A Python parser for MediaWiki wikicode https://mwparserfromhell.readthedocs.io/
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test_smart_list.py 13 KiB

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  1. # Copyright (C) 2012-2020 Ben Kurtovic <ben.kurtovic@gmail.com>
  2. #
  3. # Permission is hereby granted, free of charge, to any person obtaining a copy
  4. # of this software and associated documentation files (the "Software"), to deal
  5. # in the Software without restriction, including without limitation the rights
  6. # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  7. # copies of the Software, and to permit persons to whom the Software is
  8. # furnished to do so, subject to the following conditions:
  9. #
  10. # The above copyright notice and this permission notice shall be included in
  11. # all copies or substantial portions of the Software.
  12. #
  13. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14. # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15. # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16. # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17. # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18. # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19. # SOFTWARE.
  20. """
  21. Test cases for the SmartList class and its child, ListProxy.
  22. """
  23. import pytest
  24. from mwparserfromhell.smart_list import SmartList
  25. from mwparserfromhell.smart_list.list_proxy import ListProxy
  26. def _test_get_set_del_item(builder):
  27. """Run tests on __get/set/delitem__ of a list built with *builder*."""
  28. list1 = builder([0, 1, 2, 3, "one", "two"])
  29. list2 = builder(list(range(10)))
  30. assert 1 == list1[1]
  31. assert "one" == list1[-2]
  32. assert [2, 3] == list1[2:4]
  33. with pytest.raises(IndexError):
  34. list1[6]
  35. with pytest.raises(IndexError):
  36. list1[-7]
  37. assert [0, 1, 2] == list1[:3]
  38. assert [0, 1, 2, 3, "one", "two"] == list1[:]
  39. assert [3, "one", "two"] == list1[3:]
  40. assert [3, "one", "two"] == list1[3:100]
  41. assert ["one", "two"] == list1[-2:]
  42. assert [0, 1] == list1[:-4]
  43. assert [] == list1[6:]
  44. assert [] == list1[4:2]
  45. assert [0, 2, "one"] == list1[0:5:2]
  46. assert [0, 2] == list1[0:-3:2]
  47. assert [0, 1, 2, 3, "one", "two"] == list1[::]
  48. assert [2, 3, "one", "two"] == list1[2::]
  49. assert [0, 1, 2, 3] == list1[:4:]
  50. assert [2, 3] == list1[2:4:]
  51. assert [0, 2, 4, 6, 8] == list2[::2]
  52. assert [2, 5, 8] == list2[2::3]
  53. assert [0, 3] == list2[:6:3]
  54. assert [2, 5, 8] == list2[-8:9:3]
  55. assert [] == list2[100000:1000:-100]
  56. list1[3] = 100
  57. assert 100 == list1[3]
  58. list1[-3] = 101
  59. assert [0, 1, 2, 101, "one", "two"] == list1
  60. list1[5:] = [6, 7, 8]
  61. assert [6, 7, 8] == list1[5:]
  62. assert [0, 1, 2, 101, "one", 6, 7, 8] == list1
  63. list1[2:4] = [-1, -2, -3, -4, -5]
  64. assert [0, 1, -1, -2, -3, -4, -5, "one", 6, 7, 8] == list1
  65. list1[0:-3] = [99]
  66. assert [99, 6, 7, 8] == list1
  67. list2[0:6:2] = [100, 102, 104]
  68. assert [100, 1, 102, 3, 104, 5, 6, 7, 8, 9] == list2
  69. list2[::3] = [200, 203, 206, 209]
  70. assert [200, 1, 102, 203, 104, 5, 206, 7, 8, 209] == list2
  71. list2[::] = range(7)
  72. assert [0, 1, 2, 3, 4, 5, 6] == list2
  73. with pytest.raises(ValueError):
  74. list2[0:5:2] = [100, 102, 104, 106]
  75. with pytest.raises(IndexError):
  76. list2[7] = "foo"
  77. with pytest.raises(IndexError):
  78. list2[-8] = "foo"
  79. del list2[2]
  80. assert [0, 1, 3, 4, 5, 6] == list2
  81. del list2[-3]
  82. assert [0, 1, 3, 5, 6] == list2
  83. with pytest.raises(IndexError):
  84. del list2[100]
  85. with pytest.raises(IndexError):
  86. del list2[-6]
  87. list2[:] = range(10)
  88. del list2[3:6]
  89. assert [0, 1, 2, 6, 7, 8, 9] == list2
  90. del list2[-2:]
  91. assert [0, 1, 2, 6, 7] == list2
  92. del list2[:2]
  93. assert [2, 6, 7] == list2
  94. list2[:] = range(10)
  95. del list2[2:8:2]
  96. assert [0, 1, 3, 5, 7, 8, 9] == list2
  97. def _test_add_radd_iadd(builder):
  98. """Run tests on __r/i/add__ of a list built with *builder*."""
  99. list1 = builder(range(5))
  100. list2 = builder(range(5, 10))
  101. assert [0, 1, 2, 3, 4, 5, 6] == list1 + [5, 6]
  102. assert [0, 1, 2, 3, 4] == list1
  103. assert list(range(10)) == list1 + list2
  104. assert [-2, -1, 0, 1, 2, 3, 4], [-2, -1] + list1
  105. assert [0, 1, 2, 3, 4] == list1
  106. list1 += ["foo", "bar", "baz"]
  107. assert [0, 1, 2, 3, 4, "foo", "bar", "baz"] == list1
  108. def _test_other_magic_methods(builder):
  109. """Run tests on other magic methods of a list built with *builder*."""
  110. list1 = builder([0, 1, 2, 3, "one", "two"])
  111. list2 = builder([])
  112. list3 = builder([0, 2, 3, 4])
  113. list4 = builder([0, 1, 2])
  114. assert "[0, 1, 2, 3, 'one', 'two']" == str(list1)
  115. assert b"\x00\x01\x02" == bytes(list4)
  116. assert "[0, 1, 2, 3, 'one', 'two']" == repr(list1)
  117. assert list1 < list3
  118. assert list1 <= list3
  119. assert list1 != list3
  120. assert list1 != list3
  121. assert list1 <= list3
  122. assert list1 < list3
  123. other1 = [0, 2, 3, 4]
  124. assert list1 < other1
  125. assert list1 <= other1
  126. assert list1 != other1
  127. assert list1 != other1
  128. assert list1 <= other1
  129. assert list1 < other1
  130. other2 = [0, 0, 1, 2]
  131. assert list1 >= other2
  132. assert list1 > other2
  133. assert list1 != other2
  134. assert list1 != other2
  135. assert list1 > other2
  136. assert list1 >= other2
  137. other3 = [0, 1, 2, 3, "one", "two"]
  138. assert list1 >= other3
  139. assert list1 <= other3
  140. assert list1 == other3
  141. assert list1 == other3
  142. assert list1 <= other3
  143. assert list1 >= other3
  144. assert bool(list1) is True
  145. assert bool(list2) is False
  146. assert 6 == len(list1)
  147. assert 0 == len(list2)
  148. out = []
  149. for obj in list1:
  150. out.append(obj)
  151. assert [0, 1, 2, 3, "one", "two"] == out
  152. out = []
  153. for ch in list2:
  154. out.append(ch)
  155. assert [] == out
  156. gen1 = iter(list1)
  157. out = []
  158. for _ in range(len(list1)):
  159. out.append(next(gen1))
  160. with pytest.raises(StopIteration):
  161. next(gen1)
  162. assert [0, 1, 2, 3, "one", "two"] == out
  163. gen2 = iter(list2)
  164. with pytest.raises(StopIteration):
  165. next(gen2)
  166. assert ["two", "one", 3, 2, 1, 0] == list(reversed(list1))
  167. assert [] == list(reversed(list2))
  168. assert "one" in list1
  169. assert 3 in list1
  170. assert 10 not in list1
  171. assert 0 not in list2
  172. assert [] == list2 * 5
  173. assert [] == 5 * list2
  174. assert [0, 1, 2, 0, 1, 2, 0, 1, 2] == list4 * 3
  175. assert [0, 1, 2, 0, 1, 2, 0, 1, 2] == 3 * list4
  176. list4 *= 2
  177. assert [0, 1, 2, 0, 1, 2] == list4
  178. def _test_list_methods(builder):
  179. """Run tests on the public methods of a list built with *builder*."""
  180. list1 = builder(range(5))
  181. list2 = builder(["foo"])
  182. list3 = builder([("a", 5), ("d", 2), ("b", 8), ("c", 3)])
  183. list1.append(5)
  184. list1.append(1)
  185. list1.append(2)
  186. assert [0, 1, 2, 3, 4, 5, 1, 2] == list1
  187. assert 0 == list1.count(6)
  188. assert 2 == list1.count(1)
  189. list1.extend(range(5, 8))
  190. assert [0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7] == list1
  191. assert 1 == list1.index(1)
  192. assert 6 == list1.index(1, 3)
  193. assert 6 == list1.index(1, 3, 7)
  194. with pytest.raises(ValueError):
  195. list1.index(1, 3, 5)
  196. list1.insert(0, -1)
  197. assert [-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7] == list1
  198. list1.insert(-1, 6.5)
  199. assert [-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7] == list1
  200. list1.insert(13, 8)
  201. assert [-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7, 8] == list1
  202. assert 8 == list1.pop()
  203. assert 7 == list1.pop()
  204. assert [-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5] == list1
  205. assert -1 == list1.pop(0)
  206. assert 5 == list1.pop(5)
  207. assert 6.5 == list1.pop(-1)
  208. assert [0, 1, 2, 3, 4, 1, 2, 5, 6] == list1
  209. assert "foo" == list2.pop()
  210. with pytest.raises(IndexError):
  211. list2.pop()
  212. assert [] == list2
  213. list1.remove(6)
  214. assert [0, 1, 2, 3, 4, 1, 2, 5] == list1
  215. list1.remove(1)
  216. assert [0, 2, 3, 4, 1, 2, 5] == list1
  217. list1.remove(1)
  218. assert [0, 2, 3, 4, 2, 5] == list1
  219. with pytest.raises(ValueError):
  220. list1.remove(1)
  221. list1.reverse()
  222. assert [5, 2, 4, 3, 2, 0] == list1
  223. list1.sort()
  224. assert [0, 2, 2, 3, 4, 5] == list1
  225. list1.sort(reverse=True)
  226. assert [5, 4, 3, 2, 2, 0] == list1
  227. list3.sort(key=lambda i: i[1])
  228. assert [("d", 2), ("c", 3), ("a", 5), ("b", 8)] == list3
  229. list3.sort(key=lambda i: i[1], reverse=True)
  230. assert [("b", 8), ("a", 5), ("c", 3), ("d", 2)] == list3
  231. def _dispatch_test_for_children(meth):
  232. """Run a test method on various different types of children."""
  233. meth(lambda L: SmartList(list(L))[:])
  234. meth(lambda L: SmartList([999] + list(L))[1:])
  235. meth(lambda L: SmartList(list(L) + [999])[:-1])
  236. meth(lambda L: SmartList([101, 102] + list(L) + [201, 202])[2:-2])
  237. def test_docs():
  238. """make sure the methods of SmartList/ListProxy have docstrings"""
  239. methods = [
  240. "append",
  241. "count",
  242. "extend",
  243. "index",
  244. "insert",
  245. "pop",
  246. "remove",
  247. "reverse",
  248. "sort",
  249. ]
  250. for meth in methods:
  251. expected = getattr(list, meth).__doc__
  252. smartlist_doc = getattr(SmartList, meth).__doc__
  253. listproxy_doc = getattr(ListProxy, meth).__doc__
  254. assert expected == smartlist_doc
  255. assert expected == listproxy_doc
  256. def test_doctest():
  257. """make sure the test embedded in SmartList's docstring passes"""
  258. parent = SmartList([0, 1, 2, 3])
  259. assert [0, 1, 2, 3] == parent
  260. child = parent[2:]
  261. assert [2, 3] == child
  262. child.append(4)
  263. assert [2, 3, 4] == child
  264. assert [0, 1, 2, 3, 4] == parent
  265. def test_parent_get_set_del():
  266. """make sure SmartList's getitem/setitem/delitem work"""
  267. _test_get_set_del_item(SmartList)
  268. def test_parent_add():
  269. """make sure SmartList's add/radd/iadd work"""
  270. _test_add_radd_iadd(SmartList)
  271. def test_parent_other_magics():
  272. """make sure SmartList's other magically implemented features work"""
  273. _test_other_magic_methods(SmartList)
  274. def test_parent_methods():
  275. """make sure SmartList's non-magic methods work, like append()"""
  276. _test_list_methods(SmartList)
  277. def test_child_get_set_del():
  278. """make sure ListProxy's getitem/setitem/delitem work"""
  279. _dispatch_test_for_children(_test_get_set_del_item)
  280. def test_child_add():
  281. """make sure ListProxy's add/radd/iadd work"""
  282. _dispatch_test_for_children(_test_add_radd_iadd)
  283. def test_child_other_magics():
  284. """make sure ListProxy's other magically implemented features work"""
  285. _dispatch_test_for_children(_test_other_magic_methods)
  286. def test_child_methods():
  287. """make sure ListProxy's non-magic methods work, like append()"""
  288. _dispatch_test_for_children(_test_list_methods)
  289. def test_influence():
  290. """make sure changes are propagated from parents to children"""
  291. parent = SmartList([0, 1, 2, 3, 4, 5])
  292. child1 = parent[2:]
  293. child2 = parent[2:5]
  294. assert [0, 1, 2, 3, 4, 5] == parent
  295. assert [2, 3, 4, 5] == child1
  296. assert [2, 3, 4] == child2
  297. assert 2 == len(parent._children)
  298. parent.append(6)
  299. child1.append(7)
  300. child2.append(4.5)
  301. assert [0, 1, 2, 3, 4, 4.5, 5, 6, 7] == parent
  302. assert [2, 3, 4, 4.5, 5, 6, 7] == child1
  303. assert [2, 3, 4, 4.5] == child2
  304. parent.insert(0, -1)
  305. parent.insert(4, 2.5)
  306. parent.insert(10, 6.5)
  307. assert [-1, 0, 1, 2, 2.5, 3, 4, 4.5, 5, 6, 6.5, 7] == parent
  308. assert [2, 2.5, 3, 4, 4.5, 5, 6, 6.5, 7] == child1
  309. assert [2, 2.5, 3, 4, 4.5] == child2
  310. assert 7 == parent.pop()
  311. assert 6.5 == child1.pop()
  312. assert 4.5 == child2.pop()
  313. assert [-1, 0, 1, 2, 2.5, 3, 4, 5, 6] == parent
  314. assert [2, 2.5, 3, 4, 5, 6] == child1
  315. assert [2, 2.5, 3, 4] == child2
  316. parent.remove(-1)
  317. child1.remove(2.5)
  318. assert [0, 1, 2, 3, 4, 5, 6] == parent
  319. assert [2, 3, 4, 5, 6] == child1
  320. assert [2, 3, 4] == child2
  321. assert 0 == parent.pop(0)
  322. assert [1, 2, 3, 4, 5, 6] == parent
  323. assert [2, 3, 4, 5, 6] == child1
  324. assert [2, 3, 4] == child2
  325. child2.reverse()
  326. assert [1, 4, 3, 2, 5, 6] == parent
  327. assert [4, 3, 2, 5, 6] == child1
  328. assert [4, 3, 2] == child2
  329. parent.extend([7, 8])
  330. child1.extend([8.1, 8.2])
  331. child2.extend([1.9, 1.8])
  332. assert [1, 4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2] == parent
  333. assert [4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2] == child1
  334. assert [4, 3, 2, 1.9, 1.8] == child2
  335. child3 = parent[9:]
  336. assert [8, 8.1, 8.2] == child3
  337. del parent[8:]
  338. assert [1, 4, 3, 2, 1.9, 1.8, 5, 6] == parent
  339. assert [4, 3, 2, 1.9, 1.8, 5, 6] == child1
  340. assert [4, 3, 2, 1.9, 1.8] == child2
  341. assert [] == child3
  342. assert 0 == len(child3)
  343. del child1
  344. assert [1, 4, 3, 2, 1.9, 1.8, 5, 6] == parent
  345. assert [4, 3, 2, 1.9, 1.8] == child2
  346. assert [] == child3
  347. assert 2 == len(parent._children)
  348. del child3
  349. assert [1, 4, 3, 2, 1.9, 1.8, 5, 6] == parent
  350. assert [4, 3, 2, 1.9, 1.8] == child2
  351. assert 1 == len(parent._children)
  352. parent.remove(1.9)
  353. parent.remove(1.8)
  354. assert [1, 4, 3, 2, 5, 6] == parent
  355. assert [4, 3, 2] == child2
  356. parent.reverse()
  357. assert [6, 5, 2, 3, 4, 1] == parent
  358. assert [4, 3, 2] == child2
  359. assert 0 == len(parent._children)