diff --git a/test/unit/lib/nvmf/direct.c/direct_ut.c b/test/unit/lib/nvmf/direct.c/direct_ut.c
index b43b85a4f..adc2d9a29 100644
--- a/test/unit/lib/nvmf/direct.c/direct_ut.c
+++ b/test/unit/lib/nvmf/direct.c/direct_ut.c
@@ -45,6 +45,11 @@ spdk_env_get_current_core(void)
 	return 0;
 }
 
+struct spdk_nvme_ctrlr {
+
+	uint32_t			num_ns;
+};
+
 void
 spdk_poller_register(struct spdk_poller **ppoller, spdk_poller_fn fn, void *arg,
 		     uint32_t lcore, uint64_t period_microseconds)
@@ -73,7 +78,7 @@ spdk_trace_record(uint16_t tpoint_id, uint16_t poller_id, uint32_t size, uint64_
 uint32_t
 spdk_nvme_ctrlr_get_num_ns(struct spdk_nvme_ctrlr *ctrlr)
 {
-	return 0;
+	return ctrlr->num_ns;
 }
 
 const struct spdk_nvme_ctrlr_data *
@@ -107,7 +112,7 @@ struct spdk_nvme_ns *spdk_nvme_ctrlr_get_ns(struct spdk_nvme_ctrlr *ctrlr, uint3
 bool
 spdk_nvme_ns_is_active(struct spdk_nvme_ns *ns)
 {
-	return false;
+	return true;
 }
 
 int
@@ -206,6 +211,64 @@ spdk_nvmf_session_async_event_request(struct spdk_nvmf_request *req)
 static void
 nvmf_test_nvmf_direct_ctrlr_admin_identify_nslist(void)
 {
+	int ret;
+	union nvmf_h2c_msg cmd;
+	struct spdk_nvme_ns_list ns_list = {};
+	struct spdk_nvme_ctrlr ctrlr = {};
+	struct spdk_nvmf_request req = {};
+
+	req.length = 1;
+	req.data = &ns_list;
+	req.cmd = &cmd;
+
+	/* set req_ns_id greater or equal to 0xfffffffeUL */
+	req.cmd->nvme_cmd.nsid = 0xfffffffeUL;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == -1);
+
+	/* set req_ns_id is smaller than 0xfffffffeUL */
+	ctrlr.num_ns = 0;
+	req.cmd->nvme_cmd.nsid = 0xfffffffdUL;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == 0);
+
+	/* set req_ns_id is 0 and num_ns is larger than ns_list Array size */
+	req.cmd->nvme_cmd.nsid = 0;
+	ctrlr.num_ns = 0xffffffffUL;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == 0);
+	CU_ASSERT(ns_list.ns_list[0] == 1);
+	CU_ASSERT(ns_list.ns_list[1023] == 1024);
+
+	/* set req_ns_id is 0 and num_ns is smaller than ns_list Array size */
+	memset(ns_list.ns_list, 0, sizeof(ns_list));
+	req.cmd->nvme_cmd.nsid = 0;
+	ctrlr.num_ns = 100;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == 0);
+	CU_ASSERT(ns_list.ns_list[0] == 1);
+	CU_ASSERT(ns_list.ns_list[99] == 100);
+
+	/* set req_ns_id is non zero value and num_ns is larger than ns_list Array size */
+	memset(ns_list.ns_list, 0, sizeof(ns_list));
+	req.cmd->nvme_cmd.nsid = 8;
+	ctrlr.num_ns = 0xffffffffUL;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == 0);
+	CU_ASSERT(ns_list.ns_list[0] == 9);
+	CU_ASSERT(ns_list.ns_list[1023] == 1032);
+
+	/* set req_ns_id is non zero value and num_ns is smaller than ns_list Array size */
+	memset(ns_list.ns_list, 0, sizeof(ns_list));
+	req.cmd->nvme_cmd.nsid = 8;
+	ctrlr.num_ns = 100;
+	ret = nvmf_direct_ctrlr_admin_identify_nslist(&ctrlr, &req);
+	CU_ASSERT(ret == 0);
+	CU_ASSERT(ns_list.ns_list[0] == 9);
+	CU_ASSERT(ns_list.ns_list[91] == 100);
+	CU_ASSERT(ns_list.ns_list[92] == 0);
+	CU_ASSERT(ns_list.ns_list[1023] == 0);
+
 }
 
 int main(int argc, char **argv)