/usr/lib/python2.7/dist-packages/traitsui/qt4/tests/test_clipboard.py is in python-traitsui 4.4.0-1.3.
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# (C) Copyright 2013 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This file is open source software distributed according to the terms in
# LICENSE.txt
#
import unittest
from cPickle import dumps
from pyface.qt import QtCore
from traitsui.qt4.clipboard import PyMimeData
class PMDSubclass(PyMimeData):
pass
class PyMimeDataTestCase(unittest.TestCase):
# Basic functionality tests
def test_pickle(self):
md = PyMimeData(data=0)
self.assertEqual(md._local_instance, 0)
self.assertTrue(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertFalse(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertEqual(bytes(md.data(PyMimeData.MIME_TYPE)), dumps(int)+dumps(0))
def test_nopickle(self):
md = PyMimeData(data=0, pickle=False)
self.assertEqual(md._local_instance, 0)
self.assertTrue(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertFalse(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertEqual(bytes(md.data(PyMimeData.NOPICKLE_MIME_TYPE)), str(id(0)))
def test_cant_pickle(self):
unpicklable = lambda: None
md = PyMimeData(data=unpicklable)
self.assertEqual(md._local_instance, unpicklable)
self.assertTrue(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertFalse(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertEqual(bytes(md.data(PyMimeData.NOPICKLE_MIME_TYPE)), str(id(unpicklable)))
def test_coerce_pymimedata(self):
md = PyMimeData(data=0)
md2 = PyMimeData.coerce(md)
self.assertEqual(md, md2)
def test_coerce_subclass(self):
md = PMDSubclass(data=0)
md2 = PyMimeData.coerce(md)
self.assertEqual(md, md2)
def test_coerce_QMimeData(self):
md = QtCore.QMimeData()
md.setText("test")
md2 = PyMimeData.coerce(md)
self.assertTrue(md2.hasText())
self.assertEqual(md2.text(), "test")
def test_coerce_object(self):
md = PyMimeData.coerce(0)
self.assertEqual(md._local_instance, 0)
self.assertTrue(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertFalse(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertEqual(bytes(md.data(PyMimeData.MIME_TYPE)), dumps(int)+dumps(0))
def test_coerce_unpicklable(self):
unpicklable = lambda: None
md = PyMimeData.coerce(unpicklable)
self.assertEqual(md._local_instance, unpicklable)
self.assertFalse(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertTrue(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
def test_coerce_list(self):
md = PyMimeData.coerce([0])
self.assertEqual(md._local_instance, [0])
self.assertTrue(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertFalse(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertEqual(bytes(md.data(PyMimeData.MIME_TYPE)), dumps(list)+dumps([0]))
def test_coerce_list_pymimedata(self):
md = PyMimeData(data=0)
md2 = PyMimeData.coerce([md])
self.assertEqual(md2._local_instance, [0])
self.assertTrue(md2.hasFormat(PyMimeData.MIME_TYPE))
self.assertFalse(md2.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertEqual(bytes(md2.data(PyMimeData.MIME_TYPE)), dumps(list)+dumps([0]))
def test_coerce_list_pymimedata_nopickle(self):
md = PyMimeData(data=0, pickle=False)
md2 = PyMimeData.coerce([md])
self.assertEqual(md2._local_instance, [0])
self.assertFalse(md2.hasFormat(PyMimeData.MIME_TYPE))
self.assertTrue(md2.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
def test_coerce_list_pymimedata_mixed(self):
md1 = PyMimeData(data=0, pickle=False)
md2 = PyMimeData(data=0)
md = PyMimeData.coerce([md1, md2])
self.assertEqual(md._local_instance, [0, 0])
self.assertFalse(md.hasFormat(PyMimeData.MIME_TYPE))
self.assertTrue(md.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
def test_subclass_coerce_pymimedata(self):
md = PyMimeData(data=0)
md2 = PMDSubclass.coerce(md)
self.assertTrue(isinstance(md2, PMDSubclass))
self.assertTrue(md2.hasFormat(PyMimeData.MIME_TYPE))
self.assertFalse(md2.hasFormat(PyMimeData.NOPICKLE_MIME_TYPE))
self.assertEqual(bytes(md2.data(PyMimeData.MIME_TYPE)), dumps(int)+dumps(0))
def test_instance(self):
md = PyMimeData(data=0)
self.assertEqual(md.instance(), 0)
def test_instance_unpickled(self):
md = PyMimeData(data=0)
# remove local instance to simulate cross-process
md._local_instance = None
self.assertEqual(md.instance(), 0)
def test_instance_nopickle(self):
md = PyMimeData(data=0, pickle=False)
# remove local instance to simulate cross-process
md._local_instance = None
self.assertEqual(md.instance(), None)
def test_instance_type(self):
md = PyMimeData(data=0)
self.assertEqual(md.instanceType(), int)
def test_instance_type_unpickled(self):
md = PyMimeData(data=0)
# remove local instance to simulate cross-process
md._local_instance = None
self.assertEqual(md.instanceType(), int)
def test_instance_type_nopickle(self):
md = PyMimeData(data=0, pickle=False)
# remove local instance to simulate cross-process
md._local_instance = None
self.assertEqual(md.instanceType(), None)
if __name__ == '__main__':
unittest.main()
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