1 files changed, 6 insertions, 6 deletions
diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index 6532fecea9..feda30644f 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -1255,12 +1255,12 @@ $stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status|
     _, err2, status1 = EnvUtil.invoke_ruby(['-e', "#{test_method}; begin; foo; end"], '', true, true)
     assert_equal(err2, out1)
 
-    if $stderr.tty?
-      e = RuntimeError.new("a\n")
-      message = assert_nothing_raised(ArgumentError, proc {e.pretty_inspect}) do
-        e.full_message
-      end
-      assert_operator(message, :end_with?, "\n")
+    e = RuntimeError.new("a\n")
+    message = assert_nothing_raised(ArgumentError, proc {e.pretty_inspect}) do
+      e.full_message
     end
+    assert_operator(message, :end_with?, "\n")
+    message = message.gsub(/\e\[[\d;]*m/, '')
+    assert_not_operator(message, :end_with?, "\n\n")
   end
 end