This patch will loop through the soundcard and return a list of available devices when the AudioI...

media/audio/audio_input_device_unittest.cc

Index: media/audio/audio_input_device_unittest.cc
diff --git a/media/audio/audio_input_device_unittest.cc b/media/audio/audio_input_device_unittest.cc
index 1f342ba9e625d0696d47d63fdcac7d7c1f696582..7812d3f4f37ac898d7d668902fb7470f14250217 100644
--- a/media/audio/audio_input_device_unittest.cc
+++ b/media/audio/audio_input_device_unittest.cc
@@ -22,8 +22,8 @@ TEST(AudioInputDeviceTest, EnumerateDevices) {
 
     // Other devices should have non-empty name and id.
     while (it != device_names.end()) {
-      EXPECT_EQ("", it->device_name);
-      EXPECT_EQ("", it->unique_id);
+      EXPECT_NE("", it->device_name);
+      EXPECT_NE("", it->unique_id);
       ++it;
     }
   }