Test: added BE conditional for exiting backend (run your own backend)

in multiple places where it was not in place.

test/test_yang.sh

@@ -278,19 +278,17 @@ expecteof "$clixon_netconf -qf $cfg" 0 "$DEFAULTHELLO<rpc $DEFAULTNS><validate><
 new "netconf submodule discard-changes"
 expecteof "$clixon_netconf -qf $cfg" 0 "$DEFAULTHELLO<rpc $DEFAULTNS><discard-changes/></rpc>]]>]]>" "^<rpc-reply $DEFAULTNS><ok/></rpc-reply>]]>]]>$"
 
-if [ "$BE" -eq 0 ]; then
-    exit # BE
+if [ $BE -ne 0 ]; then
+    new "Kill backend"
+    # Check if premature kill
+    pid=$(pgrep -u root -f clixon_backend)
+    if [ -z "$pid" ]; then
+	err "backend already dead"
+    fi
+    # kill backend
+    stop_backend -f "$cfg"
 fi
 
-new "Kill backend"
-# Check if premature kill
-pid=$(pgrep -u root -f clixon_backend)
-if [ -z "$pid" ]; then
-    err "backend already dead"
-fi
-# kill backend
-stop_backend -f "$cfg"
-
 rm -rf "$dir"
 
 new "endtest"