t_here.sh revision 1.9
1 # $NetBSD: t_here.sh,v 1.9 2021/11/22 05:21:54 kre Exp $ 2 # 3 # Copyright (c) 2007 The NetBSD Foundation, Inc. 4 # All rights reserved. 5 # 6 # Redistribution and use in source and binary forms, with or without 7 # modification, are permitted provided that the following conditions 8 # are met: 9 # 1. Redistributions of source code must retain the above copyright 10 # notice, this list of conditions and the following disclaimer. 11 # 2. Redistributions in binary form must reproduce the above copyright 12 # notice, this list of conditions and the following disclaimer in the 13 # documentation and/or other materials provided with the distribution. 14 # 15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 # POSSIBILITY OF SUCH DAMAGE. 26 # 27 # the implementation of "sh" to test 28 : ${TEST_SH:="/bin/sh"} 29 30 nl=' 31 ' 32 33 reset() 34 { 35 TEST_NUM=0 36 TEST_FAILURES='' 37 TEST_FAIL_COUNT=0 38 TEST_ID="$1" 39 } 40 41 check() 42 { 43 fail=false 44 TEMP_FILE=$( mktemp OUT.XXXXXX ) 45 TEST_NUM=$(( $TEST_NUM + 1 )) 46 47 # our local shell (ATF_SHELL) better do quoting correctly... 48 # some of the tests expect us to expand $nl internally... 49 CMD="nl='${nl}'; $1" 50 51 result="$( ${TEST_SH} -c "${CMD}" 2>"${TEMP_FILE}" )" 52 STATUS=$? 53 54 if [ "${STATUS}" -ne "$3" ]; then 55 echo >&2 "[$TEST_NUM] expected exit code $3, got ${STATUS}" 56 57 # don't actually fail just because of wrong exit code 58 # unless we either expected, or received "good" 59 case "$3/${STATUS}" in 60 (*/0|0/*) fail=true;; 61 esac 62 fi 63 64 if [ "$3" -eq 0 ]; then 65 if [ -s "${TEMP_FILE}" ]; then 66 echo >&2 \ 67 "[$TEST_NUM] Messages produced on stderr unexpected..." 68 cat "${TEMP_FILE}" >&2 69 fail=true 70 fi 71 else 72 if ! [ -s "${TEMP_FILE}" ]; then 73 echo >&2 \ 74 "[$TEST_NUM] Expected messages on stderr, nothing produced" 75 fail=true 76 fi 77 fi 78 rm -f "${TEMP_FILE}" 79 80 # Remove newlines (use local shell for this) 81 result="$( 82 IFS="$nl" 83 set -f 84 set -- $result 85 IFS=' ' 86 printf %s "$*" 87 )" 88 if [ "$2" != "$result" ] 89 then 90 echo >&2 "[$TEST_NUM] Expected output '$2', received '$result'" 91 fail=true 92 fi 93 94 if $fail 95 then 96 echo >&2 "[$TEST_NUM] Full command: <<${CMD}>>" 97 fi 98 99 $fail && test -n "$TEST_ID" && { 100 TEST_FAILURES="${TEST_FAILURES}${TEST_FAILURES:+ 101 }${TEST_ID}[$TEST_NUM]: test of '$1' failed"; 102 TEST_FAIL_COUNT=$(( $TEST_FAIL_COUNT + 1 )) 103 return 0 104 } 105 $fail && atf_fail "Test[$TEST_NUM] of '$1' failed" 106 return 0 107 } 108 109 results() 110 { 111 test -z "${TEST_ID}" && return 0 112 test -z "${TEST_FAILURES}" && return 0 113 114 echo >&2 "==========================================" 115 echo >&2 "While testing '${TEST_ID}'" 116 echo >&2 " - - - - - - - - - - - - - - - - -" 117 echo >&2 "${TEST_FAILURES}" 118 atf_fail \ 119 "Test ${TEST_ID}: $TEST_FAIL_COUNT subtests (of $TEST_NUM) failed - see stderr" 120 } 121 122 atf_test_case do_simple 123 do_simple_head() { 124 atf_set "descr" "Basic tests for here documents" 125 } 126 do_simple_body() { 127 y=x 128 129 reset 'simple' 130 IFS=' ' 131 check 'x=`cat <<EOF'$nl'text'${nl}EOF$nl'`; echo $x' 'text' 0 132 check 'x=`cat <<\EOF'$nl'text'${nl}EOF$nl'`; echo $x' 'text' 0 133 134 check "y=${y};"'x=`cat <<EOF'$nl'te${y}t'${nl}EOF$nl'`; echo $x' \ 135 'text' 0 136 check "y=${y};"'x=`cat <<\EOF'$nl'te${y}t'${nl}EOF$nl'`; echo $x' \ 137 'te${y}t' 0 138 check "y=${y};"'x=`cat <<"EOF"'$nl'te${y}t'${nl}EOF$nl'`; echo $x' \ 139 'te${y}t' 0 140 check "y=${y};"'x=`cat <<'"'EOF'"$nl'te${y}t'${nl}EOF$nl'`; echo $x' \ 141 'te${y}t' 0 142 143 # check that quotes in the here doc survive and cause no problems 144 check "cat <<EOF${nl}te'xt${nl}EOF$nl" "te'xt" 0 145 check "cat <<\EOF${nl}te'xt${nl}EOF$nl" "te'xt" 0 146 check "cat <<'EOF'${nl}te'xt${nl}EOF$nl" "te'xt" 0 147 check "cat <<EOF${nl}te\"xt${nl}EOF$nl" 'te"xt' 0 148 check "cat <<\EOF${nl}te\"xt${nl}EOF$nl" 'te"xt' 0 149 check "cat <<'EOF'${nl}te\"xt${nl}EOF$nl" 'te"xt' 0 150 check "cat <<'EO'F${nl}te\"xt${nl}EOF$nl" 'te"xt' 0 151 152 check "y=${y};"'x=`cat <<EOF'$nl'te'"'"'${y}t'${nl}EOF$nl'`; echo $x' \ 153 'te'"'"'xt' 0 154 check "y=${y};"'x=`cat <<EOF'$nl'te'"''"'${y}t'${nl}EOF$nl'`; echo $x' \ 155 'te'"''"'xt' 0 156 157 # note that the blocks of empty space in the following must 158 # be entirely tab characters, no spaces. 159 160 check 'x=`cat <<EOF'"$nl text${nl}EOF$nl"'`; echo "$x"' \ 161 ' text' 0 162 check 'x=`cat <<-EOF'"$nl text${nl}EOF$nl"'`; echo $x' \ 163 'text' 0 164 check 'x=`cat <<-EOF'"${nl}text${nl} EOF$nl"'`; echo $x' \ 165 'text' 0 166 check 'x=`cat <<-\EOF'"$nl text${nl} EOF$nl"'`; echo $x' \ 167 'text' 0 168 check 'x=`cat <<- "EOF"'"$nl text${nl}EOF$nl"'`; echo $x' \ 169 'text' 0 170 check 'x=`cat <<- '"'EOF'${nl}text${nl} EOF$nl"'`; echo $x' \ 171 'text' 0 172 results 173 } 174 175 atf_test_case end_markers 176 end_markers_head() { 177 atf_set "descr" "Tests for various end markers of here documents" 178 } 179 end_markers_body() { 180 181 reset 'end_markers' 182 for end in EOF 1 \! '$$$' "string " a\\\ a\\\ \ '&' '' ' ' ' ' \ 183 --STRING-- . '~~~' ')' '(' '#' '()' '(\)' '(\/)' '--' '\' '{' '}' \ 184 VERYVERYVERYVERYLONGLONGLONGin_fact_absurdly_LONG_LONG_HERE_DOCUMENT_TERMINATING_MARKER_THAT_goes_On_forever_and_ever_and_ever... 185 do 186 # check unquoted end markers 187 case "${end}" in 188 ('' | *[' ()\$&#*~']* ) ;; # skip unquoted endmark test for these 189 (*) check \ 190 'x=$(cat << '"${end}${nl}text${nl}${end}${nl}"'); printf %s "$x"' 'text' 0 191 ;; 192 esac 193 194 # and quoted end markers 195 check \ 196 'x=$(cat <<'"'${end}'${nl}text${nl}${end}${nl}"'); printf %s "$x"' 'text' 0 197 198 # and see what happens if we encounter "almost" an end marker 199 case "${#end}" in 200 (0|1) ;; # too short to try truncation tests 201 (*) check \ 202 'x=$(cat <<'"'${end}'${nl}text${nl}${end%?}${nl}${end}${nl}"'); printf %s "$x"' \ 203 "text ${end%?}" 0 204 check \ 205 'x=$(cat <<'"'${end}'${nl}text${nl}${end#?}${nl}${end}${nl}"'); printf %s "$x"' \ 206 "text ${end#?}" 0 207 check \ 208 'x=$(cat <<'"'${end}'${nl}text${nl}${end%?}+${nl}${end}${nl}"');printf %s "$x"' \ 209 "text ${end%?}+" 0 210 ;; 211 esac 212 213 # or something that is a little longer 214 check \ 215 'x=$(cat <<'"'${end}'${nl}text${nl}${end}x${nl}${end}${nl}"'); printf %s "$x"' \ 216 "text ${end}x" 0 217 check \ 218 'x=$(cat <<'"'${end}'${nl}text${nl}!${end}${nl}${end}${nl}"'); printf %s "$x"' \ 219 "text !${end}" 0 220 221 # or which does not begin at start of line 222 check \ 223 'x=$(cat <<'"'${end}'${nl}text${nl} ${end}${nl}${end}${nl}"'); printf %s "$x"' \ 224 "text ${end}" 0 225 check \ 226 'x=$(cat <<'"'${end}'${nl}text${nl} ${end}${nl}${end}${nl}"'); printf %s "$x"' \ 227 "text ${end}" 0 228 229 # or end at end of line 230 check \ 231 'x=$(cat <<'"'${end}'${nl}text${nl}${end} ${nl}${end}${nl}"'); printf %s "$x"' \ 232 "text ${end} " 0 233 234 # or something that is correct much of the way, but then... 235 236 case "${#end}" in 237 (0) ;; # cannot test this one 238 (1) check \ 239 'x=$(cat <<'"'${end}'${nl}text${nl}${end}${end}${nl}${end}${nl}"'); printf %s "$x"' \ 240 "text ${end}${end}" 0 241 ;; 242 (2-7) pfx="${end%?}" 243 check \ 244 'x=$(cat <<'"'${end}'${nl}text${nl}${end}${pfx}${nl}${end}${nl}"'); printf %s "$x"' \ 245 "text ${end}${pfx}" 0 246 check \ 247 'x=$(cat <<'"'${end}'${nl}text${nl}${pfx}${end}${nl}${end}${nl}"'); printf %s "$x"' \ 248 "text ${pfx}${end}" 0 249 ;; 250 (*) pfx=${end%??????}; sfx=${end#??????} 251 check \ 252 'x=$(cat <<'"'${end}'${nl}text${nl}${end}${sfx}${nl}${end}${nl}"'); printf %s "$x"' \ 253 "text ${end}${sfx}" 0 254 check \ 255 'x=$(cat <<'"'${end}'${nl}text${nl}${pfx}${end}${nl}${end}${nl}"'); printf %s "$x"' \ 256 "text ${pfx}${end}" 0 257 check \ 258 'x=$(cat <<'"'${end}'${nl}text${nl}${pfx}${sfx}${nl}${end}${nl}"'); printf %s "$x"' \ 259 "text ${pfx}${sfx}" 0 260 ;; 261 esac 262 done 263 264 # Add striptabs tests (in similar way) here one day... 265 266 results 267 } 268 269 atf_test_case incomplete 270 incomplete_head() { 271 atf_set "descr" "Basic tests for incomplete here documents" 272 } 273 incomplete_body() { 274 reset incomplete 275 276 check 'cat <<EOF' '' 2 277 check 'cat <<- EOF' '' 2 278 check 'cat <<\EOF' '' 2 279 check 'cat <<- \EOF' '' 2 280 281 check 'cat <<EOF'"${nl}" '' 2 282 check 'cat <<- EOF'"${nl}" '' 2 283 check 'cat <<'"'EOF'${nl}" '' 2 284 check 'cat <<- "EOF"'"${nl}" '' 2 285 286 check 'cat << EOF'"${nl}${nl}" '' 2 287 check 'cat <<-EOF'"${nl}${nl}" '' 2 288 check 'cat << '"'EOF'${nl}${nl}" '' 2 289 check 'cat <<-"EOF"'"${nl}${nl}" '' 2 290 291 check 'cat << EOF'"${nl}"'line 1'"${nl}" '' 2 292 check 'cat <<-EOF'"${nl}"' line 1'"${nl}" '' 2 293 check 'cat << EOF'"${nl}"'line 1'"${nl}"' line 2'"${nl}" '' 2 294 check 'cat <<-EOF'"${nl}"' line 1'"${nl}"'line 2'"${nl}" '' 2 295 296 check 'cat << EOF'"${nl}line 1${nl}${nl}line3${nl}${nl}5!${nl}" '' 2 297 298 results 299 } 300 301 atf_test_case lineends 302 lineends_head() { 303 atf_set "descr" "Tests for line endings in here documents" 304 } 305 lineends_body() { 306 reset lineends 307 308 # note that "check" removes newlines from stdout before comparing. 309 # (they become blanks, provided there is something before & after) 310 311 check 'cat << \echo'"${nl}"'\'"${nl}echo${nl}echo${nl}" '\' 0 312 check 'cat << echo'"${nl}"'\'"${nl}echo${nl}echo${nl}" 'echo' 0 313 check 'cat << echo'"${nl}"'\\'"${nl}echo${nl}echo${nl}" '\' 0 314 315 check 'X=3; cat << ec\ho'"${nl}"'$X\'"${nl}echo${nl}echo${nl}" \ 316 '$X\' 0 317 check 'X=3; cat << echo'"${nl}"'$X'"${nl}echo${nl}echo${nl}" \ 318 '3' 0 319 check 'X=3; cat << echo'"${nl}"'$X\'"${nl}echo${nl}echo${nl}" \ 320 '' 0 321 check 'X=3; cat << echo'"${nl}"'${X}\'"${nl}echo${nl}echo${nl}" \ 322 '3echo' 0 323 check 'X=3; cat << echo'"${nl}"'\$X\'"${nl}echo${nl}echo${nl}" \ 324 '$Xecho' 0 325 check 'X=3; cat << echo'"${nl}"'\\$X \'"${nl}echo${nl}echo${nl}" \ 326 '\3 echo' 0 327 328 check \ 329 'cat << "echo"'"${nl}"'line1\'"${nl}"'line2\'"${nl}echo${nl}echo${nl}" \ 330 'line1\ line2\' 0 331 check \ 332 'cat << echo'"${nl}"'line1\'"${nl}"'line2\'"${nl}echo${nl}echo${nl}" \ 333 'line1line2echo' 0 334 335 results 336 } 337 338 atf_test_case multiple 339 multiple_head() { 340 atf_set "descr" "Tests for multiple here documents on one cmd line" 341 } 342 multiple_body() { 343 reset multiple 344 345 check \ 346 "(cat ; cat <&3) <<EOF0 3<<EOF3${nl}STDIN${nl}EOF0${nl}-3-${nl}EOF3${nl}" \ 347 'STDIN -3-' 0 348 349 check "(read line; echo \"\$line\"; cat <<EOF1; echo \"\$line\") <<EOF2 350 The File 351 EOF1 352 The Line 353 EOF2 354 " 'The Line The File The Line' 0 355 356 check "(read line; echo \"\$line\"; cat <<EOF; echo \"\$line\") <<EOF 357 The File 358 EOF 359 The Line 360 EOF 361 " 'The Line The File The Line' 0 362 363 check "V=1; W=2; cat <<-1; cat <<2; cat <<- 3; cat <<'4';"' cat <<\5 364 $V 365 $W 366 3 367 4 368 5 369 1 370 2 371 5 372 4*$W+\$V 373 3 374 $W 375 1 376 2 377 3 378 4 379 7+$V 380 $W+6 381 5 382 ' '1 2 3 4 5 5 4*2+$V $W 1 2 3 7+$V $W+6' 0 383 384 results 385 } 386 387 atf_test_case nested 388 nested_head() { 389 atf_set "descr" "Tests for nested here documents for one cmd" 390 } 391 nested_body() { 392 reset nested 393 394 check \ 395 'cat << EOF1'"${nl}"'$(cat << EOF2'"${nl}LINE${nl}EOF2${nl}"')'"${nl}EOF1${nl}"\ 396 'LINE' 0 397 398 # This next one fails ... and correctly, so we will omit it (bad test) 399 # Reasoning is that the correct data "$(cat << EOF2)\nLINE\nEOF2\n" is 400 # collected for the outer (EOF1) heredoc, when that is parsed, it looks 401 # like 402 # $(cat <<EOF2) 403 # LINE 404 # EOF2 405 # which looks like a good command - except it is being parsed in "heredoc" 406 # syntax, which means it is enclosed in double quotes, which means that 407 # the newline after the ')' in the first line is not a newline token, but 408 # just a character. The EOF2 heredoc cannot start until after the next 409 # newline token, of which there are none here... LINE and EOF2 are just 410 # more data in the outer EOF1 heredoc for its "cat" command to read & write. 411 # 412 # The previous sub-test works because there the \n comes inside the 413 # $( ), and in there, the outside quoting rules are suspended, and it 414 # all starts again - so that \n is a newline token, and the EOF2 heredoc 415 # is processed. 416 # 417 # check \ 418 # 'cat << EOF1'"${nl}"'$(cat << EOF2 )'"${nl}LINE${nl}EOF2${nl}EOF1${nl}" \ 419 # 'LINE' 0 420 421 L='cat << EOF1'"${nl}"'LINE1$(cat << EOF2'"${nl}" 422 L="${L}"'LINE2$(cat << EOF3'"${nl}" 423 L="${L}"'LINE3$(cat << EOF4'"${nl}" 424 L="${L}"'LINE4$(cat << EOF5'"${nl}" 425 L="${L}LINE5${nl}EOF5${nl})4${nl}EOF4${nl})3${nl}" 426 L="${L}EOF3${nl})2${nl}EOF2${nl})1${nl}EOF1${nl}" 427 428 # That mess is ... 429 # 430 # cat <<EOF1 431 # LINE1$(cat << EOF2 432 # LINE2$(cat << EOF3 433 # LINE3$(cat << EOF4 434 # LINE4$(cat << EOF5 435 # LINE5 436 # EOF5 437 # )4 438 # EOF4 439 # )3 440 # EOF3 441 # )2 442 # EOF2 443 # )1 444 # EOF1 445 446 check "${L}" 'LINE1LINE2LINE3LINE4LINE54321' 0 447 448 results 449 } 450 451 atf_test_case quoting 452 quoting_head() { 453 atf_set "descr" "Tests for use of quotes inside here documents" 454 } 455 quoting_body() { 456 reset quoting 457 458 check 'X=!; cat <<- E\0F 459 <'\''"'\'' \\$X\$X "'\''" \\> 460 E0F 461 ' '<'\''"'\'' \\$X\$X "'\''" \\>' 0 462 463 check 'X=!; cat <<- E0F 464 <'\''"'\'' \\$X\$X "'\''" \\> 465 E0F 466 ' '<'\''"'\'' \!$X "'\''" \>' 0 467 468 check 'cat <<- END 469 $( echo "'\''" ) $( echo '\''"'\'' ) $( echo \\ ) 470 END 471 ' "' \" \\" 0 472 473 check 'X=12345; Y="string1 line1?-line2"; Z=; unset W; cat <<-EOF 474 ${#X}${Z:-${Y}}${W+junk}${Y%%l*}${Y#*\?} 475 "$Z"'\''$W'\'' ${Y%" "*} $(( X + 54321 )) 476 EOF 477 ' '5string1 line1?-line2string1 -line2 ""'\'\'' string1 66666' 0 478 479 # check that \ only quotes the magic chars, otherwise is retained 480 check 'p=A; cat <<-EOF 481 ${p+\%$p\%} 482 ${p+%$p%} 483 EOF 484 ' '\%A\% %A%' 0 485 486 # and check that " is not magic, so \ does not quote it 487 check 'p=A; cat <<-EOF 488 ${p+\"$p\"} 489 ${p+"$p"} 490 EOF 491 ' '\"A\" "A"' 0 492 493 # except in a ${var%<word>} word, base syntax reapplies, and 494 # there quotes are magic again 495 check 'p=ABCD; cat <<-EOF 496 ${p%B?D} 497 ${p%B\?D} 498 ${p%"BCD"} 499 "${p%??}" 500 ${p#"${p%??}"} 501 "${p#"${p%?"?"}"}" 502 EOF 503 ' 'A ABCD A "AB" CD ""' 0 504 505 check 'p=AB??; cat <<-EOF 506 ${p%B?D} 507 ${p%B\??} 508 ${p%"B??"} 509 "${p%??}" 510 ${p#"${p%??}"} 511 "${p#"${p%?"?"}"}" 512 EOF 513 ' 'AB?? A A "AB" ?? "??"' 0 514 515 results 516 } 517 518 # 519 # This next test is really just testing what our shell happens to do. 520 # There doesn't seem to be any spec on in which context expansions 521 # in redirects are processed. Most shells do them in the parent 522 # shell context, meaning that side effects of the expansion become 523 # visible to the shell - a couple process redirect expansions in 524 # a subshell, meaning that side effects are lost. 525 # 526 # Before PR bin/53550 was fixed, the NetBSD sh evaluated all redirect 527 # expansions, except here documents, in the context of the shell, and 528 # here document redirects in a subshell context. That distinction 529 # makes no real sense (and only an old, and maybe still current, FreeBSD 530 # shell shares that pecadillo.) Afer that fix, the NetBSD shell joins 531 # almost all others in expanding redirects (all of them) in the shell 532 # context, meaning that side effects of here documenty expansions become 533 # visible in the shell. 534 # 535 # Before the fix, we used to get "2\n1\n" as the output from this 536 # test, now the variable assignment in the here document persists 537 # and we get "2\n2\n" as do most other shells. (bash is a notable 538 # exception, but it does all redirect expansions in a subshell context) 539 # 540 541 atf_test_case side_effects 542 side_effects_head() { 543 atf_set "descr" "Tests how side effects in here documents are handled" 544 } 545 side_effects_body() { 546 547 atf_check -s exit:0 -o inline:'2\n2\n' -e empty ${TEST_SH} -c ' 548 unset X 549 cat <<-EOF 550 ${X=2} 551 EOF 552 echo "${X-1}" 553 ' 554 } 555 556 # This is a test for the specific bug reported in PR bin/53550 557 # This should work in any shell. 558 559 atf_test_case exit_status 560 exit_status_head() { 561 atf_set descr "Tests exit status of a command substitution in a heredoc" 562 } 563 exit_status_body() { 564 565 # PR bin/53550 test 566 atf_check -s exit:7 -o empty -e empty ${TEST_SH} -c ' 567 <<-EOF 568 $(exit 7) 569 EOF 570 ' 571 } 572 573 # The following tests a problem reported on the austin-list 2021-09-08 574 # by oguzismailuysal (at] gmail.com ... it affected all ash derived shells 575 atf_test_case hard_cases 576 hard_cases_head() { 577 atf_set "descr" \ 578 "Tests here docs in positions that have confised our parser" 579 } 580 hard_cases_body() { 581 582 atf_check -s exit:0 -o inline:'xxx\n' -e empty ${TEST_SH} -c ' 583 : <<- do | for x in xxx 584 do 585 do echo $x 586 done' 587 588 atf_check -s exit:0 -o inline:'xxx\n' -e empty ${TEST_SH} -c ' 589 set -- xxx 590 : <<- done | for x in xxx 591 done 592 do echo $x 593 done' 594 595 atf_check -s exit:0 -o inline:'xxx\n' -e empty ${TEST_SH} -c ' 596 : <<- in | case xxx 597 in 598 in xxx) echo xxx;; 599 esac' 600 } 601 602 atf_test_case vicious 603 vicious_head() { 604 atf_set "descr" "Tests for obscure and obnoxious uses of here docs" 605 } 606 vicious_body() { 607 reset 608 609 cat <<- \END_SCRIPT > script 610 cat <<ONE && cat \ 611 <<TWO 612 a 613 ONE 614 b 615 TWO 616 END_SCRIPT 617 618 atf_check -s exit:0 -o inline:'a\nb\n' -e empty ${TEST_SH} script 619 620 # This next one is causing discussion currently (late Feb 2016) 621 # amongst stds writers & implementors. Consequently we 622 # will not check what it produces. The eventual result 623 # seems unlikely to be what we currently output, which 624 # is: 625 # A:echo line 1 626 # B:echo line 2)" && prefix DASH_CODE <<DASH_CODE 627 # B:echo line 3 628 # line 4 629 # line 5 630 # 631 # The likely intended output is ... 632 # 633 # A:echo line 3 634 # B:echo line 1 635 # line 2 636 # DASH_CODE:echo line 4)" 637 # DASH_CODE:echo line 5 638 # 639 # The difference is explained by differing opinions on just 640 # when processing of a here doc should start 641 642 cat <<- \END_SCRIPT > script 643 prefix() { sed -e "s/^/$1:/"; } 644 DASH_CODE() { :; } 645 646 prefix A <<XXX && echo "$(prefix B <<XXX 647 echo line 1 648 XXX 649 echo line 2)" && prefix DASH_CODE <<DASH_CODE 650 echo line 3 651 XXX 652 echo line 4)" 653 echo line 5 654 DASH_CODE 655 END_SCRIPT 656 657 # we will just verify that the shell can parse the 658 # script somehow, and doesn't fall over completely... 659 660 atf_check -s exit:0 -o ignore -e empty ${TEST_SH} script 661 } 662 663 atf_init_test_cases() { 664 atf_add_test_case do_simple # not worthy of a comment 665 atf_add_test_case end_markers # the mundane, the weird, the bizarre 666 atf_add_test_case exit_status # PR bin/53550, cmdsub in heredoc 667 atf_add_test_case incomplete # where the end marker isn't... 668 atf_add_test_case lineends # test weird line endings in heredocs 669 atf_add_test_case multiple # multiple << operators on one cmd 670 atf_add_test_case nested # here docs inside here docs 671 atf_add_test_case quoting # stuff quoted inside 672 atf_add_test_case side_effects # here docs that modify environment 673 atf_add_test_case hard_cases # here doc bodies appearing mid command 674 atf_add_test_case vicious # evil test from the austin-l list... 675 } 676
Indexes created Sun Sep 28 16:09:52 GMT 2025