Python/file_transfer/tests/test_send_file.py
Meysam 2e790ce4ca
file-transfer: writing tests and ensuring that all is going well (#2413)
* file-transfer: writing tests and ensuring that all is going well

* def send_file(filename: str = "mytext.txt", testing: bool = False) -> None:

* send_file(filename="mytext.txt", testing=True)

* Update send_file.py

* requirements.txt: lxml

Co-authored-by: Christian Clauss <cclauss@me.com>
2020-09-11 23:13:43 +02:00

33 lines
1014 B
Python

from unittest.mock import patch, Mock
from file_transfer.send_file import send_file
@patch("socket.socket")
@patch("builtins.open")
def test_send_file_running_as_expected(file, sock):
# ===== initialization =====
conn = Mock()
sock.return_value.accept.return_value = conn, Mock()
f = iter([1, None])
file.return_value.__enter__.return_value.read.side_effect = lambda _: next(f)
# ===== invoke =====
send_file(filename="mytext.txt", testing=True)
# ===== ensurance =====
sock.assert_called_once()
sock.return_value.bind.assert_called_once()
sock.return_value.listen.assert_called_once()
sock.return_value.accept.assert_called_once()
conn.recv.assert_called_once()
file.return_value.__enter__.assert_called_once()
file.return_value.__enter__.return_value.read.assert_called()
conn.send.assert_called_once()
conn.close.assert_called_once()
sock.return_value.shutdown.assert_called_once()
sock.return_value.close.assert_called_once()