Change http to https in robot test

Changed http to https in robot test since https is enabled for policy-api rest service by default.

Issue-ID: POLICY-1270
Change-Id: Id108c956f2265db0e90b97b7e08371ee0df483c4
Signed-off-by: Chenfei Gao <cgao@research.att.com>
diff --git a/tests/policy/api/api-test.robot b/tests/policy/api/api-test.robot
index 3753b3d..7ea2473 100644
--- a/tests/policy/api/api-test.robot
+++ b/tests/policy/api/api-test.robot
@@ -8,8 +8,8 @@
 Healthcheck
      [Documentation]    Runs Policy Api Health check
      ${auth}=    Create List    healthcheck    zb!XztG34 
-     Log    Creating session http://${POLICY_API_IP}:6969
-     ${session}=    Create Session      policy  http://${POLICY_API_IP}:6969   auth=${auth}
+     Log    Creating session https://${POLICY_API_IP}:6969
+     ${session}=    Create Session      policy  https://${POLICY_API_IP}:6969   auth=${auth}
      ${headers}=  Create Dictionary     Accept=application/json    Content-Type=application/json
      ${resp}=   Get Request     policy  /healthcheck     headers=${headers}
      Log    Received response from policy ${resp.text}
@@ -19,10 +19,10 @@
 Statistics
      [Documentation]    Runs Policy Api Statistics
      ${auth}=    Create List    healthcheck    zb!XztG34 
-     Log    Creating session http://${POLICY_API_IP}:6969
-     ${session}=    Create Session      policy  http://${POLICY_API_IP}:6969   auth=${auth}
+     Log    Creating session https://${POLICY_API_IP}:6969
+     ${session}=    Create Session      policy  https://${POLICY_API_IP}:6969   auth=${auth}
      ${headers}=  Create Dictionary     Accept=application/json    Content-Type=application/json
      ${resp}=   Get Request     policy  /statistics     headers=${headers}
      Log    Received response from policy ${resp.text}
      Should Be Equal As Strings    ${resp.status_code}     200
-     Should Be Equal As Strings    ${resp.json()['code']}  200
\ No newline at end of file
+     Should Be Equal As Strings    ${resp.json()['code']}  200