diff --git a/power/1.0/vts/functional/Android.bp b/power/1.0/vts/functional/Android.bp
index a716f02..5d5676d 100644
--- a/power/1.0/vts/functional/Android.bp
+++ b/power/1.0/vts/functional/Android.bp
@@ -19,5 +19,5 @@
     defaults: ["VtsHalTargetTestDefaults"],
     srcs: ["VtsHalPowerV1_0TargetTest.cpp"],
     static_libs: ["android.hardware.power@1.0"],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/power/1.0/vts/functional/VtsHalPowerV1_0TargetTest.cpp b/power/1.0/vts/functional/VtsHalPowerV1_0TargetTest.cpp
index 999b2b4..ba08ee7 100644
--- a/power/1.0/vts/functional/VtsHalPowerV1_0TargetTest.cpp
+++ b/power/1.0/vts/functional/VtsHalPowerV1_0TargetTest.cpp
@@ -21,9 +21,9 @@
 
 #include <android-base/unique_fd.h>
 #include <android/hardware/power/1.0/IPower.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 #include <fcntl.h>
 #include <algorithm>
@@ -45,23 +45,10 @@
 #define AVAILABLE_GOVERNORS_PATH \
   "/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
 
-// Test environment for Power HIDL HAL.
-class PowerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static PowerHidlEnvironment* Instance() {
-        static PowerHidlEnvironment* instance = new PowerHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IPower>(); }
-};
-
-class PowerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class PowerHidlTest : public testing::TestWithParam<std::string> {
  public:
   virtual void SetUp() override {
-      power = ::testing::VtsHalHidlTargetTestBase::getService<IPower>(
-          PowerHidlEnvironment::Instance()->getServiceName<IPower>());
+      power = IPower::getService(GetParam());
       ASSERT_NE(power, nullptr);
   }
 
@@ -71,7 +58,7 @@
 };
 
 // Sanity check Power::setInteractive.
-TEST_F(PowerHidlTest, SetInteractive) {
+TEST_P(PowerHidlTest, SetInteractive) {
   Return<void> ret;
 
   ret = power->setInteractive(true);
@@ -83,7 +70,7 @@
 
 // Test Power::setInteractive and Power::powerHint(Launch)
 // with each available CPU governor, if available
-TEST_F(PowerHidlTest, TryDifferentGovernors) {
+TEST_P(PowerHidlTest, TryDifferentGovernors) {
   Return<void> ret;
 
   unique_fd fd1(open(CPU_GOVERNOR_PATH, O_RDWR));
@@ -125,7 +112,7 @@
 }
 
 // Sanity check Power::powerHint on good and bad inputs.
-TEST_F(PowerHidlTest, PowerHint) {
+TEST_P(PowerHidlTest, PowerHint) {
   PowerHint badHint = static_cast<PowerHint>(0xA);
   auto hints = {PowerHint::VSYNC,         PowerHint::INTERACTION,
                 PowerHint::VIDEO_ENCODE,  PowerHint::VIDEO_DECODE,
@@ -163,7 +150,7 @@
 }
 
 // Sanity check Power::setFeature() on good and bad inputs.
-TEST_F(PowerHidlTest, SetFeature) {
+TEST_P(PowerHidlTest, SetFeature) {
   Return<void> ret;
   ret = power->setFeature(Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE, true);
   ASSERT_TRUE(ret.isOk());
@@ -178,7 +165,7 @@
 }
 
 // Sanity check Power::getPlatformLowPowerStats().
-TEST_F(PowerHidlTest, GetPlatformLowPowerStats) {
+TEST_P(PowerHidlTest, GetPlatformLowPowerStats) {
   hidl_vec<PowerStatePlatformSleepState> vec;
   Status s;
   auto cb = [&vec, &s](hidl_vec<PowerStatePlatformSleepState> states,
@@ -191,11 +178,7 @@
   ASSERT_TRUE(s == Status::SUCCESS || s == Status::FILESYSTEM_ERROR);
 }
 
-int main(int argc, char **argv) {
-    ::testing::AddGlobalTestEnvironment(PowerHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    PowerHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, PowerHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPower::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/power/1.1/vts/functional/Android.bp b/power/1.1/vts/functional/Android.bp
index de75984..d9a32df 100644
--- a/power/1.1/vts/functional/Android.bp
+++ b/power/1.1/vts/functional/Android.bp
@@ -22,5 +22,5 @@
         "android.hardware.power@1.0",
         "android.hardware.power@1.1",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/power/1.1/vts/functional/VtsHalPowerV1_1TargetTest.cpp b/power/1.1/vts/functional/VtsHalPowerV1_1TargetTest.cpp
index 4427b15..e9a722c 100644
--- a/power/1.1/vts/functional/VtsHalPowerV1_1TargetTest.cpp
+++ b/power/1.1/vts/functional/VtsHalPowerV1_1TargetTest.cpp
@@ -17,9 +17,9 @@
 #define LOG_TAG "power_hidl_hal_test"
 #include <android-base/logging.h>
 #include <android/hardware/power/1.1/IPower.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 using ::android::hardware::power::V1_1::IPower;
 using ::android::hardware::power::V1_1::PowerStateSubsystem;
@@ -29,23 +29,10 @@
 using ::android::hardware::Return;
 using ::android::sp;
 
-// Test environment for Power HIDL HAL.
-class PowerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static PowerHidlEnvironment* Instance() {
-        static PowerHidlEnvironment* instance = new PowerHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IPower>(); }
-};
-
-class PowerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class PowerHidlTest : public testing::TestWithParam<std::string> {
  public:
   virtual void SetUp() override {
-      power = ::testing::VtsHalHidlTargetTestBase::getService<IPower>(
-          PowerHidlEnvironment::Instance()->getServiceName<IPower>());
+      power = IPower::getService(GetParam());
       ASSERT_NE(power, nullptr);
   }
 
@@ -55,7 +42,7 @@
 };
 
 // Sanity check Power::getSubsystemLowPowerStats().
-TEST_F(PowerHidlTest, GetSubsystemLowPowerStats) {
+TEST_P(PowerHidlTest, GetSubsystemLowPowerStats) {
   hidl_vec<PowerStateSubsystem> vec;
   Status s;
   auto cb = [&vec, &s](hidl_vec<PowerStateSubsystem> subsystems,
@@ -70,7 +57,7 @@
 }
 
 // Sanity check Power::powerHintAsync on good and bad inputs.
-TEST_F(PowerHidlTest, PowerHintAsync) {
+TEST_P(PowerHidlTest, PowerHintAsync) {
     PowerHint badHint = static_cast<PowerHint>(0xA);
     auto hints = {PowerHint::VSYNC,        PowerHint::INTERACTION, PowerHint::VIDEO_ENCODE,
                   PowerHint::VIDEO_DECODE, PowerHint::LOW_POWER,   PowerHint::SUSTAINED_PERFORMANCE,
@@ -104,11 +91,7 @@
     } while (std::next_permutation(hints2.begin(), hints2.end(), compareHints));
 }
 
-int main(int argc, char **argv) {
-    ::testing::AddGlobalTestEnvironment(PowerHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    PowerHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, PowerHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPower::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/power/1.2/vts/functional/Android.bp b/power/1.2/vts/functional/Android.bp
index f424bfa..5385faa 100644
--- a/power/1.2/vts/functional/Android.bp
+++ b/power/1.2/vts/functional/Android.bp
@@ -23,5 +23,5 @@
         "android.hardware.power@1.1",
         "android.hardware.power@1.2",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/power/1.2/vts/functional/VtsHalPowerV1_2TargetTest.cpp b/power/1.2/vts/functional/VtsHalPowerV1_2TargetTest.cpp
index 5e92997..a5ecf5d 100644
--- a/power/1.2/vts/functional/VtsHalPowerV1_2TargetTest.cpp
+++ b/power/1.2/vts/functional/VtsHalPowerV1_2TargetTest.cpp
@@ -17,9 +17,9 @@
 #define LOG_TAG "power_hidl_hal_test"
 #include <android-base/logging.h>
 #include <android/hardware/power/1.2/IPower.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 using ::android::sp;
 using ::android::hardware::hidl_vec;
@@ -27,23 +27,10 @@
 using ::android::hardware::power::V1_2::IPower;
 using ::android::hardware::power::V1_2::PowerHint;
 
-// Test environment for Power HIDL HAL.
-class PowerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static PowerHidlEnvironment* Instance() {
-        static PowerHidlEnvironment* instance = new PowerHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IPower>(); }
-};
-
-class PowerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class PowerHidlTest : public testing::TestWithParam<std::string> {
    public:
     virtual void SetUp() override {
-        power = ::testing::VtsHalHidlTargetTestBase::getService<IPower>(
-            PowerHidlEnvironment::Instance()->getServiceName<IPower>());
+        power = IPower::getService(GetParam());
         ASSERT_NE(power, nullptr);
     }
 
@@ -51,7 +38,7 @@
 };
 
 // Sanity check Power::PowerHintAsync_1_2 on good and bad inputs.
-TEST_F(PowerHidlTest, PowerHintAsync_1_2) {
+TEST_P(PowerHidlTest, PowerHintAsync_1_2) {
     std::vector<PowerHint> hints;
     for (uint32_t i = static_cast<uint32_t>(PowerHint::VSYNC);
          i <= static_cast<uint32_t>(PowerHint::CAMERA_SHOT); ++i) {
@@ -89,11 +76,8 @@
     } while (std::next_permutation(hints2.begin(), hints2.end(), compareHints));
 }
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(PowerHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    PowerHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, PowerHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPower::descriptor)),
+        android::hardware::PrintInstanceNameToString);
+
diff --git a/power/1.3/vts/functional/Android.bp b/power/1.3/vts/functional/Android.bp
index 06f6e7a..77e8619 100644
--- a/power/1.3/vts/functional/Android.bp
+++ b/power/1.3/vts/functional/Android.bp
@@ -24,5 +24,5 @@
         "android.hardware.power@1.2",
         "android.hardware.power@1.3",
     ],
-    test_suites: ["general-tests"],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/power/1.3/vts/functional/VtsHalPowerV1_3TargetTest.cpp b/power/1.3/vts/functional/VtsHalPowerV1_3TargetTest.cpp
index af1a1d8..3cf2adc 100644
--- a/power/1.3/vts/functional/VtsHalPowerV1_3TargetTest.cpp
+++ b/power/1.3/vts/functional/VtsHalPowerV1_3TargetTest.cpp
@@ -17,9 +17,9 @@
 #define LOG_TAG "power_hidl_hal_test"
 #include <android-base/logging.h>
 #include <android/hardware/power/1.3/IPower.h>
-
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
+#include <hidl/ServiceManagement.h>
 
 using ::android::sp;
 using ::android::hardware::hidl_vec;
@@ -27,38 +27,21 @@
 using ::android::hardware::power::V1_3::IPower;
 using ::android::hardware::power::V1_3::PowerHint;
 
-// Test environment for Power HIDL HAL.
-class PowerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static PowerHidlEnvironment* Instance() {
-        static PowerHidlEnvironment* instance = new PowerHidlEnvironment;
-        return instance;
-    }
-
-    virtual void registerTestServices() override { registerTestService<IPower>(); }
-};
-
-class PowerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class PowerHidlTest : public testing::TestWithParam<std::string> {
    public:
     virtual void SetUp() override {
-        power = ::testing::VtsHalHidlTargetTestBase::getService<IPower>(
-            PowerHidlEnvironment::Instance()->getServiceName<IPower>());
+        power = IPower::getService(GetParam());
         ASSERT_NE(power, nullptr);
     }
 
     sp<IPower> power;
 };
 
-TEST_F(PowerHidlTest, PowerHintAsync_1_3) {
+TEST_P(PowerHidlTest, PowerHintAsync_1_3) {
     ASSERT_TRUE(power->powerHintAsync_1_3(PowerHint::EXPENSIVE_RENDERING, 0).isOk());
 }
 
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(PowerHidlEnvironment::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    PowerHidlEnvironment::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, PowerHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPower::descriptor)),
+        android::hardware::PrintInstanceNameToString);
diff --git a/power/stats/1.0/vts/functional/Android.bp b/power/stats/1.0/vts/functional/Android.bp
index f564cbe..ab47061 100644
--- a/power/stats/1.0/vts/functional/Android.bp
+++ b/power/stats/1.0/vts/functional/Android.bp
@@ -33,4 +33,5 @@
         "libfmq",
         "libutils",
     ],
+    test_suites: ["general-tests", "vts-core"],
 }
diff --git a/power/stats/1.0/vts/functional/VtsHalPowerStatsV1_0TargetTest.cpp b/power/stats/1.0/vts/functional/VtsHalPowerStatsV1_0TargetTest.cpp
index 835a47b..3359669 100644
--- a/power/stats/1.0/vts/functional/VtsHalPowerStatsV1_0TargetTest.cpp
+++ b/power/stats/1.0/vts/functional/VtsHalPowerStatsV1_0TargetTest.cpp
@@ -16,13 +16,15 @@
 
 #define LOG_TAG "android.power.stats.vts"
 
-#include <VtsHalHidlTargetTestBase.h>
-#include <VtsHalHidlTargetTestEnvBase.h>
 #include <android-base/logging.h>
 #include <android/hardware/power/stats/1.0/IPowerStats.h>
 #include <fmq/MessageQueue.h>
+#include <gtest/gtest.h>
+#include <hidl/GtestPrinter.h>
 #include <hidl/MQDescriptor.h>
+#include <hidl/ServiceManagement.h>
 #include <inttypes.h>
+
 #include <algorithm>
 #include <random>
 #include <thread>
@@ -49,23 +51,11 @@
 }  // namespace
 
 typedef hardware::MessageQueue<EnergyData, kSynchronizedReadWrite> MessageQueueSync;
-// Test environment for Power HIDL HAL.
-class PowerStatsHidlEnv : public ::testing::VtsHalHidlTargetTestEnvBase {
-   public:
-    // get the test environment singleton
-    static PowerStatsHidlEnv* Instance() {
-        static PowerStatsHidlEnv* instance = new PowerStatsHidlEnv;
-        return instance;
-    }
 
-    virtual void registerTestServices() override { registerTestService<IPowerStats>(); }
-};
-
-class PowerStatsHidlTest : public ::testing::VtsHalHidlTargetTestBase {
+class PowerStatsHidlTest : public ::testing::TestWithParam<std::string> {
    public:
     virtual void SetUp() override {
-        service_ = ::testing::VtsHalHidlTargetTestBase::getService<IPowerStats>(
-            PowerStatsHidlEnv::Instance()->getServiceName<IPowerStats>());
+        service_ = IPowerStats::getService(GetParam());
         ASSERT_NE(service_, nullptr);
     }
 
@@ -157,7 +147,7 @@
 }
 
 // Each PowerEntity must have a valid name
-TEST_F(PowerStatsHidlTest, ValidatePowerEntityNames) {
+TEST_P(PowerStatsHidlTest, ValidatePowerEntityNames) {
     hidl_vec<PowerEntityInfo> infos;
     getInfos(infos);
     for (auto info : infos) {
@@ -166,18 +156,18 @@
 }
 
 // Each PowerEntity must have a unique ID
-TEST_F(PowerStatsHidlTest, ValidatePowerEntityIds) {
+TEST_P(PowerStatsHidlTest, ValidatePowerEntityIds) {
     hidl_vec<PowerEntityInfo> infos;
     getInfos(infos);
 
-    set<uint32_t> ids;
+    std::set<uint32_t> ids;
     for (auto info : infos) {
         ASSERT_TRUE(ids.insert(info.powerEntityId).second);
     }
 }
 
 // Each PowerEntityStateSpace must have an associated PowerEntityInfo
-TEST_F(PowerStatsHidlTest, ValidateStateInfoAssociation) {
+TEST_P(PowerStatsHidlTest, ValidateStateInfoAssociation) {
     hidl_vec<PowerEntityInfo> infos;
     getInfos(infos);
 
@@ -195,7 +185,7 @@
 }
 
 // Each state must have a valid name
-TEST_F(PowerStatsHidlTest, ValidateStateNames) {
+TEST_P(PowerStatsHidlTest, ValidateStateNames) {
     hidl_vec<PowerEntityStateSpace> stateSpaces;
     getStateSpaces(stateSpaces);
 
@@ -207,12 +197,12 @@
 }
 
 // Each state must have an ID that is unique to the PowerEntityStateSpace
-TEST_F(PowerStatsHidlTest, ValidateStateUniqueIds) {
+TEST_P(PowerStatsHidlTest, ValidateStateUniqueIds) {
     hidl_vec<PowerEntityStateSpace> stateSpaces;
     getStateSpaces(stateSpaces);
 
     for (auto stateSpace : stateSpaces) {
-        set<uint32_t> stateIds;
+        std::set<uint32_t> stateIds;
         for (auto state : stateSpace.states) {
             ASSERT_TRUE(stateIds.insert(state.powerEntityStateId).second);
         }
@@ -221,7 +211,7 @@
 
 // getPowerEntityStateInfo must support passing in requested IDs
 // Results must contain state space information for all requested IDs
-TEST_F(PowerStatsHidlTest, ValidateStateInfoAssociationSelect) {
+TEST_P(PowerStatsHidlTest, ValidateStateInfoAssociationSelect) {
     std::vector<uint32_t> randomIds;
     getRandomIds(randomIds);
 
@@ -244,7 +234,7 @@
 }
 
 // Requested state space info must match initially obtained stateinfos
-TEST_F(PowerStatsHidlTest, ValidateStateInfoSelect) {
+TEST_P(PowerStatsHidlTest, ValidateStateInfoSelect) {
     hidl_vec<PowerEntityStateSpace> stateSpaces;
     getStateSpaces(stateSpaces);
     if (stateSpaces.size() == 0) {
@@ -279,7 +269,7 @@
 
 // stateResidencyResults must contain results for every PowerEntityStateSpace
 // returned by getPowerEntityStateInfo
-TEST_F(PowerStatsHidlTest, ValidateResidencyResultsAssociation) {
+TEST_P(PowerStatsHidlTest, ValidateResidencyResultsAssociation) {
     hidl_vec<PowerEntityStateSpace> stateSpaces;
     getStateSpaces(stateSpaces);
 
@@ -311,7 +301,7 @@
 // getPowerEntityStateResidencyData must support passing in requested IDs
 // stateResidencyResults must contain results for each PowerEntityStateSpace
 // returned by getPowerEntityStateInfo
-TEST_F(PowerStatsHidlTest, ValidateResidencyResultsAssociationSelect) {
+TEST_P(PowerStatsHidlTest, ValidateResidencyResultsAssociationSelect) {
     std::vector<uint32_t> randomIds;
     getRandomIds(randomIds);
     if (randomIds.empty()) {
@@ -346,7 +336,7 @@
     }
 }
 
-TEST_F(PowerStatsHidlTest, ValidateRailInfo) {
+TEST_P(PowerStatsHidlTest, ValidateRailInfo) {
     hidl_vec<RailInfo> rails[2];
     Status s;
     auto cb = [&rails, &s](hidl_vec<RailInfo> rail_subsys, Status status) {
@@ -359,7 +349,7 @@
         /* Rails size should be non-zero on SUCCESS*/
         ASSERT_NE(rails[0].size(), 0);
         /* check if indices returned are unique*/
-        set<uint32_t> ids;
+        std::set<uint32_t> ids;
         for (auto rail : rails[0]) {
             ASSERT_TRUE(ids.insert(rail.index).second);
         }
@@ -402,7 +392,7 @@
     }
 }
 
-TEST_F(PowerStatsHidlTest, ValidateAllPowerData) {
+TEST_P(PowerStatsHidlTest, ValidateAllPowerData) {
     hidl_vec<EnergyData> measurements[2];
     Status s;
     auto cb = [&measurements, &s](hidl_vec<EnergyData> measure, Status status) {
@@ -451,7 +441,7 @@
     }
 }
 
-TEST_F(PowerStatsHidlTest, ValidateFilteredPowerData) {
+TEST_P(PowerStatsHidlTest, ValidateFilteredPowerData) {
     hidl_vec<RailInfo> rails;
     hidl_vec<EnergyData> measurements;
     hidl_vec<uint32_t> indices;
@@ -559,23 +549,19 @@
     }
 }
 
-TEST_F(PowerStatsHidlTest, StreamEnergyData) {
+TEST_P(PowerStatsHidlTest, StreamEnergyData) {
     std::time_t seed = std::time(nullptr);
     std::srand(seed);
     std::thread thread1 = std::thread(readEnergy, service_, std::rand() % 5000);
     thread1.join();
 }
 
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, PowerStatsHidlTest,
+        testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPowerStats::descriptor)),
+        android::hardware::PrintInstanceNameToString);
+
 }  // namespace vts
 }  // namespace stats
 }  // namespace power
 }  // namespace android
-
-int main(int argc, char** argv) {
-    ::testing::AddGlobalTestEnvironment(android::power::stats::vts::PowerStatsHidlEnv::Instance());
-    ::testing::InitGoogleTest(&argc, argv);
-    android::power::stats::vts::PowerStatsHidlEnv::Instance()->init(&argc, argv);
-    int status = RUN_ALL_TESTS();
-    LOG(INFO) << "Test result = " << status;
-    return status;
-}