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File Manager

Path: /opt/chef.upgrade/embedded/lib/ruby/gems/2.3.0/gems/rake-10.4.2/test/

Viewing File: test_rake_file_utils.rb

require File.expand_path('../helper', __FILE__)
require 'fileutils'
require 'stringio'

class TestRakeFileUtils < Rake::TestCase

  def teardown
    FileUtils::LN_SUPPORTED[0] = true
    RakeFileUtils.verbose_flag = Rake::FileUtilsExt::DEFAULT

    super
  end

  def test_rm_one_file
    create_file("a")
    FileUtils.rm_rf "a"
    refute File.exist?("a")
  end

  def test_rm_two_files
    create_file("a")
    create_file("b")
    FileUtils.rm_rf ["a", "b"]
    refute File.exist?("a")
    refute File.exist?("b")
  end

  def test_rm_filelist
    list = Rake::FileList.new << "a" << "b"
    list.each { |fn| create_file(fn) }
    FileUtils.rm_r list
    refute File.exist?("a")
    refute File.exist?("b")
  end

  def test_ln
    open("a", "w") { |f| f.puts "TEST_LN" }

    Rake::FileUtilsExt.safe_ln("a", "b", :verbose => false)

    assert_equal "TEST_LN\n", File.read('b')
  end

  class BadLink
    include Rake::FileUtilsExt
    attr_reader :cp_args

    def initialize(klass)
      @failure_class = klass
    end

    def cp(*args)
      @cp_args = args
    end

    def ln(*args)
      fail @failure_class, "ln not supported"
    end

    public :safe_ln
  end

  def test_safe_ln_failover_to_cp_on_standard_error
    FileUtils::LN_SUPPORTED[0] = true
    c = BadLink.new(StandardError)
    c.safe_ln "a", "b"
    assert_equal ['a', 'b'], c.cp_args
    c.safe_ln "x", "y"
    assert_equal ['x', 'y'], c.cp_args
  end

  def test_safe_ln_failover_to_cp_on_not_implemented_error
    FileUtils::LN_SUPPORTED[0] = true
    c = BadLink.new(NotImplementedError)
    c.safe_ln "a", "b"
    assert_equal ['a', 'b'], c.cp_args
  end

  def test_safe_ln_fails_on_script_error
    FileUtils::LN_SUPPORTED[0] = true
    c = BadLink.new(ScriptError)
    assert_raises(ScriptError) do c.safe_ln "a", "b" end
  end

  def test_verbose
    verbose true
    assert_equal true, verbose
    verbose false
    assert_equal false, verbose
    verbose(true) {
      assert_equal true, verbose
    }
    assert_equal false, verbose
  end

  def test_nowrite
    nowrite true
    assert_equal true, nowrite
    nowrite false
    assert_equal false, nowrite
    nowrite(true) {
      assert_equal true, nowrite
    }
    assert_equal false, nowrite
  end

  def test_file_utils_methods_are_available_at_top_level
    create_file("a")

    capture_io do
      rm_rf "a"
    end

    refute File.exist?("a")
  end

  def test_fileutils_methods_dont_leak
    obj = Object.new
    assert_raises(NoMethodError) { obj.copy } # from FileUtils
    assert_raises(NoMethodError) { obj.ruby "-v" } # from RubyFileUtils
  end

  def test_sh
    shellcommand

    verbose(false) { sh %{#{Rake::TestCase::RUBY} shellcommand.rb} }
    assert true, "should not fail"
  end

  def test_sh_with_a_single_string_argument
    check_expansion

    ENV['RAKE_TEST_SH'] = 'someval'
    verbose(false) {
      sh %{#{RUBY} check_expansion.rb #{env_var} someval}
    }
  end

  def test_sh_with_multiple_arguments
    check_no_expansion
    ENV['RAKE_TEST_SH'] = 'someval'

    verbose(false) {
      sh RUBY, 'check_no_expansion.rb', env_var, 'someval'
    }
  end

  def test_sh_failure
    shellcommand

    assert_raises(RuntimeError) {
      verbose(false) { sh %{#{RUBY} shellcommand.rb 1} }
    }
  end

  def test_sh_special_handling
    shellcommand

    count = 0
    verbose(false) {
      sh(%{#{RUBY} shellcommand.rb}) do |ok, res|
        assert(ok)
        assert_equal 0, res.exitstatus
        count += 1
      end
      sh(%{#{RUBY} shellcommand.rb 1}) do |ok, res|
        assert(!ok)
        assert_equal 1, res.exitstatus
        count += 1
      end
    }
    assert_equal 2, count, "Block count should be 2"
  end

  def test_sh_noop
    shellcommand

    verbose(false) { sh %{shellcommand.rb 1}, :noop=>true }
    assert true, "should not fail"
  end

  def test_sh_bad_option
    shellcommand

    ex = assert_raises(ArgumentError) {
      verbose(false) { sh %{shellcommand.rb}, :bad_option=>true }
    }
    assert_match(/bad_option/, ex.message)
  end

  def test_sh_verbose
    shellcommand

    _, err = capture_io do
      verbose(true) {
        sh %{shellcommand.rb}, :noop=>true
      }
    end

    assert_equal "shellcommand.rb\n", err
  end

  def test_sh_verbose_false
    shellcommand

    _, err = capture_io do
      verbose(false) {
        sh %{shellcommand.rb}, :noop=>true
      }
    end

    assert_equal '', err
  end

  def test_sh_verbose_flag_nil
    shellcommand

    RakeFileUtils.verbose_flag = nil

    assert_silent do
      sh %{shellcommand.rb}, :noop=>true
    end
  end

  def test_ruby_with_a_single_string_argument
    check_expansion

    ENV['RAKE_TEST_SH'] = 'someval'

    verbose(false) {
      replace_ruby {
        ruby %{check_expansion.rb #{env_var} someval}
      }
    }
  end

  def test_ruby_with_multiple_arguments
    check_no_expansion

    ENV['RAKE_TEST_SH'] = 'someval'
    verbose(false) {
      replace_ruby {
        ruby 'check_no_expansion.rb', env_var, 'someval'
      }
    }
  end

  def test_split_all
    assert_equal ['a'], Rake::FileUtilsExt.split_all('a')
    assert_equal ['..'], Rake::FileUtilsExt.split_all('..')
    assert_equal ['/'], Rake::FileUtilsExt.split_all('/')
    assert_equal ['a', 'b'], Rake::FileUtilsExt.split_all('a/b')
    assert_equal ['/', 'a', 'b'], Rake::FileUtilsExt.split_all('/a/b')
    assert_equal ['..', 'a', 'b'], Rake::FileUtilsExt.split_all('../a/b')
  end

  def command(name, text)
    open name, 'w', 0750 do |io|
      io << text
    end
  end

  def check_no_expansion
    command 'check_no_expansion.rb', <<-CHECK_EXPANSION
if ARGV[0] != ARGV[1]
  exit 0
else
  exit 1
end
    CHECK_EXPANSION
  end

  def check_expansion
    command 'check_expansion.rb', <<-CHECK_EXPANSION
if ARGV[0] != ARGV[1]
  exit 1
else
  exit 0
end
    CHECK_EXPANSION
  end

  def replace_ruby
    ruby = FileUtils::RUBY
    FileUtils.send :remove_const, :RUBY
    FileUtils.const_set :RUBY, RUBY
    yield
  ensure
    FileUtils.send :remove_const, :RUBY
    FileUtils.const_set:RUBY, ruby
  end

  def shellcommand
    command 'shellcommand.rb', <<-SHELLCOMMAND
#!/usr/bin/env ruby

exit((ARGV[0] || "0").to_i)
    SHELLCOMMAND
  end

  def env_var
    windows? ? '%RAKE_TEST_SH%' : '$RAKE_TEST_SH'
  end

  def windows?
    ! File::ALT_SEPARATOR.nil?
  end

end