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# From https://raw.githubusercontent.com/python/cpython/master/Lib/test/test_userlist.py
# Licensed under the Python Software Foundation License Version 2.
# Copyright © 2001-2020 Python Software Foundation. All rights reserved.
# Copyright © 2000 BeOpen.com. All rights reserved.
# Copyright © 1995-2000 Corporation for National Research Initiatives. All rights reserved.
# Copyright © 1991-1995 Stichting Mathematisch Centrum. All rights reserved.
# Check every path through every method of UserList
# stdlib
from typing import Sequence, Type, no_type_check
# 3rd party
from coincidence.selectors import not_pypy
# this package
from domdf_python_tools.bases import Lineup, UserList
from tests import list_tests
class TestList(list_tests.CommonTest):
type2test: Type[Sequence] = list
def test_getslice(self):
super().test_getslice()
l = [0, 1, 2, 3, 4]
u = self.type2test(l) # type: ignore
for i in range(-3, 6):
assert u[:i] == l[:i]
assert u[i:] == l[i:]
for j in range(-3, 6):
assert u[i:j] == l[i:j]
def test_slice_type(self):
l = [0, 1, 2, 3, 4]
u = self.type2test(l) # type: ignore
assert u[:] != u.__class__
assert u[:] == u
@not_pypy("Doesn't work on PyPy")
def test_iadd(self):
super().test_iadd()
u = [0, 1]
u += self.type2test([0, 1]) # type: ignore
assert u == [0, 1, 0, 1]
@no_type_check
def test_mixedcmp(self):
u = self.type2test([0, 1])
assert u == [0, 1]
assert u != [0]
assert u != [0, 2]
@no_type_check
def test_mixedadd(self):
u = self.type2test([0, 1])
assert u + [] == u
assert u + [2] == [0, 1, 2]
@no_type_check
def test_userlist_copy(self):
u = self.type2test([6, 8, 1, 9, 1])
v = u.copy()
assert u == v
assert type(u) == type(v) # pylint: disable=unidiomatic-typecheck
class TestUserList(TestList):
type2test: Type[UserList] = UserList
def test_add_specials(self):
u = UserList("spam")
u2 = u + "eggs"
assert u2 == list("spameggs")
def test_radd_specials(self):
u = UserList("eggs")
u2 = "spam" + u
assert u2 == list("spameggs")
u2 = u.__radd__(UserList("spam"))
assert u2 == list("spameggs")
class TestLineup(TestList):
type2test: Type[Lineup] = Lineup
def test_replace(self):
u = self.type2test([-2, -1, 0, 1, 2])
u.replace(2, 3)
assert u[-1] == 3
def test_fluent(self):
u = self.type2test([2, 1, 0, -1, -2])
assert u.sort() is u
assert u == [-2, -1, 0, 1, 2]
assert u.replace(2, 3) is u
assert u == [-2, -1, 0, 1, 3]
assert u.reverse() is u
assert u == [3, 1, 0, -1, -2]
assert u.append(4) is u
assert u == [3, 1, 0, -1, -2, 4]
assert u.insert(0, -3) is u
assert u == [-3, 3, 1, 0, -1, -2, 4]
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