test_file_handler.py 文件源码

def testAddContentIfFileExists(self):
    """Tests if the editing of a file existing works."""
    content = "this is test content. "
    expected = content + content

    with tempfile.TemporaryDirectory() as tmpdir:
      source = os.path.join(tmpdir, self.file)
      with open(source, "a") as f:
        f.write(content)

      handler = file_handler.FileHandler()
      self.assertTrue(os.path.exists(source))
      handler.AddContent(source, content)
      self.assertTrue(os.path.exists(source))

      with open(source, "r") as f:
        actual = f.read()

    self.assertEqual(expected, actual)