####################################################################
# tc_unix.rb
#
# Test case for the Sys::Filesystem.stat method and related stuff.
# This test suite should be run via the 'rake test' task.
####################################################################
require 'test/unit'
require 'sys/filesystem'
include Sys

class TC_Filesystem_Unix < Test::Unit::TestCase
   def setup
      @dir = "/"
      @stat = Filesystem.stat(@dir)
      @size = 58720256
   end

   def test_version
      assert_equal('0.1.1', Filesystem::VERSION)
   end

   def test_stat_path
      assert_respond_to(@stat, :path)
      assert_equal("/", @stat.path)
   end

   def test_stat_block_size
      assert_respond_to(@stat, :block_size)
      assert_kind_of(Fixnum, @stat.block_size)
   end

   def test_stat_fragment_size
      assert_respond_to(@stat, :fragment_size)
      assert_kind_of(Fixnum, @stat.fragment_size)
   end

   def test_stat_blocks
      assert_respond_to(@stat, :blocks)
      assert_kind_of(Fixnum, @stat.blocks)
   end

   def test_stat_blocks_free
      assert_respond_to(@stat, :blocks_free)
      assert_kind_of(Fixnum, @stat.blocks_free)
   end

   def test_stat_blocks_available
      assert_respond_to(@stat, :blocks_available)
      assert_kind_of(Fixnum, @stat.blocks_available)
   end

   def test_stat_files
      assert_respond_to(@stat, :files)
      assert_respond_to(@stat, :inodes)            # Alias
      assert_kind_of(Fixnum, @stat.files)
   end

   def test_stat_files_free
      assert_respond_to(@stat, :files_free)
      assert_respond_to(@stat, :inodes_free)       # Alias
      assert_kind_of(Fixnum, @stat.files_free)
   end

   def test_stat_files_available
      assert_respond_to(@stat, :files_available)
      assert_respond_to(@stat, :inodes_available)  # Alias
      assert_kind_of(Fixnum, @stat.files_available)
   end

   def test_stat_filesystem_id
      assert_respond_to(@stat, :filesystem_id)
      assert_kind_of(Fixnum, @stat.filesystem_id)
   end

   def test_stat_flags
      assert_respond_to(@stat, :flags)
      assert_kind_of(Fixnum, @stat.flags)
   end

   def test_stat_name_max
      assert_respond_to(@stat, :name_max)
      assert_kind_of(Fixnum, @stat.name_max)
   end

   unless RUBY_PLATFORM =~ /linux|darwin/i
      def test_stat_base_type
         assert_respond_to(@stat, :base_type)
         assert_kind_of(String, @stat.base_type)
      end
   end

   def test_stat_constants
      assert_not_nil(Filesystem::Stat::RDONLY)
      assert_not_nil(Filesystem::Stat::NOSUID)
      unless RUBY_PLATFORM =~ /linux|darwin/i
         assert_not_nil(Filesystem::Stat::NOTRUNC)
      end
   end

   def test_stat_expected_errors
      assert_raises(ArgumentError){ Filesystem.stat }
   end

   def test_fixnum_methods
      assert_respond_to(@size, :to_kb)
      assert_respond_to(@size, :to_mb)
      assert_respond_to(@size, :to_gb)

      assert_equal(57344, @size.to_kb)
      assert_equal(56, @size.to_mb)
      assert_equal(0, @size.to_gb)
   end

   def teardown
      @dir  = nil
      @stat = nil
   end
end