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# Standard library imports
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import unittest
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# System library imports
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from IPython.external.qt import QtGui
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# Local imports
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from IPython.frontend.qt.console.console_widget import ConsoleWidget
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class TestConsoleWidget(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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""" Create the application for the test case.
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"""
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cls._app = QtGui.QApplication.instance()
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if cls._app is None:
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cls._app = QtGui.QApplication([])
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cls._app.setQuitOnLastWindowClosed(False)
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@classmethod
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def tearDownClass(cls):
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""" Exit the application.
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"""
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QtGui.QApplication.quit()
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def test_special_characters(self):
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""" Are special characters displayed correctly?
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"""
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w = ConsoleWidget()
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cursor = w._get_prompt_cursor()
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test_inputs = ['xyz\b\b=\n', 'foo\b\nbar\n', 'foo\b\nbar\r\n', 'abc\rxyz\b\b=']
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expected_outputs = [u'x=z\u2029', u'foo\u2029bar\u2029', u'foo\u2029bar\u2029', 'x=z']
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for i, text in enumerate(test_inputs):
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w._insert_plain_text(cursor, text)
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cursor.select(cursor.Document)
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selection = cursor.selectedText()
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self.assertEquals(expected_outputs[i], selection)
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# clear all the text
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cursor.insertText('')
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