Add vts for microphone enumeration APIs.

Bug: 64038649
Test: run vts --module VtsHalAudioV4_0Target
Change-Id: If75ee585a9d865d010fc7d2a081b930fba022a20
diff --git a/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp b/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp
index de0df40..0bf32b5 100644
--- a/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp
+++ b/audio/core/4.0/vts/functional/AudioPrimaryHidlHalTest.cpp
@@ -74,6 +74,7 @@
 using ReadStatus = ::android::hardware::audio::V4_0::IStreamIn::ReadStatus;
 using ::android::hardware::audio::V4_0::IStreamOut;
 using ::android::hardware::audio::V4_0::IStreamOutCallback;
+using ::android::hardware::audio::V4_0::MicrophoneInfo;
 using ::android::hardware::audio::V4_0::MmapBufferInfo;
 using ::android::hardware::audio::V4_0::MmapPosition;
 using ::android::hardware::audio::V4_0::ParameterValue;
@@ -478,6 +479,17 @@
 }
 
 //////////////////////////////////////////////////////////////////////////////
+/////////////////////////////// getMicrophones ///////////////////////////////
+//////////////////////////////////////////////////////////////////////////////
+
+TEST_F(AudioPrimaryHidlTest, GetMicrophonesTest) {
+    doc::test("Make sure getMicrophones always succeeds");
+    hidl_vec<MicrophoneInfo> microphones;
+    ASSERT_OK(device->getMicrophones(returnIn(res, microphones)));
+    ASSERT_OK(res);
+}
+
+//////////////////////////////////////////////////////////////////////////////
 //////////////////////////////// debugDebug //////////////////////////////////
 //////////////////////////////////////////////////////////////////////////////
 
@@ -1081,6 +1093,14 @@
     ASSERT_OK(stream->updateSinkMetadata(initialMetadata));
 }
 
+TEST_P(InputStreamTest, getActiveMicrophones) {
+    doc::test("Getting active microphones should always succeed");
+    hidl_vec<MicrophoneInfo> microphones;
+    ASSERT_OK(device->getMicrophones(returnIn(res, microphones)));
+    ASSERT_OK(res);
+    ASSERT_TRUE(microphones.size() > 0);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////// StreamOut //////////////////////////////////
 //////////////////////////////////////////////////////////////////////////////