From b2270a36e7d42043b8640355fbd7901f852920fe Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 21 Nov 2016 02:17:29 +0000
Subject: numeric.c: refine error message

* numeric.c (rb_num_get_rounding_option): refine error message at
  invalid rounding mode.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56854 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_float.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'test/ruby/test_float.rb')

diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index f2989e4f5b..74744bfaa2 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -701,6 +701,12 @@ class TestFloat < Test::Unit::TestCase
     assert_equal(-7.1364, -7.1364499.round(4, half: :up))
   end
 
+  def test_round_half_invalid
+    assert_raise_with_message(ArgumentError, /xxx/) {
+      1.0.round(half: "\0xxx")
+    }
+  end
+
   def test_Float
     assert_in_delta(0.125, Float("0.1_2_5"), 0.00001)
     assert_in_delta(0.125, "0.1_2_5__".to_f, 0.00001)
-- 
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