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/stringscanner/element_reference_spec.rb

@@ -0,0 +1,61 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'strscan'
+
+describe "StringScanner#[]" do
+  before :each do
+    @s = StringScanner.new("Fri Jun 13 2008 22:43")
+  end
+
+  it "returns nil if there is no current match" do
+    @s[0].should be_nil
+  end
+
+  it "returns the n-th subgroup in the most recent match" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    @s[0].should == "Fri Jun 13 "
+    @s[1].should == "Fri"
+    @s[2].should == "Jun"
+    @s[3].should == "13"
+    @s[-3].should == "Fri"
+    @s[-2].should == "Jun"
+    @s[-1].should == "13"
+  end
+
+  it "returns nil if index is outside of self" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    @s[5].should == nil
+    @s[-5].should == nil
+  end
+
+  it "calls to_int on the given index" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    @s[0.5].should == "Fri Jun 13 "
+  end
+
+  it "raises a TypeError if the given index is nil" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    lambda { @s[nil]}.should raise_error(TypeError)
+  end
+
+  it "raises a TypeError when a Range is as argument" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    lambda { @s[0..2]}.should raise_error(TypeError)
+  end
+
+  it "raises a IndexError when there's no named capture" do
+    @s.scan(/(\w+) (\w+) (\d+) /)
+    lambda { @s["wday"]}.should raise_error(IndexError)
+    lambda { @s[:wday]}.should raise_error(IndexError)
+  end
+
+  it "returns named capture" do
+    @s.scan(/(?<wday>\w+) (?<month>\w+) (?<day>\d+) /)
+    @s["wday"].should == "Fri"
+    @s["month"].should == "Jun"
+    @s["day"].should == "13"
+    @s[:wday].should == "Fri"
+    @s[:month].should == "Jun"
+    @s[:day].should == "13"
+  end
+end
+