LCM scale high level keywords no variables

SOL003/VNFLifecycleManagement-API_egm/ScaleVNFTaskHighLevel.robot

@@ -10,6 +10,9 @@ ${GRANT_POLLING_TOT}    2
 ${GRANT_POLLING_INTERVAL}    5s
 ${SCALE_POLLING_TOT}    10
 ${SCALE_POLLING_INTERVAL}    15s
+${headers} 
+${vnfLcmOpOccId}
+${status}   
 
 *** Test Cases ***
 Scale Out a vnfInstance
@@ -22,16 +25,23 @@ Scale Out a vnfInstance
     ...    Applicability: Scale operation is supported for the VNF (as capability in the VNFD)
     ...    NFVO is not subscribed for
     ...    Post-Conditions: VNF instance still in INSTANTIATED state and VNF was scaled
-    ${headers}=    Send VNFScaleOut request
-    Check Response Status    202    ${headers}
-    ${vnfLcmOpOccId}=    Get VnfLcmOpOccId    ${headers}
-    Check Operation Status Transition    ${vnfLcmOpOccId}    STARTING    PROCESSING    ${GRANT_POLLING_TOT}    ${GRANT_POLLING_INTERVAL}
-    Check Operation Status Transition    ${vnfLcmOpOccId}    PROCESSING    COMPLETED    ${SCALE_POLLING_TOT}    ${SCALE_POLLING_INTERVAL}
+    [Setup]     Check resource existance
+    Send VNFScaleOut request
+    Check Response Status    202    ${status}
+    Get VnfLcmOpOccId
+    Check Operation Status Transition from starting to processing
+    Check Operation Status Transition from processing to completed
 
 *** Keywords ***
+Check resource existance
+    Set Headers    {"Accept":"${ACCEPT}"}  
+    Set Headers    {"Content-Type": "${CONTENT_TYPE}"}
+    Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"Authorization":"${AUTHORIZATION}"}
+    Get    ${apiRoot}/${apiName}/${apiVersion}/vnf_instances/${vnfInstanceId} 
+    Integer    response status    200
+
 Check Response Status
-    [Arguments]    ${expected_status}    ${headers}
-    ${status}=    Get Value From Json    ${headers}    $..status
+    [Arguments]    ${expected_status}    ${status}
     Should Be Equal    ${expected_status}    ${status}
 
 Send VNFscaleOut Request
@@ -42,21 +52,25 @@ Send VNFscaleOut Request
     ${body}=    Get File    json/scaleVnfOutRequest.json
     Post    ${apiRoot}/${apiName}/${apiVersion}/vnf_instances/${vnfInstanceId}/scale    ${body}
     ${headers}=    Output    response headers
-    ${json}=    evaluate    json.loads('''${headers}''')    json
-    [Return]    ${json}
+    ${headers}=    evaluate    json.loads('''${headers}''')    json
+    ${status}=    Output    response status
 
 Get VnfLcmOpOccId
-    [Arguments]    ${headers}
     ${vnfLcmOpOccId}=    Get Value From Json    ${headers}    $..Location
     Should Not Be Empty    ${vnfLcmOpOccId}
-    [Return]    ${vnfLcmOpOccId}
+
+Check Operation Status Transition from starting to processing
+    Check Operation Status Transition    ${vnfLcmOpOccId}    STARTING    PROCESSING    ${GRANT_POLLING_TOT}    ${GRANT_POLLING_INTERVAL}
+
+Check Operation Status Transition from processing to completed
+    Check Operation Status Transition    ${vnfLcmOpOccId}    PROCESSING    COMPLETED    ${SCALE_POLLING_TOT}    ${SCALE_POLLING_INTERVAL}
     
 Check Operation Status Transition
     [Arguments]    ${vnfLcmOpOccId}    ${initial_status}    ${final_status}    ${POLLING_TOT}    ${POLLING_INTERVAL}
-    ${INDEX}=    1
-    : FOR    ${INDEX}    IN RANGE    1    ${POLLING_TOT}
+    :FOR    ${INDEX}    IN RANGE    1    ${POLLING_TOT}
     \    GET    ${apiRoot}/${apiName}/${apiVersion}/${vnfLcmOpOccId}
-    \    Check Response Status    200    response code
+    \    ${status}=    Output    response status
+    \    Check Response Status    200    ${status}
     \    ${body}=    Output    response body
     \    ${json}=    evaluate    json.loads('''${body}''')    json
     \    ${operationState}=    Get Value From Json    ${json}    $..operationState