From 9446db408ce9fec8116aa767ce159513558a3638 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 16 Dec 2018 12:55:59 +0000
Subject: Refine error message for time interval

* time.c (time_timespec): Time interval value can be zero, not
  only positive.  [ruby-dev:50709] [Bug #15420]

From: shuujii (Shuji KOBAYASHI) <shuujii@gmail.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66418 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_process.rb | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index 816751ec81..6f16ac3062 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -1509,6 +1509,9 @@ class TestProcess < Test::Unit::TestCase
 
   def test_sleep
     assert_raise(ArgumentError) { sleep(1, 1) }
+    [-1, -1.0, -1r].each do |sec|
+      assert_raise_with_message(ArgumentError, /not.*negative/) { sleep(sec) }
+    end
   end
 
   def test_getpgid
-- 
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