Add unit test for ArcBluetoothBridge and TypeConverter

components/arc/bluetooth/bluetooth_type_converters_unittest.cc

+// Copyright 2016 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 "components/arc/bluetooth/bluetooth_type_converters.h"
+
+#include <string>
+#include <vector>
+
+#include "device/bluetooth/bluetooth_gatt_service.h"
+#include "device/bluetooth/bluetooth_uuid.h"
+#include "mojo/public/cpp/bindings/array.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace mojo {
+
+TEST(BluetoothTypeConvertorTest, ConvertMojoBluetoothAddressFromString) {
+  const std::string kAddressStr = "1A:2B:3C:4D:5E:6F";

[palmer, 2016/08/03 21:16:44]

Minor nit: You could save some lines by moving these repeated declarations into
the anonymous namespace. (Same with the repeated declarations in the 3rd and 4th
tests.)

[puthik_chromium, 2016/08/03 22:49:42]

Done.

+  const uint8_t kAddressArray[] = {0x1a, 0x2b, 0x3c, 0x4d, 0x5e, 0x6f};
+  const size_t kAddressSize = 6;
+
+  arc::mojom::BluetoothAddressPtr addressMojo =
+      arc::mojom::BluetoothAddress::From(kAddressStr);
+  EXPECT_EQ(kAddressSize, addressMojo->address.size());
+  for (size_t i = 0; i < kAddressSize; i++) {
+    EXPECT_EQ(kAddressArray[i], addressMojo->address[i]);
+  }
+}
+
+TEST(BluetoothTypeConvertorTest, ConvertMojoBluetoothAddressToString) {
+  const std::string kAddressStr = "1A:2B:3C:4D:5E:6F";
+  const uint8_t kAddressArray[] = {0x1a, 0x2b, 0x3c, 0x4d, 0x5e, 0x6f};
+  const size_t kAddressSize = 6;
+
+  arc::mojom::BluetoothAddressPtr addressMojo =
+      arc::mojom::BluetoothAddress::New();
+  for (size_t i = 0; i < kAddressSize; i++) {
+    addressMojo->address.push_back(kAddressArray[i]);
+  }
+  EXPECT_EQ(kAddressStr, addressMojo->To<std::string>());
+}
+
+TEST(BluetoothTypeConvertorTest,
+     ConvertMojoBluetoothUUIDFromDeviceBluetoothUUID) {
+  const std::string kUuidStr = "12345678-1234-5678-9abc-def123456789";
+  const uint8_t kUuidArray[] = {0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78,
+                                0x9a, 0xbc, 0xde, 0xf1, 0x23, 0x45, 0x67, 0x89};
+  const size_t kUuidSize = 16;
+
+  device::BluetoothUUID uuidDevice(kUuidStr);
+  arc::mojom::BluetoothUUIDPtr uuidMojo =
+      arc::mojom::BluetoothUUID::From(uuidDevice);
+  EXPECT_EQ(kUuidSize, uuidMojo->uuid.size());
+  for (size_t i = 0; i < kUuidSize; i++) {
+    EXPECT_EQ(kUuidArray[i], uuidMojo->uuid[i]);
+  }
+}
+
+TEST(BluetoothTypeConvertorTest,
+     ConvertMojoBluetoothUUIDToDeviceBluetoothUUID) {
+  const std::string kUuidStr = "12345678-1234-5678-9abc-def123456789";
+  const uint8_t kUuidArray[] = {0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78,
+                                0x9a, 0xbc, 0xde, 0xf1, 0x23, 0x45, 0x67, 0x89};
+  const size_t kUuidSize = 16;
+
+  arc::mojom::BluetoothUUIDPtr uuidMojo = arc::mojom::BluetoothUUID::New();
+  for (size_t i = 0; i < kUuidSize; i++) {
+    uuidMojo->uuid.push_back(kUuidArray[i]);
+  }
+  EXPECT_EQ(kUuidStr, uuidMojo.To<device::BluetoothUUID>().canonical_value());
+}
+

[palmer, 2016/08/03 21:16:44]

It might be good to have some negative tests — tests you expect to fail, because
the incoming data is bogus.

[puthik_chromium, 2016/08/03 22:49:42]

There is a high chance that it will crash if the input is bogus. So I don't
think we need to have the test here.

+}  // namespace mojo