HID backend

device/hid/hid_connection_unittest.cc

+// Copyright (c) 2014 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>
+#include <vector>
+
+#include "base/bind.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "device/hid/hid_connection.h"
+#include "device/hid/hid_service.h"
+#include "net/base/io_buffer.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace device {
+
+namespace {
+
+const int kUSBLUFADemoVID = 0x03eb;
+const int kUSBLUFADemoPID = 0x204f;
+const uint64_t kReport = 0x0903a65d030f8ec9ULL;
+
+int g_read_times = 0;
+void Read(scoped_refptr<HidConnection> conn);
+
+void OnRead(scoped_refptr<HidConnection> conn,
+            bool success, scoped_refptr<net::IOBuffer> buffer, size_t bytes) {
+  if (success) {
+    g_read_times++;
+    EXPECT_EQ(8U, bytes);
+    if (bytes == 8) {
+      uint64_t* data = reinterpret_cast<uint64_t*>(buffer->data());
+      EXPECT_EQ(kReport, *data);
+    } else {
+      base::MessageLoop::current()->Quit();
+    }
+  }
+
+  if (g_read_times < 3){
+    base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(Read, conn));
+  } else {
+    base::MessageLoop::current()->Quit();
+  }
+}
+
+void Read(scoped_refptr<HidConnection> conn) {
+  conn->Read(base::Bind(OnRead, conn));
+}
+
+}  // namespace
+
+
+TEST(HidConnectionTest, Read) {
+  base::MessageLoopForIO message_loop;
+  HidService* service = HidService::GetInstance();
+  ASSERT_TRUE(service);
+
+  std::vector<HidDeviceInfo> devices;
+  service->GetDevices(&devices);
+  std::string target_device;
+  ASSERT_GT(devices.size(), 0U) << "No device found";
+
+  for (std::vector<HidDeviceInfo>::iterator it = devices.begin();
+      it != devices.end();
+      ++it) {
+    if (it->vendor_id == kUSBLUFADemoVID && it->product_id == kUSBLUFADemoPID) {
+      target_device = it->device_id;
+      break;
+    }
+  }
+
+  ASSERT_NE(std::string(""), target_device);
+
+  scoped_refptr<HidConnection> connection = service->Connect(target_device);
+
+  ASSERT_TRUE(connection);
+
+  message_loop.PostTask(FROM_HERE, base::Bind(Read, connection));
+  message_loop.Run();
+}
+
+}  // namespace device