From c0e3b20e99c349b1b0b0258c1101e75936ce8673 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 14 Apr 2016 12:57:07 +0000
Subject: add an assertion.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_array.rb | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index 5208a5e2d5..85724ebbe8 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -2744,6 +2744,8 @@ class TestArray < Test::Unit::TestCase
     assert_int_equal(13, [1, 2].sum(10))
     assert_int_equal(16, [1, 2].sum(10) {|v| v * 2 })
 
+    assert_raise(TypeError) { [Object.new].sum }
+
     large_number = 100000000
     small_number = 1e-9
     until (large_number + small_number) == large_number
-- 
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