Add libAudioHal AIDL interface placeholder

Add cpp backend only and ndk backend only conversion.
Add placeholder for DeviceHalInterface and EffectHalInterface.
Add several EffectHalInterface test cases to help testing.

Bug: 261129656
Test: Flash to Cuttlefish and run cts
Test: Flash to Panther and run audio use cases.

Merged-In: Ieaf5d7d72bd7d3e1897964b7abe211456766f443
Change-Id: Ieaf5d7d72bd7d3e1897964b7abe211456766f443
diff --git a/media/libaudiohal/tests/Android.bp b/media/libaudiohal/tests/Android.bp
new file mode 100644
index 0000000..e20f74c
--- /dev/null
+++ b/media/libaudiohal/tests/Android.bp
@@ -0,0 +1,51 @@
+// Copyright (C) 2022 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Headers module is in frameworks/av/Android.bp because modules are not allowed
+// to refer to headers in parent directories and the headers live in
+// frameworks/av/include.
+
+package {
+    default_applicable_licenses: ["frameworks_av_license"],
+}
+
+cc_test {
+    name: "EffectsFactoryHalInterfaceTest",
+    test_suites: ["device-tests"],
+
+    srcs: [
+        "EffectsFactoryHalInterface_test.cpp",
+    ],
+
+    defaults: [
+        "latest_android_media_audio_common_types_cpp_shared",
+    ],
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+        "-Wthread-safety",
+    ],
+
+    shared_libs: [
+        "audioclient-types-aidl-cpp",
+        "libaudiohal",
+        "libutils",
+    ],
+
+    header_libs: [
+        "libaudiohal_headers",
+    ],
+}
diff --git a/media/libaudiohal/tests/EffectsFactoryHalInterface_test.cpp b/media/libaudiohal/tests/EffectsFactoryHalInterface_test.cpp
new file mode 100644
index 0000000..83c7809
--- /dev/null
+++ b/media/libaudiohal/tests/EffectsFactoryHalInterface_test.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#include <cstdint>
+#define LOG_TAG "EffectsFactoryHalInterfaceTest"
+
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+#include <gtest/gtest.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+// EffectsFactoryHalInterface
+TEST(libAudioHalTest, createEffectsFactoryHalInterface) {
+    ASSERT_NE(nullptr, EffectsFactoryHalInterface::create());
+}
+
+TEST(libAudioHalTest, queryNumberEffects) {
+    auto factory = EffectsFactoryHalInterface::create();
+    ASSERT_NE(nullptr, factory);
+
+    uint32_t numEffects = 0;
+    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
+    EXPECT_NE(0ul, numEffects);
+}
+
+TEST(libAudioHalTest, getDescriptorByNumber) {
+    auto factory = EffectsFactoryHalInterface::create();
+    ASSERT_NE(nullptr, factory);
+
+    uint32_t numEffects = 0;
+    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
+    EXPECT_NE(0ul, numEffects);
+
+    effect_descriptor_t desc;
+    for (uint32_t i = 0; i < numEffects; i++) {
+        EXPECT_EQ(OK, factory->getDescriptor(i, &desc));
+    }
+}
+
+TEST(libAudioHalTest, createEffect) {
+    auto factory = EffectsFactoryHalInterface::create();
+    ASSERT_NE(nullptr, factory);
+
+    uint32_t numEffects = 0;
+    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
+    EXPECT_NE(0ul, numEffects);
+
+    effect_descriptor_t desc;
+    for (uint32_t i = 0; i < numEffects; i++) {
+        sp<EffectHalInterface> interface;
+        EXPECT_EQ(OK, factory->getDescriptor(i, &desc));
+        EXPECT_EQ(OK, factory->createEffect(&desc.uuid, 1 /* sessionId */, 1 /* ioId */,
+                                            1 /* deviceId */, &interface));
+    }
+}
+
+TEST(libAudioHalTest, getHalVersion) {
+    auto factory = EffectsFactoryHalInterface::create();
+    ASSERT_NE(nullptr, factory);
+
+    auto version = factory->getHalVersion();
+    EXPECT_NE(0, version.getMajorVersion());
+}
+
+// TODO: b/263986405 Add multi-thread testing
+
+} // namespace android