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