| 1 | use warnings; |
| 2 | no warnings "once"; |
| 3 | use Config; |
| 4 | |
| 5 | use IPC::Open3 1.0104 qw(open3); |
| 6 | use Test::More tests => 58; |
| 7 | |
| 8 | sub runperl { |
| 9 | my(%args) = @_; |
| 10 | my($w, $r); |
| 11 | my $pid = open3($w, $r, undef, $^X, "-e", $args{prog}); |
| 12 | close $w; |
| 13 | my $output = ""; |
| 14 | while(<$r>) { $output .= $_; } |
| 15 | waitpid($pid, 0); |
| 16 | return $output; |
| 17 | } |
| 18 | |
| 19 | my $Is_VMS = $^O eq 'VMS'; |
| 20 | |
| 21 | use Carp qw(carp cluck croak confess); |
| 22 | |
| 23 | BEGIN { |
| 24 | # This test must be run at BEGIN time, because code later in this file |
| 25 | # sets CORE::GLOBAL::caller |
| 26 | ok !exists $CORE::GLOBAL::{caller}, |
| 27 | "Loading doesn't create CORE::GLOBAL::caller"; |
| 28 | } |
| 29 | |
| 30 | { |
| 31 | local $SIG{__WARN__} = sub { |
| 32 | like $_[0], qr/ok (\d+)\n at.+\b(?i:carp\.t) line \d+$/, 'ok 2\n'; |
| 33 | }; |
| 34 | |
| 35 | carp "ok 2\n"; |
| 36 | } |
| 37 | |
| 38 | { |
| 39 | local $SIG{__WARN__} = sub { |
| 40 | like $_[0], qr/(\d+) at.+\b(?i:carp\.t) line \d+$/, 'carp 3'; |
| 41 | }; |
| 42 | |
| 43 | carp 3; |
| 44 | } |
| 45 | |
| 46 | sub sub_4 { |
| 47 | local $SIG{__WARN__} = sub { |
| 48 | like $_[0], |
| 49 | qr/^(\d+) at.+\b(?i:carp\.t) line \d+\n\tmain::sub_4\(\) called at.+\b(?i:carp\.t) line \d+$/, |
| 50 | 'cluck 4'; |
| 51 | }; |
| 52 | |
| 53 | cluck 4; |
| 54 | } |
| 55 | |
| 56 | sub_4; |
| 57 | |
| 58 | { |
| 59 | local $SIG{__DIE__} = sub { |
| 60 | like $_[0], |
| 61 | qr/^(\d+) at.+\b(?i:carp\.t) line \d+\n\teval \Q{...}\E called at.+\b(?i:carp\.t) line \d+$/, |
| 62 | 'croak 5'; |
| 63 | }; |
| 64 | |
| 65 | eval { croak 5 }; |
| 66 | } |
| 67 | |
| 68 | sub sub_6 { |
| 69 | local $SIG{__DIE__} = sub { |
| 70 | like $_[0], |
| 71 | qr/^(\d+) at.+\b(?i:carp\.t) line \d+\n\teval \Q{...}\E called at.+\b(?i:carp\.t) line \d+\n\tmain::sub_6\(\) called at.+\b(?i:carp\.t) line \d+$/, |
| 72 | 'confess 6'; |
| 73 | }; |
| 74 | |
| 75 | eval { confess 6 }; |
| 76 | } |
| 77 | |
| 78 | sub_6; |
| 79 | |
| 80 | ok(1); |
| 81 | |
| 82 | # test for caller_info API |
| 83 | my $eval = "use Carp; return Carp::caller_info(0);"; |
| 84 | my %info = eval($eval); |
| 85 | is( $info{sub_name}, "eval '$eval'", 'caller_info API' ); |
| 86 | |
| 87 | # test for '...::CARP_NOT used only once' warning from Carp |
| 88 | my $warning; |
| 89 | eval { |
| 90 | BEGIN { |
| 91 | local $SIG{__WARN__} = sub { |
| 92 | if ( defined $^S ) { warn $_[0] } |
| 93 | else { $warning = $_[0] } |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | package Z; |
| 98 | |
| 99 | BEGIN { |
| 100 | eval { Carp::croak() }; |
| 101 | } |
| 102 | }; |
| 103 | ok !$warning, q/'...::CARP_NOT used only once' warning from Carp/; |
| 104 | |
| 105 | # Test the location of error messages. |
| 106 | like( A::short(), qr/^Error at C/, "Short messages skip carped package" ); |
| 107 | |
| 108 | { |
| 109 | local @C::ISA = "D"; |
| 110 | like( A::short(), qr/^Error at B/, "Short messages skip inheritance" ); |
| 111 | } |
| 112 | |
| 113 | { |
| 114 | local @D::ISA = "C"; |
| 115 | like( A::short(), qr/^Error at B/, "Short messages skip inheritance" ); |
| 116 | } |
| 117 | |
| 118 | { |
| 119 | local @D::ISA = "B"; |
| 120 | local @B::ISA = "C"; |
| 121 | like( A::short(), qr/^Error at A/, "Inheritance is transitive" ); |
| 122 | } |
| 123 | |
| 124 | { |
| 125 | local @B::ISA = "D"; |
| 126 | local @C::ISA = "B"; |
| 127 | like( A::short(), qr/^Error at A/, "Inheritance is transitive" ); |
| 128 | } |
| 129 | |
| 130 | { |
| 131 | local @C::CARP_NOT = "D"; |
| 132 | like( A::short(), qr/^Error at B/, "Short messages see \@CARP_NOT" ); |
| 133 | } |
| 134 | |
| 135 | { |
| 136 | local @D::CARP_NOT = "C"; |
| 137 | like( A::short(), qr/^Error at B/, "Short messages see \@CARP_NOT" ); |
| 138 | } |
| 139 | |
| 140 | { |
| 141 | local @D::CARP_NOT = "B"; |
| 142 | local @B::CARP_NOT = "C"; |
| 143 | like( A::short(), qr/^Error at A/, "\@CARP_NOT is transitive" ); |
| 144 | } |
| 145 | |
| 146 | { |
| 147 | local @B::CARP_NOT = "D"; |
| 148 | local @C::CARP_NOT = "B"; |
| 149 | like( A::short(), qr/^Error at A/, "\@CARP_NOT is transitive" ); |
| 150 | } |
| 151 | |
| 152 | { |
| 153 | local @D::ISA = "C"; |
| 154 | local @D::CARP_NOT = "B"; |
| 155 | like( A::short(), qr/^Error at C/, "\@CARP_NOT overrides inheritance" ); |
| 156 | } |
| 157 | |
| 158 | { |
| 159 | local @D::ISA = "B"; |
| 160 | local @D::CARP_NOT = "C"; |
| 161 | like( A::short(), qr/^Error at B/, "\@CARP_NOT overrides inheritance" ); |
| 162 | } |
| 163 | |
| 164 | # %Carp::Internal |
| 165 | { |
| 166 | local $Carp::Internal{C} = 1; |
| 167 | like( A::short(), qr/^Error at B/, "Short doesn't report Internal" ); |
| 168 | } |
| 169 | |
| 170 | { |
| 171 | local $Carp::Internal{D} = 1; |
| 172 | like( A::long(), qr/^Error at C/, "Long doesn't report Internal" ); |
| 173 | } |
| 174 | |
| 175 | # %Carp::CarpInternal |
| 176 | { |
| 177 | local $Carp::CarpInternal{D} = 1; |
| 178 | like( |
| 179 | A::short(), qr/^Error at B/, |
| 180 | "Short doesn't report calls to CarpInternal" |
| 181 | ); |
| 182 | } |
| 183 | |
| 184 | { |
| 185 | local $Carp::CarpInternal{D} = 1; |
| 186 | like( A::long(), qr/^Error at C/, "Long doesn't report CarpInternal" ); |
| 187 | } |
| 188 | |
| 189 | # tests for global variables |
| 190 | sub x { carp @_ } |
| 191 | sub w { cluck @_ } |
| 192 | |
| 193 | # $Carp::Verbose; |
| 194 | { |
| 195 | my $aref = [ |
| 196 | qr/t at \S*(?i:carp.t) line \d+/, |
| 197 | qr/t at \S*(?i:carp.t) line \d+\n\s*main::x\('t'\) called at \S*(?i:carp.t) line \d+/ |
| 198 | ]; |
| 199 | my $i = 0; |
| 200 | |
| 201 | for my $re (@$aref) { |
| 202 | local $Carp::Verbose = $i++; |
| 203 | local $SIG{__WARN__} = sub { |
| 204 | like $_[0], $re, 'Verbose'; |
| 205 | }; |
| 206 | |
| 207 | package Z; |
| 208 | main::x('t'); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | # $Carp::MaxEvalLen |
| 213 | { |
| 214 | my $test_num = 1; |
| 215 | for ( 0, 4 ) { |
| 216 | my $txt = "Carp::cluck($test_num)"; |
| 217 | local $Carp::MaxEvalLen = $_; |
| 218 | local $SIG{__WARN__} = sub { |
| 219 | "@_" =~ /'(.+?)(?:\n|')/s; |
| 220 | is length($1), |
| 221 | length( $_ ? substr( $txt, 0, $_ ) : substr( $txt, 0 ) ), |
| 222 | 'MaxEvalLen'; |
| 223 | }; |
| 224 | eval "$txt"; |
| 225 | $test_num++; |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | # $Carp::MaxArgLen |
| 230 | { |
| 231 | for ( 0, 4 ) { |
| 232 | my $arg = 'testtest'; |
| 233 | local $Carp::MaxArgLen = $_; |
| 234 | local $SIG{__WARN__} = sub { |
| 235 | "@_" =~ /'(.+?)'/; |
| 236 | is length($1), |
| 237 | length( $_ ? substr( $arg, 0, $_ ) : substr( $arg, 0 ) ), |
| 238 | 'MaxArgLen'; |
| 239 | }; |
| 240 | |
| 241 | package Z; |
| 242 | main::w($arg); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | # $Carp::MaxArgNums |
| 247 | { |
| 248 | my $i = 0; |
| 249 | my $aref = [ |
| 250 | qr/1234 at \S*(?i:carp.t) line \d+\n\s*main::w\(1, 2, 3, 4\) called at \S*(?i:carp.t) line \d+/, |
| 251 | qr/1234 at \S*(?i:carp.t) line \d+\n\s*main::w\(1, 2, \.\.\.\) called at \S*(?i:carp.t) line \d+/, |
| 252 | ]; |
| 253 | |
| 254 | for (@$aref) { |
| 255 | local $Carp::MaxArgNums = $i++; |
| 256 | local $SIG{__WARN__} = sub { |
| 257 | like "@_", $_, 'MaxArgNums'; |
| 258 | }; |
| 259 | |
| 260 | package Z; |
| 261 | main::w( 1 .. 4 ); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | # $Carp::CarpLevel |
| 266 | { |
| 267 | my $i = 0; |
| 268 | my $aref = [ |
| 269 | qr/1 at \S*(?i:carp.t) line \d+\n\s*main::w\(1\) called at \S*(?i:carp.t) line \d+/, |
| 270 | qr/1 at \S*(?i:carp.t) line \d+$/, |
| 271 | ]; |
| 272 | |
| 273 | for (@$aref) { |
| 274 | local $Carp::CarpLevel = $i++; |
| 275 | local $SIG{__WARN__} = sub { |
| 276 | like "@_", $_, 'CarpLevel'; |
| 277 | }; |
| 278 | |
| 279 | package Z; |
| 280 | main::w(1); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | { |
| 285 | local $TODO = "VMS exit status semantics don't work this way" if $Is_VMS; |
| 286 | |
| 287 | # Check that croak() and confess() don't clobber $! |
| 288 | runperl( |
| 289 | prog => 'use Carp; $@=q{Phooey}; $!=42; croak(q{Dead})', |
| 290 | stderr => 1 |
| 291 | ); |
| 292 | |
| 293 | is( $? >> 8, 42, 'croak() doesn\'t clobber $!' ); |
| 294 | |
| 295 | runperl( |
| 296 | prog => 'use Carp; $@=q{Phooey}; $!=42; confess(q{Dead})', |
| 297 | stderr => 1 |
| 298 | ); |
| 299 | |
| 300 | is( $? >> 8, 42, 'confess() doesn\'t clobber $!' ); |
| 301 | } |
| 302 | |
| 303 | # undef used to be incorrectly reported as the string "undef" |
| 304 | sub cluck_undef { |
| 305 | |
| 306 | local $SIG{__WARN__} = sub { |
| 307 | like $_[0], |
| 308 | qr/^Bang! at.+\b(?i:carp\.t) line \d+\n\tmain::cluck_undef\(0, 'undef', 2, undef, 4\) called at.+\b(?i:carp\.t) line \d+$/, |
| 309 | "cluck doesn't quote undef"; |
| 310 | }; |
| 311 | |
| 312 | cluck "Bang!" |
| 313 | |
| 314 | } |
| 315 | |
| 316 | cluck_undef( 0, "undef", 2, undef, 4 ); |
| 317 | |
| 318 | # check that Carp respects CORE::GLOBAL::caller override after Carp |
| 319 | # has been compiled |
| 320 | for my $bodge_job ( 2, 1, 0 ) { |
| 321 | print '# ', ( $bodge_job ? 'Not ' : '' ), |
| 322 | "setting \@DB::args in caller override\n"; |
| 323 | if ( $bodge_job == 1 ) { |
| 324 | require B; |
| 325 | print "# required B\n"; |
| 326 | } |
| 327 | my $accum = ''; |
| 328 | local *CORE::GLOBAL::caller = sub { |
| 329 | local *__ANON__ = "fakecaller"; |
| 330 | my @c = CORE::caller(@_); |
| 331 | $c[0] ||= 'undef'; |
| 332 | $accum .= "@c[0..3]\n"; |
| 333 | if ( !$bodge_job && CORE::caller() eq 'DB' ) { |
| 334 | |
| 335 | package DB; |
| 336 | return CORE::caller( ( $_[0] || 0 ) + 1 ); |
| 337 | } |
| 338 | else { |
| 339 | return CORE::caller( ( $_[0] || 0 ) + 1 ); |
| 340 | } |
| 341 | }; |
| 342 | eval "scalar caller()"; |
| 343 | like( $accum, qr/main::fakecaller/, |
| 344 | "test CORE::GLOBAL::caller override in eval" ); |
| 345 | $accum = ''; |
| 346 | my $got = A::long(42); |
| 347 | like( $accum, qr/main::fakecaller/, |
| 348 | "test CORE::GLOBAL::caller override in Carp" ); |
| 349 | my $package = 'A'; |
| 350 | my $where = $bodge_job == 1 ? ' in &main::__ANON__' : ''; |
| 351 | my $warning |
| 352 | = $bodge_job |
| 353 | ? "\Q** Incomplete caller override detected$where; \@DB::args were not set **\E" |
| 354 | : ''; |
| 355 | |
| 356 | for ( 0 .. 2 ) { |
| 357 | my $previous_package = $package; |
| 358 | ++$package; |
| 359 | like( $got, |
| 360 | qr/${package}::long\($warning\) called at $previous_package line \d+/, |
| 361 | "Correct arguments for $package" ); |
| 362 | } |
| 363 | my $arg = $bodge_job ? $warning : 42; |
| 364 | like( |
| 365 | $got, qr!A::long\($arg\) called at.+\b(?i:carp\.t) line \d+!, |
| 366 | 'Correct arguments for A' |
| 367 | ); |
| 368 | } |
| 369 | |
| 370 | eval <<'EOT'; |
| 371 | no warnings 'redefine'; |
| 372 | sub CORE::GLOBAL::caller { |
| 373 | my $height = $_[0]; |
| 374 | $height++; |
| 375 | return CORE::caller($height); |
| 376 | } |
| 377 | EOT |
| 378 | |
| 379 | my $got = A::long(42); |
| 380 | |
| 381 | like( |
| 382 | $got, |
| 383 | qr!A::long\(\Q** Incomplete caller override detected; \E\@DB::args\Q were not set **\E\) called at.+\b(?i:carp\.t) line \d+!, |
| 384 | 'Correct arguments for A' |
| 385 | ); |
| 386 | |
| 387 | # UTF8-flagged strings should not cause Carp to try to load modules (even |
| 388 | # implicitly via utf8_heavy.pl) after a syntax error [perl #82854]. |
| 389 | like( |
| 390 | runperl( |
| 391 | prog => q< |
| 392 | use utf8; use strict; use Carp; |
| 393 | BEGIN { $SIG{__DIE__} = sub { Carp::croak "aaaaa$_[0]" } } |
| 394 | $c |
| 395 | >, |
| 396 | stderr=>1, |
| 397 | ), |
| 398 | qr/aaaaa/, |
| 399 | 'Carp can handle UTF8-flagged strings after a syntax error', |
| 400 | ); |
| 401 | |
| 402 | SKIP: |
| 403 | { |
| 404 | skip("B:: always created when static", 1) |
| 405 | if $Config{static_ext} =~ /\bB\b/; |
| 406 | is( |
| 407 | runperl( |
| 408 | prog => q< |
| 409 | use Carp; |
| 410 | $SIG{__WARN__} = sub{}; |
| 411 | carp ("A duck, but which duck?"); |
| 412 | print "ok" unless exists $::{"B::"}; |
| 413 | >, |
| 414 | ), |
| 415 | 'ok', |
| 416 | 'Carp does not autovivify *B::', |
| 417 | ); |
| 418 | } |
| 419 | |
| 420 | # New tests go here |
| 421 | |
| 422 | # line 1 "A" |
| 423 | package A; |
| 424 | |
| 425 | sub short { |
| 426 | B::short(); |
| 427 | } |
| 428 | |
| 429 | sub long { |
| 430 | B::long(); |
| 431 | } |
| 432 | |
| 433 | # line 1 "B" |
| 434 | package B; |
| 435 | |
| 436 | sub short { |
| 437 | C::short(); |
| 438 | } |
| 439 | |
| 440 | sub long { |
| 441 | C::long(); |
| 442 | } |
| 443 | |
| 444 | # line 1 "C" |
| 445 | package C; |
| 446 | |
| 447 | sub short { |
| 448 | D::short(); |
| 449 | } |
| 450 | |
| 451 | sub long { |
| 452 | D::long(); |
| 453 | } |
| 454 | |
| 455 | # line 1 "D" |
| 456 | package D; |
| 457 | |
| 458 | sub short { |
| 459 | eval { Carp::croak("Error") }; |
| 460 | return $@; |
| 461 | } |
| 462 | |
| 463 | sub long { |
| 464 | eval { Carp::confess("Error") }; |
| 465 | return $@; |
| 466 | } |
| 467 | |
| 468 | # Put new tests at "new tests go here" |
| 469 | __END__ |