Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 29 insertions, 0 deletions

diff --git a/spec/rubyspec/core/dir/close_spec.rb b/spec/rubyspec/core/dir/close_spec.rb
new file mode 100644
index 0000000000..7b08ec5ee8
--- /dev/null
+++ b/spec/rubyspec/core/dir/close_spec.rb
@@ -0,0 +1,29 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/common', __FILE__)
+ruby_version_is ''...'2.3' do
+  require File.expand_path('../shared/closed', __FILE__)
+end
+
+describe "Dir#close" do
+  before :all do
+    DirSpecs.create_mock_dirs
+  end
+
+  after :all do
+    DirSpecs.delete_mock_dirs
+  end
+
+  ruby_version_is ''...'2.3' do
+    it_behaves_like :dir_closed, :close
+  end
+
+  ruby_version_is '2.3' do
+    it "does not raise an IOError even if the Dir instance is closed" do
+      dir = Dir.open DirSpecs.mock_dir
+      dir.close
+      lambda {
+        dir.close
+      }.should_not raise_error(IOError)
+    end
+  end
+end