1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
-- $Id: strings.lua,v 1.86 2016/11/07 13:11:28 roberto Exp roberto $
-- See Copyright Notice in file all.lua
print('testing strings and string library')
local maxi, mini = math.maxinteger, math.mininteger
local function checkerror (msg, f, ...)
local s, err = pcall(f, ...)
assert(not s and string.find(err, msg))
end
-- testing string comparisons
assert('alo' < 'alo1')
assert('' < 'a')
assert('alo\0alo' < 'alo\0b')
assert('alo\0alo\0\0' > 'alo\0alo\0')
assert('alo' < 'alo\0')
assert('alo\0' > 'alo')
assert('\0' < '\1')
assert('\0\0' < '\0\1')
assert('\1\0a\0a' <= '\1\0a\0a')
assert(not ('\1\0a\0b' <= '\1\0a\0a'))
assert('\0\0\0' < '\0\0\0\0')
assert(not('\0\0\0\0' < '\0\0\0'))
assert('\0\0\0' <= '\0\0\0\0')
assert(not('\0\0\0\0' <= '\0\0\0'))
assert('\0\0\0' <= '\0\0\0')
assert('\0\0\0' >= '\0\0\0')
assert(not ('\0\0b' < '\0\0a\0'))
-- testing string.sub
assert(string.sub("123456789",2,4) == "234")
assert(string.sub("123456789",7) == "789")
assert(string.sub("123456789",7,6) == "")
assert(string.sub("123456789",7,7) == "7")
assert(string.sub("123456789",0,0) == "")
assert(string.sub("123456789",-10,10) == "123456789")
assert(string.sub("123456789",1,9) == "123456789")
assert(string.sub("123456789",-10,-20) == "")
assert(string.sub("123456789",-1) == "9")
assert(string.sub("123456789",-4) == "6789")
assert(string.sub("123456789",-6, -4) == "456")
assert(string.sub("123456789", mini, -4) == "123456")
assert(string.sub("123456789", mini, maxi) == "123456789")
assert(string.sub("123456789", mini, mini) == "")
assert(string.sub("\000123456789",3,5) == "234")
assert(("\000123456789"):sub(8) == "789")
-- testing string.find
assert(string.find("123456789", "345") == 3)
a,b = string.find("123456789", "345")
assert(string.sub("123456789", a, b) == "345")
assert(string.find("1234567890123456789", "345", 3) == 3)
assert(string.find("1234567890123456789", "345", 4) == 13)
assert(string.find("1234567890123456789", "346", 4) == nil)
assert(string.find("1234567890123456789", ".45", -9) == 13)
assert(string.find("abcdefg", "\0", 5, 1) == nil)
assert(string.find("", "") == 1)
assert(string.find("", "", 1) == 1)
assert(not string.find("", "", 2))
assert(string.find('', 'aaa', 1) == nil)
assert(('alo(.)alo'):find('(.)', 1, 1) == 4)
assert(string.len("") == 0)
assert(string.len("\0\0\0") == 3)
assert(string.len("1234567890") == 10)
assert(#"" == 0)
assert(#"\0\0\0" == 3)
assert(#"1234567890" == 10)
|
