make descrambler test optional since it may be provided through tuner module since cas@1.2

bug: 176799453
Test: Manual
Change-Id: Iffbd76723c53ba0d94ccfcbd8c22beb1d8173fad

5 files changed, 256 insertions, 229 deletions

diff --git a/cas/1.0/vts/functional/Android.bp b/cas/1.0/vts/functional/Android.bp
index 82dc568fa6..a065b85906 100644
--- a/cas/1.0/vts/functional/Android.bp
+++ b/cas/1.0/vts/functional/Android.bp
@@ -20,6 +20,8 @@ cc_test {
     srcs: ["VtsHalCasV1_0TargetTest.cpp"],
     static_libs: [
         "android.hardware.cas@1.0",
+        "android.hardware.cas@1.1",
+        "android.hardware.cas@1.2",
         "android.hardware.cas.native@1.0",
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",
diff --git a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
index 7f5d98888a..df0c85934f 100644
--- a/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
+++ b/cas/1.0/vts/functional/VtsHalCasV1_0TargetTest.cpp
@@ -22,6 +22,7 @@
 #include <android/hardware/cas/1.0/IDescramblerBase.h>
 #include <android/hardware/cas/1.0/IMediaCasService.h>
 #include <android/hardware/cas/1.0/types.h>
+#include <android/hardware/cas/1.2/IMediaCasService.h>
 #include <android/hardware/cas/native/1.0/IDescrambler.h>
 #include <android/hardware/cas/native/1.0/types.h>
 #include <binder/MemoryDealer.h>
@@ -212,6 +213,10 @@ void MediaCasListener::testEventEcho(sp<ICas>& mediaCas, int32_t& event, int32_t
 class MediaCasHidlTest : public testing::TestWithParam<std::string> {
   public:
     virtual void SetUp() override {
+        if (android::hardware::cas::V1_2::IMediaCasService::getService(GetParam()) == nullptr) {
+            ALOGI("Descrambler is need to be tested before cas@1.2.");
+            mIsTestDescrambler = true;
+        }
         mService = IMediaCasService::getService(GetParam());
         ASSERT_NE(mService, nullptr);
     }
@@ -226,6 +231,7 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
     sp<ICas> mMediaCas;
     sp<IDescramblerBase> mDescramblerBase;
     sp<MediaCasListener> mCasListener;
+    bool mIsTestDescrambler = false;
     typedef struct _OobInputTestParams {
         const SubSample* subSamples;
         uint32_t numSubSamples;
@@ -270,8 +276,14 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
 
     auto descramblerStatus = mService->createDescrambler(caSystemId);
     if (!descramblerStatus.isOk()) {
-        return ::testing::AssertionFailure();
+        if (mIsTestDescrambler) {
+            return ::testing::AssertionFailure();
+        } else {
+            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+            return ::testing::AssertionSuccess();
+        }
     }
+    mIsTestDescrambler = true;
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
 }
@@ -494,14 +506,15 @@ TEST_P(MediaCasHidlTest, TestClearKeyApis) {
     returnStatus = mMediaCas->setSessionPrivateData(streamSessionId, hidlPvtData);
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
-
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
-
-    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+    if (mIsTestDescrambler) {
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+
+        returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     hidl_vec<uint8_t> hidlNullPtr;
     hidlNullPtr.setToExternal(static_cast<uint8_t*>(nullptr), 0);
@@ -543,29 +556,32 @@ TEST_P(MediaCasHidlTest, TestClearKeyApis) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
+    if (mIsTestDescrambler) {
+        EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
-    sp<IDescrambler> descrambler;
-    descrambler = IDescrambler::castFrom(mDescramblerBase);
-    ASSERT_NE(descrambler, nullptr);
+        sp<IDescrambler> descrambler;
+        descrambler = IDescrambler::castFrom(mDescramblerBase);
+        ASSERT_NE(descrambler, nullptr);
 
-    Status descrambleStatus = Status::OK;
-    sp<IMemory> dataMemory;
+        Status descrambleStatus = Status::OK;
+        sp<IMemory> dataMemory;
 
-    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
-    EXPECT_EQ(Status::OK, descrambleStatus);
+        ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+        EXPECT_EQ(Status::OK, descrambleStatus);
 
-    ASSERT_NE(nullptr, dataMemory.get());
-    uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
+        ASSERT_NE(nullptr, dataMemory.get());
+        uint8_t* opBuffer =
+                static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
 
-    int compareResult =
-        memcmp(static_cast<const void*>(opBuffer), static_cast<const void*>(kOutRefBinaryBuffer),
-               sizeof(kOutRefBinaryBuffer));
-    EXPECT_EQ(0, compareResult);
+        int compareResult =
+                memcmp(static_cast<const void*>(opBuffer),
+                       static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
+        EXPECT_EQ(0, compareResult);
 
-    returnStatus = mDescramblerBase->release();
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+        returnStatus = mDescramblerBase->release();
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     returnStatus = mMediaCas->release();
     EXPECT_TRUE(returnStatus.isOk());
@@ -590,13 +606,15 @@ TEST_P(MediaCasHidlTest, TestClearKeySessionClosedAfterRelease) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
+    if (mIsTestDescrambler) {
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
 
-    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
+        returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
+    }
 }
 
 TEST_P(MediaCasHidlTest, TestClearKeyErrors) {
@@ -654,38 +672,40 @@ TEST_P(MediaCasHidlTest, TestClearKeyErrors) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::ERROR_CAS_UNKNOWN, returnStatus);
 
-    /*
-     * Test MediaDescrambler error codes
-     */
-    // setMediaCasSession should fail with an invalid session id
-    returnStatus = mDescramblerBase->setMediaCasSession(invalidSessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
+    if (mIsTestDescrambler) {
+        /*
+         * Test MediaDescrambler error codes
+         */
+        // setMediaCasSession should fail with an invalid session id
+        returnStatus = mDescramblerBase->setMediaCasSession(invalidSessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::ERROR_CAS_SESSION_NOT_OPENED, returnStatus);
 
-    // descramble should fail without a valid session
-    sp<IDescrambler> descrambler;
-    descrambler = IDescrambler::castFrom(mDescramblerBase);
-    ASSERT_NE(descrambler, nullptr);
+        // descramble should fail without a valid session
+        sp<IDescrambler> descrambler;
+        descrambler = IDescrambler::castFrom(mDescramblerBase);
+        ASSERT_NE(descrambler, nullptr);
 
-    Status descrambleStatus = Status::OK;
-    sp<IMemory> dataMemory;
+        Status descrambleStatus = Status::OK;
+        sp<IMemory> dataMemory;
 
-    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
-    EXPECT_EQ(Status::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED, descrambleStatus);
+        ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+        EXPECT_EQ(Status::ERROR_CAS_DECRYPT_UNIT_NOT_INITIALIZED, descrambleStatus);
 
-    // Now set a valid session, should still fail because no valid ecm is processed
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+        // Now set a valid session, should still fail because no valid ecm is processed
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
 
-    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
-    EXPECT_EQ(Status::ERROR_CAS_DECRYPT, descrambleStatus);
+        ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+        EXPECT_EQ(Status::ERROR_CAS_DECRYPT, descrambleStatus);
 
-    // Verify that requiresSecureDecoderComponent handles empty mime
-    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent(""));
+        // Verify that requiresSecureDecoderComponent handles empty mime
+        EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent(""));
 
-    // Verify that requiresSecureDecoderComponent handles invalid mime
-    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("bad"));
+        // Verify that requiresSecureDecoderComponent handles invalid mime
+        EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("bad"));
+    }
 }
 
 TEST_P(MediaCasHidlTest, TestClearKeyOobFails) {
@@ -700,9 +720,11 @@ TEST_P(MediaCasHidlTest, TestClearKeyOobFails) {
     std::vector<uint8_t> sessionId;
     ASSERT_TRUE(openCasSession(&sessionId));
 
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+    if (mIsTestDescrambler) {
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     hidl_vec<uint8_t> hidlEcm;
     hidlEcm.setToExternal(const_cast<uint8_t*>(kEcmBinaryBuffer), sizeof(kEcmBinaryBuffer));
@@ -710,126 +732,104 @@ TEST_P(MediaCasHidlTest, TestClearKeyOobFails) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    sp<IDescrambler> descrambler = IDescrambler::castFrom(mDescramblerBase);
-    ASSERT_NE(nullptr, descrambler.get());
-
-    Status descrambleStatus = Status::OK;
-
-    // test invalid src buffer offset
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = kSubSamples,
-                .numSubSamples  = sizeof(kSubSamples)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0xcccccc,
-                .imemSize       = sizeof(kInBinaryBuffer),
-                .srcOffset      = 0,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test invalid src buffer size
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = kSubSamples,
-                .numSubSamples  = sizeof(kSubSamples)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0,
-                .imemSize       = 0xcccccc,
-                .srcOffset      = 0,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test invalid src buffer size
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = kSubSamples,
-                .numSubSamples  = sizeof(kSubSamples)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 1,
-                .imemSize       = (uint64_t)-1,
-                .srcOffset      = 0,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test invalid srcOffset
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = kSubSamples,
-                .numSubSamples  = sizeof(kSubSamples)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0,
-                .imemSize       = sizeof(kInBinaryBuffer),
-                .srcOffset      = 0xcccccc,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test invalid dstOffset
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = kSubSamples,
-                .numSubSamples  = sizeof(kSubSamples)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0,
-                .imemSize       = sizeof(kInBinaryBuffer),
-                .srcOffset      = 0,
-                .dstOffset      = 0xcccccc
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test detection of oob subsample sizes
-    const SubSample invalidSubSamples1[] =
-        {{162, 0}, {0, 184}, {0, 0xdddddd}};
-
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = invalidSubSamples1,
-                .numSubSamples  = sizeof(invalidSubSamples1)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0,
-                .imemSize       = sizeof(kInBinaryBuffer),
-                .srcOffset      = 0,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    // test detection of overflowing subsample sizes
-    const SubSample invalidSubSamples2[] =
-        {{162, 0}, {0, 184}, {2, (uint32_t)-1}};
-
-    ASSERT_TRUE(descrambleTestOobInput(
-            descrambler,
-            &descrambleStatus,
-            {
-                .subSamples     = invalidSubSamples2,
-                .numSubSamples  = sizeof(invalidSubSamples2)/sizeof(SubSample),
-                .imemSizeActual = sizeof(kInBinaryBuffer),
-                .imemOffset     = 0,
-                .imemSize       = sizeof(kInBinaryBuffer),
-                .srcOffset      = 0,
-                .dstOffset      = 0
-            }));
-    EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
-
-    returnStatus = mDescramblerBase->release();
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
-
+    if (mIsTestDescrambler) {
+        sp<IDescrambler> descrambler = IDescrambler::castFrom(mDescramblerBase);
+        ASSERT_NE(nullptr, descrambler.get());
+
+        Status descrambleStatus = Status::OK;
+
+        // test invalid src buffer offset
+        ASSERT_TRUE(
+                descrambleTestOobInput(descrambler, &descrambleStatus,
+                                       {.subSamples = kSubSamples,
+                                        .numSubSamples = sizeof(kSubSamples) / sizeof(SubSample),
+                                        .imemSizeActual = sizeof(kInBinaryBuffer),
+                                        .imemOffset = 0xcccccc,
+                                        .imemSize = sizeof(kInBinaryBuffer),
+                                        .srcOffset = 0,
+                                        .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test invalid src buffer size
+        ASSERT_TRUE(
+                descrambleTestOobInput(descrambler, &descrambleStatus,
+                                       {.subSamples = kSubSamples,
+                                        .numSubSamples = sizeof(kSubSamples) / sizeof(SubSample),
+                                        .imemSizeActual = sizeof(kInBinaryBuffer),
+                                        .imemOffset = 0,
+                                        .imemSize = 0xcccccc,
+                                        .srcOffset = 0,
+                                        .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test invalid src buffer size
+        ASSERT_TRUE(
+                descrambleTestOobInput(descrambler, &descrambleStatus,
+                                       {.subSamples = kSubSamples,
+                                        .numSubSamples = sizeof(kSubSamples) / sizeof(SubSample),
+                                        .imemSizeActual = sizeof(kInBinaryBuffer),
+                                        .imemOffset = 1,
+                                        .imemSize = (uint64_t)-1,
+                                        .srcOffset = 0,
+                                        .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test invalid srcOffset
+        ASSERT_TRUE(
+                descrambleTestOobInput(descrambler, &descrambleStatus,
+                                       {.subSamples = kSubSamples,
+                                        .numSubSamples = sizeof(kSubSamples) / sizeof(SubSample),
+                                        .imemSizeActual = sizeof(kInBinaryBuffer),
+                                        .imemOffset = 0,
+                                        .imemSize = sizeof(kInBinaryBuffer),
+                                        .srcOffset = 0xcccccc,
+                                        .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test invalid dstOffset
+        ASSERT_TRUE(
+                descrambleTestOobInput(descrambler, &descrambleStatus,
+                                       {.subSamples = kSubSamples,
+                                        .numSubSamples = sizeof(kSubSamples) / sizeof(SubSample),
+                                        .imemSizeActual = sizeof(kInBinaryBuffer),
+                                        .imemOffset = 0,
+                                        .imemSize = sizeof(kInBinaryBuffer),
+                                        .srcOffset = 0,
+                                        .dstOffset = 0xcccccc}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test detection of oob subsample sizes
+        const SubSample invalidSubSamples1[] = {{162, 0}, {0, 184}, {0, 0xdddddd}};
+
+        ASSERT_TRUE(descrambleTestOobInput(
+                descrambler, &descrambleStatus,
+                {.subSamples = invalidSubSamples1,
+                 .numSubSamples = sizeof(invalidSubSamples1) / sizeof(SubSample),
+                 .imemSizeActual = sizeof(kInBinaryBuffer),
+                 .imemOffset = 0,
+                 .imemSize = sizeof(kInBinaryBuffer),
+                 .srcOffset = 0,
+                 .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        // test detection of overflowing subsample sizes
+        const SubSample invalidSubSamples2[] = {{162, 0}, {0, 184}, {2, (uint32_t)-1}};
+
+        ASSERT_TRUE(descrambleTestOobInput(
+                descrambler, &descrambleStatus,
+                {.subSamples = invalidSubSamples2,
+                 .numSubSamples = sizeof(invalidSubSamples2) / sizeof(SubSample),
+                 .imemSizeActual = sizeof(kInBinaryBuffer),
+                 .imemOffset = 0,
+                 .imemSize = sizeof(kInBinaryBuffer),
+                 .srcOffset = 0,
+                 .dstOffset = 0}));
+        EXPECT_EQ(Status::BAD_VALUE, descrambleStatus);
+
+        returnStatus = mDescramblerBase->release();
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
     returnStatus = mMediaCas->release();
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
diff --git a/cas/1.1/vts/functional/Android.bp b/cas/1.1/vts/functional/Android.bp
index de223c8ce2..0647d12a1c 100644
--- a/cas/1.1/vts/functional/Android.bp
+++ b/cas/1.1/vts/functional/Android.bp
@@ -21,6 +21,7 @@ cc_test {
     static_libs: [
         "android.hardware.cas@1.0",
         "android.hardware.cas@1.1",
+        "android.hardware.cas@1.2",
         "android.hardware.cas.native@1.0",
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",
diff --git a/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
index b657f07c1a..6797506642 100644
--- a/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
+++ b/cas/1.1/vts/functional/VtsHalCasV1_1TargetTest.cpp
@@ -22,6 +22,7 @@
 #include <android/hardware/cas/1.1/ICas.h>
 #include <android/hardware/cas/1.1/ICasListener.h>
 #include <android/hardware/cas/1.1/IMediaCasService.h>
+#include <android/hardware/cas/1.2/IMediaCasService.h>
 #include <android/hardware/cas/native/1.0/IDescrambler.h>
 #include <android/hardware/cas/native/1.0/types.h>
 #include <binder/MemoryDealer.h>
@@ -255,6 +256,10 @@ void MediaCasListener::testSessionEventEcho(sp<ICas>& mediaCas, const hidl_vec<u
 class MediaCasHidlTest : public testing::TestWithParam<std::string> {
   public:
     virtual void SetUp() override {
+        if (android::hardware::cas::V1_2::IMediaCasService::getService(GetParam()) == nullptr) {
+            ALOGI("Descrambler is need to be tested before cas@1.2.");
+            mIsTestDescrambler = true;
+        }
         mService = IMediaCasService::getService(GetParam());
         ASSERT_NE(mService, nullptr);
     }
@@ -269,6 +274,7 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
     sp<ICas> mMediaCas;
     sp<IDescramblerBase> mDescramblerBase;
     sp<MediaCasListener> mCasListener;
+    bool mIsTestDescrambler = false;
     typedef struct _OobInputTestParams {
         const SubSample* subSamples;
         uint32_t numSubSamples;
@@ -311,8 +317,15 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
 
     auto descramblerStatus = mService->createDescrambler(caSystemId);
     if (!descramblerStatus.isOk()) {
-        return ::testing::AssertionFailure();
+        if (mIsTestDescrambler) {
+            return ::testing::AssertionFailure();
+        } else {
+            ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+            return ::testing::AssertionSuccess();
+        }
     }
+    mIsTestDescrambler = true;
+
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
 }
@@ -468,13 +481,15 @@ TEST_P(MediaCasHidlTest, TestClearKeyApisWithSession) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+    if (mIsTestDescrambler) {
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
 
-    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+        returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     hidl_vec<uint8_t> hidlNullPtr;
     hidlNullPtr.setToExternal(static_cast<uint8_t*>(nullptr), 0);
@@ -518,29 +533,31 @@ TEST_P(MediaCasHidlTest, TestClearKeyApisWithSession) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
+    if (mIsTestDescrambler) {
+        EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
-    sp<IDescrambler> descrambler;
-    descrambler = IDescrambler::castFrom(mDescramblerBase);
-    ASSERT_NE(descrambler, nullptr);
+        sp<IDescrambler> descrambler;
+        descrambler = IDescrambler::castFrom(mDescramblerBase);
+        ASSERT_NE(descrambler, nullptr);
 
-    Status descrambleStatus = Status::OK;
-    sp<IMemory> dataMemory;
+        Status descrambleStatus = Status::OK;
+        sp<IMemory> dataMemory;
 
-    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
-    EXPECT_EQ(Status::OK, descrambleStatus);
+        ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+        EXPECT_EQ(Status::OK, descrambleStatus);
 
-    ASSERT_NE(nullptr, dataMemory.get());
-    uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
+        ASSERT_NE(nullptr, dataMemory.get());
+        uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
 
-    int compareResult =
-            memcmp(static_cast<const void*>(opBuffer),
-                   static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
-    EXPECT_EQ(0, compareResult);
+        int compareResult =
+                memcmp(static_cast<const void*>(opBuffer),
+                       static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
+        EXPECT_EQ(0, compareResult);
 
-    returnStatus = mDescramblerBase->release();
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+        returnStatus = mDescramblerBase->release();
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     returnStatus = mMediaCas->release();
     EXPECT_TRUE(returnStatus.isOk());
diff --git a/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
index f436b8b5ee..333dea61db 100644
--- a/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
+++ b/cas/1.2/vts/functional/VtsHalCasV1_2TargetTest.cpp
@@ -311,6 +311,7 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
     sp<ICas> mMediaCas;
     sp<IDescramblerBase> mDescramblerBase;
     sp<MediaCasListener> mCasListener;
+    bool mIsTestDescrambler = false;
     typedef struct _OobInputTestParams {
         const SubSample* subSamples;
         uint32_t numSubSamples;
@@ -355,8 +356,11 @@ class MediaCasHidlTest : public testing::TestWithParam<std::string> {
 
     auto descramblerStatus = mService->createDescrambler(caSystemId);
     if (!descramblerStatus.isOk()) {
-        return ::testing::AssertionFailure();
+        ALOGI("Skip Descrambler test since it's not required in cas@1.2.");
+        return ::testing::AssertionSuccess();
     }
+    mIsTestDescrambler = true;
+
     mDescramblerBase = descramblerStatus;
     return ::testing::AssertionResult(mDescramblerBase != nullptr);
 }
@@ -512,14 +516,15 @@ TEST_P(MediaCasHidlTest, TestClearKeyApisWithSession) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
-
-    returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+    if (mIsTestDescrambler) {
+        returnStatus = mDescramblerBase->setMediaCasSession(sessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
 
+        returnStatus = mDescramblerBase->setMediaCasSession(streamSessionId);
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
     hidl_vec<uint8_t> hidlNullPtr;
     hidlNullPtr.setToExternal(static_cast<uint8_t*>(nullptr), 0);
     returnStatus = mMediaCas->refreshEntitlements(3, hidlNullPtr);
@@ -566,29 +571,31 @@ TEST_P(MediaCasHidlTest, TestClearKeyApisWithSession) {
     EXPECT_TRUE(returnStatus.isOk());
     EXPECT_EQ(Status::OK, returnStatus);
 
-    EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
+    if (mIsTestDescrambler) {
+        EXPECT_FALSE(mDescramblerBase->requiresSecureDecoderComponent("video/avc"));
 
-    sp<IDescrambler> descrambler;
-    descrambler = IDescrambler::castFrom(mDescramblerBase);
-    ASSERT_NE(descrambler, nullptr);
+        sp<IDescrambler> descrambler;
+        descrambler = IDescrambler::castFrom(mDescramblerBase);
+        ASSERT_NE(descrambler, nullptr);
 
-    Status descrambleStatus = Status::OK;
-    sp<IMemory> dataMemory;
+        Status descrambleStatus = Status::OK;
+        sp<IMemory> dataMemory;
 
-    ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
-    EXPECT_EQ(Status::OK, descrambleStatus);
+        ASSERT_TRUE(descrambleTestInputBuffer(descrambler, &descrambleStatus, &dataMemory));
+        EXPECT_EQ(Status::OK, descrambleStatus);
 
-    ASSERT_NE(nullptr, dataMemory.get());
-    uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
+        ASSERT_NE(nullptr, dataMemory.get());
+        uint8_t* opBuffer = static_cast<uint8_t*>(static_cast<void*>(dataMemory->unsecurePointer()));
 
-    int compareResult =
-            memcmp(static_cast<const void*>(opBuffer),
-                   static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
-    EXPECT_EQ(0, compareResult);
+        int compareResult =
+                memcmp(static_cast<const void*>(opBuffer),
+                       static_cast<const void*>(kOutRefBinaryBuffer), sizeof(kOutRefBinaryBuffer));
+        EXPECT_EQ(0, compareResult);
 
-    returnStatus = mDescramblerBase->release();
-    EXPECT_TRUE(returnStatus.isOk());
-    EXPECT_EQ(Status::OK, returnStatus);
+        returnStatus = mDescramblerBase->release();
+        EXPECT_TRUE(returnStatus.isOk());
+        EXPECT_EQ(Status::OK, returnStatus);
+    }
 
     returnStatus = mMediaCas->release();
     EXPECT_TRUE(returnStatus.isOk());