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/stringio/shared/each_char.rb

@@ -0,0 +1,36 @@
+# -*- encoding: utf-8 -*-
+describe :stringio_each_char, shared: true do
+  before :each do
+    @io = StringIO.new("xyz äöü")
+  end
+
+  it "yields each character code in turn" do
+    seen = []
+    @io.send(@method) { |c| seen << c }
+    seen.should == ["x", "y", "z", " ", "ä", "ö", "ü"]
+  end
+
+  it "returns self" do
+    @io.send(@method) {}.should equal(@io)
+  end
+
+  it "returns an Enumerator when passed no block" do
+    enum = @io.send(@method)
+    enum.instance_of?(Enumerator).should be_true
+
+    seen = []
+    enum.each { |c| seen << c }
+    seen.should == ["x", "y", "z", " ", "ä", "ö", "ü"]
+  end
+end
+
+describe :stringio_each_char_not_readable, shared: true do
+  it "raises an IOError" do
+    io = StringIO.new("xyz", "w")
+    lambda { io.send(@method) { |b| b } }.should raise_error(IOError)
+
+    io = StringIO.new("xyz")
+    io.close_read
+    lambda { io.send(@method) { |b| b } }.should raise_error(IOError)
+  end
+end