ruby--ruby/spec/ruby/core/dir/children_spec.rb

# encoding: utf-8

require_relative '../../spec_helper'
require_relative 'fixtures/common'

ruby_version_is "2.5" do
  describe "Dir.children" do
    before :all do
      DirSpecs.create_mock_dirs
    end

    before :each do
      @internal = Encoding.default_internal
    end

    after :all do
      DirSpecs.delete_mock_dirs
    end

    after :each do
      Encoding.default_internal = @internal
    end

    it "returns an Array of filenames in an existing directory including dotfiles" do
      a = Dir.children(DirSpecs.mock_dir).sort

      a.should == DirSpecs.expected_paths - %w[. ..]

      a = Dir.children("#{DirSpecs.mock_dir}/deeply/nested").sort
      a.should == %w|.dotfile.ext directory|
    end

    it "calls #to_path on non-String arguments" do
      p = mock('path')
      p.should_receive(:to_path).and_return(DirSpecs.mock_dir)
      Dir.children(p)
    end

    it "accepts an options Hash" do
      a = Dir.children("#{DirSpecs.mock_dir}/deeply/nested", encoding: "utf-8").sort
      a.should == %w|.dotfile.ext directory|
    end

    it "returns children encoded with the filesystem encoding by default" do
      # This spec depends on the locale not being US-ASCII because if it is, the
      # children that are not ascii_only? will be ASCII-8BIT encoded.
      children = Dir.children(File.join(DirSpecs.mock_dir, 'special')).sort
      encoding = Encoding.find("filesystem")
      encoding = Encoding::ASCII_8BIT if encoding == Encoding::US_ASCII
      platform_is_not :windows do
        children.should include("こんにちは.txt".force_encoding(encoding))
      end
      children.first.encoding.should equal(Encoding.find("filesystem"))
    end

    it "returns children encoded with the specified encoding" do
      dir = File.join(DirSpecs.mock_dir, 'special')
      children = Dir.children(dir, encoding: "euc-jp").sort
      children.first.encoding.should equal(Encoding::EUC_JP)
    end

    it "returns children transcoded to the default internal encoding" do
      Encoding.default_internal = Encoding::EUC_KR
      children = Dir.children(File.join(DirSpecs.mock_dir, 'special')).sort
      children.first.encoding.should equal(Encoding::EUC_KR)
    end

    it "raises a SystemCallError if called with a nonexistent diretory" do
      lambda { Dir.children DirSpecs.nonexistent }.should raise_error(SystemCallError)
    end
  end
end