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test_smart_list.py
416 lines (356 loc) · 16.3 KB
/
test_smart_list.py
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# -*- coding: utf-8 -*-
#
# Copyright (C) 2012-2015 Ben Kurtovic <ben.kurtovic@gmail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from __future__ import unicode_literals
try:
import unittest2 as unittest
except ImportError:
import unittest
from mwparserfromhell.compat import py3k, range
from mwparserfromhell.smart_list import SmartList, _ListProxy
class TestSmartList(unittest.TestCase):
"""Test cases for the SmartList class and its child, _ListProxy."""
def _test_get_set_del_item(self, builder):
"""Run tests on __get/set/delitem__ of a list built with *builder*."""
def assign(L, s1, s2, s3, val):
L[s1:s2:s3] = val
def delete(L, s1):
del L[s1]
list1 = builder([0, 1, 2, 3, "one", "two"])
list2 = builder(list(range(10)))
self.assertEqual(1, list1[1])
self.assertEqual("one", list1[-2])
self.assertEqual([2, 3], list1[2:4])
self.assertRaises(IndexError, lambda: list1[6])
self.assertRaises(IndexError, lambda: list1[-7])
self.assertEqual([0, 1, 2], list1[:3])
self.assertEqual([0, 1, 2, 3, "one", "two"], list1[:])
self.assertEqual([3, "one", "two"], list1[3:])
self.assertEqual(["one", "two"], list1[-2:])
self.assertEqual([0, 1], list1[:-4])
self.assertEqual([], list1[6:])
self.assertEqual([], list1[4:2])
self.assertEqual([0, 2, "one"], list1[0:5:2])
self.assertEqual([0, 2], list1[0:-3:2])
self.assertEqual([0, 1, 2, 3, "one", "two"], list1[::])
self.assertEqual([2, 3, "one", "two"], list1[2::])
self.assertEqual([0, 1, 2, 3], list1[:4:])
self.assertEqual([2, 3], list1[2:4:])
self.assertEqual([0, 2, 4, 6, 8], list2[::2])
self.assertEqual([2, 5, 8], list2[2::3])
self.assertEqual([0, 3], list2[:6:3])
self.assertEqual([2, 5, 8], list2[-8:9:3])
self.assertEqual([], list2[100000:1000:-100])
list1[3] = 100
self.assertEqual(100, list1[3])
list1[-3] = 101
self.assertEqual([0, 1, 2, 101, "one", "two"], list1)
list1[5:] = [6, 7, 8]
self.assertEqual([6, 7, 8], list1[5:])
self.assertEqual([0, 1, 2, 101, "one", 6, 7, 8], list1)
list1[2:4] = [-1, -2, -3, -4, -5]
self.assertEqual([0, 1, -1, -2, -3, -4, -5, "one", 6, 7, 8], list1)
list1[0:-3] = [99]
self.assertEqual([99, 6, 7, 8], list1)
list2[0:6:2] = [100, 102, 104]
self.assertEqual([100, 1, 102, 3, 104, 5, 6, 7, 8, 9], list2)
list2[::3] = [200, 203, 206, 209]
self.assertEqual([200, 1, 102, 203, 104, 5, 206, 7, 8, 209], list2)
list2[::] = range(7)
self.assertEqual([0, 1, 2, 3, 4, 5, 6], list2)
self.assertRaises(ValueError, assign, list2, 0, 5, 2,
[100, 102, 104, 106])
with self.assertRaises(IndexError):
list2[7] = "foo"
with self.assertRaises(IndexError):
list2[-8] = "foo"
del list2[2]
self.assertEqual([0, 1, 3, 4, 5, 6], list2)
del list2[-3]
self.assertEqual([0, 1, 3, 5, 6], list2)
self.assertRaises(IndexError, delete, list2, 100)
self.assertRaises(IndexError, delete, list2, -6)
list2[:] = range(10)
del list2[3:6]
self.assertEqual([0, 1, 2, 6, 7, 8, 9], list2)
del list2[-2:]
self.assertEqual([0, 1, 2, 6, 7], list2)
del list2[:2]
self.assertEqual([2, 6, 7], list2)
list2[:] = range(10)
del list2[2:8:2]
self.assertEqual([0, 1, 3, 5, 7, 8, 9], list2)
def _test_add_radd_iadd(self, builder):
"""Run tests on __r/i/add__ of a list built with *builder*."""
list1 = builder(range(5))
list2 = builder(range(5, 10))
self.assertEqual([0, 1, 2, 3, 4, 5, 6], list1 + [5, 6])
self.assertEqual([0, 1, 2, 3, 4], list1)
self.assertEqual(list(range(10)), list1 + list2)
self.assertEqual([-2, -1, 0, 1, 2, 3, 4], [-2, -1] + list1)
self.assertEqual([0, 1, 2, 3, 4], list1)
list1 += ["foo", "bar", "baz"]
self.assertEqual([0, 1, 2, 3, 4, "foo", "bar", "baz"], list1)
def _test_other_magic_methods(self, builder):
"""Run tests on other magic methods of a list built with *builder*."""
list1 = builder([0, 1, 2, 3, "one", "two"])
list2 = builder([])
list3 = builder([0, 2, 3, 4])
list4 = builder([0, 1, 2])
if py3k:
self.assertEqual("[0, 1, 2, 3, 'one', 'two']", str(list1))
self.assertEqual(b"\x00\x01\x02", bytes(list4))
self.assertEqual("[0, 1, 2, 3, 'one', 'two']", repr(list1))
else:
self.assertEqual("[0, 1, 2, 3, u'one', u'two']", unicode(list1))
self.assertEqual(b"[0, 1, 2, 3, u'one', u'two']", str(list1))
self.assertEqual(b"[0, 1, 2, 3, u'one', u'two']", repr(list1))
self.assertTrue(list1 < list3)
self.assertTrue(list1 <= list3)
self.assertFalse(list1 == list3)
self.assertTrue(list1 != list3)
self.assertFalse(list1 > list3)
self.assertFalse(list1 >= list3)
other1 = [0, 2, 3, 4]
self.assertTrue(list1 < other1)
self.assertTrue(list1 <= other1)
self.assertFalse(list1 == other1)
self.assertTrue(list1 != other1)
self.assertFalse(list1 > other1)
self.assertFalse(list1 >= other1)
other2 = [0, 0, 1, 2]
self.assertFalse(list1 < other2)
self.assertFalse(list1 <= other2)
self.assertFalse(list1 == other2)
self.assertTrue(list1 != other2)
self.assertTrue(list1 > other2)
self.assertTrue(list1 >= other2)
other3 = [0, 1, 2, 3, "one", "two"]
self.assertFalse(list1 < other3)
self.assertTrue(list1 <= other3)
self.assertTrue(list1 == other3)
self.assertFalse(list1 != other3)
self.assertFalse(list1 > other3)
self.assertTrue(list1 >= other3)
self.assertTrue(bool(list1))
self.assertFalse(bool(list2))
self.assertEqual(6, len(list1))
self.assertEqual(0, len(list2))
out = []
for obj in list1:
out.append(obj)
self.assertEqual([0, 1, 2, 3, "one", "two"], out)
out = []
for ch in list2:
out.append(ch)
self.assertEqual([], out)
gen1 = iter(list1)
out = []
for i in range(len(list1)):
out.append(next(gen1))
self.assertRaises(StopIteration, next, gen1)
self.assertEqual([0, 1, 2, 3, "one", "two"], out)
gen2 = iter(list2)
self.assertRaises(StopIteration, next, gen2)
self.assertEqual(["two", "one", 3, 2, 1, 0], list(reversed(list1)))
self.assertEqual([], list(reversed(list2)))
self.assertTrue("one" in list1)
self.assertTrue(3 in list1)
self.assertFalse(10 in list1)
self.assertFalse(0 in list2)
self.assertEqual([], list2 * 5)
self.assertEqual([], 5 * list2)
self.assertEqual([0, 1, 2, 0, 1, 2, 0, 1, 2], list4 * 3)
self.assertEqual([0, 1, 2, 0, 1, 2, 0, 1, 2], 3 * list4)
list4 *= 2
self.assertEqual([0, 1, 2, 0, 1, 2], list4)
def _test_list_methods(self, builder):
"""Run tests on the public methods of a list built with *builder*."""
list1 = builder(range(5))
list2 = builder(["foo"])
list3 = builder([("a", 5), ("d", 2), ("b", 8), ("c", 3)])
list1.append(5)
list1.append(1)
list1.append(2)
self.assertEqual([0, 1, 2, 3, 4, 5, 1, 2], list1)
self.assertEqual(0, list1.count(6))
self.assertEqual(2, list1.count(1))
list1.extend(range(5, 8))
self.assertEqual([0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7], list1)
self.assertEqual(1, list1.index(1))
self.assertEqual(6, list1.index(1, 3))
self.assertEqual(6, list1.index(1, 3, 7))
self.assertRaises(ValueError, list1.index, 1, 3, 5)
list1.insert(0, -1)
self.assertEqual([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 7], list1)
list1.insert(-1, 6.5)
self.assertEqual([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7], list1)
list1.insert(13, 8)
self.assertEqual([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5, 7, 8], list1)
self.assertEqual(8, list1.pop())
self.assertEqual(7, list1.pop())
self.assertEqual([-1, 0, 1, 2, 3, 4, 5, 1, 2, 5, 6, 6.5], list1)
self.assertEqual(-1, list1.pop(0))
self.assertEqual(5, list1.pop(5))
self.assertEqual(6.5, list1.pop(-1))
self.assertEqual([0, 1, 2, 3, 4, 1, 2, 5, 6], list1)
self.assertEqual("foo", list2.pop())
self.assertRaises(IndexError, list2.pop)
self.assertEqual([], list2)
list1.remove(6)
self.assertEqual([0, 1, 2, 3, 4, 1, 2, 5], list1)
list1.remove(1)
self.assertEqual([0, 2, 3, 4, 1, 2, 5], list1)
list1.remove(1)
self.assertEqual([0, 2, 3, 4, 2, 5], list1)
self.assertRaises(ValueError, list1.remove, 1)
list1.reverse()
self.assertEqual([5, 2, 4, 3, 2, 0], list1)
list1.sort()
self.assertEqual([0, 2, 2, 3, 4, 5], list1)
list1.sort(reverse=True)
self.assertEqual([5, 4, 3, 2, 2, 0], list1)
if not py3k:
func = lambda x, y: abs(3 - x) - abs(3 - y) # Distance from 3
list1.sort(cmp=func)
self.assertEqual([3, 4, 2, 2, 5, 0], list1)
list1.sort(cmp=func, reverse=True)
self.assertEqual([0, 5, 4, 2, 2, 3], list1)
list3.sort(key=lambda i: i[1])
self.assertEqual([("d", 2), ("c", 3), ("a", 5), ("b", 8)], list3)
list3.sort(key=lambda i: i[1], reverse=True)
self.assertEqual([("b", 8), ("a", 5), ("c", 3), ("d", 2)], list3)
def _dispatch_test_for_children(self, meth):
"""Run a test method on various different types of children."""
meth(lambda L: SmartList(list(L))[:])
meth(lambda L: SmartList([999] + list(L))[1:])
meth(lambda L: SmartList(list(L) + [999])[:-1])
meth(lambda L: SmartList([101, 102] + list(L) + [201, 202])[2:-2])
def test_docs(self):
"""make sure the methods of SmartList/_ListProxy have docstrings"""
methods = ["append", "count", "extend", "index", "insert", "pop",
"remove", "reverse", "sort"]
for meth in methods:
expected = getattr(list, meth).__doc__
smartlist_doc = getattr(SmartList, meth).__doc__
listproxy_doc = getattr(_ListProxy, meth).__doc__
self.assertEqual(expected, smartlist_doc)
self.assertEqual(expected, listproxy_doc)
def test_doctest(self):
"""make sure the test embedded in SmartList's docstring passes"""
parent = SmartList([0, 1, 2, 3])
self.assertEqual([0, 1, 2, 3], parent)
child = parent[2:]
self.assertEqual([2, 3], child)
child.append(4)
self.assertEqual([2, 3, 4], child)
self.assertEqual([0, 1, 2, 3, 4], parent)
def test_parent_get_set_del(self):
"""make sure SmartList's getitem/setitem/delitem work"""
self._test_get_set_del_item(SmartList)
def test_parent_add(self):
"""make sure SmartList's add/radd/iadd work"""
self._test_add_radd_iadd(SmartList)
def test_parent_other_magics(self):
"""make sure SmartList's other magically implemented features work"""
self._test_other_magic_methods(SmartList)
def test_parent_methods(self):
"""make sure SmartList's non-magic methods work, like append()"""
self._test_list_methods(SmartList)
def test_child_get_set_del(self):
"""make sure _ListProxy's getitem/setitem/delitem work"""
self._dispatch_test_for_children(self._test_get_set_del_item)
def test_child_add(self):
"""make sure _ListProxy's add/radd/iadd work"""
self._dispatch_test_for_children(self._test_add_radd_iadd)
def test_child_other_magics(self):
"""make sure _ListProxy's other magically implemented features work"""
self._dispatch_test_for_children(self._test_other_magic_methods)
def test_child_methods(self):
"""make sure _ListProxy's non-magic methods work, like append()"""
self._dispatch_test_for_children(self._test_list_methods)
def test_influence(self):
"""make sure changes are propagated from parents to children"""
parent = SmartList([0, 1, 2, 3, 4, 5])
child1 = parent[2:]
child2 = parent[2:5]
self.assertEqual([0, 1, 2, 3, 4, 5], parent)
self.assertEqual([2, 3, 4, 5], child1)
self.assertEqual([2, 3, 4], child2)
self.assertEqual(2, len(parent._children))
parent.append(6)
child1.append(7)
child2.append(4.5)
self.assertEqual([0, 1, 2, 3, 4, 4.5, 5, 6, 7], parent)
self.assertEqual([2, 3, 4, 4.5, 5, 6, 7], child1)
self.assertEqual([2, 3, 4, 4.5], child2)
parent.insert(0, -1)
parent.insert(4, 2.5)
parent.insert(10, 6.5)
self.assertEqual([-1, 0, 1, 2, 2.5, 3, 4, 4.5, 5, 6, 6.5, 7], parent)
self.assertEqual([2, 2.5, 3, 4, 4.5, 5, 6, 6.5, 7], child1)
self.assertEqual([2, 2.5, 3, 4, 4.5], child2)
self.assertEqual(7, parent.pop())
self.assertEqual(6.5, child1.pop())
self.assertEqual(4.5, child2.pop())
self.assertEqual([-1, 0, 1, 2, 2.5, 3, 4, 5, 6], parent)
self.assertEqual([2, 2.5, 3, 4, 5, 6], child1)
self.assertEqual([2, 2.5, 3, 4], child2)
parent.remove(-1)
child1.remove(2.5)
self.assertEqual([0, 1, 2, 3, 4, 5, 6], parent)
self.assertEqual([2, 3, 4, 5, 6], child1)
self.assertEqual([2, 3, 4], child2)
self.assertEqual(0, parent.pop(0))
self.assertEqual([1, 2, 3, 4, 5, 6], parent)
self.assertEqual([2, 3, 4, 5, 6], child1)
self.assertEqual([2, 3, 4], child2)
child2.reverse()
self.assertEqual([1, 4, 3, 2, 5, 6], parent)
self.assertEqual([4, 3, 2, 5, 6], child1)
self.assertEqual([4, 3, 2], child2)
parent.extend([7, 8])
child1.extend([8.1, 8.2])
child2.extend([1.9, 1.8])
self.assertEqual([1, 4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], parent)
self.assertEqual([4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], child1)
self.assertEqual([4, 3, 2, 1.9, 1.8], child2)
child1.detach()
self.assertEqual([1, 4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], parent)
self.assertEqual([4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], child1)
self.assertEqual([4, 3, 2, 1.9, 1.8], child2)
self.assertEqual(1, len(parent._children))
parent.remove(1.9)
parent.remove(1.8)
self.assertEqual([1, 4, 3, 2, 5, 6, 7, 8, 8.1, 8.2], parent)
self.assertEqual([4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], child1)
self.assertEqual([4, 3, 2], child2)
parent.reverse()
self.assertEqual([8.2, 8.1, 8, 7, 6, 5, 2, 3, 4, 1], parent)
self.assertEqual([4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], child1)
self.assertEqual([4, 3, 2], child2)
self.assertEqual(0, len(parent._children))
child2.detach()
self.assertEqual([8.2, 8.1, 8, 7, 6, 5, 2, 3, 4, 1], parent)
self.assertEqual([4, 3, 2, 1.9, 1.8, 5, 6, 7, 8, 8.1, 8.2], child1)
self.assertEqual([4, 3, 2], child2)
if __name__ == "__main__":
unittest.main(verbosity=2)