# File test/test_pseudo_io.rb, line 50
    def test_each_line
      @io.write("hello\n")
      @io.write("world\n")

      lines = [
        "hello\n",
        "world\n"
      ]
      @io.each_line do |line|
        assert_equal(lines.first, line)
        lines.shift
      end
      assert_nil(@io.read)
    end