ldap test env: allow configuration of wait_for_ldap()

test/support/ldap_test_environment.ex

@@ -47,7 +47,12 @@ defmodule RecycledCloud.LDAPTestEnvironment do
           [:binary, args: args]
         )
 
-        case wait_for_ldap() do
+        max_loop_count = case System.get_env("LDAP_WAIT_LOOPS") do
+          nil -> 10
+          str -> str |> String.to_integer
+        end
+
+        case wait_for_ldap(1000, max_loop_count) do
           :ok ->
             # Wait for LDAP server to be populated.
             # FIXME: poll state instead of taking a nap!