Volume: Add AIDL placeholder implementation and vts test

Bug: 258124419
Test: atest VtsHalVolumeTargetTest

Change-Id: Ie3eaa820f94be0287ba72b7647d3d7ab8b5c70b8
diff --git a/audio/aidl/vts/VtsHalVolumeTargetTest.cpp b/audio/aidl/vts/VtsHalVolumeTargetTest.cpp
new file mode 100644
index 0000000..3e82854
--- /dev/null
+++ b/audio/aidl/vts/VtsHalVolumeTargetTest.cpp
@@ -0,0 +1,186 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "VtsHalVolumeTest"
+
+#include <Utils.h>
+#include <aidl/Vintf.h>
+#include "EffectHelper.h"
+
+using namespace android;
+
+using aidl::android::hardware::audio::effect::Capability;
+using aidl::android::hardware::audio::effect::Descriptor;
+using aidl::android::hardware::audio::effect::IEffect;
+using aidl::android::hardware::audio::effect::IFactory;
+using aidl::android::hardware::audio::effect::kVolumeTypeUUID;
+using aidl::android::hardware::audio::effect::Parameter;
+using aidl::android::hardware::audio::effect::Volume;
+
+/**
+ * Here we focus on specific parameter checking, general IEffect interfaces testing performed in
+ * VtsAudioEffectTargetTest.
+ */
+enum ParamName { PARAM_INSTANCE_NAME, PARAM_LEVEL_DB, PARAM_MUTE };
+using VolumeParamTestParam =
+        std::tuple<std::pair<std::shared_ptr<IFactory>, Descriptor>, int, bool>;
+
+const std::vector<int> kLevelValues = {Volume::MIN_LEVEL_DB - 1, Volume::MIN_LEVEL_DB, -100,
+                                       Volume::MAX_LEVEL_DB, Volume::MAX_LEVEL_DB + 1};
+
+class VolumeParamTest : public ::testing::TestWithParam<VolumeParamTestParam>, public EffectHelper {
+  public:
+    VolumeParamTest()
+        : mParamLevel(std::get<PARAM_LEVEL_DB>(GetParam())),
+          mParamMute(std::get<PARAM_MUTE>(GetParam())) {
+        std::tie(mFactory, mDescriptor) = std::get<PARAM_INSTANCE_NAME>(GetParam());
+    }
+
+    void SetUp() override {
+        ASSERT_NE(nullptr, mFactory);
+        ASSERT_NO_FATAL_FAILURE(create(mFactory, mEffect, mDescriptor));
+
+        Parameter::Specific specific = getDefaultParamSpecific();
+        Parameter::Common common = EffectHelper::createParamCommon(
+                0 /* session */, 1 /* ioHandle */, 44100 /* iSampleRate */, 44100 /* oSampleRate */,
+                kInputFrameCount /* iFrameCount */, kOutputFrameCount /* oFrameCount */);
+        IEffect::OpenEffectReturn ret;
+        ASSERT_NO_FATAL_FAILURE(open(mEffect, common, specific, &ret, EX_NONE));
+        ASSERT_NE(nullptr, mEffect);
+    }
+    void TearDown() override {
+        ASSERT_NO_FATAL_FAILURE(close(mEffect));
+        ASSERT_NO_FATAL_FAILURE(destroy(mFactory, mEffect));
+    }
+
+    Parameter::Specific getDefaultParamSpecific() {
+        Volume vol = Volume::make<Volume::levelDb>(Volume::MIN_LEVEL_DB);
+        Parameter::Specific specific = Parameter::Specific::make<Parameter::Specific::volume>(vol);
+        return specific;
+    }
+
+    static const long kInputFrameCount = 0x100, kOutputFrameCount = 0x100;
+    std::shared_ptr<IFactory> mFactory;
+    std::shared_ptr<IEffect> mEffect;
+    Descriptor mDescriptor;
+    int mParamLevel = 0;
+    bool mParamMute = false;
+
+    void SetAndGetParameters() {
+        for (auto& it : mTags) {
+            auto& tag = it.first;
+            auto& vol = it.second;
+
+            // validate parameter
+            Descriptor desc;
+            ASSERT_STATUS(EX_NONE, mEffect->getDescriptor(&desc));
+            const bool valid = isTagInRange(it.first, it.second, desc);
+            const binder_exception_t expected = valid ? EX_NONE : EX_ILLEGAL_ARGUMENT;
+
+            // set parameter
+            Parameter expectParam;
+            Parameter::Specific specific;
+            specific.set<Parameter::Specific::volume>(vol);
+            expectParam.set<Parameter::specific>(specific);
+            EXPECT_STATUS(expected, mEffect->setParameter(expectParam)) << expectParam.toString();
+
+            // only get if parameter in range and set success
+            if (expected == EX_NONE) {
+                Parameter getParam;
+                Parameter::Id id;
+                Volume::Id volId;
+                volId.set<Volume::Id::commonTag>(tag);
+                id.set<Parameter::Id::volumeTag>(volId);
+                EXPECT_STATUS(EX_NONE, mEffect->getParameter(id, &getParam));
+
+                EXPECT_EQ(expectParam, getParam) << "\nexpect:" << expectParam.toString()
+                                                 << "\ngetParam:" << getParam.toString();
+            }
+        }
+    }
+
+    void addLevelParam(int level) {
+        Volume vol;
+        vol.set<Volume::levelDb>(level);
+        mTags.push_back({Volume::levelDb, vol});
+    }
+
+    void addMuteParam(bool mute) {
+        Volume vol;
+        vol.set<Volume::mute>(mute);
+        mTags.push_back({Volume::mute, vol});
+    }
+
+    bool isTagInRange(const Volume::Tag& tag, const Volume& vol, const Descriptor& desc) const {
+        const Volume::Capability& volCap = desc.capability.get<Capability::volume>();
+        switch (tag) {
+            case Volume::levelDb: {
+                int level = vol.get<Volume::levelDb>();
+                return isLevelInRange(volCap, level);
+            }
+            case Volume::mute:
+                return true;
+            default:
+                return false;
+        }
+    }
+
+    bool isLevelInRange(const Volume::Capability& cap, int level) const {
+        return level >= Volume::MIN_LEVEL_DB && level <= Volume::MAX_LEVEL_DB &&
+               level <= cap.maxLevel;
+    }
+
+  private:
+    std::vector<std::pair<Volume::Tag, Volume>> mTags;
+    void CleanUp() { mTags.clear(); }
+};
+
+TEST_P(VolumeParamTest, SetAndGetLevel) {
+    EXPECT_NO_FATAL_FAILURE(addLevelParam(mParamLevel));
+    SetAndGetParameters();
+}
+
+TEST_P(VolumeParamTest, SetAndGetMute) {
+    EXPECT_NO_FATAL_FAILURE(addMuteParam(mParamMute));
+    SetAndGetParameters();
+}
+
+INSTANTIATE_TEST_SUITE_P(
+        VolumeTest, VolumeParamTest,
+        ::testing::Combine(testing::ValuesIn(EffectFactoryHelper::getAllEffectDescriptors(
+                                   IFactory::descriptor, kVolumeTypeUUID)),
+                           testing::ValuesIn(kLevelValues), testing::Bool()),
+        [](const testing::TestParamInfo<VolumeParamTest::ParamType>& info) {
+            auto descriptor = std::get<PARAM_INSTANCE_NAME>(info.param).second;
+            std::string level = std::to_string(std::get<PARAM_LEVEL_DB>(info.param));
+            std::string mute = std::to_string(std::get<PARAM_MUTE>(info.param));
+            std::string name = "Implementor_" + descriptor.common.implementor + "_name_" +
+                               descriptor.common.name + "_UUID_" +
+                               descriptor.common.id.uuid.toString() + "_level" + level + "_mute" +
+                               mute;
+            std::replace_if(
+                    name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
+            return name;
+        });
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(VolumeParamTest);
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    ABinderProcess_setThreadPoolMaxThreadCount(1);
+    ABinderProcess_startThreadPool();
+    return RUN_ALL_TESTS();
+}