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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
#!/usr/bin/perl
#
# Unit tests of _upcopy function
#
# _upcopy($self, $source, $dest, $len)
#
# Take a block of data of leength $len at $source and copy it
# to $dest, which must be <= $source but which need not be <= $source - $len
# (That is, this will only copy a block to a position earlier in the file,
# but the source and destination regions may overlap.)
my $file = "tf$$.txt";
print "1..55\n";
my $N = 1;
use Tie::File;
print "ok $N\n"; $N++;
$: = Tie::File::_default_recsep();
my @subtests = qw(x <x x> x><x <x> <x><x x><x> <x><x> <x><x><x> 0);
$FLEN = 40970; # 2410 records of 17 chars each
# (2-7) Trivial non-moves at start of file
try(0, 0, 0);
try(0, 0, 10);
try(0, 0, 100);
try(0, 0, 1000);
try(0, 0, 10000);
try(0, 0, 20000);
# (8-13) Trivial non-moves in middle of file
try(100, 100, 0);
try(100, 100, 10);
try(100, 100, 100);
try(100, 100, 1000);
try(100, 100, 10000);
try(100, 100, 20000);
# (14) Trivial non-move at end of file
try($FLEN, $FLEN, 0);
# (15-17) Trivial non-move of tail of file
try(0, 0, undef);
try(100, 100, undef);
try($FLEN, $FLEN, undef);
# (18-24) Moves to start of file
try(100, 0, 0);
try(100, 0, 10);
try(100, 0, 100);
try(100, 0, 1000);
try(100, 0, 10000);
try(100, 0, 20000);
try(100, 0, undef);
# (25-31) Moves in middle of file
try(200, 100, 0);
try(200, 100, 10);
try(200, 100, 100);
try(200, 100, 1000);
try(200, 100, 10000);
try(200, 100, 20000);
try(200, 100, undef);
# (32-43) Moves from end of file
try($FLEN, 10000, 0);
try($FLEN-10, 10000, 10);
try($FLEN-100, 10000, 100);
try($FLEN-1000, 200, 1000);
try($FLEN-10000, 200, 10000);
try($FLEN-20000, 200, 20000);
try($FLEN, 10000, undef);
try($FLEN-10, 10000, undef);
try($FLEN-100, 10000, undef);
try($FLEN-1000, 200, undef);
try($FLEN-10000, 200, undef);
try($FLEN-20000, 200, undef);
$FLEN = 40960;
# (44-55) Moves from end of file when file ends on a block boundary
try($FLEN, 10000, 0);
try($FLEN-10, 10000, 10);
try($FLEN-100, 10000, 100);
try($FLEN-1000, 200, 1000);
try($FLEN-10000, 200, 10000);
try($FLEN-20000, 200, 20000);
try($FLEN, 10000, undef);
try($FLEN-10, 10000, undef);
try($FLEN-100, 10000, undef);
try($FLEN-1000, 200, undef);
try($FLEN-10000, 200, undef);
try($FLEN-20000, 200, undef);
sub try {
my ($src, $dst, $len) = @_;
open F, "> $file" or die "Couldn't open file $file: $!";
binmode F;
# The record has exactly 17 characters. This will help ensure that
# even if _upcopy screws up, the data doesn't coincidentally
# look good because the remainder accidentally lines up.
my $d = substr("0123456789abcdef$:", -17);
my $recs = defined($FLEN) ?
int($FLEN/length($d))+1 : # enough to make up at least $FLEN
int(8192*5/length($d))+1; # at least 5 blocks' worth
my $oldfile = $d x $recs;
my $flen = defined($FLEN) ? $FLEN : $recs * 17;
substr($oldfile, $FLEN) = "" if defined $FLEN; # truncate
print F $oldfile;
close F;
die "wrong length!" unless -s $file == $flen;
# If len is specified, use that. If it's undef,
# then behave *as if* we had specified the whole rest of the file
my $expected = $oldfile;
if (defined $len) {
substr($expected, $dst, $len) = substr($expected, $src, $len);
} else {
substr($expected, $dst) = substr($expected, $src);
}
my $o = tie my @lines, 'Tie::File', $file or die $!;
local $SIG{ALRM} = sub { die "Alarm clock" };
my $a_retval = eval { alarm(5) unless $^P; $o->_upcopy($src, $dst, $len) };
my $err = $@;
undef $o; untie @lines; alarm(0);
if ($err) {
if ($err =~ /^Alarm clock/) {
print "# Timeout\n";
print "not ok $N\n"; $N++;
return;
} else {
$@ = $err;
die;
}
}
open F, "< $file" or die "Couldn't open file $file: $!";
binmode F;
my $actual;
{ local $/;
$actual = <F>;
}
close F;
my ($alen, $xlen) = (length $actual, length $expected);
unless ($alen == $xlen) {
print "# try(@_) expected file length $xlen, actual $alen!\n";
}
print $actual eq $expected ? "ok $N\n" : "not ok $N\n";
$N++;
}
use POSIX 'SEEK_SET';
sub check_contents {
my @c = @_;
my $x = join $:, @c, '';
local *FH = $o->{fh};
seek FH, 0, SEEK_SET;
# my $open = open FH, "< $file";
my $a;
{ local $/; $a = <FH> }
$a = "" unless defined $a;
if ($a eq $x) {
print "ok $N\n";
} else {
ctrlfix($a, $x);
print "not ok $N\n# expected <$x>, got <$a>\n";
}
$N++;
# now check FETCH:
my $good = 1;
my $msg;
for (0.. $#c) {
my $aa = $a[$_];
unless ($aa eq "$c[$_]$:") {
$msg = "expected <$c[$_]$:>, got <$aa>";
ctrlfix($msg);
$good = 0;
}
}
print $good ? "ok $N\n" : "not ok $N # $msg\n";
$N++;
print $o->_check_integrity($file, $ENV{INTEGRITY})
? "ok $N\n" : "not ok $N\n";
$N++;
}
sub ctrlfix {
for (@_) {
s/\n/\\n/g;
s/\r/\\r/g;
}
}
END {
undef $o;
untie @a;
1 while unlink $file;
}
|
