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# Copyright (c) 2008-2009 Aryeh Leib Taurog, http://www.aryehleib.com
# All rights reserved.
#
# Modified from original contribution by Aryeh Leib Taurog, which was
# released under the New BSD license.
import unittest
from django.contrib.gis.geos.mutable_list import ListMixin
class UserListA(ListMixin):
_mytype = tuple
def __init__(self, i_list, *args, **kwargs):
self._list = self._mytype(i_list)
super().__init__(*args, **kwargs)
def __len__(self):
return len(self._list)
def __str__(self):
return str(self._list)
def __repr__(self):
return repr(self._list)
def _set_list(self, length, items):
# this would work:
# self._list = self._mytype(items)
# but then we wouldn't be testing length parameter
itemList = ["x"] * length
for i, v in enumerate(items):
itemList[i] = v
self._list = self._mytype(itemList)
def _get_single_external(self, index):
return self._list[index]
class UserListB(UserListA):
_mytype = list
def _set_single(self, index, value):
self._list[index] = value
def nextRange(length):
nextRange.start += 100
return range(nextRange.start, nextRange.start + length)
nextRange.start = 0
class ListMixinTest(unittest.TestCase):
"""
Tests base class ListMixin by comparing a list clone which is
a ListMixin subclass with a real Python list.
"""
limit = 3
listType = UserListA
def lists_of_len(self, length=None):
if length is None:
length = self.limit
pl = list(range(length))
return pl, self.listType(pl)
def limits_plus(self, b):
return range(-self.limit - b, self.limit + b)
def step_range(self):
return [*range(-1 - self.limit, 0), *range(1, 1 + self.limit)]
def test01_getslice(self):
"Slice retrieval"
pl, ul = self.lists_of_len()
for i in self.limits_plus(1):
self.assertEqual(pl[i:], ul[i:], "slice [%d:]" % (i))
self.assertEqual(pl[:i], ul[:i], "slice [:%d]" % (i))
for j in self.limits_plus(1):
self.assertEqual(pl[i:j], ul[i:j], "slice [%d:%d]" % (i, j))
for k in self.step_range():
self.assertEqual(
pl[i:j:k], ul[i:j:k], "slice [%d:%d:%d]" % (i, j, k)
)
for k in self.step_range():
self.assertEqual(pl[i::k], ul[i::k], "slice [%d::%d]" % (i, k))
self.assertEqual(pl[:i:k], ul[:i:k], "slice [:%d:%d]" % (i, k))
for k in self.step_range():
self.assertEqual(pl[::k], ul[::k], "slice [::%d]" % (k))
def test02_setslice(self):
"Slice assignment"
def setfcn(x, i, j, k, L):
x[i:j:k] = range(L)
pl, ul = self.lists_of_len()
for slen in range(self.limit + 1):
ssl = nextRange(slen)
ul[:] = ssl
pl[:] = ssl
self.assertEqual(pl, ul[:], "set slice [:]")
for i in self.limits_plus(1):
ssl = nextRange(slen)
ul[i:] = ssl
pl[i:] = ssl
self.assertEqual(pl, ul[:], "set slice [%d:]" % (i))
ssl = nextRange(slen)
ul[:i] = ssl
pl[:i] = ssl
self.assertEqual(pl, ul[:], "set slice [:%d]" % (i))
for j in self.limits_plus(1):
ssl = nextRange(slen)
ul[i:j] = ssl
pl[i:j] = ssl
self.assertEqual(pl, ul[:], "set slice [%d:%d]" % (i, j))
for k in self.step_range():
ssl = nextRange(len(ul[i:j:k]))
ul[i:j:k] = ssl
pl[i:j:k] = ssl
self.assertEqual(pl, ul[:], "set slice [%d:%d:%d]" % (i, j, k))
sliceLen = len(ul[i:j:k])
with self.assertRaises(ValueError):
setfcn(ul, i, j, k, sliceLen + 1)
if sliceLen > 2:
with self.assertRaises(ValueError):
setfcn(ul, i, j, k, sliceLen - 1)
for k in self.step_range():
ssl = nextRange(len(ul[i::k]))
ul[i::k] = ssl
pl[i::k] = ssl
self.assertEqual(pl, ul[:], "set slice [%d::%d]" % (i, k))
ssl = nextRange(len(ul[:i:k]))
ul[:i:k] = ssl
pl[:i:k] = ssl
self.assertEqual(pl, ul[:], "set slice [:%d:%d]" % (i, k))
for k in self.step_range():
ssl = nextRange(len(ul[::k]))
ul[::k] = ssl
pl[::k] = ssl
self.assertEqual(pl, ul[:], "set slice [::%d]" % (k))
def test03_delslice(self):
"Delete slice"
for Len in range(self.limit):
pl, ul = self.lists_of_len(Len)
del pl[:]
del ul[:]
self.assertEqual(pl[:], ul[:], "del slice [:]")
for i in range(-Len - 1, Len + 1):
pl, ul = self.lists_of_len(Len)
del pl[i:]
del ul[i:]
self.assertEqual(pl[:], ul[:], "del slice [%d:]" % (i))
pl, ul = self.lists_of_len(Len)
del pl[:i]
del ul[:i]
self.assertEqual(pl[:], ul[:], "del slice [:%d]" % (i))
for j in range(-Len - 1, Len + 1):
pl, ul = self.lists_of_len(Len)
del pl[i:j]
del ul[i:j]
self.assertEqual(pl[:], ul[:], "del slice [%d:%d]" % (i, j))
for k in [*range(-Len - 1, 0), *range(1, Len)]:
pl, ul = self.lists_of_len(Len)
del pl[i:j:k]
del ul[i:j:k]
self.assertEqual(
pl[:], ul[:], "del slice [%d:%d:%d]" % (i, j, k)
)
for k in [*range(-Len - 1, 0), *range(1, Len)]:
pl, ul = self.lists_of_len(Len)
del pl[:i:k]
del ul[:i:k]
self.assertEqual(pl[:], ul[:], "del slice [:%d:%d]" % (i, k))
pl, ul = self.lists_of_len(Len)
del pl[i::k]
del ul[i::k]
self.assertEqual(pl[:], ul[:], "del slice [%d::%d]" % (i, k))
for k in [*range(-Len - 1, 0), *range(1, Len)]:
pl, ul = self.lists_of_len(Len)
del pl[::k]
del ul[::k]
self.assertEqual(pl[:], ul[:], "del slice [::%d]" % (k))
def test04_get_set_del_single(self):
"Get/set/delete single item"
pl, ul = self.lists_of_len()
for i in self.limits_plus(0):
self.assertEqual(pl[i], ul[i], "get single item [%d]" % i)
for i in self.limits_plus(0):
pl, ul = self.lists_of_len()
pl[i] = 100
ul[i] = 100
self.assertEqual(pl[:], ul[:], "set single item [%d]" % i)
for i in self.limits_plus(0):
pl, ul = self.lists_of_len()
del pl[i]
del ul[i]
self.assertEqual(pl[:], ul[:], "del single item [%d]" % i)
def test05_out_of_range_exceptions(self):
"Out of range exceptions"
def setfcn(x, i):
x[i] = 20
def getfcn(x, i):
return x[i]
def delfcn(x, i):
del x[i]
pl, ul = self.lists_of_len()
for i in (-1 - self.limit, self.limit):
with self.assertRaises(IndexError): # 'set index %d' % i)
setfcn(ul, i)
with self.assertRaises(IndexError): # 'get index %d' % i)
getfcn(ul, i)
with self.assertRaises(IndexError): # 'del index %d' % i)
delfcn(ul, i)
def test06_list_methods(self):
"List methods"
pl, ul = self.lists_of_len()
pl.append(40)
ul.append(40)
self.assertEqual(pl[:], ul[:], "append")
pl.extend(range(50, 55))
ul.extend(range(50, 55))
self.assertEqual(pl[:], ul[:], "extend")
pl.reverse()
ul.reverse()
self.assertEqual(pl[:], ul[:], "reverse")
for i in self.limits_plus(1):
pl, ul = self.lists_of_len()
pl.insert(i, 50)
ul.insert(i, 50)
self.assertEqual(pl[:], ul[:], "insert at %d" % i)
for i in self.limits_plus(0):
pl, ul = self.lists_of_len()
self.assertEqual(pl.pop(i), ul.pop(i), "popped value at %d" % i)
self.assertEqual(pl[:], ul[:], "after pop at %d" % i)
pl, ul = self.lists_of_len()
self.assertEqual(pl.pop(), ul.pop(i), "popped value")
self.assertEqual(pl[:], ul[:], "after pop")
pl, ul = self.lists_of_len()
def popfcn(x, i):
x.pop(i)
with self.assertRaises(IndexError):
popfcn(ul, self.limit)
with self.assertRaises(IndexError):
popfcn(ul, -1 - self.limit)
pl, ul = self.lists_of_len()
for val in range(self.limit):
self.assertEqual(pl.index(val), ul.index(val), "index of %d" % val)
for val in self.limits_plus(2):
self.assertEqual(pl.count(val), ul.count(val), "count %d" % val)
for val in range(self.limit):
pl, ul = self.lists_of_len()
pl.remove(val)
ul.remove(val)
self.assertEqual(pl[:], ul[:], "after remove val %d" % val)
def indexfcn(x, v):
return x.index(v)
def removefcn(x, v):
return x.remove(v)
with self.assertRaises(ValueError):
indexfcn(ul, 40)
with self.assertRaises(ValueError):
removefcn(ul, 40)
def test07_allowed_types(self):
"Type-restricted list"
pl, ul = self.lists_of_len()
ul._allowed = int
ul[1] = 50
ul[:2] = [60, 70, 80]
def setfcn(x, i, v):
x[i] = v
with self.assertRaises(TypeError):
setfcn(ul, 2, "hello")
with self.assertRaises(TypeError):
setfcn(ul, slice(0, 3, 2), ("hello", "goodbye"))
def test08_min_length(self):
"Length limits"
pl, ul = self.lists_of_len(5)
ul._minlength = 3
def delfcn(x, i):
del x[:i]
def setfcn(x, i):
x[:i] = []
for i in range(len(ul) - ul._minlength + 1, len(ul)):
with self.assertRaises(ValueError):
delfcn(ul, i)
with self.assertRaises(ValueError):
setfcn(ul, i)
del ul[: len(ul) - ul._minlength]
ul._maxlength = 4
for i in range(0, ul._maxlength - len(ul)):
ul.append(i)
with self.assertRaises(ValueError):
ul.append(10)
def test09_iterable_check(self):
"Error on assigning non-iterable to slice"
pl, ul = self.lists_of_len(self.limit + 1)
def setfcn(x, i, v):
x[i] = v
with self.assertRaises(TypeError):
setfcn(ul, slice(0, 3, 2), 2)
def test10_checkindex(self):
"Index check"
pl, ul = self.lists_of_len()
for i in self.limits_plus(0):
if i < 0:
self.assertEqual(
ul._checkindex(i), i + self.limit, "_checkindex(neg index)"
)
else:
self.assertEqual(ul._checkindex(i), i, "_checkindex(pos index)")
for i in (-self.limit - 1, self.limit):
with self.assertRaises(IndexError):
ul._checkindex(i)
def test_11_sorting(self):
"Sorting"
pl, ul = self.lists_of_len()
pl.insert(0, pl.pop())
ul.insert(0, ul.pop())
pl.sort()
ul.sort()
self.assertEqual(pl[:], ul[:], "sort")
mid = pl[len(pl) // 2]
pl.sort(key=lambda x: (mid - x) ** 2)
ul.sort(key=lambda x: (mid - x) ** 2)
self.assertEqual(pl[:], ul[:], "sort w/ key")
pl.insert(0, pl.pop())
ul.insert(0, ul.pop())
pl.sort(reverse=True)
ul.sort(reverse=True)
self.assertEqual(pl[:], ul[:], "sort w/ reverse")
mid = pl[len(pl) // 2]
pl.sort(key=lambda x: (mid - x) ** 2)
ul.sort(key=lambda x: (mid - x) ** 2)
self.assertEqual(pl[:], ul[:], "sort w/ key")
def test_12_arithmetic(self):
"Arithmetic"
pl, ul = self.lists_of_len()
al = list(range(10, 14))
self.assertEqual(list(pl + al), list(ul + al), "add")
self.assertEqual(type(ul), type(ul + al), "type of add result")
self.assertEqual(list(al + pl), list(al + ul), "radd")
self.assertEqual(type(al), type(al + ul), "type of radd result")
objid = id(ul)
pl += al
ul += al
self.assertEqual(pl[:], ul[:], "in-place add")
self.assertEqual(objid, id(ul), "in-place add id")
for n in (-1, 0, 1, 3):
pl, ul = self.lists_of_len()
self.assertEqual(list(pl * n), list(ul * n), "mul by %d" % n)
self.assertEqual(type(ul), type(ul * n), "type of mul by %d result" % n)
self.assertEqual(list(n * pl), list(n * ul), "rmul by %d" % n)
self.assertEqual(type(ul), type(n * ul), "type of rmul by %d result" % n)
objid = id(ul)
pl *= n
ul *= n
self.assertEqual(pl[:], ul[:], "in-place mul by %d" % n)
self.assertEqual(objid, id(ul), "in-place mul by %d id" % n)
pl, ul = self.lists_of_len()
self.assertEqual(pl, ul, "cmp for equal")
self.assertNotEqual(ul, pl + [2], "cmp for not equal")
self.assertGreaterEqual(pl, ul, "cmp for gte self")
self.assertLessEqual(pl, ul, "cmp for lte self")
self.assertGreaterEqual(ul, pl, "cmp for self gte")
self.assertLessEqual(ul, pl, "cmp for self lte")
self.assertGreater(pl + [5], ul, "cmp")
self.assertGreaterEqual(pl + [5], ul, "cmp")
self.assertLess(pl, ul + [2], "cmp")
self.assertLessEqual(pl, ul + [2], "cmp")
self.assertGreater(ul + [5], pl, "cmp")
self.assertGreaterEqual(ul + [5], pl, "cmp")
self.assertLess(ul, pl + [2], "cmp")
self.assertLessEqual(ul, pl + [2], "cmp")
pl[1] = 20
self.assertGreater(pl, ul, "cmp for gt self")
self.assertLess(ul, pl, "cmp for self lt")
pl[1] = -20
self.assertLess(pl, ul, "cmp for lt self")
self.assertGreater(ul, pl, "cmp for gt self")
class ListMixinTestSingle(ListMixinTest):
listType = UserListB
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