update for '412 Precondition failed' test case

PATCH Individual VNFInstance Precondition failed

    [Documentation]    Test ID: 6.3.5.2.5

    ...    Test title: PATCH Individual VNFInstance Precondition failed

    ...    Test objective: The objective is to that the modification of individual VNFInstance fails because precondition given in an HTTP request header is not fulfilled. Typically, this is due to an ETag mismatch, indicating that the resource was modified by another entity.

    ...    Test objective: The objective is to that the modification of individual VNFInstance fails because precondition given in an HTTP request header is not fulfilled due to an ETag mismatch.

    ...    Pre-conditions:  none

    ...    Reference: Clause 5.4.3.3.4 - ETSI GS NFV-SOL 002 [2] v2.8.1

    ...    Config ID: Config_prod_VE

    ...    Applicability: none

    ...    Post-Conditions: none

    PATCH individual vnfInstance

    PATCH individual vnfInstance - ETag mismatch

    Check HTTP Response Status Code Is    412

    Check HTTP Response Body Json Schema Is    ProblemDetails

    Patch    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_instances/${vnfInstanceId}    ${body}	

    ${outputResponse}=    Output    response

	Set Global Variable    ${response}    ${outputResponse} 

PATCH individual vnfInstance - ETag mismatch

    log    Trying to modify an individual VNF instance

    Set Headers    {"Accept":"${ACCEPT}"}  

    Set Headers    {"Content-Type": "${CONTENT_TYPE_PATCH}"}

    Set Headers    {"If-Match": "${invalid_etag}"}

    Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}

    #Run Keyword If    ${check_descriptors} == 1    Add VNF Descriptor Content to VNF Instance

    ${body}=    Get File    jsons/VnfInfoModificationRequest.json

    #${body}=        Format String   ${template}     vnfdId=${descriptor_id}

    Patch    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_instances/${vnfInstanceId}    ${body}	

    ${outputResponse}=    Output    response

	Set Global Variable    ${response}    ${outputResponse} 

DELETE individual vnfInstance

    log    Trying to delete an individual VNF instance

    Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}

${fields}

${original_etag}    some_etag

${invalid_eTag}    invalid-eTag

${vnfdId}    6fc3539c-e602-4afa-8e13-962fb5a7d81f

${vnfdId_notEnabled}    vnfdId-referring-to-the-VNFPackage-which-is-not-in-ENABLED-state