diff --git a/graphics/Android.bp b/graphics/Android.bp
index 796ef41..6d55dd1 100644
--- a/graphics/Android.bp
+++ b/graphics/Android.bp
@@ -8,4 +8,5 @@
     "composer/2.1/default",
     "mapper/2.0",
     "mapper/2.0/default",
+    "mapper/2.0/vts/functional",
 ]
diff --git a/graphics/mapper/2.0/vts/functional/Android.bp b/graphics/mapper/2.0/vts/functional/Android.bp
new file mode 100644
index 0000000..e324322
--- /dev/null
+++ b/graphics/mapper/2.0/vts/functional/Android.bp
@@ -0,0 +1,39 @@
+//
+// Copyright (C) 2016 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.
+//
+
+cc_test {
+    name: "graphics_mapper_hidl_hal_test",
+    gtest: true,
+    srcs: ["graphics_mapper_hidl_hal_test.cpp"],
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libcutils",
+        "libhidlbase",
+        "libhidltransport",
+        "libhwbinder",
+        "libnativehelper",
+        "libsync",
+        "libutils",
+        "android.hardware.graphics.allocator@2.0",
+        "android.hardware.graphics.mapper@2.0",
+    ],
+    static_libs: ["libgtest"],
+    cflags: [
+        "-O0",
+        "-g",
+    ],
+}
diff --git a/graphics/mapper/2.0/vts/functional/graphics_mapper_hidl_hal_test.cpp b/graphics/mapper/2.0/vts/functional/graphics_mapper_hidl_hal_test.cpp
new file mode 100644
index 0000000..840da1a
--- /dev/null
+++ b/graphics/mapper/2.0/vts/functional/graphics_mapper_hidl_hal_test.cpp
@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2016 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 "graphics_mapper_hidl_hal_test"
+
+#include <android-base/logging.h>
+#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
+#include <android/hardware/graphics/mapper/2.0/IMapper.h>
+#include <gtest/gtest.h>
+#include <sync/sync.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace mapper {
+namespace V2_0 {
+namespace tests {
+namespace {
+
+using namespace android::hardware::graphics::allocator::V2_0;
+using namespace android::hardware::graphics::common::V1_0;
+
+class GraphicsMapperHidlTest : public ::testing::Test {
+ protected:
+  void SetUp() override {
+    mAllocator = IAllocator::getService("gralloc");
+    ASSERT_NE(mAllocator, nullptr);
+
+    mAllocator->createClient([this](const auto& error, const auto& client) {
+      if (error == Error::NONE) {
+        mAllocatorClient = client;
+      }
+    });
+    ASSERT_NE(mAllocatorClient, nullptr);
+
+    mMapper = IMapper::getService("gralloc-mapper");
+    ASSERT_NE(nullptr, mMapper.get());
+    ASSERT_FALSE(mMapper->isRemote());
+
+    mDummyDescriptorInfo.width = 64;
+    mDummyDescriptorInfo.height = 64;
+    mDummyDescriptorInfo.layerCount = 1;
+    mDummyDescriptorInfo.format = PixelFormat::RGBA_8888;
+    mDummyDescriptorInfo.producerUsageMask =
+        static_cast<uint64_t>(ProducerUsage::CPU_WRITE);
+    mDummyDescriptorInfo.consumerUsageMask =
+        static_cast<uint64_t>(ConsumerUsage::CPU_READ);
+  }
+
+  void TearDown() override {}
+
+  const native_handle_t* allocate(
+      const IAllocatorClient::BufferDescriptorInfo& info) {
+    // create descriptor
+    Error err = Error::NO_RESOURCES;
+    BufferDescriptor descriptor;
+    mAllocatorClient->createDescriptor(
+        info, [&](const auto& tmpError, const auto& tmpDescriptor) {
+          err = tmpError;
+          descriptor = tmpDescriptor;
+        });
+    if (err != Error::NONE) {
+      return nullptr;
+    }
+
+    // allocate buffer
+    hidl_vec<BufferDescriptor> descriptors;
+    hidl_vec<Buffer> buffers;
+    descriptors.setToExternal(&descriptor, 1);
+    err = Error::NO_RESOURCES;
+    mAllocatorClient->allocate(
+        descriptors, [&](const auto& tmpError, const auto& tmpBuffers) {
+          err = tmpError;
+          buffers = tmpBuffers;
+        });
+    if ((err != Error::NONE && err != Error::NOT_SHARED) ||
+        buffers.size() != 1) {
+      mAllocatorClient->destroyDescriptor(descriptors[0]);
+      return nullptr;
+    }
+
+    // export handle
+    err = Error::NO_RESOURCES;
+    const native_handle_t* handle = nullptr;
+    mAllocatorClient->exportHandle(
+        descriptors[0], buffers[0],
+        [&](const auto& tmpError, const auto& tmpHandle) {
+          err = tmpError;
+          if (err != Error::NONE) {
+            return;
+          }
+
+          handle = native_handle_clone(tmpHandle);
+          if (!handle) {
+            err = Error::NO_RESOURCES;
+            return;
+          }
+
+          err = mMapper->retain(handle);
+          if (err != Error::NONE) {
+            native_handle_close(handle);
+            native_handle_delete(const_cast<native_handle_t*>(handle));
+            handle = nullptr;
+          }
+        });
+
+    mAllocatorClient->destroyDescriptor(descriptors[0]);
+    mAllocatorClient->free(buffers[0]);
+
+    if (err != Error::NONE) {
+      return nullptr;
+    }
+
+    return handle;
+  }
+
+  sp<IMapper> mMapper;
+
+  IAllocatorClient::BufferDescriptorInfo mDummyDescriptorInfo{};
+
+ private:
+  sp<IAllocator> mAllocator;
+  sp<IAllocatorClient> mAllocatorClient;
+};
+
+/**
+ * Test IMapper::retain and IMapper::release.
+ */
+TEST_F(GraphicsMapperHidlTest, RetainRelease) {
+  const native_handle_t* buffer = allocate(mDummyDescriptorInfo);
+  ASSERT_NE(buffer, nullptr);
+
+  const int maxRefs = 10;
+  for (int i = 0; i < maxRefs; i++) {
+    auto err = mMapper->retain(buffer);
+    EXPECT_EQ(Error::NONE, err);
+  }
+  for (int i = 0; i < maxRefs; i++) {
+    auto err = mMapper->release(buffer);
+    EXPECT_EQ(Error::NONE, err);
+  }
+
+  auto err = mMapper->release(buffer);
+  EXPECT_EQ(Error::NONE, err);
+}
+
+/**
+ * Test IMapper::get* getters.
+ */
+TEST_F(GraphicsMapperHidlTest, Getters) {
+  const native_handle_t* buffer = allocate(mDummyDescriptorInfo);
+  ASSERT_NE(buffer, nullptr);
+
+  Error err = Error::NO_RESOURCES;
+  IAllocatorClient::BufferDescriptorInfo info{};
+  mMapper->getDimensions(buffer, [&](const auto& tmpError, const auto& tmpWidth,
+                                     const auto& tmpHeight) {
+    err = tmpError;
+    info.width = tmpWidth;
+    info.height = tmpHeight;
+  });
+  EXPECT_EQ(Error::NONE, err);
+  mMapper->getFormat(buffer, [&](const auto& tmpError, const auto& tmpFormat) {
+    err = tmpError;
+    info.format = tmpFormat;
+  });
+  EXPECT_EQ(Error::NONE, err);
+  mMapper->getProducerUsageMask(
+      buffer, [&](const auto& tmpError, const auto& tmpUsage) {
+        err = tmpError;
+        info.producerUsageMask = tmpUsage;
+      });
+  EXPECT_EQ(Error::NONE, err);
+  mMapper->getConsumerUsageMask(
+      buffer, [&](const auto& tmpError, const auto& tmpUsage) {
+        err = tmpError;
+        info.consumerUsageMask = tmpUsage;
+      });
+  EXPECT_EQ(Error::NONE, err);
+
+  EXPECT_EQ(mDummyDescriptorInfo.width, info.width);
+  EXPECT_EQ(mDummyDescriptorInfo.height, info.height);
+  EXPECT_EQ(mDummyDescriptorInfo.format, info.format);
+  EXPECT_EQ(mDummyDescriptorInfo.producerUsageMask, info.producerUsageMask);
+  EXPECT_EQ(mDummyDescriptorInfo.consumerUsageMask, info.consumerUsageMask);
+
+  BackingStore store = 0;
+  mMapper->getBackingStore(buffer,
+                           [&](const auto& tmpError, const auto& tmpStore) {
+                             err = tmpError;
+                             store = tmpStore;
+                           });
+  EXPECT_EQ(Error::NONE, err);
+
+  uint32_t stride = 0;
+  mMapper->getStride(buffer, [&](const auto& tmpError, const auto& tmpStride) {
+    err = tmpError;
+    stride = tmpStride;
+  });
+  EXPECT_EQ(Error::NONE, err);
+  EXPECT_LE(info.width, stride);
+
+  err = mMapper->release(buffer);
+  EXPECT_EQ(Error::NONE, err);
+}
+
+/**
+ * Test IMapper::lock and IMapper::unlock.
+ */
+TEST_F(GraphicsMapperHidlTest, LockBasic) {
+  const auto& info = mDummyDescriptorInfo;
+  const native_handle_t* buffer = allocate(info);
+  ASSERT_NE(buffer, nullptr);
+
+  Error err = Error::NO_RESOURCES;
+  uint32_t stride = 0;
+  mMapper->getStride(buffer, [&](const auto& tmpError, const auto& tmpStride) {
+    err = tmpError;
+    stride = tmpStride;
+  });
+  EXPECT_EQ(Error::NONE, err);
+
+  // lock buffer for writing
+  const IMapper::Rect region{0, 0, static_cast<int32_t>(info.width),
+                             static_cast<int32_t>(info.height)};
+  hidl_handle acquireFence(nullptr);
+  uint32_t* data;
+  err = Error::NO_RESOURCES;
+  mMapper->lock(buffer, info.producerUsageMask, 0, region, acquireFence,
+          [&](const auto& tmpError, const auto& tmpData) {
+            err = tmpError;
+            data = static_cast<uint32_t*>(tmpData);
+          });
+
+  if (err == Error::NONE) {
+    for (uint32_t y = 0; y < info.height; y++) {
+      for (uint32_t x = 0; x < info.width; x++) {
+        data[stride * y + x] = info.height * y + x;
+      }
+    }
+  } else {
+    EXPECT_EQ(Error::NONE, err);
+  }
+
+  err = Error::NO_RESOURCES;
+  mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+            err = tmpError;
+            auto handle = tmpReleaseFence.getNativeHandle();
+            if (handle && handle->numFds == 1) {
+                sync_wait(handle->data[0], -1);
+                close(handle->data[0]);
+            }
+          });
+  EXPECT_EQ(Error::NONE, err);
+
+  // lock buffer for reading
+  mMapper->lock(buffer, 0, info.consumerUsageMask, region, acquireFence,
+          [&](const auto& tmpError, const auto& tmpData) {
+            err = tmpError;
+            data = static_cast<uint32_t*>(tmpData);
+          });
+  if (err == Error::NONE) {
+    for (uint32_t y = 0; y < info.height; y++) {
+      for (uint32_t x = 0; x < info.width; x++) {
+        EXPECT_EQ(info.height * y + x, data[stride * y + x]);
+      }
+    }
+  } else {
+    EXPECT_EQ(Error::NONE, err);
+  }
+
+  err = Error::NO_RESOURCES;
+  mMapper->unlock(buffer, [&](const auto& tmpError, const auto& tmpReleaseFence) {
+            err = tmpError;
+            auto handle = tmpReleaseFence.getNativeHandle();
+            if (handle && handle->numFds == 1) {
+                sync_wait(handle->data[0], -1);
+                close(handle->data[0]);
+            }
+          });
+  EXPECT_EQ(Error::NONE, err);
+
+  err = mMapper->release(buffer);
+  EXPECT_EQ(Error::NONE, err);
+}
+
+}  // namespace anonymous
+}  // namespace tests
+}  // namespace V2_0
+}  // namespace mapper
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+
+  int status = RUN_ALL_TESTS();
+  LOG(INFO) << "Test result = " << status;
+
+  return status;
+}