[Bluetooth] Standardize Bluetooth device address format to XX:XX:XX:XX:XX:XX.

device/bluetooth/bluetooth_device_unittest.cc

+// Copyright 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 "device/bluetooth/bluetooth_device.h"
+
+#include "base/macros.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace device {
+
+TEST(BluetoothDeviceTest, CanonicalizeAddressFormat_AcceptsAllValidFormats) {
+  // There are three valid separators (':', '-', and none).
+  // Case shouldn't matter.
+  const char* const kValidFormats[] = {
+    "1A:2B:3C:4D:5E:6F",
+    "1a:2B:3c:4D:5e:6F",
+    "1a:2b:3c:4d:5e:6f",
+    "1A-2B-3C-4D-5E-6F",
+    "1a-2B-3c-4D-5e-6F",
+    "1a-2b-3c-4d-5e-6f",
+    "1A2B3C4D5E6F",
+    "1a2B3c4D5e6F",
+    "1a2b3c4d5e6f",
+  };
+
+  for (size_t i = 0; i < arraysize(kValidFormats); ++i) {
+    SCOPED_TRACE(std::string("Input format: '") + kValidFormats[i] + "'");
+    EXPECT_EQ("1A:2B:3C:4D:5E:6F",
+              BluetoothDevice::CanonicalizeAddress(kValidFormats[i]));
+  }
+}
+
+TEST(BluetoothDeviceTest, CanonicalizeAddressFormat_RejectsInvalidFormats) {
+  const char* const kValidFormats[] = {
+    // Empty string.
+    "",
+    // Too short.
+    "1A:2B:3C:4D:5E",
+    // Too long.
+    "1A:2B:3C:4D:5E:6F:70",
+    // Missing a separator.
+    "1A:2B:3C:4D:5E6F",
+    // Mixed separators.
+    "1A:2B-3C:4D-5E:6F",
+    // Invalid characters.
+    "1A:2B-3C:4D-5E:6X",
+    // Separators in the wrong place.
+    "1:A2:B3:C4:D5:E6F",
+  };
+
+  for (size_t i = 0; i < arraysize(kValidFormats); ++i) {
+    SCOPED_TRACE(std::string("Input format: '") + kValidFormats[i] + "'");
+    EXPECT_EQ(std::string(),
+              BluetoothDevice::CanonicalizeAddress(kValidFormats[i]));
+  }
+}
+
+}  // namespace device