poll buffer.
  93   base::SharedMemoryHandle handle = provider->GetSharedMemoryHandleForProcess(
  94       base::GetCurrentProcessHandle());
  95   scoped_ptr<base::SharedMemory> shared_memory(
  96       new base::SharedMemory(handle, true));
  97   EXPECT_TRUE(shared_memory->Map(sizeof(GamepadHardwareBuffer)));
  98   void* mem = shared_memory->memory();
  99
 100   GamepadHardwareBuffer* hwbuf = static_cast<GamepadHardwareBuffer*>(mem);
 101   // See gamepad_hardware_buffer.h for details on the read discipline.
 102   WebGamepads output;
 103
 104   base::subtle::Atomic32 version;
 105   do {
 106     version = hwbuf->sequence.ReadBegin();
 107     memcpy(&output, &hwbuf->buffer, sizeof(output));
 108   } while (hwbuf->sequence.ReadRetry(version));
 109
 110   EXPECT_EQ(1u, output.length);
 111   EXPECT_EQ(1u, output.items[0].buttonsLength);
 112   EXPECT_EQ(1.f, output.items[0].buttons[0].value);
 113   EXPECT_EQ(true, output.items[0].buttons[0].pressed);
 114   EXPECT_EQ(2u, output.items[0].axesLength);
 115   EXPECT_EQ(-1.f, output.items[0].axes[0]);
 116   EXPECT_EQ(0.5f, output.items[0].axes[1]);
 117 }
 118
 119 // Tests that waiting for a user gesture works properly.
 120 TEST_F(GamepadProviderTest, UserGesture) {
 121   WebGamepads no_button_data;
 122   no_button_data.length = 1;
 123   no_button_data.items[0].connected = true;
 124   no_button_data.items[0].timestamp = 0;
 125   no_button_data.items[0].buttonsLength = 1;
 126   no_button_data.items[0].axesLength = 2;
 127   no_button_data.items[0].buttons[0].value = 0.f;
 128   no_button_data.items[0].buttons[0].pressed = false;
 129   no_button_data.items[0].axes[0] = -1.f;
 130   no_button_data.items[0].axes[1] = .5f;
 131
 132   WebGamepads button_down_data = no_button_data;
 133   button_down_data.items[0].buttons[0].value = 1.f;
 134   button_down_data.items[0].buttons[0].pressed = true;
 135
 136   UserGestureListener listener;
 137   GamepadProvider* provider = CreateProvider(no_button_data);
 138   provider->Resume();
 139
 140   provider->RegisterForUserGesture(listener.GetClosure());
 141   mock_data_fetcher_->WaitForDataReadAndCallbacksIssued();
 142
 143   // It should not have issued our callback.
 144   message_loop().RunUntilIdle();
 145   EXPECT_FALSE(listener.has_user_gesture());
 146
 147   // Set a button down and wait for it to be read twice.
 148   mock_data_fetcher_->SetTestData(button_down_data);
 149   mock_data_fetcher_->WaitForDataReadAndCallbacksIssued();
 150
 151   // It should have issued our callback.
 152   message_loop().RunUntilIdle();
 153   EXPECT_TRUE(listener.has_user_gesture());
 154 }
 155
 156 }  // namespace
 157
 158 }  // namespace content