From 1107083935fbdb8f8a7ece9549d8203652c4fec6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Fri, 17 Nov 2017 14:20:05 +0100
Subject: Avoid using the efile driver in test suites

The efile driver will soon be reimplemented as a BIF.

Instead of opening a port based on efile, use hd(erlang:ports()).  It
is a reasonable safe assumption that the runtime will continue to use
use at least some ports.
---
 lib/debugger/test/guard_SUITE.erl | 5 ++++-
 lib/stdlib/test/ets_SUITE.erl     | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/debugger/test/guard_SUITE.erl b/lib/debugger/test/guard_SUITE.erl
index f7874f79df..e781ea932f 100644
--- a/lib/debugger/test/guard_SUITE.erl
+++ b/lib/debugger/test/guard_SUITE.erl
@@ -390,7 +390,7 @@ all_types() ->
      {atom, xxxx},
      {ref, make_ref()},
      {pid, self()},
-     {port, open_port({spawn, efile}, [])},
+     {port, make_port()},
      {function, fun(X) -> X+1, "" end},
      {binary, list_to_binary([])}].
 
@@ -435,6 +435,9 @@ type_test(binary, X) when binary(X) ->
 type_test(function, X) when function(X) ->
     function.
 
+make_port() ->
+    hd(erlang:ports()).
+
 const_guard(Config) when is_list(Config) ->
     if
 	(0 == 0) and ((0 == 0) or (0 == 0)) ->
diff --git a/lib/stdlib/test/ets_SUITE.erl b/lib/stdlib/test/ets_SUITE.erl
index f329a07b7a..07c8b60cbd 100644
--- a/lib/stdlib/test/ets_SUITE.erl
+++ b/lib/stdlib/test/ets_SUITE.erl
@@ -6369,7 +6369,7 @@ very_big_num(0, Result) ->
     Result.
 
 make_port() ->
-    open_port({spawn, "efile"}, [eof]).
+    hd(erlang:ports()).
 
 make_pid() ->
     spawn_link(fun sleeper/0).
-- 
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