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// Copyright (c) 2012 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 <string.h>
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/gamepad/gamepad_test_helpers.h"
#include "content/browser/renderer_host/pepper/browser_ppapi_host_test.h"
#include "content/browser/renderer_host/pepper/pepper_gamepad_host.h"
#include "content/common/gamepad_hardware_buffer.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/host/host_message_context.h"
#include "ppapi/proxy/gamepad_resource.h"
#include "ppapi/proxy/ppapi_messages.h"
#include "ppapi/proxy/resource_message_params.h"
#include "ppapi/shared_impl/ppb_gamepad_shared.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
class PepperGamepadHostTest
: public testing::Test,
public BrowserPpapiHostTest {
public:
PepperGamepadHostTest() {
}
virtual ~PepperGamepadHostTest() {
}
void ConstructService(const WebKit::WebGamepads& test_data) {
service_.reset(new GamepadServiceTestConstructor(test_data));
}
GamepadService* gamepad_service() { return service_->gamepad_service(); }
protected:
scoped_ptr<GamepadServiceTestConstructor> service_;
DISALLOW_COPY_AND_ASSIGN(PepperGamepadHostTest);
};
inline ptrdiff_t AddressDiff(const void* a, const void* b) {
return static_cast<const char*>(a) - static_cast<const char*>(b);
}
} // namespace
// Validate the memory layout of the Pepper proxy struct matches the content
// one. The proxy can't depend on content so has a duplicate definition. This
// code can see both definitions so we do the validation here.
TEST_F(PepperGamepadHostTest, ValidateHardwareBuffersMatch) {
// Hardware buffer.
COMPILE_ASSERT(sizeof(ppapi::ContentGamepadHardwareBuffer) ==
sizeof(GamepadHardwareBuffer),
gamepad_hardware_buffers_must_match);
ppapi::ContentGamepadHardwareBuffer ppapi_buf;
GamepadHardwareBuffer content_buf;
EXPECT_EQ(AddressDiff(&content_buf.sequence, &content_buf),
AddressDiff(&ppapi_buf.sequence, &ppapi_buf));
EXPECT_EQ(AddressDiff(&content_buf.buffer, &content_buf),
AddressDiff(&ppapi_buf.buffer, &ppapi_buf));
}
TEST_F(PepperGamepadHostTest, ValidateGamepadsMatch) {
// Gamepads.
COMPILE_ASSERT(sizeof(ppapi::WebKitGamepads) ==
sizeof(WebKit::WebGamepads),
gamepads_data_must_match);
ppapi::WebKitGamepads ppapi_gamepads;
WebKit::WebGamepads web_gamepads;
EXPECT_EQ(AddressDiff(&web_gamepads.length, &web_gamepads),
AddressDiff(&ppapi_gamepads.length, &ppapi_gamepads));
// See comment below on storage & the EXPECT macro.
size_t webkit_items_length_cap = WebKit::WebGamepads::itemsLengthCap;
size_t ppapi_items_length_cap = ppapi::WebKitGamepads::kItemsLengthCap;
EXPECT_EQ(webkit_items_length_cap, ppapi_items_length_cap);
for (size_t i = 0; i < web_gamepads.itemsLengthCap; i++) {
EXPECT_EQ(AddressDiff(&web_gamepads.items[0], &web_gamepads),
AddressDiff(&ppapi_gamepads.items[0], &ppapi_gamepads));
}
}
TEST_F(PepperGamepadHostTest, ValidateGamepadMatch) {
// Gamepad.
COMPILE_ASSERT(sizeof(ppapi::WebKitGamepad) ==
sizeof(WebKit::WebGamepad),
gamepad_data_must_match);
ppapi::WebKitGamepad ppapi_gamepad;
WebKit::WebGamepad web_gamepad;
// Using EXPECT seems to force storage for the parameter, which the constants
// in the WebKit/PPAPI headers don't have. So we have to use temporaries
// before comparing them.
size_t webkit_id_length_cap = WebKit::WebGamepad::idLengthCap;
size_t ppapi_id_length_cap = ppapi::WebKitGamepad::kIdLengthCap;
EXPECT_EQ(webkit_id_length_cap, ppapi_id_length_cap);
size_t webkit_axes_length_cap = WebKit::WebGamepad::axesLengthCap;
size_t ppapi_axes_length_cap = ppapi::WebKitGamepad::kAxesLengthCap;
EXPECT_EQ(webkit_axes_length_cap, ppapi_axes_length_cap);
size_t webkit_buttons_length_cap = WebKit::WebGamepad::buttonsLengthCap;
size_t ppapi_buttons_length_cap = ppapi::WebKitGamepad::kButtonsLengthCap;
EXPECT_EQ(webkit_buttons_length_cap, ppapi_buttons_length_cap);
EXPECT_EQ(AddressDiff(&web_gamepad.connected, &web_gamepad),
AddressDiff(&ppapi_gamepad.connected, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.id, &web_gamepad),
AddressDiff(&ppapi_gamepad.id, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.timestamp, &web_gamepad),
AddressDiff(&ppapi_gamepad.timestamp, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.axesLength, &web_gamepad),
AddressDiff(&ppapi_gamepad.axes_length, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.axes, &web_gamepad),
AddressDiff(&ppapi_gamepad.axes, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.buttonsLength, &web_gamepad),
AddressDiff(&ppapi_gamepad.buttons_length, &ppapi_gamepad));
EXPECT_EQ(AddressDiff(&web_gamepad.buttons, &web_gamepad),
AddressDiff(&ppapi_gamepad.buttons, &ppapi_gamepad));
}
TEST_F(PepperGamepadHostTest, WaitForReply) {
WebKit::WebGamepads default_data;
memset(&default_data, 0, sizeof(WebKit::WebGamepads));
default_data.length = 1;
default_data.items[0].connected = true;
default_data.items[0].buttonsLength = 1;
ConstructService(default_data);
PP_Instance pp_instance = 12345;
PP_Resource pp_resource = 67890;
PepperGamepadHost gamepad_host(gamepad_service(), GetBrowserPpapiHost(),
pp_instance, pp_resource);
// Synthesize a request for gamepad data.
ppapi::host::HostMessageContext context(
ppapi::proxy::ResourceMessageCallParams(pp_resource, 1));
EXPECT_EQ(PP_OK_COMPLETIONPENDING,
gamepad_host.OnResourceMessageReceived(
PpapiHostMsg_Gamepad_RequestMemory(),
&context));
// Wait for the gamepad background thread to read twice to make sure we
// don't get a message yet (see below for why).
MockGamepadDataFetcher* fetcher = service_->data_fetcher();
fetcher->WaitForDataRead();
fetcher->WaitForDataRead();
// It should not have sent the callback message.
service_->message_loop().RunUntilIdle();
EXPECT_EQ(0u, sink().message_count());
// Set a button down and wait for it to be read twice.
//
// We wait for two reads before calling RunAllPending because the provider
// will read the data on the background thread (setting the event) and *then*
// will issue the callback on our thread. Waiting for it to read twice
// ensures that it was able to issue callbacks for the first read (if it
// issued one) before we try to check for it.
WebKit::WebGamepads button_down_data = default_data;
button_down_data.items[0].buttons[0] = 1.f;
fetcher->SetTestData(button_down_data);
fetcher->WaitForDataRead();
fetcher->WaitForDataRead();
// It should have sent a callback.
service_->message_loop().RunUntilIdle();
ppapi::proxy::ResourceMessageReplyParams reply_params;
IPC::Message reply_msg;
ASSERT_TRUE(sink().GetFirstResourceReplyMatching(
PpapiPluginMsg_Gamepad_SendMemory::ID, &reply_params, &reply_msg));
// Extract the shared memory handle.
base::SharedMemoryHandle reply_handle;
EXPECT_TRUE(reply_params.TakeSharedMemoryHandleAtIndex(0, &reply_handle));
// Validate the shared memory.
base::SharedMemory shared_memory(reply_handle, true);
EXPECT_TRUE(shared_memory.Map(sizeof(ppapi::ContentGamepadHardwareBuffer)));
const ppapi::ContentGamepadHardwareBuffer* buffer =
static_cast<const ppapi::ContentGamepadHardwareBuffer*>(
shared_memory.memory());
EXPECT_EQ(button_down_data.length, buffer->buffer.length);
EXPECT_EQ(button_down_data.items[0].buttonsLength,
buffer->buffer.items[0].buttons_length);
for (size_t i = 0; i < ppapi::WebKitGamepad::kButtonsLengthCap; i++) {
EXPECT_EQ(button_down_data.items[0].buttons[i],
buffer->buffer.items[0].buttons[i]);
}
// Duplicate requests should be denied.
EXPECT_EQ(PP_ERROR_FAILED,
gamepad_host.OnResourceMessageReceived(
PpapiHostMsg_Gamepad_RequestMemory(),
&context));
}
} // namespace content
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