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27531ffb JH |
1 | #!/usr/bin/perl |
2 | # | |
3 | # Unit tests of _twrite function | |
4 | # | |
5 | # _twrite($self, $data, $pos, $len) | |
6 | # | |
7 | # 't' here is for 'tail'. This writes $data at absolute position $pos | |
8 | # in the file, overwriting exactly $len of the bytes at that position. | |
9 | # Everything else is moved down or up, dependong on whether | |
10 | # length($data) > $len or length($data) < $len. | |
11 | # $len == 0 is a pure insert; $len == length($data) is a simple overwrite. | |
12 | # | |
13 | ||
0a1552ba | 14 | my $file = "tf26-$$.txt"; |
27531ffb JH |
15 | |
16 | print "1..181\n"; | |
17 | ||
18 | my $N = 1; | |
19 | use Tie::File; | |
20 | print "ok $N\n"; $N++; | |
21 | ||
22 | $: = Tie::File::_default_recsep(); | |
23 | ||
24 | # (2) Peter Scott sent this one. It fails in 0.51 and works in 0.90 | |
25 | # <4.3.2.7.2.20020331102819.00b913d0@shell2.webquarry.com> | |
26 | # | |
27 | # The problem was premature termination in the inner loop | |
28 | # because you had $more_data scoped *inside* the block instead of outside. | |
29 | # 20020331 | |
1ae6ead9 | 30 | open F, '>', $file or die "Couldn't open $file: $!"; |
27531ffb JH |
31 | binmode F; |
32 | for (1..100) { | |
33 | print F "$_ ", 'a'x150, $: ; | |
34 | } | |
35 | close F; | |
36 | # The file is now 15292 characters long on Unix, 15392 on Win32 | |
37 | die -s $file unless -s $file == 15292 + 100 * length($:); | |
38 | ||
39 | tie my @lines, 'Tie::File', $file or die $!; | |
40 | push @lines, "1001 ".('a' x 100); | |
41 | splice @lines, 0, 1; | |
42 | untie @lines; | |
43 | ||
44 | my $s = -s $file; | |
45 | my $x = 15292 - 152 + 105 + 100*length($:); | |
46 | print $s == $x | |
47 | ? "ok $N\n" : "not ok $N # expected $x, got $s\n"; | |
48 | $N++; | |
49 | ||
50 | my @subtests = qw(x <x x> x><x <x> <x><x x><x> <x><x> <x><x><x> 0); | |
51 | ||
52 | # (3-73) These were generated by 'gentests.pl' to cover all possible cases | |
53 | # (I hope) | |
54 | # Legend: | |
55 | # x: data is entirely contained within one block | |
56 | # x>: data runs from the middle to the end of the block | |
57 | # <x: data runs from the start to the middle of the block | |
58 | # <x>: data occupies precisely one block | |
59 | # x><x: data overlaps one block boundary | |
60 | # <x><x: data runs from the start of one block into the middle of the next | |
61 | # x><x>: data runs from the middle of one block to the end of the next | |
62 | # <x><x>: data occupies two blocks exactly | |
63 | # <x><x><x>: data occupies three blocks exactly | |
64 | # 0: data is null | |
65 | # | |
66 | # For each possible alignment of the old and new data, we investigate | |
67 | # up to three situations: old data is shorter, old and new data are the | |
68 | # same length, and new data is shorter. | |
69 | # | |
70 | # try($pos, $old, $new) means to run a test where the data starts at | |
71 | # position $pos, the old data has length $old, | |
72 | # and the new data has length $new. | |
73 | try( 9659, 6635, 6691); # old=x , new=x ; old < new | |
74 | try( 8605, 2394, 2394); # old=x , new=x ; old = new | |
75 | try( 9768, 1361, 664); # old=x , new=x ; old > new | |
76 | try( 9955, 6429, 6429); # old=x> , new=x ; old = new | |
77 | try(10550, 5834, 4123); # old=x> , new=x ; old > new | |
78 | try(14580, 6158, 851); # old=x><x , new=x ; old > new | |
79 | try(13442, 11134, 1572); # old=x><x> , new=x ; old > new | |
80 | try( 8394, 0, 5742); # old=0 , new=x ; old < new | |
81 | try( 8192, 2819, 6738); # old=<x , new=<x ; old < new | |
82 | try( 8192, 514, 514); # old=<x , new=<x ; old = new | |
83 | try( 8192, 2196, 858); # old=<x , new=<x ; old > new | |
84 | try( 8192, 8192, 8192); # old=<x> , new=<x ; old = new | |
85 | try( 8192, 8192, 1290); # old=<x> , new=<x ; old > new | |
86 | try( 8192, 10575, 6644); # old=<x><x , new=<x ; old > new | |
87 | try( 8192, 16384, 5616); # old=<x><x> , new=<x ; old > new | |
88 | try( 8192, 24576, 6253); # old=<x><x><x>, new=<x ; old > new | |
89 | try( 8192, 0, 6870); # old=0 , new=<x ; old < new | |
90 | try( 8478, 6259, 7906); # old=x , new=x> ; old < new | |
91 | try( 9965, 6419, 6419); # old=x> , new=x> ; old = new | |
92 | try(16059, 6102, 325); # old=x><x , new=x> ; old > new | |
93 | try( 9503, 15073, 6881); # old=x><x> , new=x> ; old > new | |
94 | try( 9759, 0, 6625); # old=0 , new=x> ; old < new | |
95 | try( 8525, 2081, 8534); # old=x , new=x><x ; old < new | |
96 | try(15550, 834, 1428); # old=x> , new=x><x ; old < new | |
97 | try(14966, 1668, 3479); # old=x><x , new=x><x ; old < new | |
98 | try(16316, 1605, 1605); # old=x><x , new=x><x ; old = new | |
99 | try(16093, 4074, 993); # old=x><x , new=x><x ; old > new | |
100 | try(14739, 9837, 9837); # old=x><x> , new=x><x ; old = new | |
101 | try(14071, 10505, 7344); # old=x><x> , new=x><x ; old > new | |
102 | try(12602, 0, 8354); # old=0 , new=x><x ; old < new | |
103 | try( 8192, 2767, 8192); # old=<x , new=<x> ; old < new | |
104 | try( 8192, 8192, 8192); # old=<x> , new=<x> ; old = new | |
105 | try( 8192, 14817, 8192); # old=<x><x , new=<x> ; old > new | |
106 | try( 8192, 16384, 8192); # old=<x><x> , new=<x> ; old > new | |
107 | try( 8192, 24576, 8192); # old=<x><x><x>, new=<x> ; old > new | |
108 | try( 8192, 0, 8192); # old=0 , new=<x> ; old < new | |
109 | try( 8192, 6532, 10882); # old=<x , new=<x><x ; old < new | |
110 | try( 8192, 8192, 16044); # old=<x> , new=<x><x ; old < new | |
111 | try( 8192, 9555, 11020); # old=<x><x , new=<x><x ; old < new | |
112 | try( 8192, 9001, 9001); # old=<x><x , new=<x><x ; old = new | |
113 | try( 8192, 11760, 10274); # old=<x><x , new=<x><x ; old > new | |
114 | try( 8192, 16384, 10781); # old=<x><x> , new=<x><x ; old > new | |
115 | try( 8192, 24576, 9284); # old=<x><x><x>, new=<x><x ; old > new | |
116 | try( 8192, 0, 12488); # old=0 , new=<x><x ; old < new | |
117 | try( 8222, 6385, 16354); # old=x , new=x><x> ; old < new | |
118 | try(13500, 2884, 11076); # old=x> , new=x><x> ; old < new | |
119 | try(14069, 4334, 10507); # old=x><x , new=x><x> ; old < new | |
120 | try(14761, 9815, 9815); # old=x><x> , new=x><x> ; old = new | |
121 | try(10469, 0, 14107); # old=0 , new=x><x> ; old < new | |
122 | try( 8192, 4181, 16384); # old=<x , new=<x><x> ; old < new | |
123 | try( 8192, 8192, 16384); # old=<x> , new=<x><x> ; old < new | |
124 | try( 8192, 12087, 16384); # old=<x><x , new=<x><x> ; old < new | |
125 | try( 8192, 16384, 16384); # old=<x><x> , new=<x><x> ; old = new | |
126 | try( 8192, 24576, 16384); # old=<x><x><x>, new=<x><x> ; old > new | |
127 | try( 8192, 0, 16384); # old=0 , new=<x><x> ; old < new | |
128 | try( 8192, 4968, 24576); # old=<x , new=<x><x><x>; old < new | |
129 | try( 8192, 8192, 24576); # old=<x> , new=<x><x><x>; old < new | |
130 | try( 8192, 14163, 24576); # old=<x><x , new=<x><x><x>; old < new | |
131 | try( 8192, 16384, 24576); # old=<x><x> , new=<x><x><x>; old < new | |
132 | try( 8192, 24576, 24576); # old=<x><x><x>, new=<x><x><x>; old = new | |
133 | try( 8192, 0, 24576); # old=0 , new=<x><x><x>; old < new | |
134 | try( 8771, 776, 0); # old=x , new=0 ; old > new | |
135 | try( 8192, 2813, 0); # old=<x , new=0 ; old > new | |
136 | try(13945, 2439, 0); # old=x> , new=0 ; old > new | |
137 | try(14493, 6090, 0); # old=x><x , new=0 ; old > new | |
138 | try( 8192, 8192, 0); # old=<x> , new=0 ; old > new | |
139 | try( 8192, 10030, 0); # old=<x><x , new=0 ; old > new | |
140 | try(14983, 9593, 0); # old=x><x> , new=0 ; old > new | |
141 | try( 8192, 16384, 0); # old=<x><x> , new=0 ; old > new | |
142 | try( 8192, 24576, 0); # old=<x><x><x>, new=0 ; old > new | |
143 | try(10489, 0, 0); # old=0 , new=0 ; old = new | |
144 | ||
145 | # (74-114) | |
146 | # These tests all take place at the start of the file | |
147 | try( 0, 771, 1593); # old=<x , new=<x ; old < new | |
148 | try( 0, 4868, 4868); # old=<x , new=<x ; old = new | |
149 | try( 0, 147, 118); # old=<x , new=<x ; old > new | |
150 | try( 0, 8192, 8192); # old=<x> , new=<x ; old = new | |
151 | try( 0, 8192, 4574); # old=<x> , new=<x ; old > new | |
152 | try( 0, 11891, 1917); # old=<x><x , new=<x ; old > new | |
153 | try( 0, 16384, 5155); # old=<x><x> , new=<x ; old > new | |
154 | try( 0, 24576, 2953); # old=<x><x><x>, new=<x ; old > new | |
155 | try( 0, 0, 1317); # old=0 , new=<x ; old < new | |
156 | try( 0, 5609, 8192); # old=<x , new=<x> ; old < new | |
157 | try( 0, 8192, 8192); # old=<x> , new=<x> ; old = new | |
158 | try( 0, 11083, 8192); # old=<x><x , new=<x> ; old > new | |
159 | try( 0, 16384, 8192); # old=<x><x> , new=<x> ; old > new | |
160 | try( 0, 24576, 8192); # old=<x><x><x>, new=<x> ; old > new | |
161 | try( 0, 0, 8192); # old=0 , new=<x> ; old < new | |
162 | try( 0, 6265, 9991); # old=<x , new=<x><x ; old < new | |
163 | try( 0, 8192, 16119); # old=<x> , new=<x><x ; old < new | |
164 | try( 0, 10218, 11888); # old=<x><x , new=<x><x ; old < new | |
165 | try( 0, 14126, 14126); # old=<x><x , new=<x><x ; old = new | |
166 | try( 0, 12002, 9034); # old=<x><x , new=<x><x ; old > new | |
167 | try( 0, 16384, 13258); # old=<x><x> , new=<x><x ; old > new | |
168 | try( 0, 24576, 14367); # old=<x><x><x>, new=<x><x ; old > new | |
169 | try( 0, 0, 10881); # old=0 , new=<x><x ; old < new | |
170 | try( 0, 6448, 16384); # old=<x , new=<x><x> ; old < new | |
171 | try( 0, 8192, 16384); # old=<x> , new=<x><x> ; old < new | |
172 | try( 0, 15082, 16384); # old=<x><x , new=<x><x> ; old < new | |
173 | try( 0, 16384, 16384); # old=<x><x> , new=<x><x> ; old = new | |
174 | try( 0, 24576, 16384); # old=<x><x><x>, new=<x><x> ; old > new | |
175 | try( 0, 0, 16384); # old=0 , new=<x><x> ; old < new | |
176 | try( 0, 2421, 24576); # old=<x , new=<x><x><x>; old < new | |
177 | try( 0, 8192, 24576); # old=<x> , new=<x><x><x>; old < new | |
178 | try( 0, 11655, 24576); # old=<x><x , new=<x><x><x>; old < new | |
179 | try( 0, 16384, 24576); # old=<x><x> , new=<x><x><x>; old < new | |
180 | try( 0, 24576, 24576); # old=<x><x><x>, new=<x><x><x>; old = new | |
181 | try( 0, 0, 24576); # old=0 , new=<x><x><x>; old < new | |
182 | try( 0, 6530, 0); # old=<x , new=0 ; old > new | |
183 | try( 0, 8192, 0); # old=<x> , new=0 ; old > new | |
184 | try( 0, 14707, 0); # old=<x><x , new=0 ; old > new | |
185 | try( 0, 16384, 0); # old=<x><x> , new=0 ; old > new | |
186 | try( 0, 24576, 0); # old=<x><x><x>, new=0 ; old > new | |
187 | try( 0, 0, 0); # old=0 , new=0 ; old = new | |
188 | ||
189 | # (115-141) | |
190 | # These tests all take place at the end of the file | |
191 | $FLEN = 40960; # Force the file to be exactly 40960 bytes long | |
192 | try(32768, 8192, 8192); # old=<x> , new=<x ; old = new | |
193 | try(32768, 8192, 4026); # old=<x> , new=<x ; old > new | |
194 | try(24576, 16384, 1917); # old=<x><x> , new=<x ; old > new | |
195 | try(16384, 24576, 3818); # old=<x><x><x>, new=<x ; old > new | |
196 | try(40960, 0, 2779); # old=0 , new=<x ; old < new | |
197 | try(32768, 8192, 8192); # old=<x> , new=<x> ; old = new | |
198 | try(24576, 16384, 8192); # old=<x><x> , new=<x> ; old > new | |
199 | try(16384, 24576, 8192); # old=<x><x><x>, new=<x> ; old > new | |
200 | try(40960, 0, 8192); # old=0 , new=<x> ; old < new | |
201 | try(32768, 8192, 10724); # old=<x> , new=<x><x ; old < new | |
202 | try(24576, 16384, 12221); # old=<x><x> , new=<x><x ; old > new | |
203 | try(16384, 24576, 15030); # old=<x><x><x>, new=<x><x ; old > new | |
204 | try(40960, 0, 11752); # old=0 , new=<x><x ; old < new | |
205 | try(32768, 8192, 16384); # old=<x> , new=<x><x> ; old < new | |
206 | try(24576, 16384, 16384); # old=<x><x> , new=<x><x> ; old = new | |
207 | try(16384, 24576, 16384); # old=<x><x><x>, new=<x><x> ; old > new | |
208 | try(40960, 0, 16384); # old=0 , new=<x><x> ; old < new | |
209 | try(32768, 8192, 24576); # old=<x> , new=<x><x><x>; old < new | |
210 | try(24576, 16384, 24576); # old=<x><x> , new=<x><x><x>; old < new | |
211 | try(16384, 24576, 24576); # old=<x><x><x>, new=<x><x><x>; old = new | |
212 | try(40960, 0, 24576); # old=0 , new=<x><x><x>; old < new | |
213 | try(35973, 4987, 0); # old=x> , new=0 ; old > new | |
214 | try(32768, 8192, 0); # old=<x> , new=0 ; old > new | |
215 | try(29932, 11028, 0); # old=x><x> , new=0 ; old > new | |
216 | try(24576, 16384, 0); # old=<x><x> , new=0 ; old > new | |
217 | try(16384, 24576, 0); # old=<x><x><x>, new=0 ; old > new | |
218 | try(40960, 0, 0); # old=0 , new=0 ; old = new | |
219 | ||
220 | # (142-181) | |
221 | # These tests all take place at the end of the file | |
222 | $FLEN = 42000; # Force the file to be exactly 42000 bytes long | |
223 | try(41275, 725, 4059); # old=x , new=x ; old < new | |
224 | try(41683, 317, 317); # old=x , new=x ; old = new | |
225 | try(41225, 775, 405); # old=x , new=x ; old > new | |
226 | try(35709, 6291, 284); # old=x><x , new=x ; old > new | |
227 | try(42000, 0, 2434); # old=0 , new=x ; old < new | |
228 | try(40960, 1040, 1608); # old=<x , new=<x ; old < new | |
229 | try(40960, 1040, 1040); # old=<x , new=<x ; old = new | |
230 | try(40960, 1040, 378); # old=<x , new=<x ; old > new | |
231 | try(32768, 9232, 5604); # old=<x><x , new=<x ; old > new | |
232 | try(42000, 0, 6637); # old=0 , new=<x ; old < new | |
233 | try(41022, 978, 8130); # old=x , new=x> ; old < new | |
234 | try(39994, 2006, 966); # old=x><x , new=x> ; old > new | |
235 | try(42000, 0, 7152); # old=0 , new=x> ; old < new | |
236 | try(41613, 387, 10601); # old=x , new=x><x ; old < new | |
237 | try(38460, 3540, 3938); # old=x><x , new=x><x ; old < new | |
238 | try(36725, 5275, 5275); # old=x><x , new=x><x ; old = new | |
239 | try(37990, 4010, 3199); # old=x><x , new=x><x ; old > new | |
240 | try(42000, 0, 9189); # old=0 , new=x><x ; old < new | |
241 | try(40960, 1040, 8192); # old=<x , new=<x> ; old < new | |
242 | try(32768, 9232, 8192); # old=<x><x , new=<x> ; old > new | |
243 | try(42000, 0, 8192); # old=0 , new=<x> ; old < new | |
244 | try(40960, 1040, 11778); # old=<x , new=<x><x ; old < new | |
245 | try(32768, 9232, 13792); # old=<x><x , new=<x><x ; old < new | |
246 | try(32768, 9232, 9232); # old=<x><x , new=<x><x ; old = new | |
247 | try(32768, 9232, 8795); # old=<x><x , new=<x><x ; old > new | |
248 | try(42000, 0, 8578); # old=0 , new=<x><x ; old < new | |
249 | try(41531, 469, 15813); # old=x , new=x><x> ; old < new | |
250 | try(39618, 2382, 9534); # old=x><x , new=x><x> ; old < new | |
251 | try(42000, 0, 15344); # old=0 , new=x><x> ; old < new | |
252 | try(40960, 1040, 16384); # old=<x , new=<x><x> ; old < new | |
253 | try(32768, 9232, 16384); # old=<x><x , new=<x><x> ; old < new | |
254 | try(42000, 0, 16384); # old=0 , new=<x><x> ; old < new | |
255 | try(40960, 1040, 24576); # old=<x , new=<x><x><x>; old < new | |
256 | try(32768, 9232, 24576); # old=<x><x , new=<x><x><x>; old < new | |
257 | try(42000, 0, 24576); # old=0 , new=<x><x><x>; old < new | |
258 | try(41500, 500, 0); # old=x , new=0 ; old > new | |
259 | try(40960, 1040, 0); # old=<x , new=0 ; old > new | |
260 | try(35272, 6728, 0); # old=x><x , new=0 ; old > new | |
261 | try(32768, 9232, 0); # old=<x><x , new=0 ; old > new | |
262 | try(42000, 0, 0); # old=0 , new=0 ; old = new | |
263 | ||
264 | sub try { | |
265 | my ($pos, $len, $newlen) = @_; | |
1ae6ead9 | 266 | open F, '>', $file or die "Couldn't open file $file: $!"; |
27531ffb JH |
267 | binmode F; |
268 | ||
269 | # The record has exactly 17 characters. This will help ensure that | |
270 | # even if _twrite screws up, the data doesn't coincidentally | |
271 | # look good because the remainder accidentally lines up. | |
6ae23f41 | 272 | my $d = substr("0123456789abcdef$:", -17); |
27531ffb JH |
273 | my $recs = defined($FLEN) ? |
274 | int($FLEN/length($d))+1 : # enough to make up at least $FLEN | |
275 | int(8192*5/length($d))+1; # at least 5 blocks' worth | |
276 | my $oldfile = $d x $recs; | |
277 | my $flen = defined($FLEN) ? $FLEN : $recs * 17; | |
278 | substr($oldfile, $FLEN) = "" if defined $FLEN; # truncate | |
279 | print F $oldfile; | |
280 | close F; | |
281 | ||
282 | die "wrong length!" unless -s $file == $flen; | |
283 | ||
284 | my $newdata = "-" x $newlen; | |
285 | my $expected = $oldfile; | |
286 | substr($expected, $pos, $len) = $newdata; | |
287 | ||
288 | my $o = tie my @lines, 'Tie::File', $file or die $!; | |
289 | $o->_twrite($newdata, $pos, $len); | |
290 | undef $o; untie @lines; | |
291 | ||
1ae6ead9 | 292 | open F, '<', $file or die "Couldn't open file $file: $!"; |
776b00a7 | 293 | binmode F; |
27531ffb JH |
294 | my $actual; |
295 | { local $/; | |
296 | $actual = <F>; | |
297 | } | |
298 | close F; | |
299 | ||
300 | my ($alen, $xlen) = (length $actual, length $expected); | |
301 | unless ($alen == $xlen) { | |
302 | print "# try(@_) expected file length $xlen, actual $alen!\n"; | |
303 | } | |
304 | print $actual eq $expected ? "ok $N\n" : "not ok $N\n"; | |
305 | $N++; | |
306 | } | |
307 | ||
308 | ||
309 | ||
310 | use POSIX 'SEEK_SET'; | |
311 | sub check_contents { | |
312 | my @c = @_; | |
313 | my $x = join $:, @c, ''; | |
314 | local *FH = $o->{fh}; | |
315 | seek FH, 0, SEEK_SET; | |
1ae6ead9 | 316 | # my $open = open FH, '<', $file; |
27531ffb JH |
317 | my $a; |
318 | { local $/; $a = <FH> } | |
319 | $a = "" unless defined $a; | |
320 | if ($a eq $x) { | |
321 | print "ok $N\n"; | |
322 | } else { | |
323 | ctrlfix($a, $x); | |
324 | print "not ok $N\n# expected <$x>, got <$a>\n"; | |
325 | } | |
326 | $N++; | |
327 | ||
328 | # now check FETCH: | |
329 | my $good = 1; | |
330 | my $msg; | |
331 | for (0.. $#c) { | |
332 | my $aa = $a[$_]; | |
333 | unless ($aa eq "$c[$_]$:") { | |
334 | $msg = "expected <$c[$_]$:>, got <$aa>"; | |
335 | ctrlfix($msg); | |
336 | $good = 0; | |
337 | } | |
338 | } | |
339 | print $good ? "ok $N\n" : "not ok $N # $msg\n"; | |
340 | $N++; | |
341 | ||
342 | print $o->_check_integrity($file, $ENV{INTEGRITY}) | |
343 | ? "ok $N\n" : "not ok $N\n"; | |
344 | $N++; | |
345 | } | |
346 | ||
347 | sub ctrlfix { | |
348 | for (@_) { | |
349 | s/\n/\\n/g; | |
350 | s/\r/\\r/g; | |
351 | } | |
352 | } | |
353 | ||
354 | END { | |
355 | undef $o; | |
356 | untie @a; | |
357 | 1 while unlink $file; | |
358 | } | |
359 |