From 1d15d5f08032acf1b7bceacbb450d617ff6e0931 Mon Sep 17 00:00:00 2001
From: eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 20 Sep 2017 20:18:52 +0000
Subject: Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 spec/ruby/core/enumerable/sum_spec.rb | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 spec/ruby/core/enumerable/sum_spec.rb

(limited to 'spec/ruby/core/enumerable/sum_spec.rb')

diff --git a/spec/ruby/core/enumerable/sum_spec.rb b/spec/ruby/core/enumerable/sum_spec.rb
new file mode 100644
index 0000000000..4881039a8d
--- /dev/null
+++ b/spec/ruby/core/enumerable/sum_spec.rb
@@ -0,0 +1,30 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+ruby_version_is '2.4' do
+  describe 'Enumerable#sum' do
+    before :each do
+      @enum = Object.new.to_enum
+      class << @enum
+        def each
+          yield 0
+          yield(-1)
+          yield 2
+          yield 2/3r
+        end
+      end
+    end
+
+    it 'returns amount of the elements with taking an argument as the initial value' do
+      @enum.sum(10).should == 35/3r
+    end
+
+    it 'gives 0 as a default argument' do
+      @enum.sum.should == 5/3r
+    end
+
+    it 'takes a block to transform the elements' do
+      @enum.sum { |element| element * 2 }.should == 10/3r
+    end
+  end
+end
-- 
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