Mercurial > vim
view src/testdir/test_file_size.vim @ 29340:fba9e366ced4 v9.0.0013
patch 9.0.0013: reproducing memory access errors can be difficult
Commit: https://github.com/vim/vim/commit/fa4873ccfc10e0f278dc46f39d00136fab059b19
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Jun 30 22:13:59 2022 +0100
patch 9.0.0013: reproducing memory access errors can be difficult
Problem: Reproducing memory access errors can be difficult.
Solution: When testing, copy each line to allocated memory, so that valgrind
can detect accessing memory before and/or after it. Fix uncovered
problems.
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Thu, 30 Jun 2022 23:15:03 +0200 |
parents | 08940efa6b4e |
children |
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line source
" Inserts 2 million lines with consecutive integers starting from 1 " (essentially, the output of GNU's seq 1 2000000), writes them to Xtest " and writes its cksum to test.out. " " We need 2 million lines to trigger a call to mf_hash_grow(). If it would mess " up the lines the checksum would differ. " " cksum is part of POSIX and so should be available on most Unixes. " If it isn't available then the test will be skipped. source check.vim func Test_File_Size() CheckExecutable cksum new set fileformat=unix undolevels=-1 for i in range(1, 2000000, 100) call append(i, range(i, i + 99)) endfor 1delete w! Xtest let res = systemlist('cksum Xtest')[0] let res = substitute(res, "\r", "", "") call assert_equal('3678979763 14888896 Xtest', res) enew! call delete('Xtest') set fileformat& undolevels& endfunc " Test for writing and reading a file of over 100 Kbyte func Test_File_Read_Write() enew! " Create a file with the following contents " 1 line: "This is the start" " 3001 lines: "This is the leader" " 1 line: "This is the middle" " 3001 lines: "This is the trailer" " 1 line: "This is the end" call append(0, "This is the start") call append(1, repeat(["This is the leader"], 3001)) call append(3002, "This is the middle") call append(3003, repeat(["This is the trailer"], 3001)) call append(6004, "This is the end") write! Xtest enew! edit! Xtest call assert_equal("This is the start", getline(1)) call assert_equal("This is the middle", getline(3003)) call assert_equal("This is the end", getline(6005)) enew! call delete("Xtest") endfunc " vim: shiftwidth=2 sts=2 expandtab