Adding unit test for ephemeral feature flag

This was something that was missing in #707.
Adding a new test to make sure the ephemeral feature flag from upstream
is set up correctly by the script.

test/entrypoint/should_switch_to_ephemeral_upstream_feature/config.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+export LIGHTGREEN='\e[0;32m'
+export LIGHTRED='\e[0;31m'
+export WHITE='\e[0;97m'
+export RESET='\e[0m'
+
+log(){
+  printf "\t${WHITE}$@${RESET}\n" 2>&1
+}
+
+success(){
+  printf "\t${LIGHTGREEN}$@${RESET}\n" 2>&1
+}
+
+error(){
+  printf "\t${LIGHTRED}$@${RESET}\n" 2>&1
+}
+
+success "I'm configured normally"
+touch .runner
+echo "$*" > runner_config
+success "created a dummy config file"
+success
+# adding a counter to see how many times we've gone through a configuration step
+count=`cat counter 2>/dev/null|| echo "0"`
+count=$((count + 1))
+echo ${count} > counter
+