Correct Robot script for ExternalAPI-NBI CSIT

Add Testcases (thanks to Gary Wu)

Change-Id: Ide10a8fabd1b8bce1584ee03ccbc29f11e949141
Issue-ID: EXTAPI-76
Signed-off-by: Eric Debeau <eric.debeau@orange.com>
Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
Signed-off-by: Quoc Nghia Nguyen <quocnghia.nguyen@orange.com>
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
diff --git a/test/csit/tests/externalapi-nbi/healthcheck/healthcheck.robot b/test/csit/tests/externalapi-nbi/healthcheck/healthcheck.robot
index eb5a5bb..21c0848 100644
--- a/test/csit/tests/externalapi-nbi/healthcheck/healthcheck.robot
+++ b/test/csit/tests/externalapi-nbi/healthcheck/healthcheck.robot
@@ -1,6 +1,7 @@
 *** Settings ***
 Documentation     The main interface for interacting with External API/NBI
 Library           RequestsLibrary
+Library           Collections
 
 *** Variables ***
 ${GLOBAL_NBI_SERVER_PROTOCOL}   http
@@ -9,6 +10,9 @@
 ${NBI_HEALTH_CHECK_PATH}        /nbi/api/v1/status
 ${NBI_ENDPOINT}                 ${GLOBAL_NBI_SERVER_PROTOCOL}://${GLOBAL_INJECTED_NBI_IP_ADDR}:${GLOBAL_NBI_SERVER_PORT}
 
+*** Test Cases ***
+NBI Health Check
+    Run NBI Health Check
 
 *** Keywords ***
 Run NBI Health Check
@@ -26,4 +30,4 @@
      ${json}=    Set Variable    ${resp.json()}
      ${status}=    Get From Dictionary    ${json}   status
      Should Be Equal  ${status}    ok
-     [Return]    ${resp}
\ No newline at end of file
+     [Return]    ${resp}