1#!/usr/bin/perl 2 3# 4# Check SPLICE function's effect on the file 5# (07_rv_splice.t checks its return value) 6# 7# Each call to 'check_contents' actually performs two tests. 8# First, it calls the tied object's own 'check_integrity' method, 9# which makes sure that the contents of the read cache and offset tables 10# accurately reflect the contents of the file. 11# Then, it checks the actual contents of the file against the expected 12# contents. 13 14 15$| = 1; 16my $file = "tf04-$$.txt"; 17$: = Tie::File::_default_recsep(); 18my $data = "rec0$:rec1$:rec2$:"; 19print "1..118\n"; 20 21init_file($data); 22 23my $N = 1; 24use Tie::File; 25print "ok $N\n"; $N++; # partial credit just for showing up 26 27my $o = tie @a, 'Tie::File', $file; 28print $o ? "ok $N\n" : "not ok $N\n"; 29$N++; 30 31$: = $o->{recsep}; 32my $n; 33 34# (3-22) splicing at the beginning 35splice(@a, 0, 0, "rec4"); 36check_contents("rec4$:$data"); 37splice(@a, 0, 1, "rec5"); # same length 38check_contents("rec5$:$data"); 39splice(@a, 0, 1, "record5"); # longer 40check_contents("record5$:$data"); 41 42splice(@a, 0, 1, "r5"); # shorter 43check_contents("r5$:$data"); 44splice(@a, 0, 1); # removal 45check_contents("$data"); 46splice(@a, 0, 0); # no-op 47check_contents("$data"); 48splice(@a, 0, 0, 'r7', 'rec8'); # insert more than one 49check_contents("r7$:rec8$:$data"); 50splice(@a, 0, 2, 'rec7', 'record8', 'rec9'); # insert more than delete 51check_contents("rec7$:record8$:rec9$:$data"); 52 53splice(@a, 0, 3, 'record9', 'rec10'); # delete more than insert 54check_contents("record9$:rec10$:$data"); 55splice(@a, 0, 2); # delete more than one 56check_contents("$data"); 57 58 59# (23-42) splicing in the middle 60splice(@a, 1, 0, "rec4"); 61check_contents("rec0$:rec4$:rec1$:rec2$:"); 62splice(@a, 1, 1, "rec5"); # same length 63check_contents("rec0$:rec5$:rec1$:rec2$:"); 64splice(@a, 1, 1, "record5"); # longer 65check_contents("rec0$:record5$:rec1$:rec2$:"); 66 67splice(@a, 1, 1, "r5"); # shorter 68check_contents("rec0$:r5$:rec1$:rec2$:"); 69splice(@a, 1, 1); # removal 70check_contents("$data"); 71splice(@a, 1, 0); # no-op 72check_contents("$data"); 73splice(@a, 1, 0, 'r7', 'rec8'); # insert more than one 74check_contents("rec0$:r7$:rec8$:rec1$:rec2$:"); 75splice(@a, 1, 2, 'rec7', 'record8', 'rec9'); # insert more than delete 76check_contents("rec0$:rec7$:record8$:rec9$:rec1$:rec2$:"); 77 78splice(@a, 1, 3, 'record9', 'rec10'); # delete more than insert 79check_contents("rec0$:record9$:rec10$:rec1$:rec2$:"); 80splice(@a, 1, 2); # delete more than one 81check_contents("$data"); 82 83# (43-62) splicing at the end 84splice(@a, 3, 0, "rec4"); 85check_contents("$ {data}rec4$:"); 86splice(@a, 3, 1, "rec5"); # same length 87check_contents("$ {data}rec5$:"); 88splice(@a, 3, 1, "record5"); # longer 89check_contents("$ {data}record5$:"); 90 91splice(@a, 3, 1, "r5"); # shorter 92check_contents("$ {data}r5$:"); 93splice(@a, 3, 1); # removal 94check_contents("$data"); 95splice(@a, 3, 0); # no-op 96check_contents("$data"); 97splice(@a, 3, 0, 'r7', 'rec8'); # insert more than one 98check_contents("$ {data}r7$:rec8$:"); 99splice(@a, 3, 2, 'rec7', 'record8', 'rec9'); # insert more than delete 100check_contents("$ {data}rec7$:record8$:rec9$:"); 101 102splice(@a, 3, 3, 'record9', 'rec10'); # delete more than insert 103check_contents("$ {data}record9$:rec10$:"); 104splice(@a, 3, 2); # delete more than one 105check_contents("$data"); 106 107# (63-82) splicing with negative subscript 108splice(@a, -1, 0, "rec4"); 109check_contents("rec0$:rec1$:rec4$:rec2$:"); 110splice(@a, -1, 1, "rec5"); # same length 111check_contents("rec0$:rec1$:rec4$:rec5$:"); 112splice(@a, -1, 1, "record5"); # longer 113check_contents("rec0$:rec1$:rec4$:record5$:"); 114 115splice(@a, -1, 1, "r5"); # shorter 116check_contents("rec0$:rec1$:rec4$:r5$:"); 117splice(@a, -1, 1); # removal 118check_contents("rec0$:rec1$:rec4$:"); 119splice(@a, -1, 0); # no-op 120check_contents("rec0$:rec1$:rec4$:"); 121splice(@a, -1, 0, 'r7', 'rec8'); # insert more than one 122check_contents("rec0$:rec1$:r7$:rec8$:rec4$:"); 123splice(@a, -1, 2, 'rec7', 'record8', 'rec9'); # insert more than delete 124check_contents("rec0$:rec1$:r7$:rec8$:rec7$:record8$:rec9$:"); 125 126splice(@a, -3, 3, 'record9', 'rec10'); # delete more than insert 127check_contents("rec0$:rec1$:r7$:rec8$:record9$:rec10$:"); 128splice(@a, -4, 3); # delete more than one 129check_contents("rec0$:rec1$:rec10$:"); 130 131# (83-84) scrub it all out 132splice(@a, 0, 3); 133check_contents(""); 134 135# (85-86) put some back in 136splice(@a, 0, 0, "rec0", "rec1"); 137check_contents("rec0$:rec1$:"); 138 139# (87-88) what if we remove too many records? 140splice(@a, 0, 17); 141check_contents(""); 142 143# (89-92) In the past, splicing past the end was not correctly detected 144# (1.14) 145splice(@a, 89, 3); 146check_contents(""); 147splice(@a, @a, 3); 148check_contents(""); 149 150# (93-96) Also we did not emulate splice's freaky behavior when inserting 151# past the end of the array (1.14) 152splice(@a, 89, 0, "I", "like", "pie"); 153check_contents("I$:like$:pie$:"); 154splice(@a, 89, 0, "pie pie pie"); 155check_contents("I$:like$:pie$:pie pie pie$:"); 156 157# (97) Splicing with too large a negative number should be fatal 158# This test ignored because it causes 5.6.1 and 5.7.3 to dump core 159# It also garbles the stack under 5.005_03 (20020401) 160# NOT MY FAULT 161if ($] > 5.007003) { 162 eval { splice(@a, -7, 0) }; 163 print $@ =~ /^Modification of non-creatable array value attempted, subscript -7/ 164 ? "ok $N\n" : "not ok $N \# \$\@ was '$@'\n"; 165} else { 166 print "ok $N \# skipped (versions through 5.7.3 dump core here.)\n"; 167} 168$N++; 169 170# (98-101) Test default arguments 171splice @a, 0, 0, (0..11); 172splice @a, 4; 173check_contents("0$:1$:2$:3$:"); 174splice @a; 175check_contents(""); 176 177# (102-103) I think there's a bug here---it will fail to clear the EOF flag 178@a = (0..11); 179splice @a, -1, 1000; 180check_contents("0$:1$:2$:3$:4$:5$:6$:7$:8$:9$:10$:"); 181 182# (104-106) make sure that undefs are treated correctly---they should 183# be converted to empty records, and should not raise any warnings. 184# (Some of these failed in 0.90. The change to _fixrec fixed them.) 185# 20020331 186{ 187 my $good = 1; my $warn; 188 # If any of these raise warnings, we have a problem. 189 local $SIG{__WARN__} = sub { $good = 0; $warn = shift(); ctrlfix($warn)}; 190 local $^W = 1; 191 @a = (1); 192 splice @a, 1, 0, undef, undef, undef; 193 print $good ? "ok $N\n" : "not ok $N # $warn\n"; 194 $N++; $good = 1; 195 print defined($a[2]) ? "ok $N\n" : "not ok $N\n"; 196 $N++; $good = 1; 197 my @r = splice @a, 2; 198 print defined($r[0]) ? "ok $N\n" : "not ok $N\n"; 199 $N++; $good = 1; 200} 201 202# (107-118) splice with negative length was treated wrong 203# 20020402 Reported by Juerd Waalboer 204@a = (0..8) ; 205splice @a, 0, -3; 206check_contents("6$:7$:8$:"); 207@a = (0..8) ; 208splice @a, 1, -3; 209check_contents("0$:6$:7$:8$:"); 210@a = (0..8) ; 211splice @a, 7, -3; 212check_contents("0$:1$:2$:3$:4$:5$:6$:7$:8$:"); 213@a = (0..2) ; 214splice @a, 0, -3; 215check_contents("0$:1$:2$:"); 216@a = (0..2) ; 217splice @a, 1, -3; 218check_contents("0$:1$:2$:"); 219@a = (0..2) ; 220splice @a, 7, -3; 221check_contents("0$:1$:2$:"); 222 223sub init_file { 224 my $data = shift; 225 open F, '>', $file or die $!; 226 binmode F; 227 print F $data; 228 close F; 229} 230 231use POSIX 'SEEK_SET'; 232sub check_contents { 233 my $x = shift; 234 my $integrity = $o->_check_integrity($file, $ENV{INTEGRITY}); 235 local *FH = $o->{fh}; 236 seek FH, 0, SEEK_SET; 237 print $integrity ? "ok $N\n" : "not ok $N\n"; 238 $N++; 239 my $a; 240 { local $/; $a = <FH> } 241 $a = "" unless defined $a; 242 if ($a eq $x) { 243 print "ok $N\n"; 244 } else { 245 ctrlfix($a, $x); 246 print "not ok $N\n# expected <$x>, got <$a>\n"; 247 } 248 $N++; 249} 250 251 252sub ctrlfix { 253 for (@_) { 254 s/\n/\\n/g; 255 s/\r/\\r/g; 256 } 257} 258 259END { 260 undef $o; 261 untie @a; 262 1 while unlink $file; 263} 264 265