feat: testcase in format version 2

tests/testcases/setup.v2.yml

@@ -0,0 +1,32 @@
+config:
+    name: "setup and reset all."
+    id: setup_and_reset
+    variables:
+        user_agent: 'iOS/10.3'
+        device_sn: "TESTCASE_SETUP_XXX"
+        os_platform: 'ios'
+        app_version: '2.8.6'
+    base_url: "http://127.0.0.1:5000"
+    verify: False
+    output:
+        - session_token
+
+teststeps:
+-
+    name: get token (setup)
+    api: api/get_token.yml
+    variables:
+        user_agent: 'iOS/10.3'
+        device_sn: $device_sn
+        os_platform: 'ios'
+        app_version: '2.8.6'
+    extract:
+        - session_token: content.token
+    validate:
+        - eq: ["status_code", 200]
+        - len_eq: ["content.token", 16]
+-
+    name: reset all users
+    api: api/reset_all.yml
+    variables:
+        token: $session_token