describe :dir_open, shared: true do it "returns a Dir instance representing the specified directory" do dir = Dir.send(@method, DirSpecs.mock_dir) dir.should be_kind_of(Dir) dir.close end it "raises a SystemCallError if the directory does not exist" do lambda do Dir.send @method, DirSpecs.nonexistent end.should raise_error(SystemCallError) end it "may take a block which is yielded to with the Dir instance" do Dir.send(@method, DirSpecs.mock_dir) {|dir| dir.should be_kind_of(Dir)} end it "returns the value of the block if a block is given" do Dir.send(@method, DirSpecs.mock_dir) {|dir| :value }.should == :value end it "closes the Dir instance when the block exits if given a block" do closed_dir = Dir.send(@method, DirSpecs.mock_dir) { |dir| dir } lambda { closed_dir.read }.should raise_error(IOError) end it "closes the Dir instance when the block exits the block even due to an exception" do closed_dir = nil lambda do Dir.send(@method, DirSpecs.mock_dir) do |dir| closed_dir = dir raise "dir specs" end end.should raise_error(RuntimeError, "dir specs") lambda { closed_dir.read }.should raise_error(IOError) end it "calls #to_path on non-String arguments" do p = mock('path') p.should_receive(:to_path).and_return(DirSpecs.mock_dir) Dir.send(@method, p) { true } end it "accepts an options Hash" do dir = Dir.send(@method, DirSpecs.mock_dir, encoding: "utf-8") {|d| d } dir.should be_kind_of(Dir) end it "calls #to_hash to convert the options object" do options = mock("dir_open") options.should_receive(:to_hash).and_return({ encoding: Encoding::UTF_8 }) dir = Dir.send(@method, DirSpecs.mock_dir, options) {|d| d } dir.should be_kind_of(Dir) end it "ignores the :encoding option if it is nil" do dir = Dir.send(@method, DirSpecs.mock_dir, encoding: nil) {|d| d } dir.should be_kind_of(Dir) end platform_is_not :windows do it 'sets the close-on-exec flag for the directory file descriptor' do Dir.send(@method, DirSpecs.mock_dir) do |dir| io = IO.for_fd(dir.fileno) io.autoclose = false io.close_on_exec?.should == true end end end end