Mercurial > vim
view src/testdir/test_flatten.vim @ 33776:9503dc55b5ed v9.0.2108
patch 9.0.2108: [security]: overflow with count for :s command
Commit: https://github.com/vim/vim/commit/ac63787734fda2e294e477af52b3bd601517fa78
Author: Christian Brabandt <cb@256bit.org>
Date: Tue Nov 14 20:45:48 2023 +0100
patch 9.0.2108: [security]: overflow with count for :s command
Problem: [security]: overflow with count for :s command
Solution: Abort the :s command if the count is too large
If the count after the :s command is larger than what fits into a
(signed) long variable, abort with e_value_too_large.
Adds a test with INT_MAX as count and verify it correctly fails.
It seems the return value on Windows using mingw compiler wraps around,
so the initial test using :s/./b/9999999999999999999999999990 doesn't
fail there, since the count is wrapping around several times and finally
is no longer larger than 2147483647. So let's just use 2147483647 in the
test, which hopefully will always cause a failure
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 16 Nov 2023 22:15:10 +0100 |
parents | 18319c0c36f9 |
children |
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" Test for flatting list. func Test_flatten() call assert_fails('call flatten(1)', 'E686:') call assert_fails('call flatten({})', 'E686:') call assert_fails('call flatten("string")', 'E686:') call assert_fails('call flatten([], [])', 'E745:') call assert_fails('call flatten([], -1)', 'E900: maxdepth') call assert_equal([], flatten([])) call assert_equal([], flatten([[]])) call assert_equal([], flatten([[[]]])) call assert_equal([1, 2, 3], flatten([1, 2, 3])) call assert_equal([1, 2, 3], flatten([[1], 2, 3])) call assert_equal([1, 2, 3], flatten([1, [2], 3])) call assert_equal([1, 2, 3], flatten([1, 2, [3]])) call assert_equal([1, 2, 3], flatten([[1], [2], 3])) call assert_equal([1, 2, 3], flatten([1, [2], [3]])) call assert_equal([1, 2, 3], flatten([[1], 2, [3]])) call assert_equal([1, 2, 3], flatten([[1], [2], [3]])) call assert_equal([1, 2, 3], flatten([[1, 2, 3], []])) call assert_equal([1, 2, 3], flatten([[], [1, 2, 3]])) call assert_equal([1, 2, 3], flatten([[1, 2], [], [3]])) call assert_equal([1, 2, 3], flatten([[], [1, 2, 3], []])) call assert_equal([1, 2, 3, 4], flatten(range(1, 4))) " example in the help call assert_equal([1, 2, 3, 4, 5], flatten([1, [2, [3, 4]], 5])) call assert_equal([1, 2, [3, 4], 5], flatten([1, [2, [3, 4]], 5], 1)) call assert_equal([0, [1], 2, [3], 4], flatten([[0, [1]], 2, [[3], 4]], 1)) call assert_equal([1, 2, 3], flatten([[[[1]]], [2], [3]], 3)) call assert_equal([[1], [2], [3]], flatten([[[1], [2], [3]]], 1)) call assert_equal([[1]], flatten([[1]], 0)) " Make it flatten if the given maxdepth is larger than actual depth. call assert_equal([1, 2, 3], flatten([[1, 2, 3]], 1)) call assert_equal([1, 2, 3], flatten([[1, 2, 3]], 2)) let l:list = [[1], [2], [3]] call assert_equal([1, 2, 3], flatten(l:list)) call assert_equal([1, 2, 3], l:list) " Tests for checking reference counter works well. let l:x = {'foo': 'bar'} call assert_equal([1, 2, l:x, 3], flatten([1, [2, l:x], 3])) call test_garbagecollect_now() call assert_equal('bar', l:x.foo) let l:list = [[1], [2], [3]] call assert_equal([1, 2, 3], flatten(l:list)) call test_garbagecollect_now() call assert_equal([1, 2, 3], l:list) " Tests for checking circular reference list can be flattened. let l:x = [1] let l:y = [x] let l:z = flatten(l:y) call assert_equal([1], l:z) call test_garbagecollect_now() let l:x[0] = 2 call assert_equal([2], l:x) call assert_equal([1], l:z) " NOTE: primitive types are copied. call assert_equal([1], l:y) let l:x = [2] let l:y = [1, [l:x], 3] " [1, [[2]], 3] let l:z = flatten(l:y, 1) call assert_equal([1, [2], 3], l:z) let l:x[0] = 9 call assert_equal([1, [9], 3], l:z) " Reference to l:x is kept. call assert_equal([1, [9], 3], l:y) let l:x = [1] let l:y = [2] call add(x, y) " l:x = [1, [2]] call add(y, x) " l:y = [2, [1, [...]]] call assert_equal([1, 2, 1, 2], flatten(l:x, 2)) call assert_equal([2, l:x], l:y) let l4 = [ 1, [ 11, [ 101, [ 1001 ] ] ] ] call assert_equal(l4, flatten(deepcopy(l4), 0)) call assert_equal([1, 11, [101, [1001]]], flatten(deepcopy(l4), 1)) call assert_equal([1, 11, 101, [1001]], flatten(deepcopy(l4), 2)) call assert_equal([1, 11, 101, 1001], flatten(deepcopy(l4), 3)) call assert_equal([1, 11, 101, 1001], flatten(deepcopy(l4), 4)) call assert_equal([1, 11, 101, 1001], flatten(deepcopy(l4))) endfunc func Test_flattennew() let l = [1, [2, [3, 4]], 5] call assert_equal([1, 2, 3, 4, 5], flattennew(l)) call assert_equal([1, [2, [3, 4]], 5], l) call assert_equal([1, 2, [3, 4], 5], flattennew(l, 1)) call assert_equal([1, [2, [3, 4]], 5], l) let l4 = [ 1, [ 11, [ 101, [ 1001 ] ] ] ] call assert_equal(l4, flatten(deepcopy(l4), 0)) call assert_equal([1, 11, [101, [1001]]], flattennew(l4, 1)) call assert_equal([1, 11, 101, [1001]], flattennew(l4, 2)) call assert_equal([1, 11, 101, 1001], flattennew(l4, 3)) call assert_equal([1, 11, 101, 1001], flattennew(l4, 4)) call assert_equal([1, 11, 101, 1001], flattennew(l4)) endfunc " vim: shiftwidth=2 sts=2 expandtab