feat: add test case for loop detection in context source registrations

*** Settings ***

Documentation       Verify that the broker prevents loop when forwarding operations through Context Source Registrations

Resource            ${EXECDIR}/resources/ApiUtils/Common.resource

Resource            ${EXECDIR}/resources/ApiUtils/ContextInformationConsumption.resource

Resource            ${EXECDIR}/resources/ApiUtils/ContextInformationProvision.resource

Resource            ${EXECDIR}/resources/ApiUtils/ContextSourceDiscovery.resource

Resource            ${EXECDIR}/resources/ApiUtils/ContextSourceRegistration.resource

Resource            ${EXECDIR}/resources/AssertionUtils.resource

Resource            ${EXECDIR}/resources/JsonUtils.resource

Resource            ${EXECDIR}/resources/MockServerUtils.resource

Test Setup          Create Entity And Registration On The Context Broker And Start Context Source Mock Server

Test Teardown       Delete Registrations And Stop Context Source Mock Server

*** Variables ***

${entity_payload_filename}           vehicle-simple-attributes-second-different.jsonld

${registration_payload_file_path}    csourceRegistrations/context-source-registration-vehicle-speed-with-redirection-ops.jsonld

*** Test Cases ***

D018_01 Loop Detection In Context Source Registrations

    [Documentation]    Verify that the broker prevents loop when forwarding operations through Context Source Registrations

    [Tags]    since_v1.6.1    dist-ops    4_3_3    cf_06    proxy-exclusive    4_3_6_3    5_6_6

    ${response}=    Delete Entity    ${entity_id}    context=${ngsild_test_suite_context}

    ${response}=    Get Request Headers

    ${actual_payload}=    Get From Dictionary    ${response}    Via

    Dictionary Should Contain Key    ${actual_payload}    ${expected_payload}

    Reply By    508

*** Keywords ***

Create Entity And Registration On The Context Broker And Start Context Source Mock Server

    ${entity_id}=    Generate Random Vehicle Entity Id

    Set Suite Variable    ${entity_id}

    ${response}=    Create Entity    ${entity_payload_filename}    ${entity_id}

    Check Response Status Code    201    ${response.status_code}

    ${response}=    Get Request Headers

    ${expected_payload}=    Get From Dictionary    ${response}    Via

    Set Suite Variable    ${expected_payload}

    ${registration_id}=    Generate Random CSR Id

    Set Suite Variable    ${registration_id}

    ${registration_payload}=    Prepare Context Source Registration From File

    ...    ${registration_id}

    ...    ${registration_payload_file_path}

    ...    mode=exclusive

    ${response}=    Create Context Source Registration With Return    ${registration_payload}

    Check Response Status Code    201    ${response.status_code}

Delete Registrations And Stop Context Source Mock Server

    Delete Entity    ${entity_id}

    Delete Context Source Registration    ${registration_id}