diff --git a/src/runtime/isula/isula_rt_ops.c b/src/runtime/isula/isula_rt_ops.c
index 73f7a6d6745d0be69e6a3d3abb7c4bd177c9efb7..ee52c39a3544f834843a14c812a0cad1899e0650 100644
--- a/src/runtime/isula/isula_rt_ops.c
+++ b/src/runtime/isula/isula_rt_ops.c
@@ -247,6 +247,10 @@ static int get_runtime_args(const char *runtime, const char ***args)
     defs_map_string_object_runtimes *runtimes = NULL;
     size_t i = 0;
 
+    if (runtime == NULL) {
+        return 0;
+    }
+
     if (isulad_server_conf_rdlock()) {
         ERROR("failed to lock server config");
         goto out;
@@ -677,14 +681,21 @@ out:
 int rt_isula_create(const char *id, const char *runtime,
                     const rt_create_params_t *params)
 {
-    oci_runtime_spec *config = params->oci_config_data;
+    oci_runtime_spec *config = NULL;
     const char *cmd = NULL;
     const char **runtime_args = NULL;
-    size_t runtime_args_len = get_runtime_args(runtime, &runtime_args);
+    size_t runtime_args_len = 0;
     int ret = 0;
     char workdir[PATH_MAX] = {0};
     shim_client_process_state p = {0};
 
+    if (id == NULL || runtime == NULL || params == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
+    config = params->oci_config_data;
+    runtime_args_len = get_runtime_args(runtime, &runtime_args);
+
     if (snprintf(workdir, sizeof(workdir), "%s/%s", params->state, id) < 0) {
         INFO("make full workdir failed");
         ret = -1;
@@ -727,6 +738,10 @@ int rt_isula_start(const char *id, const char *runtime,
     pid_t pid = 0;
     int ret = 0;
 
+    if (id == NULL || runtime == NULL || params == NULL || pid_info == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
     if (snprintf(workdir, sizeof(workdir), "%s/%s", params->state, id) < 0) {
         ERROR("%s: missing shim workdir", id);
         return -1;
@@ -772,6 +787,16 @@ int rt_isula_clean_resource(const char *id, const char *runtime,
 {
     char workdir[PATH_MAX] = {0};
 
+    if (id == NULL || runtime == NULL || params == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
+
+    if (params->statepath == NULL) {
+        ERROR("missing state path");
+        return -1;
+    }
+
     if (snprintf(workdir, sizeof(workdir), "%s/%s", params->statepath, id) < 0) {
         ERROR("failed get shim workdir");
         return -1;
@@ -796,6 +821,14 @@ int rt_isula_rm(const char *id, const char *runtime, const rt_rm_params_t *param
 {
     char libdir[PATH_MAX] = {0};
 
+    if (id == NULL || runtime == NULL || params == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
+    if (params->rootpath == NULL) {
+        ERROR("missing root path");
+        return -1;
+    }
     if (snprintf(libdir, sizeof(libdir), "%s/%s", params->rootpath, id) < 0) {
         ERROR("failed get shim workdir");
         return -1;
@@ -845,9 +878,9 @@ int rt_isula_exec(const char *id, const char *runtime,
                   const rt_exec_params_t *params, int *exit_code)
 {
     char *exec_id = NULL;
-    defs_process *process = params->spec;
+    defs_process *process = NULL;
     const char **runtime_args = NULL;
-    size_t runtime_args_len = get_runtime_args(runtime, &runtime_args);
+    size_t runtime_args_len = 0;
     char workdir[PATH_MAX] = {0};
     const char *cmd = NULL;
     int ret = 0;
@@ -855,6 +888,13 @@ int rt_isula_exec(const char *id, const char *runtime,
     int pid = 0;
     shim_client_process_state p = {0};
 
+    if (id == NULL || runtime == NULL || params == NULL || exit_code == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
+    process = params->spec;
+    runtime_args_len = get_runtime_args(runtime, &runtime_args);
+
     ret = snprintf(bundle, sizeof(bundle), "%s/%s", params->rootpath, id);
     if (ret < 0) {
         ERROR("failed join bundle path for exec");
@@ -926,6 +966,11 @@ int rt_isula_status(const char *id, const char *runtime,
     char workdir[PATH_MAX] = {0};
     int ret = 0;
 
+    if (id == NULL || runtime == NULL || params == NULL || status == NULL) {
+        ERROR("nullptr arguments not allowed");
+        return -1;
+    }
+
     ret = snprintf(workdir, sizeof(workdir), "%s/%s", params->state, id);
     if (ret < 0) {
         ERROR("failed join full workdir %s/%s", params->rootpath, id);
diff --git a/test/mocks/container_unix_mock.cc b/test/mocks/container_unix_mock.cc
index 51e6fbc3c22da96aaa1771fb71f4fb5e0779d36b..bfabfdc0c29091de36ec2f614efcbfdb013a6b7a 100644
--- a/test/mocks/container_unix_mock.cc
+++ b/test/mocks/container_unix_mock.cc
@@ -41,3 +41,8 @@ bool has_mount_for(container_t *cont, const char *mpath)
     }
     return false;
 }
+
+int container_read_proc(uint32_t pid, container_pid_t *pid_info)
+{
+    return 0;
+}
diff --git a/test/mocks/isulad_config_mock.cc b/test/mocks/isulad_config_mock.cc
index a42577a4ccd0c552ab53e959c9aef68dde917c3e..087dae34e267b009d2729b4cd84c6efbbb19029e 100644
--- a/test/mocks/isulad_config_mock.cc
+++ b/test/mocks/isulad_config_mock.cc
@@ -97,3 +97,18 @@ char *conf_get_isulad_storage_driver()
     }
     return nullptr;
 }
+
+int isulad_server_conf_rdlock()
+{
+    return 0;
+}
+
+int isulad_server_conf_unlock()
+{
+    return 0;
+}
+
+struct service_arguments *conf_get_server_conf()
+{
+    return NULL;
+}
diff --git a/test/runtime/CMakeLists.txt b/test/runtime/CMakeLists.txt
index 5b955bdaa972cda0afd21adc28fc7de0858b62f9..3d6b5df442e2f6cd16dd1fe4b643c9a857988e3c 100644
--- a/test/runtime/CMakeLists.txt
+++ b/test/runtime/CMakeLists.txt
@@ -1,3 +1,4 @@
 project(iSulad_LLT)
 
 add_subdirectory(lcr)
+add_subdirectory(isula)
diff --git a/test/runtime/isula/CMakeLists.txt b/test/runtime/isula/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b9e44e7d3bd478fa504b67acd531fe9832eba8f9
--- /dev/null
+++ b/test/runtime/isula/CMakeLists.txt
@@ -0,0 +1,67 @@
+project(iSulad_LLT)
+
+SET(EXE isula_rt_ops_llt)
+
+add_executable(${EXE}
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_regex.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_verify.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_array.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_string.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_convert.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils/utils_file.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/log.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/sha256/sha256.c
+    ${CMAKE_BINARY_DIR}/json/json_common.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/path.c
+    ${CMAKE_BINARY_DIR}/json/host_config.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/libisulad.c
+    ${CMAKE_BINARY_DIR}/json/defs.c
+    ${CMAKE_BINARY_DIR}/json/container_config_v2.c
+    ${CMAKE_BINARY_DIR}/json/container_config.c
+    ${CMAKE_BINARY_DIR}/json/oci_runtime_spec.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/services/execution/spec/sysinfo.c
+    ${CMAKE_BINARY_DIR}/json/oci_runtime_config_linux.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cmd/commander.c
+    ${CMAKE_BINARY_DIR}/json/isulad_daemon_configs.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/json/schema/src/read_file.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cmd/isulad/arguments.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/image/oci/oci_llt_common.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks/containers_store_mock.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks/namespace_mock.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks/container_unix_mock.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks/engine_mock.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks/isulad_config_mock.cc
+    ${CMAKE_BINARY_DIR}/json/imagetool_image.c
+    ${CMAKE_BINARY_DIR}/json/oci_image_spec.c
+    ${CMAKE_BINARY_DIR}/json/shim_client_process_state.c
+    ${CMAKE_BINARY_DIR}/json/oci_runtime_state.c
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/runtime/isula/isula_rt_ops.c
+    isula_rt_ops_llt.cc)
+
+target_include_directories(${EXE} PUBLIC
+    ${GTEST_INCLUDE_DIR}
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../include
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cutils
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/map
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/services/execution/manager
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/services/execution/events
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/runtime
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/runtime/isula
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/services/execution/spec
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/json
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/engines
+    ${CMAKE_BINARY_DIR}/json
+    ${CMAKE_BINARY_DIR}/conf
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/sha256
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/config
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/cmd
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/services/graphdriver
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/json/schema/src
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../src/console
+    ${CMAKE_CURRENT_SOURCE_DIR}/../../../test/mocks
+    )
+
+#set_target_properties(${EXE} PROPERTIES LINK_FLAGS)
+target_link_libraries(${EXE} ${GTEST_BOTH_LIBRARIES} ${GMOCK_LIBRARY} ${GMOCK_MAIN_LIBRARY} ${CMAKE_THREAD_LIBS_INIT} -lgrpc++ -lprotobuf -lcrypto -lyajl -lz)
diff --git a/test/runtime/isula/isula_rt_ops_llt.cc b/test/runtime/isula/isula_rt_ops_llt.cc
new file mode 100644
index 0000000000000000000000000000000000000000..728ea2bb5d2d42708f66d24319bbcc33190161e2
--- /dev/null
+++ b/test/runtime/isula/isula_rt_ops_llt.cc
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) Huawei Technologies Co., Ltd. 2020. All rights reserved.
+ * iSulad licensed under the Mulan PSL v1.
+ * You can use this software according to the terms and conditions of the Mulan PSL v1.
+ * You may obtain a copy of Mulan PSL v1 at:
+ *     http://license.coscl.org.cn/MulanPSL
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+ * PURPOSE.
+ * See the Mulan PSL v1 for more details.
+ * Description: isula runtime ops llt
+ * Author: jingrui
+ * Create: 2020-02-15
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <gtest/gtest.h>
+#include "mock.h"
+#include "isula_rt_ops.h"
+#include <gtest/gtest.h>
+#include <gmock/gmock.h>
+#include "engine_mock.h"
+#include "isulad_config_mock.h"
+#include "utils.h"
+
+using ::testing::Args;
+using ::testing::ByRef;
+using ::testing::SetArgPointee;
+using ::testing::DoAll;
+using ::testing::NiceMock;
+using ::testing::Return;
+using ::testing::NotNull;
+using ::testing::AtLeast;
+using ::testing::Invoke;
+using ::testing::_;
+
+using namespace std;
+
+class IsulaRtOpsUnitTest : public testing::Test {
+public:
+    void SetUp() override
+    {
+        MockEngine_SetMock(&m_engine);
+        ::testing::Mock::AllowLeak(&m_engine);
+
+        MockIsuladConf_SetMock(&m_isulad_conf);
+        ::testing::Mock::AllowLeak(&m_isulad_conf);
+    }
+    void TearDown() override
+    {
+        MockEngine_SetMock(nullptr);
+        MockIsuladConf_SetMock(nullptr);
+    }
+
+    NiceMock<MockEngine> m_engine;
+    NiceMock<MockIsuladConf> m_isulad_conf;
+};
+
+TEST(isula_rt_ops_llt, test_rt_isula_detect)
+{
+    // All parameter NULL
+    ASSERT_FALSE(rt_isula_detect(NULL));
+
+    ASSERT_TRUE(rt_isula_detect("kata-runtime"));
+
+    ASSERT_TRUE(rt_isula_detect("kata-me"));
+    ASSERT_TRUE(rt_isula_detect("runc"));
+
+    ASSERT_FALSE(rt_isula_detect("lcr"));
+}
+
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_create)
+{
+    ASSERT_EQ(rt_isula_create(nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_create("123", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_create("123", "kata-runtime", nullptr), -1);
+}
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_start)
+{
+    rt_start_params_t params = {};
+    ASSERT_EQ(rt_isula_start(nullptr, nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_start("123", nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_start("123", "kata-runtime", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_start("123", "kata-runtime", &params, nullptr), -1);
+}
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_clean_resource)
+{
+    rt_clean_params_t params = {};
+
+    ASSERT_EQ(rt_isula_clean_resource(nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_clean_resource("123", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_clean_resource("123", "kata-runtime", nullptr), -1);
+    ASSERT_EQ(rt_isula_clean_resource("123", "kata-runtime", &params), -1);
+    params.statepath = "/var/run/isulad/kata-runtime/123";
+    ASSERT_EQ(rt_isula_clean_resource("123", "kata-runtime", &params), 0);
+}
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_rm)
+{
+    rt_rm_params_t params = {};
+    ASSERT_EQ(rt_isula_rm(nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_rm("123", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_rm("123", "kata-runtime", nullptr), -1);
+    ASSERT_EQ(rt_isula_rm("123", "kata-runtime", &params), -1);
+    params.rootpath = "/var/lib/isulad/kata-runtime/123";
+    ASSERT_EQ(rt_isula_rm("123", "kata-runtime", &params), 0);
+}
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_exec)
+{
+    rt_exec_params_t params = {};
+    ASSERT_EQ(rt_isula_exec(nullptr, nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_exec("123", nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_exec("123", "kata-runtime", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_exec("123", "kata-runtime", &params, nullptr), -1);
+}
+
+TEST_F(IsulaRtOpsUnitTest, test_rt_isula_status)
+{
+    rt_status_params_t params = {};
+    struct engine_container_status_info status = {};
+    ASSERT_EQ(rt_isula_status(nullptr, nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_status("123", nullptr, nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_status("123", "kata-runtime", nullptr, nullptr), -1);
+    ASSERT_EQ(rt_isula_status("123", "kata-runtime", &params, nullptr), -1);
+    params.state="/var/run/isulad/kata-runtime";
+    ASSERT_EQ(rt_isula_status("123", "kata-runtime", &params, &status), -1);
+}