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  #

  # Returns or yields Pathname objects that match the given glob

  # pattern or glob patterns, relative to +self+.

  #

  # It joins +self+ with the given glob pattern. +self+ should be a

  # directory. When +pattern+ is an absolute path, +self+ does not

  # matter.

  #

  #  Pathname('config').glob("*.rb")

  #	#=> [#<Pathname:config/environment.rb>, #<Pathname:config/routes.rb>, ..]

  #

  # Pathname('config').glob(["*.rb", "*.txt"])

  #	#=> [#<Pathname:config/environment.rb>, #<Pathname:config/routes.rb>, ..]

  #

  # See Dir.glob.

  #

  def glob(pattern, flags = 0, &b)

    Array(pattern).flat_map do |pat|

      self.class.glob(join(pat), flags, &b)

    end

  end

  def test_glob

    with_tmpchdir('rubytest-pathname') {|dir|

      open("f", "w") {|f| f.write "abc" }

      Dir.mkdir("d")

      assert_equal([Pathname("d"), Pathname("f")], Pathname('').glob("*").sort)

      a = []

      Pathname('').glob("*") {|path| a << path }

      a.sort!

      assert_equal([Pathname("d"), Pathname("f")], a)

      open("FOO.txt", "w") {|f| f.write "abc" }

      assert_equal([Pathname("FOO.txt")], Pathname('').glob("foo.*", File::FNM_CASEFOLD))

    }

    with_tmpchdir('rubytest-pathname') {|dir|

      open("a.rb", "w") {|f| f.write "abc" }

      open("a.txt", "w") {|f| f.write "abc" }

      assert_equal([Pathname("a.rb"), Pathname("a.txt")], Pathname('').glob(["*.rb", "*.txt"]))

    }

  end