change: update unit tests for removing v1 format

tests/data/demo_testcase_functions.yml

@@ -1,4 +1,4 @@
-- config:
+config:
     name: "create user testcases."
     variables:
         user_agent: 'iOS/10.3'
@@ -7,7 +7,8 @@
         app_version: '2.8.6'
     base_url: ${get_base_url()}
 
-- test:
+teststeps:
+-
     name: get token
     request:
         url: /api/get-token
@@ -25,7 +26,7 @@
         - {"check": "status_code", "comparator": "eq", "expect": 200}
         - {"check": "content.token", "comparator": "len_eq", "expect": 16}
 
-- test:
+-
     name: create user which does not exist
     variables:
         user_name: "user1"
@@ -44,7 +45,7 @@
         - {"check": "status_code", "comparator": "eq", "expect": 201}
         - {"check": "content.success", "comparator": "eq", "expect": true}
 
-- test:
+-
     name: create user which does not exist
     request:
         url: /api/users/1000