diff --git a/libdmabufheap/test/BUILD.gn b/libdmabufheap/test/BUILD.gn
new file mode 100755
index 0000000..36a82a4
--- /dev/null
+++ b/libdmabufheap/test/BUILD.gn
@@ -0,0 +1,29 @@
+# Copyright (C) 2022 Huawei Device Co., Ltd.
+# 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.
+
+import("//build/test.gni")
+
+module_output_path = "libdmabufheap/"
+
+ohos_unittest("DmabufAllocTest") {
+  module_out_path = module_output_path
+  sources = [ "unittest/libdmabufheap/dmabuf_alloc_test.cpp" ]
+  deps = [
+    "//utils/memory/libdmabufheap:libdmabufheap",
+  ]
+}
+
+group("unittest") {
+  testonly = true
+  deps = [ ":DmabufAllocTest" ]
+}
\ No newline at end of file
diff --git a/libdmabufheap/test/unittest/libdmabufheap/dmabuf_alloc_test.cpp b/libdmabufheap/test/unittest/libdmabufheap/dmabuf_alloc_test.cpp
new file mode 100644
index 0000000..72dcd2e
--- /dev/null
+++ b/libdmabufheap/test/unittest/libdmabufheap/dmabuf_alloc_test.cpp
@@ -0,0 +1,261 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#include "gtest/gtest.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <limits.h>
+#include "dmabuf_alloc.h"
+
+#define BUFFER_SIZE 128
+
+using namespace testing;
+using namespace testing::ext;
+
+class DmabufAllocTest : public testing::Test {
+public:
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+    void SetUp();
+    void TearDown();
+};
+
+void DmabufAllocTest::SetUpTestCase()
+{
+}
+
+void DmabufAllocTest::TearDownTestCase()
+{
+}
+
+void DmabufAllocTest::SetUp()
+{
+}
+
+void DmabufAllocTest::TearDown()
+{
+}
+
+HWTEST_F(DmabufAllocTest, AllocSingleBuffer, TestSize.Level1)
+{
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_GE(sprintf((char *)ptr, "libdmabufheap"), 0);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_STREQ("libdmabufheap", (char *)ptr);
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, ShareBufferBetweenProcess, Function|MediumTest|Level1)
+{
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_GE(sprintf((char *)ptr, "parent"), 0);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    pid_t pid = fork();
+    ASSERT_GE(pid, 0);
+    /* child process */
+    if (pid == 0) {
+        ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+        ASSERT_TRUE(ptr != NULL);
+
+        ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+        ASSERT_STREQ("parent", (char *)ptr);
+
+        ASSERT_GE(sprintf((char *)ptr, "child"), 0);
+
+        ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+        ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+        ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+        exit(EXIT_SUCCESS);
+    }
+    /* parent process */
+    waitpid(pid, NULL, 0);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_STREQ("child", (char *)ptr);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+    
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, OpenInvalidNameHeap, Function|MediumTest|Level1)
+{
+    int i;
+    std::string invalidName = "invalid";
+    int heapFd = DmabufHeapOpen(invalidName.c_str());
+    ASSERT_EQ(-EPERM, heapFd);
+
+    for (i = 0; i < 20; i++) {
+        invalidName += "invalid";
+    }
+    heapFd = DmabufHeapOpen(invalidName.c_str());
+    ASSERT_EQ(-EINVAL, heapFd);
+}
+
+HWTEST_F(DmabufAllocTest, AllocInvalidSizeBuffer, Function|MediumTest|Level1)
+{
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = 0 };
+    ASSERT_EQ(-EINVAL, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, BufferSyncWithWrongFd, Function|MediumTest|Level1)
+{
+    const unsigned int WRONG_FD = UINT_MAX;
+
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_NE(0, DmabufHeapBufferSyncStart(WRONG_FD, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_NE(0, DmabufHeapBufferSyncEnd(WRONG_FD, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, BufferSyncWithWrongSyncType, Function|MediumTest|Level1)
+{
+    const unsigned int WRONG_SYNC_TYPE = UINT_MAX;
+
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_NE(0, DmabufHeapBufferSyncEnd(buffer.fd, (DmabufHeapBufferSyncType)WRONG_SYNC_TYPE));
+
+    ASSERT_NE(0, DmabufHeapBufferSyncStart(buffer.fd, (DmabufHeapBufferSyncType)WRONG_SYNC_TYPE));
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, SyncBufferTwice, Function|MediumTest|Level1)
+{
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_GE(sprintf((char *)ptr, "libdmabufheap"), 0);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_STREQ("libdmabufheap", (char *)ptr);
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
+
+HWTEST_F(DmabufAllocTest, ExchangeBufferSyncOrder, Function|MediumTest|Level1)
+{
+    int heapFd = DmabufHeapOpen("system");
+    ASSERT_GE(heapFd, 0);
+
+    DmabufHeapBuffer buffer = { .size = BUFFER_SIZE };
+    ASSERT_EQ(0, DmabufHeapBufferAlloc(heapFd, &buffer));
+
+    void *ptr = mmap(NULL, BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, buffer.fd, 0);
+    ASSERT_TRUE(ptr != NULL);
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncEnd(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, DmabufHeapBufferSyncStart(buffer.fd, DMA_BUF_HEAP_BUF_SYNC_RW));
+
+    ASSERT_EQ(0, munmap(ptr, BUFFER_SIZE));
+
+    ASSERT_EQ(0, DmabufHeapBufferFree(&buffer));
+
+    ASSERT_EQ(0, DmabufHeapClose(heapFd));
+}
\ No newline at end of file
diff --git a/ohos.build b/ohos.build
index ba0890c..f76d22f 100644
--- a/ohos.build
+++ b/ohos.build
@@ -6,7 +6,9 @@
                 "//utils/memory/libdmabufheap:libdmabufheap"
             ],
             "inner_kits": [],
-            "test_list": []
+            "test_list": [
+                "//utils/memory/libdmabufheap/test:unittest"
+            ]
         }
     }
 }
\ No newline at end of file