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Fix race condition in javascript kernel message processing...
Fix race condition in javascript kernel message processing Because the binary messages are now deserialized using the asynchronous FileReader API, we need to have some way to force the messages to still be processed in the order they are received. This patch implements a simple processing queue using promises.

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test_console_widget.py
82 lines | 2.9 KiB | text/x-python | PythonLexer
/ IPython / qt / console / tests / test_console_widget.py
# Standard library imports
import unittest
# System library imports
from IPython.external.qt import QtCore, QtGui
# Local imports
from IPython.qt.console.console_widget import ConsoleWidget
import IPython.testing.decorators as dec
setup = dec.skip_file_no_x11(__name__)
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.assertEqual(expected_outputs[i], selection)
# clear all the text
cursor.insertText('')
def test_link_handling(self):
noKeys = QtCore.Qt
noButton = QtCore.Qt.MouseButton(0)
noButtons = QtCore.Qt.MouseButtons(0)
noModifiers = QtCore.Qt.KeyboardModifiers(0)
MouseMove = QtCore.QEvent.MouseMove
QMouseEvent = QtGui.QMouseEvent
w = ConsoleWidget()
cursor = w._get_prompt_cursor()
w._insert_html(cursor, '<a href="http://python.org">written in</a>')
obj = w._control
tip = QtGui.QToolTip
self.assertEqual(tip.text(), u'')
# should be somewhere else
elsewhereEvent = QMouseEvent(MouseMove, QtCore.QPoint(50,50),
noButton, noButtons, noModifiers)
w.eventFilter(obj, elsewhereEvent)
self.assertEqual(tip.isVisible(), False)
self.assertEqual(tip.text(), u'')
#self.assertEqual(tip.text(), u'')
# should be over text
overTextEvent = QMouseEvent(MouseMove, QtCore.QPoint(1,5),
noButton, noButtons, noModifiers)
w.eventFilter(obj, overTextEvent)
self.assertEqual(tip.isVisible(), True)
self.assertEqual(tip.text(), "http://python.org")
# should still be over text
stillOverTextEvent = QMouseEvent(MouseMove, QtCore.QPoint(1,5),
noButton, noButtons, noModifiers)
w.eventFilter(obj, stillOverTextEvent)
self.assertEqual(tip.isVisible(), True)
self.assertEqual(tip.text(), "http://python.org")