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/library/set/enumerable/to_set_spec.rb

@@ -0,0 +1,19 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'set'
+
+describe "Emumerable#to_set" do
+  it "returns a new Set created from self" do
+    [1, 2, 3].to_set.should == Set[1, 2, 3]
+    {a: 1, b: 2}.to_set.should == Set[[:b, 2], [:a, 1]]
+  end
+
+  it "allows passing an alternate class for Set" do
+    sorted_set = [1, 2, 3].to_set(SortedSet)
+    sorted_set.should == SortedSet[1, 2, 3]
+    sorted_set.instance_of?(SortedSet).should == true
+  end
+
+  it "passes down passed blocks" do
+    [1, 2, 3].to_set { |x| x * x }.should == Set[1, 4, 9]
+  end
+end