113 lines
3.2 KiB
Python
113 lines
3.2 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""tests for the Cups printer
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:author: Benito López and the python-escpos developers
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:organization: `python-escpos <https://github.com/python-escpos>`_
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:copyright: Copyright (c) 2023 `python-escpos <https://github.com/python-escpos>`_
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:license: MIT
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"""
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import logging
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import sys
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import pytest
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# skip all the tests if the platform is Windows
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pytestmark = pytest.mark.skipif(
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sys.platform == "win32", reason="skipping non Windows platform specific tests"
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)
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def test_device_not_initialized(cupsprinter):
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"""
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GIVEN a cups printer object
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WHEN it is not initialized
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THEN check the device property is False
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"""
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assert cupsprinter._device is False
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def test_open_raise_exception(cupsprinter, devicenotfounderror):
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"""
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GIVEN a cups printer object
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WHEN open() is set to raise a DeviceNotFoundError on error
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THEN check the exception is raised
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"""
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cupsprinter.host = "fakehost"
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with pytest.raises(devicenotfounderror):
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cupsprinter.open(raise_not_found=True)
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def test_open_not_raise_exception(cupsprinter, caplog):
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"""
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GIVEN a cups printer object
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WHEN open() is set to not raise on error but simply cancel
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THEN check the error is logged and open() canceled
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"""
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cupsprinter.host = "fakehost"
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with caplog.at_level(logging.ERROR):
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cupsprinter.open(raise_not_found=False)
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assert "not available" in caplog.text
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assert cupsprinter.device is None
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def test_open(cupsprinter, caplog, mocker):
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"""
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GIVEN a cups printer object and a mocked pycups device
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WHEN a valid connection to a device is opened
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THEN check the success is logged and the device property is set
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"""
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mocker.patch("cups.Connection")
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mocker.patch("escpos.printer.CupsPrinter.printers", new={"test_printer": "Test"})
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cupsprinter.printer_name = "test_printer"
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assert cupsprinter.printer_name in cupsprinter.printers
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with caplog.at_level(logging.INFO):
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cupsprinter.open()
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assert "enabled" in caplog.text
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assert cupsprinter.device
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def test_close_on_reopen(cupsprinter, mocker):
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"""
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GIVEN a cups printer object and a mocked connection
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WHEN a valid connection to a device is reopened before close
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THEN check the close method is called if _device
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"""
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spy = mocker.spy(cupsprinter, "close")
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mocker.patch("cups.Connection")
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mocker.patch("escpos.printer.CupsPrinter.printers", new={"test_printer": "Test"})
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cupsprinter.printer_name = "test_printer"
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cupsprinter.open()
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assert cupsprinter._device
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cupsprinter.open()
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spy.assert_called_once_with()
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def test_close(cupsprinter, caplog, mocker):
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"""
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GIVEN a cups printer object and a mocked pycups device
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WHEN a connection is opened and closed
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THEN check the closing is logged and the device property is False
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"""
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mocker.patch("cups.Connection")
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mocker.patch("escpos.printer.CupsPrinter.printers", new={"test_printer": "Test"})
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cupsprinter.printer_name = "test_printer"
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cupsprinter.open()
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with caplog.at_level(logging.INFO):
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cupsprinter.close()
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assert "Closing" in caplog.text
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assert cupsprinter._device is False
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