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comparison src/testdir/test_ex_z.vim @ 11303:ef32a5c74515 v8.0.0537

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patch 8.0.0537: illegal memory access with :z and large count commit https://github.com/vim/vim/commit/fa0ad0bb0b4255e64ebcf9269d60a942e0ae7ff9 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Apr 2 15:45:17 2017 +0200 patch 8.0.0537: illegal memory access with :z and large count Problem: Illegal memory access with :z and large count. Solution: Check for number overflow, using long instead of int. (Dominique Pelle, closes #1612)
author Christian Brabandt <cb@256bit.org>
date Sun, 02 Apr 2017 16:00:05 +0200
parents
children 1074f58e1673
comparison
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11302:e3ef35af5a08 11303:ef32a5c74515
1 " Test :z
2
3 func Test_z()
4 call setline(1, range(1, 100))
5
6 let a = execute('20z3')
7 call assert_equal("\n20\n21\n22", a)
8 call assert_equal(22, line('.'))
9 " 'window' should be set to the {count} value.
10 call assert_equal(3, &window)
11
12 " If there is only one window, then twice the amount of 'scroll' is used.
13 set scroll=2
14 let a = execute('20z')
15 call assert_equal("\n20\n21\n22\n23", a)
16 call assert_equal(23, line('.'))
17
18 let a = execute('20z+3')
19 " FIXME: I would expect the same result as '20z3' but it
20 " gives "\n21\n22\n23" instead. Bug in Vim or in ":help :z"?
21 "call assert_equal("\n20\n21\n22", a)
22 "call assert_equal(22, line('.'))
23
24 let a = execute('20z-3')
25 call assert_equal("\n18\n19\n20", a)
26 call assert_equal(20, line('.'))
27
28 let a = execute('20z=3')
29 call assert_match("^\n18\n19\n-\\+\n20\n-\\+\n21\n22$", a)
30 call assert_equal(20, line('.'))
31
32 let a = execute('20z^3')
33 call assert_equal("\n14\n15\n16\n17", a)
34 call assert_equal(17, line('.'))
35
36 let a = execute('20z.3')
37 call assert_equal("\n19\n20\n21", a)
38 call assert_equal(21, line('.'))
39
40 let a = execute('20z#3')
41 call assert_equal("\n 20 20\n 21 21\n 22 22", a)
42 call assert_equal(22, line('.'))
43
44 let a = execute('20z#-3')
45 call assert_equal("\n 18 18\n 19 19\n 20 20", a)
46 call assert_equal(20, line('.'))
47
48 let a = execute('20z#=3')
49 call assert_match("^\n 18 18\n 19 19\n-\\+\n 20 20\n-\\+\n 21 21\n 22 22$", a)
50 call assert_equal(20, line('.'))
51
52 " Test with {count} bigger than the number of lines in buffer.
53 let a = execute('20z1000')
54 call assert_match("^\n20\n21\n.*\n99\n100$", a)
55 call assert_equal(100, line('.'))
56
57 let a = execute('20z-1000')
58 call assert_match("^\n1\n2\n.*\n19\n20$", a)
59 call assert_equal(20, line('.'))
60
61 let a = execute('20z=1000')
62 call assert_match("^\n1\n.*\n-\\+\n20\n-\\\+\n.*\n100$", a)
63 call assert_equal(20, line('.'))
64
65 call assert_fails('20z=a', 'E144:')
66
67 set window& scroll&
68 bw!
69 endfunc
70
71 func Test_z_bug()
72 " This used to access invalid memory as a result of an integer overflow
73 " and freeze vim.
74 normal ox
75 normal Heat
76 z777777776666666
77 ')
78 endfunc