* Add fixtures
* Add test_printer_file.py
* Remove old broken printer tests
* Include a close_on_reopen test
* Add test_printer_network.py
* Add test_printer_serial.py
* Add test_printer_usb.py
* Add test_printer_lp.py
* Add test_printer_cups.py
* Add test_printer_win32raw.py
* Test the 'printers' property
* Fix conftest import formatting
* Fix failing LP tests
* Cancel close only if literal False|None _device
* Fix win32raw failing tests (maybe)
* Include win32raw close_on_reopen test
* Include test _raw methods to win32raw
* Replace general exceptions in win32raw
* Replace wrong exception in cups
* Include more tests to cups
* Extend cups tests
Benito López