Add positive scenario test for /ready endpoint

Signed-off-by: Michal Banka <michal.banka@nokia.com>
Issue-ID: AAF-997
Change-Id: I356f8c73248921c37b5c9819761e0afc8205b636
diff --git a/tests/aaf/certservice/cert-service-test.robot b/tests/aaf/certservice/cert-service-test.robot
index ad35826..d1e81e6 100644
--- a/tests/aaf/certservice/cert-service-test.robot
+++ b/tests/aaf/certservice/cert-service-test.robot
@@ -18,6 +18,11 @@
     [Documentation]   Configuration was changed
     Send Get Request And Validate Response  /reload  200
 
+Check if application is ready
+    [Tags]      AAF-CERT-SERVICE
+    [Documentation]   Send request to /ready endpoint and expect 200
+    Send Get Request And Validate Response  /ready  200
+
 Generate Certificate In RA Mode For CA Name
     [Tags]      AAF-CERT-SERVICE
     [Documentation]  Send request to ${CERT_SERVICE_ENDPOINT}/${RA_CA_NAME} endpoint and expect 200