Mercurial > vim
view src/testdir/test_ex_z.vim @ 19364:b7abf45d527b v8.2.0240
patch 8.2.0240: using memory after it was freed
Commit: https://github.com/vim/vim/commit/408030e8d053fe1c871b2fc366363a30ed98c889
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Feb 10 22:44:32 2020 +0100
patch 8.2.0240: using memory after it was freed
Problem: Using memory after it was freed. (Dominique Pelle)
Solution: Do not mix converion buffer with other buffer.
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Mon, 10 Feb 2020 22:45:04 +0100 |
parents | 1074f58e1673 |
children | 08940efa6b4e |
line wrap: on
line source
" Test :z func Test_z() call setline(1, range(1, 100)) let a = execute('20z3') call assert_equal("\n20\n21\n22", a) call assert_equal(22, line('.')) " 'window' should be set to the {count} value. call assert_equal(3, &window) " If there is only one window, then twice the amount of 'scroll' is used. set scroll=2 let a = execute('20z') call assert_equal("\n20\n21\n22\n23", a) call assert_equal(23, line('.')) let a = execute('20z+3') " FIXME: I would expect the same result as '20z3' but it " gives "\n21\n22\n23" instead. Bug in Vim or in ":help :z"? "call assert_equal("\n20\n21\n22", a) "call assert_equal(22, line('.')) let a = execute('20z-3') call assert_equal("\n18\n19\n20", a) call assert_equal(20, line('.')) let a = execute('20z=3') call assert_match("^\n18\n19\n-\\+\n20\n-\\+\n21\n22$", a) call assert_equal(20, line('.')) let a = execute('20z^3') call assert_equal("\n14\n15\n16\n17", a) call assert_equal(17, line('.')) let a = execute('20z.3') call assert_equal("\n19\n20\n21", a) call assert_equal(21, line('.')) let a = execute('20z#3') call assert_equal("\n 20 20\n 21 21\n 22 22", a) call assert_equal(22, line('.')) let a = execute('20z#-3') call assert_equal("\n 18 18\n 19 19\n 20 20", a) call assert_equal(20, line('.')) let a = execute('20z#=3') call assert_match("^\n 18 18\n 19 19\n-\\+\n 20 20\n-\\+\n 21 21\n 22 22$", a) call assert_equal(20, line('.')) " Test with {count} bigger than the number of lines in buffer. let a = execute('20z1000') call assert_match("^\n20\n21\n.*\n99\n100$", a) call assert_equal(100, line('.')) let a = execute('20z-1000') call assert_match("^\n1\n2\n.*\n19\n20$", a) call assert_equal(20, line('.')) let a = execute('20z=1000') call assert_match("^\n1\n.*\n-\\+\n20\n-\\\+\n.*\n100$", a) call assert_equal(20, line('.')) call assert_fails('20z=a', 'E144:') set window& scroll& bw! endfunc func Test_z_overflow() " This used to access invalid memory as a result of an integer overflow " and freeze vim. normal ox normal Heat z777777776666666 ') endfunc func Test_z_negative_lnum() new z^ call assert_equal(1, line('.')) bwipe! endfunc