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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "contexthub_hidl_hal_test"
     18 
     19 #include <VtsHalHidlTargetTestBase.h>
     20 #include <VtsHalHidlTargetTestEnvBase.h>
     21 #include <android-base/logging.h>
     22 #include <android/hardware/contexthub/1.0/IContexthub.h>
     23 #include <android/hardware/contexthub/1.0/IContexthubCallback.h>
     24 #include <android/hardware/contexthub/1.0/types.h>
     25 #include <android/log.h>
     26 #include <log/log.h>
     27 
     28 #include <cinttypes>
     29 #include <future>
     30 #include <utility>
     31 
     32 using ::android::hardware::Return;
     33 using ::android::hardware::Void;
     34 using ::android::hardware::hidl_string;
     35 using ::android::hardware::hidl_vec;
     36 using ::android::hardware::contexthub::V1_0::AsyncEventType;
     37 using ::android::hardware::contexthub::V1_0::ContextHub;
     38 using ::android::hardware::contexthub::V1_0::ContextHubMsg;
     39 using ::android::hardware::contexthub::V1_0::HubAppInfo;
     40 using ::android::hardware::contexthub::V1_0::IContexthub;
     41 using ::android::hardware::contexthub::V1_0::IContexthubCallback;
     42 using ::android::hardware::contexthub::V1_0::NanoAppBinary;
     43 using ::android::hardware::contexthub::V1_0::Result;
     44 using ::android::hardware::contexthub::V1_0::TransactionResult;
     45 using ::android::sp;
     46 
     47 #define ASSERT_OK(result) ASSERT_EQ(result, Result::OK)
     48 #define EXPECT_OK(result) EXPECT_EQ(result, Result::OK)
     49 
     50 namespace {
     51 
     52 // App ID with vendor "GoogT" (Google Testing), app identifier 0x555555. This
     53 // app ID is reserved and must never appear in the list of loaded apps.
     54 constexpr uint64_t kNonExistentAppId = 0x476f6f6754555555;
     55 
     56 // Helper that does explicit conversion of an enum class to its underlying/base
     57 // type. Useful for stream output of enum values.
     58 template<typename EnumType>
     59 constexpr typename std::underlying_type<EnumType>::type asBaseType(
     60     EnumType value) {
     61   return static_cast<typename std::underlying_type<EnumType>::type>(value);
     62 }
     63 
     64 // Synchronously queries IContexthub::getHubs() and returns the result
     65 hidl_vec<ContextHub> getHubsSync(sp<IContexthub> hubApi) {
     66   hidl_vec<ContextHub> hubList;
     67   std::promise<void> barrier;
     68 
     69   hubApi->getHubs([&hubList, &barrier](const hidl_vec<ContextHub>& hubs) {
     70     hubList = hubs;
     71     barrier.set_value();
     72   });
     73   barrier.get_future().wait_for(std::chrono::seconds(1));
     74 
     75   return hubList;
     76 }
     77 
     78 // Gets a list of valid hub IDs in the system
     79 std::vector<uint32_t> getHubIds() {
     80   static std::vector<uint32_t> hubIds;
     81 
     82   if (hubIds.size() == 0) {
     83     sp<IContexthub> hubApi = ::testing::VtsHalHidlTargetTestBase::getService<IContexthub>();
     84 
     85     if (hubApi != nullptr) {
     86       for (ContextHub hub : getHubsSync(hubApi)) {
     87         hubIds.push_back(hub.hubId);
     88       }
     89     }
     90   }
     91 
     92   ALOGD("Running tests against all %zu reported hubs", hubIds.size());
     93   return hubIds;
     94 }
     95 
     96 // Test environment for Contexthub HIDL HAL.
     97 class ContexthubHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
     98  public:
     99   // get the test environment singleton
    100   static ContexthubHidlEnvironment* Instance() {
    101     static ContexthubHidlEnvironment* instance = new ContexthubHidlEnvironment;
    102     return instance;
    103   }
    104 
    105   virtual void registerTestServices() override { registerTestService<IContexthub>(); }
    106  private:
    107   ContexthubHidlEnvironment() {}
    108 };
    109 
    110 // Base test fixture that initializes the HAL and makes the context hub API
    111 // handle available
    112 class ContexthubHidlTestBase : public ::testing::VtsHalHidlTargetTestBase {
    113  public:
    114   virtual void SetUp() override {
    115     hubApi = ::testing::VtsHalHidlTargetTestBase::getService<IContexthub>(
    116         ContexthubHidlEnvironment::Instance()->getServiceName<IContexthub>());
    117     ASSERT_NE(hubApi, nullptr);
    118 
    119     // getHubs() must be called at least once for proper initialization of the
    120     // HAL implementation
    121     getHubsSync(hubApi);
    122   }
    123 
    124   virtual void TearDown() override {}
    125 
    126   sp<IContexthub> hubApi;
    127 };
    128 
    129 // Test fixture parameterized by hub ID
    130 class ContexthubHidlTest : public ContexthubHidlTestBase,
    131                            public ::testing::WithParamInterface<uint32_t> {
    132  public:
    133   uint32_t getHubId() {
    134     return GetParam();
    135   }
    136 
    137   Result registerCallback(sp<IContexthubCallback> cb) {
    138     Result result = hubApi->registerCallback(getHubId(), cb);
    139     ALOGD("Registered callback, result %" PRIu32, result);
    140     return result;
    141   }
    142 };
    143 
    144 // Base callback implementation that just logs all callbacks by default
    145 class ContexthubCallbackBase : public IContexthubCallback {
    146  public:
    147   virtual Return<void> handleClientMsg(const ContextHubMsg& /*msg*/) override {
    148     ALOGD("Got client message callback");
    149     return Void();
    150   }
    151 
    152   virtual Return<void> handleTxnResult(
    153       uint32_t txnId, TransactionResult result) override {
    154     ALOGD("Got transaction result callback for txnId %" PRIu32 " with result %"
    155           PRId32, txnId, result);
    156     return Void();
    157   }
    158 
    159   virtual Return<void> handleHubEvent(AsyncEventType evt) override {
    160     ALOGD("Got hub event callback for event type %" PRIu32, evt);
    161     return Void();
    162   }
    163 
    164   virtual Return<void> handleAppAbort(uint64_t appId, uint32_t abortCode)
    165       override {
    166     ALOGD("Got app abort notification for appId 0x%" PRIx64 " with abort code "
    167           "0x%" PRIx32, appId, abortCode);
    168     return Void();
    169   }
    170 
    171   virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& /*appInfo*/)
    172       override {
    173     ALOGD("Got app info callback");
    174     return Void();
    175   }
    176 };
    177 
    178 // Wait for a callback to occur (signaled by the given future) up to the
    179 // provided timeout. If the future is invalid or the callback does not come
    180 // within the given time, returns false.
    181 template<class ReturnType>
    182 bool waitForCallback(
    183     std::future<ReturnType> future,
    184     ReturnType *result,
    185     std::chrono::milliseconds timeout = std::chrono::seconds(5)) {
    186   auto expiration = std::chrono::system_clock::now() + timeout;
    187 
    188   EXPECT_NE(result, nullptr);
    189   EXPECT_TRUE(future.valid());
    190   if (result != nullptr && future.valid()) {
    191     std::future_status status = future.wait_until(expiration);
    192     EXPECT_NE(status, std::future_status::timeout)
    193         << "Timed out waiting for callback";
    194 
    195     if (status == std::future_status::ready) {
    196       *result = future.get();
    197       return true;
    198     }
    199   }
    200 
    201   return false;
    202 }
    203 
    204 // Ensures that the metadata reported in getHubs() is sane
    205 TEST_F(ContexthubHidlTestBase, TestGetHubs) {
    206   hidl_vec<ContextHub> hubs = getHubsSync(hubApi);
    207   ALOGD("System reports %zu hubs", hubs.size());
    208 
    209   for (ContextHub hub : hubs) {
    210     ALOGD("Checking hub ID %" PRIu32, hub.hubId);
    211 
    212     EXPECT_FALSE(hub.name.empty());
    213     EXPECT_FALSE(hub.vendor.empty());
    214     EXPECT_FALSE(hub.toolchain.empty());
    215     EXPECT_GT(hub.peakMips, 0);
    216     EXPECT_GE(hub.stoppedPowerDrawMw, 0);
    217     EXPECT_GE(hub.sleepPowerDrawMw, 0);
    218     EXPECT_GT(hub.peakPowerDrawMw, 0);
    219 
    220     // Minimum 128 byte MTU as required by CHRE API v1.0
    221     EXPECT_GE(hub.maxSupportedMsgLen, UINT32_C(128));
    222   }
    223 }
    224 
    225 TEST_P(ContexthubHidlTest, TestRegisterCallback) {
    226   ALOGD("TestRegisterCallback called, hubId %" PRIu32, getHubId());
    227   ASSERT_OK(registerCallback(new ContexthubCallbackBase()));
    228 }
    229 
    230 TEST_P(ContexthubHidlTest, TestRegisterNullCallback) {
    231   ALOGD("TestRegisterNullCallback called, hubId %" PRIu32, getHubId());
    232   ASSERT_OK(registerCallback(nullptr));
    233 }
    234 
    235 // Helper callback that puts the async appInfo callback data into a promise
    236 class QueryAppsCallback : public ContexthubCallbackBase {
    237  public:
    238   virtual Return<void> handleAppsInfo(const hidl_vec<HubAppInfo>& appInfo)
    239       override {
    240     ALOGD("Got app info callback with %zu apps", appInfo.size());
    241     promise.set_value(appInfo);
    242     return Void();
    243   }
    244 
    245   std::promise<hidl_vec<HubAppInfo>> promise;
    246 };
    247 
    248 // Calls queryApps() and checks the returned metadata
    249 TEST_P(ContexthubHidlTest, TestQueryApps) {
    250   ALOGD("TestQueryApps called, hubId %u", getHubId());
    251   sp<QueryAppsCallback> cb = new QueryAppsCallback();
    252   ASSERT_OK(registerCallback(cb));
    253 
    254   Result result = hubApi->queryApps(getHubId());
    255   ASSERT_OK(result);
    256 
    257   ALOGD("Waiting for app info callback");
    258   hidl_vec<HubAppInfo> appList;
    259   ASSERT_TRUE(waitForCallback(cb->promise.get_future(), &appList));
    260   for (const HubAppInfo &appInfo : appList) {
    261     EXPECT_NE(appInfo.appId, UINT64_C(0));
    262     EXPECT_NE(appInfo.appId, kNonExistentAppId);
    263   }
    264 }
    265 
    266 // Helper callback that puts the TransactionResult for the expectedTxnId into a
    267 // promise
    268 class TxnResultCallback : public ContexthubCallbackBase {
    269  public:
    270   virtual Return<void> handleTxnResult(
    271       uint32_t txnId, TransactionResult result) override {
    272     ALOGD("Got transaction result callback for txnId %" PRIu32 " (expecting %"
    273           PRIu32 ") with result %" PRId32, txnId, expectedTxnId, result);
    274     if (txnId == expectedTxnId) {
    275       promise.set_value(result);
    276     }
    277     return Void();
    278   }
    279 
    280   uint32_t expectedTxnId = 0;
    281   std::promise<TransactionResult> promise;
    282 };
    283 
    284 // Parameterized fixture that sets the callback to TxnResultCallback
    285 class ContexthubTxnTest : public ContexthubHidlTest {
    286  public:
    287   virtual void SetUp() override {
    288     ContexthubHidlTest::SetUp();
    289     ASSERT_OK(registerCallback(cb));
    290   }
    291 
    292   sp<TxnResultCallback> cb = new TxnResultCallback();
    293 };
    294 
    295 
    296 // Checks cases where the hub implementation is expected to return an error, but
    297 // that error can be returned either synchronously or in the asynchronous
    298 // transaction callback. Returns an AssertionResult that can be used in
    299 // ASSERT/EXPECT_TRUE. Allows checking the sync result against 1 additional
    300 // allowed error code apart from OK and TRANSACTION_FAILED, which are always
    301 // allowed.
    302 ::testing::AssertionResult checkFailureSyncOrAsync(
    303     Result result, Result allowedSyncResult,
    304     std::future<TransactionResult>&& future) {
    305   if (result == Result::OK) {
    306     // No error reported synchronously - this is OK, but then we should get an
    307     // async callback with a failure status
    308     TransactionResult asyncResult;
    309     if (!waitForCallback(std::forward<std::future<TransactionResult>>(future),
    310                          &asyncResult)) {
    311       return ::testing::AssertionFailure()
    312           << "Got successful sync result, then failed to receive async cb";
    313     } else if (asyncResult == TransactionResult::SUCCESS) {
    314       return ::testing::AssertionFailure()
    315           << "Got successful sync result, then unexpected successful async "
    316              "result";
    317     }
    318   } else if (result != allowedSyncResult &&
    319              result != Result::TRANSACTION_FAILED) {
    320     return ::testing::AssertionFailure() << "Got sync result "
    321         << asBaseType(result) << ", expected TRANSACTION_FAILED or "
    322         << asBaseType(allowedSyncResult);
    323   }
    324 
    325   return ::testing::AssertionSuccess();
    326 }
    327 
    328 TEST_P(ContexthubTxnTest, TestSendMessageToNonExistentNanoApp) {
    329   ContextHubMsg msg;
    330   msg.appName = kNonExistentAppId;
    331   msg.msgType = 1;
    332   msg.msg.resize(4);
    333   std::fill(msg.msg.begin(), msg.msg.end(), 0);
    334 
    335   ALOGD("Sending message to non-existent nanoapp");
    336   Result result = hubApi->sendMessageToHub(getHubId(), msg);
    337   if (result != Result::OK &&
    338       result != Result::BAD_PARAMS &&
    339       result != Result::TRANSACTION_FAILED) {
    340     FAIL() << "Got result " << asBaseType(result) << ", expected OK, BAD_PARAMS"
    341         << ", or TRANSACTION_FAILED";
    342   }
    343 }
    344 
    345 TEST_P(ContexthubTxnTest, TestLoadEmptyNanoApp) {
    346   cb->expectedTxnId = 0123;
    347   NanoAppBinary emptyApp;
    348 
    349   emptyApp.appId = kNonExistentAppId;
    350   emptyApp.appVersion = 1;
    351   emptyApp.flags = 0;
    352   emptyApp.targetChreApiMajorVersion = 1;
    353   emptyApp.targetChreApiMinorVersion = 0;
    354 
    355   ALOGD("Loading empty nanoapp");
    356   Result result = hubApi->loadNanoApp(getHubId(), emptyApp, cb->expectedTxnId);
    357   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
    358                                       cb->promise.get_future()));
    359 }
    360 
    361 TEST_P(ContexthubTxnTest, TestUnloadNonexistentNanoApp) {
    362   cb->expectedTxnId = 1234;
    363 
    364   ALOGD("Unloading nonexistent nanoapp");
    365   Result result = hubApi->unloadNanoApp(getHubId(), kNonExistentAppId,
    366                                         cb->expectedTxnId);
    367   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
    368                                       cb->promise.get_future()));
    369 }
    370 
    371 TEST_P(ContexthubTxnTest, TestEnableNonexistentNanoApp) {
    372   cb->expectedTxnId = 2345;
    373 
    374   ALOGD("Enabling nonexistent nanoapp");
    375   Result result = hubApi->enableNanoApp(getHubId(), kNonExistentAppId,
    376                                         cb->expectedTxnId);
    377   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
    378                                       cb->promise.get_future()));
    379 }
    380 
    381 TEST_P(ContexthubTxnTest, TestDisableNonexistentNanoApp) {
    382   cb->expectedTxnId = 3456;
    383 
    384   ALOGD("Disabling nonexistent nanoapp");
    385   Result result = hubApi->disableNanoApp(getHubId(), kNonExistentAppId,
    386                                          cb->expectedTxnId);
    387   EXPECT_TRUE(checkFailureSyncOrAsync(result, Result::BAD_PARAMS,
    388                                       cb->promise.get_future()));
    389 }
    390 
    391 // Parameterize all SingleContexthubTest tests against each valid hub ID
    392 INSTANTIATE_TEST_CASE_P(HubIdSpecificTests, ContexthubHidlTest,
    393                         ::testing::ValuesIn(getHubIds()));
    394 INSTANTIATE_TEST_CASE_P(HubIdSpecificTests, ContexthubTxnTest,
    395                         ::testing::ValuesIn(getHubIds()));
    396 
    397 } // anonymous namespace
    398 
    399 int main(int argc, char **argv) {
    400   ::testing::AddGlobalTestEnvironment(ContexthubHidlEnvironment::Instance());
    401   ::testing::InitGoogleTest(&argc, argv);
    402   ContexthubHidlEnvironment::Instance()->init(&argc, argv);
    403   int status = RUN_ALL_TESTS();
    404   ALOGI ("Test result = %d", status);
    405   return status;
    406 }
    407 
    408