enh(mode): rationalized the get of SNMP communities from IPFabric + tests (#5121)

REFS: CTOR-598

src/apps/ipfabric/mode/discovery.pm

@@ -97,8 +97,7 @@ sub manage_selection {
         pagination => {
             limit => undef,
             start => 0
-        },
-        reports => '/technology/management/snmp/communities'
+        }
     }; 
 
     my $snmp_community_api_results = $options{custom}->request_api(
@@ -110,7 +109,7 @@ sub manage_selection {
         for my $index (0 .. $#disco_data){
             next if (!defined($disco_data[$index]->{hostname}));
             if ($snmp_device->{hostname} eq $disco_data[$index]->{hostname}){
-                $disco_data[$index]->{snmp_community} = $snmp_device->{name}->{data};
+                $disco_data[$index]->{snmp_community} = $snmp_device->{name};
             }
         }
     }

tests/apps/ipfabric/discovery.robot

@@ -0,0 +1,41 @@
+*** Settings ***
+
+
+Resource            ${CURDIR}${/}..${/}..${/}resources/import.resource
+
+Suite Setup         Start Mockoon    ${MOCKOON_JSON}
+Suite Teardown      Stop Mockoon
+Test Timeout        120s
+
+
+*** Variables ***
+${MOCKOON_JSON}     ${CURDIR}${/}ipfabric.mockoon.json
+
+${CMD}              ${CENTREON_PLUGINS} --plugin=apps::ipfabric::plugin
+...                 --api-key=EEECGFCGFCGF
+...                 --mode=discovery
+...                 --http-peer-addr=127.0.0.1
+...                 --proto=http
+...                 --port=3000
+...                 --prettify
+
+*** Test Cases ***
+Discovery ${tc}
+    [Tags]    apps    api    ipfabric
+    ${command}    Catenate    ${CMD}
+    ...     --hostname=${server_name}
+    
+    ${output}    Run    ${command} | wc -l
+
+    ${output}    Strip String    ${output}
+    Should Be Equal As Strings
+    ...    ${output}
+    ...    ${expected_result}
+    ...    Wrong output result for command:\n${command}\n\nObtained:\n${output}\n\nExpected:\n${expected_result}\n
+    ...    values=False
+    ...    collapse_spaces=True
+    
+    Examples:    tc    server_name              expected_result   --
+        ...      1     cisco-live02.ipf.cx      5468
+        ...      2     demo1.eu.ipfabric.io     99
+