from io import File
from path import join, dirname

FILE_PATH = join(dirname(__file__), 'test_file.txt')

def read_file()
  f = open(FILE_PATH)

  assert(f is File)

  LINES = [
    'line1 : foo\n',
    'line2 : bar\n',
    'line3 : baz\n',
    'line4 : qux\n',
  ]

  line = ''; i = 0
  while line = f.getline()
    assert(LINES[i] == line)
    i += 1
  end

  f.close()
end

read_file()