add storage status test bash

Signed-off-by: Ngaohuatao <gaohuatao@huawei.com>

CI/test_cases/basic_cases/img_status.bash

+#!/bin/bash
+#
+# attributes: isulad inheritance version
+# concurrent: YES
+# spend time: 1
+
+#######################################################################
+##- @Copyright (C) Huawei Technologies., Ltd. 2020. All rights reserved.
+# - iSulad licensed under the Mulan PSL v2.
+# - You can use this software according to the terms and conditions of the Mulan PSL v2.
+# - You may obtain a copy of Mulan PSL v2 at:
+# -     http://license.coscl.org.cn/MulanPSL2
+# - 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 v2 for more details.
+##- @Description:CI
+##- @Author: gaohuatao
+##- @Create: 2020-05-04
+#######################################################################
+
+curr_path=$(dirname $(readlink -f "$0"))
+data_path=$(realpath $curr_path/../data)
+driver="overlay2"
+source ./helpers.bash
+
+function pre_test()
+{
+    cut_output_lines isula info
+    fn_check_eq "$?" "0" "check failed"
+    
+    for i in ${lines[@]};do
+	    echo $i | grep 'devicemapper'
+	    if [ $? -eq 0 ]; then
+		    driver="devicemapper"
+	    fi
+    done
+
+}
+
+function overlay2_status()
+{
+    if [[ "${lines[6]}" != "Storage Driver:"* ]];then
+        echo "isula info error"
+        TC_RET_T=$(($TC_RET_T+1))
+    fi
+    if [[ "${lines[7]}" != " Backing Filesystem:"* ]];then
+        echo "isula info error"
+        TC_RET_T=$(($TC_RET_T+1))
+    fi
+    if [[ "${lines[8]}" != " Supports d_type:"* ]];then
+        echo "isula info error"
+        TC_RET_T=$(($TC_RET_T+1))
+    fi
+}
+
+function devicemapper_status()
+{
+	echo "TODO"
+}
+
+function do_test_t()
+{
+    pre_test
+    if [[ "$driver"x = "overlay2"x ]];then
+	    overlay2_status
+    elif [[ "driver"x = "devicemapper"x ]];then
+	    devicemapper_status
+    else
+	    echo "error: not support $driver"
+	    TC_RET_T=$(($TC_RET_T+1))
+    fi
+
+    return $TC_RET_T
+
+}
+
+ret=0
+do_test_t
+if [ $? -ne 0 ];then
+    let "ret=$ret + 1"
+fi
+
+show_result $ret "basic storage driver status"