diff --git a/services/distributeddataservice/rust/test/unittest/extension_util_test.cpp b/services/distributeddataservice/rust/test/unittest/extension_util_test.cpp
index 31fb7bd9d0ebe0e8c6ad907fb8e439b2a4707926..d01643b9fbcdcd09910645c4f5e266830014bbc3 100644
--- a/services/distributeddataservice/rust/test/unittest/extension_util_test.cpp
+++ b/services/distributeddataservice/rust/test/unittest/extension_util_test.cpp
@@ -129,4 +129,68 @@ HWTEST_F(ExtensionUtilTest, Convert004, TestSize.Level1)
     EXPECT_EQ(asset, nullptr);
     EXPECT_EQ(assetLen, 0);
 }
+
+/**
+* @tc.name: ConvertVBuckets001
+* @tc.desc: Test that convert DBVBuckets to empty.
+* @tc.type: FUNC
+*/
+HWTEST_F(ExtensionUtilTest, ConvertVBuckets001, TestSize.Level1)
+{
+    DBVBuckets buckets;
+    auto [result, size] = ExtensionUtil::Convert(std::move(buckets));
+    EXPECT_NE(result, nullptr);
+    EXPECT_EQ(size, 0);
+}
+
+/**
+* @tc.name: ConvertVBuckets002
+* @tc.desc: Test that convert function DBVBucket is DBAsset type.
+* @tc.type: FUNC
+*/
+HWTEST_F(ExtensionUtilTest, ConvertVBuckets002, TestSize.Level1)
+{
+    DBVBuckets buckets;
+    DBVBucket bucket;
+    DBAsset dbAsset;
+    bucket["dbAsset"] = dbAsset;
+    buckets.push_back(bucket);
+    auto [result, size] = ExtensionUtil::Convert(std::move(buckets));
+    EXPECT_NE(result, nullptr);
+    EXPECT_GT(size, 0);
+}
+
+/**
+* @tc.name: ConvertVBuckets003
+* @tc.desc: Test that convert function DBVBucket is DBAssets type.
+* @tc.type: FUNC
+*/
+HWTEST_F(ExtensionUtilTest, ConvertVBuckets003, TestSize.Level1)
+{
+    DBVBuckets buckets;
+    DBVBucket bucket;
+    DBAssets dbAssets;
+    bucket["dbAsset"] = dbAssets;
+    buckets.push_back(bucket);
+    auto [result, size] = ExtensionUtil::Convert(std::move(buckets));
+    EXPECT_NE(result, nullptr);
+    EXPECT_GT(size, 0);
+}
+
+/**
+* @tc.name: ConvertVBuckets004
+* @tc.desc: Test that convert function DBVBucket is str type.
+* @tc.type: FUNC
+*/
+HWTEST_F(ExtensionUtilTest, ConvertVBuckets004, TestSize.Level1)
+{
+    DBVBuckets buckets;
+    DBVBucket bucket;
+    std::string key = "123";
+    bucket["dbAsset"] = key;
+    buckets.push_back(bucket);
+    auto [result, size] = ExtensionUtil::Convert(std::move(buckets));
+    EXPECT_NE(result, nullptr);
+    EXPECT_GT(size, 0);
+}
 } // namespace OHOS::Test
\ No newline at end of file
diff --git a/services/distributeddataservice/service/test/BUILD.gn b/services/distributeddataservice/service/test/BUILD.gn
index e53b4f5d1a91de54a630567e45d233269695a511..c9be10214673085545523c610e6440290e41f53f 100644
--- a/services/distributeddataservice/service/test/BUILD.gn
+++ b/services/distributeddataservice/service/test/BUILD.gn
@@ -439,7 +439,6 @@ ohos_unittest("KVDBGeneralStoreTest") {
   ]
 
   deps = [
-    "${data_service_path}/adapter/account:distributeddata_account",
     "${data_service_path}/adapter/communicator:distributeddata_communicator",
     "${data_service_path}/framework:distributeddatasvcfwk",
     "${data_service_path}/service/kvdb:distributeddata_kvdb",