diff --git a/vibrator/1.0/vts/functional/VtsHalVibratorV1_0TargetTest.cpp b/vibrator/1.0/vts/functional/VtsHalVibratorV1_0TargetTest.cpp
index a0e927b..6f8aa02 100644
--- a/vibrator/1.0/vts/functional/VtsHalVibratorV1_0TargetTest.cpp
+++ b/vibrator/1.0/vts/functional/VtsHalVibratorV1_0TargetTest.cpp
@@ -24,13 +24,16 @@
 #include <VtsHalHidlTargetTestBase.h>
 #include <VtsHalHidlTargetTestEnvBase.h>
 
+using ::android::sp;
+using ::android::hardware::hidl_enum_range;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
 using ::android::hardware::vibrator::V1_0::Effect;
 using ::android::hardware::vibrator::V1_0::EffectStrength;
 using ::android::hardware::vibrator::V1_0::IVibrator;
 using ::android::hardware::vibrator::V1_0::Status;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::sp;
+
+#define EXPECT_OK(ret) EXPECT_TRUE((ret).isOk())
 
 // Test environment for Vibrator HIDL HAL.
 class VibratorHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -70,6 +73,12 @@
   }
 }
 
+static void validatePerformEffectBadInput(Status status, uint32_t lengthMs) {
+    ASSERT_EQ(Status::UNSUPPORTED_OPERATION, status);
+    ASSERT_EQ(static_cast<uint32_t>(0), lengthMs)
+            << "Effects that return UNSUPPORTED_OPERATION must have a duration of zero";
+}
+
 TEST_F(VibratorHidlTest, OnThenOffBeforeTimeout) {
   EXPECT_EQ(Status::OK, vibrator->on(2000));
   sleep(1);
@@ -81,6 +90,42 @@
   vibrator->perform(Effect::DOUBLE_CLICK, EffectStrength::LIGHT, validatePerformEffect);
 }
 
+/*
+ * Test to make sure effect values above the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest, PerformEffect_BadEffects_AboveValidRange) {
+    Effect effect = *std::prev(hidl_enum_range<Effect>().end());
+    Effect badEffect = static_cast<Effect>(static_cast<int32_t>(effect) + 1);
+    EXPECT_OK(vibrator->perform(badEffect, EffectStrength::LIGHT, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure effect values below the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest, PerformEffect_BadEffects_BelowValidRange) {
+    Effect effect = *hidl_enum_range<Effect>().begin();
+    Effect badEffect = static_cast<Effect>(static_cast<int32_t>(effect) - 1);
+    EXPECT_OK(vibrator->perform(badEffect, EffectStrength::LIGHT, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure strength values above the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest, PerformEffect_BadStrength_AboveValidRange) {
+    EffectStrength strength = *std::prev(hidl_enum_range<EffectStrength>().end());
+    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) + 1);
+    EXPECT_OK(vibrator->perform(Effect::CLICK, badStrength, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure strength values below the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest, PerformEffect_BadStrength_BelowValidRange) {
+    EffectStrength strength = *hidl_enum_range<EffectStrength>().begin();
+    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) - 1);
+    EXPECT_OK(vibrator->perform(Effect::CLICK, badStrength, validatePerformEffectBadInput));
+}
+
 TEST_F(VibratorHidlTest, ChangeVibrationalAmplitude) {
   if (vibrator->supportsAmplitudeControl()) {
     EXPECT_EQ(Status::OK, vibrator->setAmplitude(1));
diff --git a/vibrator/1.1/vts/functional/VtsHalVibratorV1_1TargetTest.cpp b/vibrator/1.1/vts/functional/VtsHalVibratorV1_1TargetTest.cpp
index 1a47fe9..3c3ebf2 100644
--- a/vibrator/1.1/vts/functional/VtsHalVibratorV1_1TargetTest.cpp
+++ b/vibrator/1.1/vts/functional/VtsHalVibratorV1_1TargetTest.cpp
@@ -23,14 +23,16 @@
 #include <android/hardware/vibrator/1.1/types.h>
 #include <unistd.h>
 
-using ::android::hardware::vibrator::V1_0::Effect;
+using ::android::sp;
+using ::android::hardware::hidl_enum_range;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
 using ::android::hardware::vibrator::V1_0::EffectStrength;
 using ::android::hardware::vibrator::V1_0::Status;
 using ::android::hardware::vibrator::V1_1::Effect_1_1;
 using ::android::hardware::vibrator::V1_1::IVibrator;
-using ::android::hardware::Return;
-using ::android::hardware::Void;
-using ::android::sp;
+
+#define EXPECT_OK(ret) EXPECT_TRUE((ret).isOk())
 
 // Test environment for Vibrator HIDL HAL.
 class VibratorHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
@@ -72,11 +74,55 @@
     }
 }
 
+static void validatePerformEffectBadInput(Status status, uint32_t lengthMs) {
+    ASSERT_EQ(Status::UNSUPPORTED_OPERATION, status);
+    ASSERT_EQ(static_cast<uint32_t>(0), lengthMs)
+            << "Effects that return UNSUPPORTED_OPERATION must have a duration of zero";
+}
+
 TEST_F(VibratorHidlTest_1_1, PerformEffect_1_1) {
     vibrator->perform_1_1(Effect_1_1::CLICK, EffectStrength::MEDIUM, validatePerformEffect);
     vibrator->perform_1_1(Effect_1_1::TICK, EffectStrength::STRONG, validatePerformEffect);
 }
 
+/*
+ * Test to make sure effect values above the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest_1_1, PerformEffect_1_1_BadEffects_AboveValidRange) {
+    Effect_1_1 effect = *std::prev(hidl_enum_range<Effect_1_1>().end());
+    Effect_1_1 badEffect = static_cast<Effect_1_1>(static_cast<int32_t>(effect) + 1);
+    EXPECT_OK(
+            vibrator->perform_1_1(badEffect, EffectStrength::LIGHT, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure effect values below the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest_1_1, PerformEffect_1_1_BadEffects_BelowValidRange) {
+    Effect_1_1 effect = *hidl_enum_range<Effect_1_1>().begin();
+    Effect_1_1 badEffect = static_cast<Effect_1_1>(static_cast<int32_t>(effect) - 1);
+    EXPECT_OK(
+            vibrator->perform_1_1(badEffect, EffectStrength::LIGHT, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure strength values above the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest_1_1, PerformEffect_1_1_BadStrength_AboveValidRange) {
+    EffectStrength strength = *std::prev(hidl_enum_range<EffectStrength>().end());
+    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) + 1);
+    EXPECT_OK(vibrator->perform_1_1(Effect_1_1::CLICK, badStrength, validatePerformEffectBadInput));
+}
+
+/*
+ * Test to make sure strength values below the valid range are rejected.
+ */
+TEST_F(VibratorHidlTest_1_1, PerformEffect_1_1_BadStrength_BelowValidRange) {
+    EffectStrength strength = *hidl_enum_range<EffectStrength>().begin();
+    EffectStrength badStrength = static_cast<EffectStrength>(static_cast<int32_t>(strength) - 1);
+    EXPECT_OK(vibrator->perform_1_1(Effect_1_1::CLICK, badStrength, validatePerformEffectBadInput));
+}
+
 int main(int argc, char** argv) {
     ::testing::AddGlobalTestEnvironment(VibratorHidlEnvironment::Instance());
     ::testing::InitGoogleTest(&argc, argv);