xref: /freebsd/sys/contrib/openzfs/tests/zfs-tests/tests/functional/channel_program/lua_core/tst.lib_strings.lua (revision 61145dc2b94f12f6a47344fb9aac702321880e43) 
1--SPDX-License-Identifier: MIT
2--[[
3--*****************************************************************************
4--* Copyright (C) 1994-2016 Lua.org, PUC-Rio.
5--*
6--* Permission is hereby granted, free of charge, to any person obtaining
7--* a copy of this software and associated documentation files (the
8--* "Software"), to deal in the Software without restriction, including
9--* without limitation the rights to use, copy, modify, merge, publish,
10--* distribute, sublicense, and/or sell copies of the Software, and to
11--* permit persons to whom the Software is furnished to do so, subject to
12--* the following conditions:
13--*
14--* The above copyright notice and this permission notice shall be
15--* included in all copies or substantial portions of the Software.
16--*
17--* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18--* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19--* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20--* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
21--* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22--* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23--* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24--*****************************************************************************
25--]]
26
27-- testing string library
28
29local maxi, mini = 0x7fffffffffffffff, 0x8000000000000000
30
31-- testing string.sub
32assert(string.sub("123456789",2,4) == "234")
33assert(string.sub("123456789",7) == "789")
34assert(string.sub("123456789",7,6) == "")
35assert(string.sub("123456789",7,7) == "7")
36assert(string.sub("123456789",0,0) == "")
37assert(string.sub("123456789",-10,10) == "123456789")
38assert(string.sub("123456789",1,9) == "123456789")
39assert(string.sub("123456789",-10,-20) == "")
40assert(string.sub("123456789",-1) == "9")
41assert(string.sub("123456789",-4) == "6789")
42assert(string.sub("123456789",-6, -4) == "456")
43assert(string.sub("123456789", mini, -4) == "123456")
44assert(string.sub("123456789", mini, maxi) == "123456789")
45assert(string.sub("123456789", mini, mini) == "")
46assert(string.sub("\000123456789",3,5) == "234")
47assert(("\000123456789"):sub(8) == "789")
48
49-- testing string.find
50assert(string.find("123456789", "345") == 3)
51a,b = string.find("123456789", "345")
52assert(string.sub("123456789", a, b) == "345")
53assert(string.find("1234567890123456789", "345", 3) == 3)
54assert(string.find("1234567890123456789", "345", 4) == 13)
55assert(string.find("1234567890123456789", "346", 4) == nil)
56assert(string.find("1234567890123456789", ".45", -9) == 13)
57assert(string.find("abcdefg", "\0", 5, 1) == nil)
58assert(string.find("", "") == 1)
59assert(string.find("", "", 1) == 1)
60assert(not string.find("", "", 2))
61assert(string.find('', 'aaa', 1) == nil)
62assert(('alo(.)alo'):find('(.)', 1, 1) == 4)
63
64assert(string.len("") == 0)
65assert(string.len("\0\0\0") == 3)
66assert(string.len("1234567890") == 10)
67
68assert(#"" == 0)
69assert(#"\0\0\0" == 3)
70assert(#"1234567890" == 10)
71
72-- testing string.byte/string.char
73assert(string.byte("a") == 97)
74assert(string.byte("\xe4") > 127)
75assert(string.byte(string.char(255)) == 255)
76assert(string.byte(string.char(0)) == 0)
77assert(string.byte("\0") == 0)
78assert(string.byte("\0\0alo\0x", -1) == string.byte('x'))
79assert(string.byte("ba", 2) == 97)
80assert(string.byte("\n\n", 2, -1) == 10)
81assert(string.byte("\n\n", 2, 2) == 10)
82assert(string.byte("") == nil)
83assert(string.byte("hi", -3) == nil)
84assert(string.byte("hi", 3) == nil)
85assert(string.byte("hi", 9, 10) == nil)
86assert(string.byte("hi", 2, 1) == nil)
87assert(string.char() == "")
88assert(string.char(0, 255, 0) == "\0\255\0")
89assert(string.char(0, string.byte("\xe4"), 0) == "\0\xe4\0")
90assert(string.char(string.byte("\xe4l\0\195\179u", 1, -1)) == "\xe4l\0\195\179u")
91assert(string.char(string.byte("\xe4l\0\195\179u", 1, 0)) == "")
92assert(string.char(string.byte("\xe4l\0\195\179u", -10, 100)) == "\xe4l\0\195\179u")
93
94assert(string.upper("ab\0c") == "AB\0C")
95assert(string.lower("\0ABCc%$") == "\0abcc%$")
96assert(string.rep('teste', 0) == '')
97assert(string.rep('t\195\169s\00t\195\170', 2) == 't\195\169s\0t\195\170t\195\169s\000t\195\170')
98assert(string.rep('', 10) == '')
99
100-- repetitions with separator
101assert(string.rep('teste', 0, 'xuxu') == '')
102assert(string.rep('teste', 1, 'xuxu') == 'teste')
103assert(string.rep('\1\0\1', 2, '\0\0') == '\1\0\1\0\0\1\0\1')
104assert(string.rep('', 10, '.') == string.rep('.', 9))
105
106assert(string.reverse"" == "")
107assert(string.reverse"\0\1\2\3" == "\3\2\1\0")
108assert(string.reverse"\0001234" == "4321\0")
109
110for i=0,30 do assert(string.len(string.rep('a', i)) == i) end
111
112
113x = '"\195\174lo"\n\\'
114assert(string.format('%q%s', x, x) == '"\\"\195\174lo\\"\\\n\\\\""\195\174lo"\n\\')
115assert(string.format('%q', "\0") == [["\0"]])
116x = "\0\1\0023\5\0009"
117assert(string.format("\0%c\0%c%x\0", string.byte("\xe4"), string.byte("b"), 140) ==
118              "\0\xe4\0b8c\0")
119assert(string.format('') == "")
120assert(string.format("%c",34)..string.format("%c",48)..string.format("%c",90)..string.format("%c",100) ==
121       string.format("%c%c%c%c", 34, 48, 90, 100))
122assert(string.format("%s\0 is not \0%s", 'not be', 'be') == 'not be\0 is not \0be')
123assert(string.format("%%%d %010d", 10, 23) == "%10 0000000023")
124x = string.format('"%-50s"', 'a')
125assert(#x == 52)
126assert(string.sub(x, 1, 4) == '"a  ')
127
128assert(string.format("-%.20s.20s", string.rep("%", 2000)) ==
129                     "-"..string.rep("%", 20)..".20s")
130assert(string.format('"-%20s.20s"', string.rep("%", 2000)) ==
131       string.format("%q", "-"..string.rep("%", 2000)..".20s"))
132
133-- format x tostring
134assert(string.format("%s %s", nil, true) == "nil true")
135assert(string.format("%s %.4s", false, true) == "false true")
136assert(string.format("%.3s %.3s", false, true) == "fal tru")
137
138
139-- testing large numbers for format
140do
141  local max, min = 0x7fffffff, -0x80000000    -- "large" for 32 bits
142  assert(string.sub(string.format("%8x", -1), -8) == "ffffffff")
143  assert(string.format("%x", max) == "7fffffff")
144  assert(string.sub(string.format("%x", min), -8) == "80000000")
145  assert(string.format("%d", max) ==  "2147483647")
146  assert(string.format("%d", min) == "-2147483648")
147  assert(string.format("%u", 0xffffffff) == "4294967295")
148  assert(string.format("%o", 0xABCD) == "125715")
149
150  max, min = 0x7fffffffffffffff, -0x8000000000000000
151  assert(string.format("0x%8X", 0x8f000003) == "0x8F000003")
152  assert(string.format("%d", 2^53) == "9007199254740992")
153  assert(string.format("%x", max) == "7fffffffffffffff")
154  assert(string.format("%x", min) == "8000000000000000")
155  assert(string.format("%d", max) ==  "9223372036854775807")
156  assert(string.format("%d", min) == "-9223372036854775808")
157end
158
159
160assert(table.concat{} == "")
161assert(table.concat({}, 'x') == "")
162assert(table.concat({'\0', '\0\1', '\0\1\2'}, '.\0.') == "\0.\0.\0\1.\0.\0\1\2")
163local a = {}; for i=1,300 do a[i] = "xuxu" end
164assert(table.concat(a, "123").."123" == string.rep("xuxu123", 300))
165assert(table.concat(a, "b", 20, 20) == "xuxu")
166assert(table.concat(a, "", 20, 21) == "xuxuxuxu")
167assert(table.concat(a, "x", 22, 21) == "")
168assert(table.concat(a, "3", 299) == "xuxu3xuxu")
169assert(table.concat({}, "x", 2^31-1, 2^31-2) == "")
170assert(table.concat({}, "x", -2^31+1, -2^31) == "")
171assert(table.concat({}, "x", 2^31-1, -2^31) == "")
172assert(table.concat({[2^31-1] = "alo"}, "x", 2^31-1, 2^31-1) == "alo")
173
174a = {"a","b","c"}
175assert(table.concat(a, ",", 1, 0) == "")
176assert(table.concat(a, ",", 1, 1) == "a")
177assert(table.concat(a, ",", 1, 2) == "a,b")
178assert(table.concat(a, ",", 2) == "b,c")
179assert(table.concat(a, ",", 3) == "c")
180assert(table.concat(a, ",", 4) == "")
181
182
183-- tests for gmatch
184local a = 0
185for i in string.gmatch('abcde', '()') do assert(i == a+1); a=i end
186assert(a==6)
187
188t = {n=0}
189for w in string.gmatch("first second word", "%w+") do
190      t.n=t.n+1; t[t.n] = w
191end
192assert(t[1] == "first" and t[2] == "second" and t[3] == "word")
193
194t = {3, 6, 9}
195for i in string.gmatch ("xuxx uu ppar r", "()(.)%2") do
196  assert(i == table.remove(t, 1))
197end
198assert(#t == 0)
199
200t = {}
201for i,j in string.gmatch("13 14 10 = 11, 15= 16, 22=23", "(%d+)%s*=%s*(%d+)") do
202  t[i] = j
203end
204a = 0
205for k,v in pairs(t) do assert(k+1 == v+0); a=a+1 end
206assert(a == 3)
207
208
209-- tests for gsub
210function f1(s, p)
211  p = string.gsub(p, "%%([0-9])", function (s) return "%" .. (s+1) end)
212  p = string.gsub(p, "^(^?)", "%1()", 1)
213  p = string.gsub(p, "($?)$", "()%1", 1)
214  local t = {string.match(s, p)}
215  return string.sub(s, t[1], t[#t] - 1)
216end
217
218assert(f1('alo alx 123 b\0o b\0o', '(..*) %1') == "b\0o b\0o")
219assert(f1('axz123= 4= 4 34', '(.+)=(.*)=%2 %1') == '3= 4= 4 3')
220assert(f1('=======', '^(=*)=%1$') == '=======')
221
222-- gsub with tables
223assert(string.gsub("alo alo", ".", {}) == "alo alo")
224assert(string.gsub("alo alo", "(.)", {a="AA", l=""}) == "AAo AAo")
225assert(string.gsub("alo alo", "(.).", {a="AA", l="K"}) == "AAo AAo")
226assert(string.gsub("alo alo", "((.)(.?))", {al="AA", o=false}) == "AAo AAo")
227
228assert(string.gsub("alo alo", "().", {2,5,6}) == "256 alo")
229
230t = {}; setmetatable(t, {__index = function (t,s) return string.upper(s) end})
231assert(string.gsub("a alo b hi", "%w%w+", t) == "a ALO b HI")
232
233
234-- tests for match
235assert(string.match('==========', '^([=]*)=%1$') == nil)
236assert(string.match("alo xyzK", "(%w+)K") == "xyz")
237assert(string.match("254 K", "(%d*)K") == "")
238assert(string.match("alo ", "(%w*)$") == "")
239assert(string.match("alo ", "(%w+)$") == nil)
240assert(string.match("ab\0\1\2c", "[\0-\2]+") == "\0\1\2")
241
242return "OK"
243