


from unittest.mock import Mock, patch

from file_transfer.send_file import send_file






@patch('socket.socket'       )
@patch('builtins.open'       )
def 							__lowercase       (			__lowerCAmelCase							:    str ,   __lowerCAmelCase							:    Tuple       ):
							a__					=					Mock()
							a__					=					conn, Mock()
							a__					=					iter([1, None]       )
							a__					=					lambda __lowerCAmelCase       : next(__UpperCamelCase       )

							# ===== invoke =====
							send_file(filename='mytext.txt' ,   testing=__UpperCamelCase       )

							# ===== 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()










from __future__ import annotations






def 							__lowercase       (			__lowerCAmelCase							:    float ,   __lowerCAmelCase							:    float ,   __lowerCAmelCase							:    float       ):
							if (voltage, current, resistance).count(0       ) != 1:
														raise ValueError('One and only one argument must be 0'       )
							if resistance < 0:
														raise ValueError('Resistance cannot be negative'       )
							if voltage == 0:
														return {"voltage": float(current * resistance       )}
							elif current == 0:
														return {"current": voltage / resistance}
							elif resistance == 0:
														return {"resistance": voltage / current}
							else:
														raise ValueError('Exactly one argument must be 0'       )


if __name__ == "__main__":
						import doctest

						doctest.testmod()




