# File test/test_pseudo_io.rb, line 27
    def test_read
      assert_nil(@io.read)
      assert_nil(@io.read(256))

      @io.write('Hello world')
      assert_equal('Hello world', @io.read)

      @io.write('Hello world')
      assert_equal('Hello ', @io.read(6))
      assert_equal('world', @io.read(256))

      assert_nil(@io.read(256))
      assert_nil(@io.read)
    end