bluetooth: Return false for IsPresent only when bluetooth is not supported

device/bluetooth/bluetooth_adapter_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_adapter.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 412 matching lines @@
 }
 
 // TODO(scheib): Enable BluetoothTest fixture tests on all platforms.
 #if defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 TEST_F(BluetoothTest, ConstructDefaultAdapter) {
   InitWithDefaultAdapter();
   if (!adapter_->IsPresent()) {
     LOG(WARNING) << "Bluetooth adapter not present; skipping unit test.";
     return;
   }
-  EXPECT_GT(adapter_->GetAddress().length(), 0u);
-  EXPECT_GT(adapter_->GetName().length(), 0u);
+
+  bool expected = false;
+// MacOS returns empty for name and address if the adapter is off.
+#if defined(OS_MACOSX)
+  expected = !adapter_->IsPowered();
+#endif  // defined(OS_MACOSX)
+
+  EXPECT_EQ(expected, adapter_->GetAddress().empty());
+  EXPECT_EQ(expected, adapter_->GetName().empty());
+
   EXPECT_TRUE(adapter_->IsPresent());
   // Don't know on test machines if adapter will be powered or not, but
   // the call should be safe to make and consistent.
   EXPECT_EQ(adapter_->IsPowered(), adapter_->IsPowered());
   EXPECT_FALSE(adapter_->IsDiscoverable());
   EXPECT_FALSE(adapter_->IsDiscovering());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX) || defined(OS_WIN)
 
 // TODO(scheib): Enable BluetoothTest fixture tests on all platforms.
@@ skipping 416 matching lines @@
                                GetConnectErrorCallback(Call::NOT_EXPECTED));
   SimulateGattConnection(device);
   EXPECT_EQ(1u, adapter_->GetDevices().size());
   RemoveTimedOutDevices();
   EXPECT_EQ(0, observer.device_removed_count());
   EXPECT_EQ(1u, adapter_->GetDevices().size());
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
 }  // namespace device