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A Python parser for MediaWiki wikicode https://mwparserfromhell.readthedocs.io/
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mwparserfromhell/tests/test_smart_list.py

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  1. # -*- coding: utf-8  -*-

  2. #

  3. # Copyright (C) 2012-2013 Ben Kurtovic <ben.kurtovic@verizon.net>

  4. #

  5. # Permission is hereby granted, free of charge, to any person obtaining a copy

  6. # of this software and associated documentation files (the "Software"), to deal

  7. # in the Software without restriction, including without limitation the rights

  8. # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  9. # copies of the Software, and to permit persons to whom the Software is

  10. # furnished to do so, subject to the following conditions:

  11. #

  12. # The above copyright notice and this permission notice shall be included in

  13. # all copies or substantial portions of the Software.

  14. #

  15. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  16. # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  17. # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  18. # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  19. # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  20. # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

  21. # SOFTWARE.

  22. 

  23. from __future__ import unicode_literals

  24. import unittest

  25. 

  26. from mwparserfromhell.compat import py3k, range

  27. from mwparserfromhell.smart_list import SmartList, _ListProxy

  28. 

  29. class TestSmartList(unittest.TestCase):

  30.     """Test cases for the SmartList class and its child, _ListProxy."""

  31. 

  32.     def _test_list_methods(self, builder):

  33.         """Run tests on the public methods of a list built with *builder*."""

  34.         list1 = builder(range(5))

  35.         list2 = builder(["foo"])

  36.         list3 = builder([("a", 5), ("d", 2), ("b", 8), ("c", 3)])

  37. 

  38.         list1.append(5)

  39.         list1.append(1)

  40.         list1.append(2)

  41.         self.assertEquals([0, 1, 2, 3, 4, 5, 1, 2], list1)

  42. 

  43.         self.assertEquals(0, list1.count(6))

  44.         self.assertEquals(2, list1.count(1))

  45. 

  46.         list1.extend(range(5, 8))

  47.         self.assertEquals([0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7], list1)

  48. 

  49.         self.assertEquals(1, list1.index(1))

  50.         self.assertEquals(6, list1.index(1, 3))

  51.         self.assertEquals(6, list1.index(1, 3, 7))

  52.         self.assertRaises(ValueError, list1.index, 1, 3, 5)

  53. 

  54.         list1.insert(0, -1)

  55.         self.assertEquals([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7], list1)

  56.         list1.insert(-1, 6.5)

  57.         self.assertEquals([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7], list1)

  58.         list1.insert(13, 8)

  59.         self.assertEquals([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7, 8], list1)

  60. 

  61.         self.assertEquals(8, list1.pop())

  62.         self.assertEquals(7, list1.pop())

  63.         self.assertEquals([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5], list1)

  64.         self.assertEquals(-1, list1.pop(0))

  65.         self.assertEquals(5, list1.pop(5))

  66.         self.assertEquals(6.5, list1.pop(-1))

  67.         self.assertEquals([0, 1, 2, 3, 4, 1, 2, 5, 6], list1)

  68.         self.assertEquals("foo", list2.pop())

  69.         self.assertRaises(IndexError, list2.pop)

  70.         self.assertEquals([], list2)

  71. 

  72.         list1.remove(6)

  73.         self.assertEquals([0, 1, 2, 3, 4, 1, 2, 5], list1)

  74.         list1.remove(1)

  75.         self.assertEquals([0, 2, 3, 4, 1, 2, 5], list1)

  76.         list1.remove(1)

  77.         self.assertEquals([0, 2, 3, 4, 2, 5], list1)

  78.         self.assertRaises(ValueError, list1.remove, 1)

  79. 

  80.         list1.reverse()

  81.         self.assertEquals([5, 2, 4, 3, 2, 0], list1)

  82. 

  83.         list1.sort()

  84.         self.assertEquals([0, 2, 2, 3, 4, 5], list1)

  85.         list1.sort(reverse=True)

  86.         self.assertEquals([5, 4, 3, 2, 2, 0], list1)

  87.         list1.sort(cmp=lambda x, y: abs(3 - x) - abs(3 - y))  # Distance from 3

  88.         self.assertEquals([3, 4, 2, 2, 5, 0], list1)

  89.         list1.sort(cmp=lambda x, y: abs(3 - x) - abs(3 - y), reverse=True)

  90.         self.assertEquals([0, 5, 4, 2, 2, 3], list1)

  91.         list3.sort(key=lambda i: i[1])

  92.         self.assertEquals([("d", 2), ("c", 3), ("a", 5), ("b", 8)], list3)

  93.         list3.sort(key=lambda i: i[1], reverse=True)

  94.         self.assertEquals([("b", 8), ("a", 5), ("c", 3), ("d", 2)], list3)

  95. 

  96.     def test_docs(self):

  97.         """make sure the methods of SmartList/_ListProxy have docstrings"""

  98.         methods = ["append", "count", "extend", "index", "insert", "pop",

  99.                    "remove", "reverse", "sort"]

  100.         for meth in methods:

  101.             expected = getattr(list, meth).__doc__

  102.             smartlist_doc = getattr(SmartList, meth).__doc__

  103.             listproxy_doc = getattr(_ListProxy, meth).__doc__

  104.             self.assertEquals(expected, smartlist_doc)

  105.             self.assertEquals(expected, listproxy_doc)

  106. 

  107.     def test_doctest(self):

  108.         """make sure the test embedded in SmartList's docstring passes"""

  109.         parent = SmartList([0, 1, 2, 3])

  110.         self.assertEquals([0, 1, 2, 3], parent)

  111.         child = parent[2:]

  112.         self.assertEquals([2, 3], child)

  113.         child.append(4)

  114.         self.assertEquals([2, 3, 4], child)

  115.         self.assertEquals([0, 1, 2, 3, 4], parent)

  116. 

  117.     def test_parent_get_set_del(self):

  118.         """make sure SmartList's getitem/setitem/delitem work"""

  119.         def assign(L, s1, s2, s3, val):

  120.             L[s1:s2:s3] = val

  121.         def delete(L, s1):

  122.             del L[s1]

  123. 

  124.         list1 = SmartList([0, 1, 2, 3, "one", "two"])

  125.         list2 = SmartList(list(range(10)))

  126. 

  127.         self.assertEquals(1, list1[1])

  128.         self.assertEquals("one", list1[-2])

  129.         self.assertEquals([2, 3], list1[2:4])

  130.         self.assertRaises(IndexError, lambda: list1[6])

  131.         self.assertRaises(IndexError, lambda: list1[-7])

  132. 

  133.         self.assertEquals([0, 1, 2], list1[:3])

  134.         self.assertEquals([0, 1, 2, 3, "one", "two"], list1[:])

  135.         self.assertEquals([3, "one", "two"], list1[3:])

  136.         self.assertEquals(["one", "two"], list1[-2:])

  137.         self.assertEquals([0, 1], list1[:-4])

  138.         self.assertEquals([], list1[6:])

  139.         self.assertEquals([], list1[4:2])

  140. 

  141.         self.assertEquals([0, 2, "one"], list1[0:5:2])

  142.         self.assertEquals([0, 2], list1[0:-3:2])

  143.         self.assertEquals([0, 1, 2, 3, "one", "two"], list1[::])

  144.         self.assertEquals([2, 3, "one", "two"], list1[2::])

  145.         self.assertEquals([0, 1, 2, 3], list1[:4:])

  146.         self.assertEquals([2, 3], list1[2:4:])

  147.         self.assertEquals([0, 2, 4, 6, 8], list2[::2])

  148.         self.assertEquals([2, 5, 8], list2[2::3])

  149.         self.assertEquals([0, 3], list2[:6:3])

  150.         self.assertEquals([2, 5, 8], list2[-8:9:3])

  151.         self.assertEquals([], list2[100000:1000:-100])

  152. 

  153.         list1[3] = 100

  154.         self.assertEquals(100, list1[3])

  155.         list1[5:] = [6, 7, 8]

  156.         self.assertEquals([6, 7, 8], list1[5:])

  157.         self.assertEquals([0, 1, 2, 100, "one", 6, 7, 8], list1)

  158.         list1[2:4] = [-1, -2, -3, -4, -5]

  159.         self.assertEquals([0, 1, -1, -2, -3, -4, -5, "one", 6, 7, 8], list1)

  160.         list1[0:-3] = [99]

  161.         self.assertEquals([99, 6, 7, 8], list1)

  162.         list2[0:6:2] = [100, 102, 104]

  163.         self.assertEquals([100, 1, 102, 3, 104, 5, 6, 7, 8, 9], list2)

  164.         list2[::3] = [200, 203, 206, 209]

  165.         self.assertEquals([200, 1, 102, 203, 104, 5, 206, 7, 8, 209], list2)

  166.         list2[::] = range(7)

  167.         self.assertEquals([0, 1, 2, 3, 4, 5, 6], list2)

  168.         self.assertRaises(ValueError, assign, list2, 0, 5, 2,

  169.                           [100, 102, 104, 106])

  170. 

  171.         del list2[2]

  172.         self.assertEquals([0, 1, 3, 4, 5, 6], list2)

  173.         del list2[-3]

  174.         self.assertEquals([0, 1, 3, 5, 6], list2)

  175.         self.assertRaises(IndexError, delete, list2, 100)

  176.         self.assertRaises(IndexError, delete, list2, -6)

  177.         list2[:] = range(10)

  178.         del list2[3:6]

  179.         self.assertEquals([0, 1, 2, 6, 7, 8, 9], list2)

  180.         del list2[-2:]

  181.         self.assertEquals([0, 1, 2, 6, 7], list2)

  182.         del list2[:2]

  183.         self.assertEquals([2, 6, 7], list2)

  184.         list2[:] = range(10)

  185.         del list2[2:8:2]

  186.         self.assertEquals([0, 1, 3, 5, 7, 8, 9], list2)

  187. 

  188.     def test_parent_add(self):

  189.         """make sure SmartList's add/radd/iadd work"""

  190.         list1 = SmartList(range(5))

  191.         list2 = SmartList(range(5, 10))

  192.         self.assertEquals([0, 1, 2, 3, 4, 5, 6], list1 + [5, 6])

  193.         self.assertEquals([0, 1, 2, 3, 4], list1)

  194.         self.assertEquals(list(range(10)), list1 + list2)

  195.         self.assertEquals([-2, -1, 0, 1, 2, 3, 4], [-2, -1] + list1)

  196.         self.assertEquals([0, 1, 2, 3, 4], list1)

  197.         list1 += ["foo", "bar", "baz"]

  198.         self.assertEquals([0, 1, 2, 3, 4, "foo", "bar", "baz"], list1)

  199. 

  200.     def test_parent_unaffected_magics(self):

  201.         """sanity checks against SmartList features that were not modified"""

  202.         list1 = SmartList([0, 1, 2, 3, "one", "two"])

  203.         list2 = SmartList([])

  204.         list3 = SmartList([0, 2, 3, 4])

  205.         list4 = SmartList([0, 1, 2])

  206. 

  207.         if py3k:

  208.             self.assertEquals("[0, 1, 2, 3, 'one', 'two']", str(list1))

  209.             self.assertEquals(b"[0, 1, 2, 3, 'one', 'two']", bytes(list1))

  210.             self.assertEquals("[0, 1, 2, 3, 'one', 'two']", repr(list1))

  211.         else:

  212.             self.assertEquals("[0, 1, 2, 3, u'one', u'two']", unicode(list1))

  213.             self.assertEquals(b"[0, 1, 2, 3, u'one', u'two']", str(list1))

  214.             self.assertEquals(b"[0, 1, 2, 3, u'one', u'two']", repr(list1))

  215. 

  216.         self.assertTrue(list1 < list3)

  217.         self.assertTrue(list1 <= list3)

  218.         self.assertFalse(list1 == list3)

  219.         self.assertTrue(list1 != list3)

  220.         self.assertFalse(list1 > list3)

  221.         self.assertFalse(list1 >= list3)

  222. 

  223.         other1 = [0, 2, 3, 4]

  224.         self.assertTrue(list1 < other1)

  225.         self.assertTrue(list1 <= other1)

  226.         self.assertFalse(list1 == other1)

  227.         self.assertTrue(list1 != other1)

  228.         self.assertFalse(list1 > other1)

  229.         self.assertFalse(list1 >= other1)

  230. 

  231.         other2 = [0, 0, 1, 2]

  232.         self.assertFalse(list1 < other2)

  233.         self.assertFalse(list1 <= other2)

  234.         self.assertFalse(list1 == other2)

  235.         self.assertTrue(list1 != other2)

  236.         self.assertTrue(list1 > other2)

  237.         self.assertTrue(list1 >= other2)

  238. 

  239.         other3 = [0, 1, 2, 3, "one", "two"]

  240.         self.assertFalse(list1 < other3)

  241.         self.assertTrue(list1 <= other3)

  242.         self.assertTrue(list1 == other3)

  243.         self.assertFalse(list1 != other3)

  244.         self.assertFalse(list1 > other3)

  245.         self.assertTrue(list1 >= other3)

  246. 

  247.         self.assertTrue(bool(list1))

  248.         self.assertFalse(bool(list2))

  249. 

  250.         self.assertEquals(6, len(list1))

  251.         self.assertEquals(0, len(list2))

  252. 

  253.         out = []

  254.         for obj in list1:

  255.             out.append(obj)

  256.         self.assertEquals([0, 1, 2, 3, "one", "two"], out)

  257. 

  258.         out = []

  259.         for ch in list2:

  260.             out.append(ch)

  261.         self.assertEquals([], out)

  262. 

  263.         gen1 = iter(list1)

  264.         out = []

  265.         for i in range(len(list1)):

  266.             out.append(gen1.next())

  267.         self.assertRaises(StopIteration, gen1.next)

  268.         self.assertEquals([0, 1, 2, 3, "one", "two"], out)

  269.         gen2 = iter(list2)

  270.         self.assertRaises(StopIteration, gen2.next)

  271. 

  272.         self.assertEquals(["two", "one", 3, 2, 1, 0], list(reversed(list1)))

  273.         self.assertEquals([], list(reversed(list2)))

  274. 

  275.         self.assertTrue("one" in list1)

  276.         self.assertTrue(3 in list1)

  277.         self.assertFalse(10 in list1)

  278.         self.assertFalse(0 in list2)

  279. 

  280.         self.assertEquals([], list2 * 5)

  281.         self.assertEquals([], 5 * list2)

  282.         self.assertEquals([0, 1, 2, 0, 1, 2, 0, 1, 2], list4 * 3)

  283.         self.assertEquals([0, 1, 2, 0, 1, 2, 0, 1, 2], 3 * list4)

  284.         list4 *= 2

  285.         self.assertEquals([0, 1, 2, 0, 1, 2], list4)

  286. 

  287.     def test_parent_methods(self):

  288.         """make sure SmartList's non-magic methods work, like append()"""

  289.         self._test_list_methods(lambda L: SmartList(L))

  290. 

  291.     def test_child_magics(self):

  292.         """make sure _ListProxy's magically implemented features work"""

  293.         pass

  294.         # if py3k:

  295.         #     __str__

  296.         #     __bytes__

  297.         # else:

  298.         #     __unicode__

  299.         #     __str__

  300.         # __repr__

  301.         # __lt__

  302.         # __le__

  303.         # __eq__

  304.         # __ne__

  305.         # __gt__

  306.         # __ge__

  307.         # if py3k:

  308.         #     __bool__

  309.         # else:

  310.         #     __nonzero__

  311.         # __len__

  312.         # __getitem__

  313.         # __setitem__

  314.         # __delitem__

  315.         # __iter__

  316.         # __reversed__

  317.         # __contains__

  318.         # if not py3k:

  319.         #     __getslice__

  320.         #     __setslice__

  321.         #     __delslice__

  322.         # __add__

  323.         # __radd__

  324.         # __iadd__

  325.         # __mul__

  326.         # __rmul__

  327.         # __imul__

  328. 

  329.     def test_child_methods(self):

  330.         """make sure _ListProxy's non-magic methods work, like append()"""

  331.         self._test_list_methods(lambda L: SmartList(list(L))[:])

  332.         self._test_list_methods(lambda L: SmartList([999] + list(L))[1:])

  333.         self._test_list_methods(lambda L: SmartList(list(L) + [999])[:-1])

  334.         builder = lambda L: SmartList([101, 102] + list(L) + [201, 202])[2:-2]

  335.         self._test_list_methods(builder)

  336. 

  337.     def test_influence(self):

  338.         """make sure changes are propagated from parents to children"""

  339.         pass

  340.         # also test whether children that exit scope are removed from parent's map

  341. 

  342. if __name__ == "__main__":

  343.     unittest.main(verbosity=2)