71 lines
2.0 KiB
Python
71 lines
2.0 KiB
Python
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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"""tests for the File printer
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:author: `Patrick Kanzler <patrick.kanzler@fablab.fau.de>`_
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:organization: `python-escpos <https://github.com/python-escpos>`_
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:copyright: Copyright (c) 2016 `python-escpos <https://github.com/python-escpos>`_
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:license: GNU GPL v3
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"""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from __future__ import unicode_literals
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import six
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import mock
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from hypothesis import given
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from hypothesis.strategies import text
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import escpos.printer as printer
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if six.PY3:
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mock_open_call = 'builtins.open'
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else:
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mock_open_call = '__builtin__.open'
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@given(path=text())
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@mock.patch(mock_open_call)
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@mock.patch('escpos.escpos.Escpos.__init__')
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def test_load_file_printer(mock_escpos, mock_open, path):
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"""test the loading of the file-printer"""
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printer.File(devfile=path)
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assert mock_escpos.called
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mock_open.assert_called_with(path, "wb")
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@given(txt=text())
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@mock.patch.object(printer.File, 'device')
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@mock.patch(mock_open_call)
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@mock.patch('escpos.escpos.Escpos.__init__')
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def test_auto_flush(mock_escpos, mock_open, mock_device, txt):
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"""test auto_flush in file-printer"""
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p = printer.File(auto_flush=False)
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# inject the mocked device-object
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p.device = mock_device
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p._raw(txt)
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assert not mock_device.flush.called
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mock_device.reset_mock()
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p = printer.File(auto_flush=True)
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# inject the mocked device-object
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p.device = mock_device
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p._raw(txt)
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assert mock_device.flush.called
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@given(txt=text())
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@mock.patch.object(printer.File, 'device')
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@mock.patch(mock_open_call)
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def test_flush_on_close(mock_open, mock_device, txt):
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"""test flush on close in file-printer"""
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p = printer.File(auto_flush=False)
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# inject the mocked device-object
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p.device = mock_device
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p._raw(txt)
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assert not mock_device.flush.called
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p.close()
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assert mock_device.flush.called
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assert mock_device.close.called
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