Fix Get File and healthMR

healthmr test case will now try to handle the first message in kafka issue
with POST, GET, POST, GET for the first messgae.
Also fixed reference to Get File as OperatingSystem.Get File to avoid conflicts with SSH Get File

Issue-ID: INT-892
Change-Id: I4924da24842c4612b8519699d9844583bb2a1207
Signed-off-by: Brian Freeman <bf1936@att.com>
diff --git a/robot/resources/mr_interface.robot b/robot/resources/mr_interface.robot
index 625198d..29e9dd3 100644
--- a/robot/resources/mr_interface.robot
+++ b/robot/resources/mr_interface.robot
@@ -23,12 +23,16 @@
 
 Run MR PubSub Health Check
      [Documentation]    Runs MR PubSub Health check
-     ${resp}=    Run MR Get Request    ${MR_SUB_HEALTH_CHECK_PATH}
+     #${resp}=    Run MR Get Request    ${MR_SUB_HEALTH_CHECK_PATH}
      # topic may not be created which is a 400 error
+
      ${resp}=    Run MR Post Request    ${MR_PUB_HEALTH_CHECK_PATH}
      Should Be Equal As Strings         ${resp.status_code}     200
      Should Contain    ${resp.json()}    serverTimeMs    Failed to Write Data
      ${resp}=    Run MR Get Request    ${MR_SUB_HEALTH_CHECK_PATH}
+     # Always Write twice to catch lost first message
+     ${resp}=    Run MR Post Request    ${MR_PUB_HEALTH_CHECK_PATH}
+     ${resp}=    Run MR Get Request    ${MR_SUB_HEALTH_CHECK_PATH}
      # ${resp} is an array
      Should Be Equal As Strings         ${resp.status_code}     200
      Should Contain    ${resp.json()[0]}    timestamp    Failed to Read Data