| 1 | ## oils_failures_allowed: 1
|
| 2 | ## compare_shells: dash bash mksh zsh
|
| 3 |
|
| 4 | # Tests for builtins having to do with variables: export, readonly, unset, etc.
|
| 5 | #
|
| 6 | # Also see assign.test.sh.
|
| 7 |
|
| 8 | #### Export sets a global variable
|
| 9 | # Even after you do export -n, it still exists.
|
| 10 | f() { export GLOBAL=X; }
|
| 11 | f
|
| 12 | echo $GLOBAL
|
| 13 | printenv.py GLOBAL
|
| 14 | ## STDOUT:
|
| 15 | X
|
| 16 | X
|
| 17 | ## END
|
| 18 |
|
| 19 | #### Export sets a global variable that persists after export -n
|
| 20 | f() { export GLOBAL=X; }
|
| 21 | f
|
| 22 | echo $GLOBAL
|
| 23 | printenv.py GLOBAL
|
| 24 | export -n GLOBAL
|
| 25 | echo $GLOBAL
|
| 26 | printenv.py GLOBAL
|
| 27 | ## STDOUT:
|
| 28 | X
|
| 29 | X
|
| 30 | X
|
| 31 | None
|
| 32 | ## END
|
| 33 | ## N-I mksh/dash STDOUT:
|
| 34 | X
|
| 35 | X
|
| 36 | ## END
|
| 37 | ## N-I mksh status: 1
|
| 38 | ## N-I dash status: 2
|
| 39 | ## N-I zsh STDOUT:
|
| 40 | X
|
| 41 | X
|
| 42 | X
|
| 43 | X
|
| 44 | ## END
|
| 45 |
|
| 46 | #### export -n undefined is ignored
|
| 47 | set -o errexit
|
| 48 | export -n undef
|
| 49 | echo status=$?
|
| 50 | ## stdout: status=0
|
| 51 | ## N-I mksh/dash/zsh stdout-json: ""
|
| 52 | ## N-I mksh status: 1
|
| 53 | ## N-I dash status: 2
|
| 54 | ## N-I zsh status: 1
|
| 55 |
|
| 56 | #### export -n foo=bar not allowed
|
| 57 | foo=old
|
| 58 | export -n foo=new
|
| 59 | echo status=$?
|
| 60 | echo $foo
|
| 61 | ## STDOUT:
|
| 62 | status=2
|
| 63 | old
|
| 64 | ## END
|
| 65 | ## OK bash STDOUT:
|
| 66 | status=0
|
| 67 | new
|
| 68 | ## END
|
| 69 | ## N-I zsh STDOUT:
|
| 70 | status=1
|
| 71 | old
|
| 72 | ## END
|
| 73 | ## N-I dash status: 2
|
| 74 | ## N-I dash stdout-json: ""
|
| 75 | ## N-I mksh status: 1
|
| 76 | ## N-I mksh stdout-json: ""
|
| 77 |
|
| 78 | #### Export a global variable and unset it
|
| 79 | f() { export GLOBAL=X; }
|
| 80 | f
|
| 81 | echo $GLOBAL
|
| 82 | printenv.py GLOBAL
|
| 83 | unset GLOBAL
|
| 84 | echo g=$GLOBAL
|
| 85 | printenv.py GLOBAL
|
| 86 | ## STDOUT:
|
| 87 | X
|
| 88 | X
|
| 89 | g=
|
| 90 | None
|
| 91 | ## END
|
| 92 |
|
| 93 | #### Export existing global variables
|
| 94 | G1=g1
|
| 95 | G2=g2
|
| 96 | export G1 G2
|
| 97 | printenv.py G1 G2
|
| 98 | ## STDOUT:
|
| 99 | g1
|
| 100 | g2
|
| 101 | ## END
|
| 102 |
|
| 103 | #### Export existing local variable
|
| 104 | f() {
|
| 105 | local L1=local1
|
| 106 | export L1
|
| 107 | printenv.py L1
|
| 108 | }
|
| 109 | f
|
| 110 | printenv.py L1
|
| 111 | ## STDOUT:
|
| 112 | local1
|
| 113 | None
|
| 114 | ## END
|
| 115 |
|
| 116 | #### Export a local that shadows a global
|
| 117 | V=global
|
| 118 | f() {
|
| 119 | local V=local1
|
| 120 | export V
|
| 121 | printenv.py V
|
| 122 | }
|
| 123 | f
|
| 124 | printenv.py V # exported local out of scope; global isn't exported yet
|
| 125 | export V
|
| 126 | printenv.py V # now it's exported
|
| 127 | ## STDOUT:
|
| 128 | local1
|
| 129 | None
|
| 130 | global
|
| 131 | ## END
|
| 132 |
|
| 133 | #### Export a variable before defining it
|
| 134 | export U
|
| 135 | U=u
|
| 136 | printenv.py U
|
| 137 | ## stdout: u
|
| 138 |
|
| 139 | #### Unset exported variable, then define it again. It's NOT still exported.
|
| 140 | export U
|
| 141 | U=u
|
| 142 | printenv.py U
|
| 143 | unset U
|
| 144 | printenv.py U
|
| 145 | U=newvalue
|
| 146 | echo $U
|
| 147 | printenv.py U
|
| 148 | ## STDOUT:
|
| 149 | u
|
| 150 | None
|
| 151 | newvalue
|
| 152 | None
|
| 153 | ## END
|
| 154 |
|
| 155 | #### Exporting a parent func variable (dynamic scope)
|
| 156 | # The algorithm is to walk up the stack and export that one.
|
| 157 | inner() {
|
| 158 | export outer_var
|
| 159 | echo "inner: $outer_var"
|
| 160 | printenv.py outer_var
|
| 161 | }
|
| 162 | outer() {
|
| 163 | local outer_var=X
|
| 164 | echo "before inner"
|
| 165 | printenv.py outer_var
|
| 166 | inner
|
| 167 | echo "after inner"
|
| 168 | printenv.py outer_var
|
| 169 | }
|
| 170 | outer
|
| 171 | ## STDOUT:
|
| 172 | before inner
|
| 173 | None
|
| 174 | inner: X
|
| 175 | X
|
| 176 | after inner
|
| 177 | X
|
| 178 | ## END
|
| 179 |
|
| 180 | #### Dependent export setting
|
| 181 | # FOO is not respected here either.
|
| 182 | export FOO=foo v=$(printenv.py FOO)
|
| 183 | echo "v=$v"
|
| 184 | ## stdout: v=None
|
| 185 |
|
| 186 | #### Exporting a variable doesn't change it
|
| 187 | old=$PATH
|
| 188 | export PATH
|
| 189 | new=$PATH
|
| 190 | test "$old" = "$new" && echo "not changed"
|
| 191 | ## stdout: not changed
|
| 192 |
|
| 193 | #### can't export array
|
| 194 | typeset -a a
|
| 195 | a=(1 2 3)
|
| 196 | export a
|
| 197 | printenv.py a
|
| 198 | ## STDOUT:
|
| 199 | None
|
| 200 | ## END
|
| 201 | ## BUG mksh STDOUT:
|
| 202 | 1
|
| 203 | ## END
|
| 204 | ## N-I dash status: 2
|
| 205 | ## N-I dash stdout-json: ""
|
| 206 | ## OK osh status: 1
|
| 207 | ## OK osh stdout-json: ""
|
| 208 |
|
| 209 | #### can't export associative array
|
| 210 | typeset -A a
|
| 211 | a["foo"]=bar
|
| 212 | export a
|
| 213 | printenv.py a
|
| 214 | ## STDOUT:
|
| 215 | None
|
| 216 | ## END
|
| 217 | ## N-I mksh status: 1
|
| 218 | ## N-I mksh stdout-json: ""
|
| 219 | ## OK osh status: 1
|
| 220 | ## OK osh stdout-json: ""
|
| 221 |
|
| 222 | #### assign to readonly variable
|
| 223 | # bash doesn't abort unless errexit!
|
| 224 | readonly foo=bar
|
| 225 | foo=eggs
|
| 226 | echo "status=$?" # nothing happens
|
| 227 | ## status: 1
|
| 228 | ## BUG bash stdout: status=1
|
| 229 | ## BUG bash status: 0
|
| 230 | ## OK dash/mksh status: 2
|
| 231 |
|
| 232 | #### Make an existing local variable readonly
|
| 233 | f() {
|
| 234 | local x=local
|
| 235 | readonly x
|
| 236 | echo $x
|
| 237 | eval 'x=bar' # Wrap in eval so it's not fatal
|
| 238 | echo status=$?
|
| 239 | }
|
| 240 | x=global
|
| 241 | f
|
| 242 | echo $x
|
| 243 | ## STDOUT:
|
| 244 | local
|
| 245 | status=1
|
| 246 | global
|
| 247 | ## END
|
| 248 | ## OK dash STDOUT:
|
| 249 | local
|
| 250 | ## END
|
| 251 | ## OK dash status: 2
|
| 252 |
|
| 253 | # mksh aborts the function, weird
|
| 254 | ## OK mksh STDOUT:
|
| 255 | local
|
| 256 | global
|
| 257 | ## END
|
| 258 |
|
| 259 | #### assign to readonly variable - errexit
|
| 260 | set -o errexit
|
| 261 | readonly foo=bar
|
| 262 | foo=eggs
|
| 263 | echo "status=$?" # nothing happens
|
| 264 | ## status: 1
|
| 265 | ## OK dash/mksh status: 2
|
| 266 |
|
| 267 | #### Unset a variable
|
| 268 | foo=bar
|
| 269 | echo foo=$foo
|
| 270 | unset foo
|
| 271 | echo foo=$foo
|
| 272 | ## STDOUT:
|
| 273 | foo=bar
|
| 274 | foo=
|
| 275 | ## END
|
| 276 |
|
| 277 | #### Unset exit status
|
| 278 | V=123
|
| 279 | unset V
|
| 280 | echo status=$?
|
| 281 | ## stdout: status=0
|
| 282 |
|
| 283 | #### Unset nonexistent variable
|
| 284 | unset ZZZ
|
| 285 | echo status=$?
|
| 286 | ## stdout: status=0
|
| 287 |
|
| 288 | #### Unset readonly variable
|
| 289 | # dash and zsh abort the whole program. OSH doesn't?
|
| 290 | readonly R=foo
|
| 291 | unset R
|
| 292 | echo status=$?
|
| 293 | ## status: 0
|
| 294 | ## stdout: status=1
|
| 295 | ## OK dash status: 2
|
| 296 | ## OK dash stdout-json: ""
|
| 297 | ## OK zsh status: 1
|
| 298 | ## OK zsh stdout-json: ""
|
| 299 |
|
| 300 | #### Unset a function without -f
|
| 301 | f() {
|
| 302 | echo foo
|
| 303 | }
|
| 304 | f
|
| 305 | unset f
|
| 306 | f
|
| 307 | ## stdout: foo
|
| 308 | ## status: 127
|
| 309 | ## N-I dash/mksh/zsh status: 0
|
| 310 | ## N-I dash/mksh/zsh STDOUT:
|
| 311 | foo
|
| 312 | foo
|
| 313 | ## END
|
| 314 |
|
| 315 | #### Unset has dynamic scope
|
| 316 | f() {
|
| 317 | unset foo
|
| 318 | }
|
| 319 | foo=bar
|
| 320 | echo foo=$foo
|
| 321 | f
|
| 322 | echo foo=$foo
|
| 323 | ## STDOUT:
|
| 324 | foo=bar
|
| 325 | foo=
|
| 326 | ## END
|
| 327 |
|
| 328 | #### Unset and scope (bug #653)
|
| 329 | unlocal() { unset "$@"; }
|
| 330 |
|
| 331 | level2() {
|
| 332 | local hello=yy
|
| 333 |
|
| 334 | echo level2=$hello
|
| 335 | unlocal hello
|
| 336 | echo level2=$hello
|
| 337 | }
|
| 338 |
|
| 339 | level1() {
|
| 340 | local hello=xx
|
| 341 |
|
| 342 | level2
|
| 343 |
|
| 344 | echo level1=$hello
|
| 345 | unlocal hello
|
| 346 | echo level1=$hello
|
| 347 |
|
| 348 | level2
|
| 349 | }
|
| 350 |
|
| 351 | hello=global
|
| 352 | level1
|
| 353 |
|
| 354 | # bash, mksh, yash agree here.
|
| 355 | ## STDOUT:
|
| 356 | level2=yy
|
| 357 | level2=xx
|
| 358 | level1=xx
|
| 359 | level1=global
|
| 360 | level2=yy
|
| 361 | level2=global
|
| 362 | ## END
|
| 363 | ## OK dash/ash/zsh STDOUT:
|
| 364 | level2=yy
|
| 365 | level2=
|
| 366 | level1=xx
|
| 367 | level1=
|
| 368 | level2=yy
|
| 369 | level2=
|
| 370 | ## END
|
| 371 |
|
| 372 | #### unset of local reveals variable in higher scope
|
| 373 |
|
| 374 | # Oil has a RARE behavior here (matching yash and mksh), but at least it's
|
| 375 | # consistent.
|
| 376 |
|
| 377 | x=global
|
| 378 | f() {
|
| 379 | local x=foo
|
| 380 | echo x=$x
|
| 381 | unset x
|
| 382 | echo x=$x
|
| 383 | }
|
| 384 | f
|
| 385 | ## STDOUT:
|
| 386 | x=foo
|
| 387 | x=global
|
| 388 | ## END
|
| 389 | ## OK dash/bash/zsh/ash STDOUT:
|
| 390 | x=foo
|
| 391 | x=
|
| 392 | ## END
|
| 393 |
|
| 394 | #### Unset invalid variable name
|
| 395 | unset %
|
| 396 | echo status=$?
|
| 397 | ## STDOUT:
|
| 398 | status=2
|
| 399 | ## END
|
| 400 | ## OK bash/mksh STDOUT:
|
| 401 | status=1
|
| 402 | ## END
|
| 403 | ## BUG zsh STDOUT:
|
| 404 | status=0
|
| 405 | ## END
|
| 406 | # dash does a hard failure!
|
| 407 | ## OK dash stdout-json: ""
|
| 408 | ## OK dash status: 2
|
| 409 |
|
| 410 | #### Unset nonexistent variable
|
| 411 | unset _nonexistent__
|
| 412 | echo status=$?
|
| 413 | ## STDOUT:
|
| 414 | status=0
|
| 415 | ## END
|
| 416 |
|
| 417 | #### Unset -v
|
| 418 | foo() {
|
| 419 | echo "function foo"
|
| 420 | }
|
| 421 | foo=bar
|
| 422 | unset -v foo
|
| 423 | echo foo=$foo
|
| 424 | foo
|
| 425 | ## STDOUT:
|
| 426 | foo=
|
| 427 | function foo
|
| 428 | ## END
|
| 429 |
|
| 430 | #### Unset -f
|
| 431 | foo() {
|
| 432 | echo "function foo"
|
| 433 | }
|
| 434 | foo=bar
|
| 435 | unset -f foo
|
| 436 | echo foo=$foo
|
| 437 | foo
|
| 438 | echo status=$?
|
| 439 | ## STDOUT:
|
| 440 | foo=bar
|
| 441 | status=127
|
| 442 | ## END
|
| 443 |
|
| 444 | #### Unset array member
|
| 445 | a=(x y z)
|
| 446 | unset 'a[1]'
|
| 447 | echo status=$?
|
| 448 | echo "${a[@]}" len="${#a[@]}"
|
| 449 | ## STDOUT:
|
| 450 | status=0
|
| 451 | x z len=2
|
| 452 | ## END
|
| 453 | ## N-I dash status: 2
|
| 454 | ## N-I dash stdout-json: ""
|
| 455 | ## OK zsh STDOUT:
|
| 456 | status=0
|
| 457 | y z len=3
|
| 458 | ## END
|
| 459 |
|
| 460 | #### Unset errors
|
| 461 | unset undef
|
| 462 | echo status=$?
|
| 463 |
|
| 464 | a=(x y z)
|
| 465 | unset 'a[99]' # out of range
|
| 466 | echo status=$?
|
| 467 |
|
| 468 | unset 'not_array[99]' # not an array
|
| 469 | echo status=$?
|
| 470 |
|
| 471 | ## STDOUT:
|
| 472 | status=0
|
| 473 | status=0
|
| 474 | status=0
|
| 475 | ## END
|
| 476 | ## N-I dash status: 2
|
| 477 | ## N-I dash STDOUT:
|
| 478 | status=0
|
| 479 | ## END
|
| 480 |
|
| 481 | #### Unset wrong type
|
| 482 | case $SH in (mksh) exit ;; esac
|
| 483 |
|
| 484 | declare undef
|
| 485 | unset -v 'undef[1]'
|
| 486 | echo undef $?
|
| 487 | unset -v 'undef["key"]'
|
| 488 | echo undef $?
|
| 489 |
|
| 490 | declare a=(one two)
|
| 491 | unset -v 'a[1]'
|
| 492 | echo array $?
|
| 493 |
|
| 494 | #shopt -s strict_arith || true
|
| 495 | # In Oil, the string 'key' is converted to an integer, which is 0, unless
|
| 496 | # strict_arith is on, when it fails.
|
| 497 | unset -v 'a["key"]'
|
| 498 | echo array $?
|
| 499 |
|
| 500 | declare -A A=(['key']=val)
|
| 501 | unset -v 'A[1]'
|
| 502 | echo assoc $?
|
| 503 | unset -v 'A["key"]'
|
| 504 | echo assoc $?
|
| 505 |
|
| 506 | ## STDOUT:
|
| 507 | undef 1
|
| 508 | undef 1
|
| 509 | array 0
|
| 510 | array 1
|
| 511 | assoc 0
|
| 512 | assoc 0
|
| 513 | ## END
|
| 514 | ## OK osh STDOUT:
|
| 515 | undef 1
|
| 516 | undef 1
|
| 517 | array 0
|
| 518 | array 0
|
| 519 | assoc 0
|
| 520 | assoc 0
|
| 521 | ## END
|
| 522 | ## BUG zsh STDOUT:
|
| 523 | undef 0
|
| 524 | undef 1
|
| 525 | array 0
|
| 526 | array 1
|
| 527 | assoc 0
|
| 528 | assoc 0
|
| 529 | ## END
|
| 530 | ## N-I dash/mksh stdout-json: ""
|
| 531 | ## N-I dash status: 2
|
| 532 |
|
| 533 |
|
| 534 | #### unset -v assoc (related to issue #661)
|
| 535 |
|
| 536 | case $SH in (dash|mksh|zsh) return; esac
|
| 537 |
|
| 538 | declare -A dict=()
|
| 539 | key=1],a[1
|
| 540 | dict["$key"]=foo
|
| 541 | echo ${#dict[@]}
|
| 542 | echo keys=${!dict[@]}
|
| 543 | echo vals=${dict[@]}
|
| 544 |
|
| 545 | unset -v 'dict["$key"]'
|
| 546 | echo ${#dict[@]}
|
| 547 | echo keys=${!dict[@]}
|
| 548 | echo vals=${dict[@]}
|
| 549 | ## STDOUT:
|
| 550 | 1
|
| 551 | keys=1],a[1
|
| 552 | vals=foo
|
| 553 | 0
|
| 554 | keys=
|
| 555 | vals=
|
| 556 | ## END
|
| 557 | ## N-I dash/mksh/zsh stdout-json: ""
|
| 558 |
|
| 559 | #### unset assoc errors
|
| 560 |
|
| 561 | case $SH in (dash|mksh) return; esac
|
| 562 |
|
| 563 | declare -A assoc=(['key']=value)
|
| 564 | unset 'assoc["nonexistent"]'
|
| 565 | echo status=$?
|
| 566 |
|
| 567 | ## STDOUT:
|
| 568 | status=0
|
| 569 | ## END
|
| 570 | ## N-I dash/mksh stdout-json: ""
|
| 571 |
|
| 572 |
|
| 573 | #### Unset array member with dynamic parsing
|
| 574 |
|
| 575 | i=1
|
| 576 | a=(w x y z)
|
| 577 | unset 'a[ i - 1 ]' a[i+1] # note: can't have space between a and [
|
| 578 | echo status=$?
|
| 579 | echo "${a[@]}" len="${#a[@]}"
|
| 580 | ## STDOUT:
|
| 581 | status=0
|
| 582 | x z len=2
|
| 583 | ## END
|
| 584 | ## N-I dash status: 2
|
| 585 | ## N-I dash stdout-json: ""
|
| 586 | ## N-I zsh status: 1
|
| 587 | ## N-I zsh stdout-json: ""
|
| 588 |
|
| 589 | #### Use local twice
|
| 590 | f() {
|
| 591 | local foo=bar
|
| 592 | local foo
|
| 593 | echo $foo
|
| 594 | }
|
| 595 | f
|
| 596 | ## stdout: bar
|
| 597 | ## BUG zsh STDOUT:
|
| 598 | foo=bar
|
| 599 | bar
|
| 600 | ## END
|
| 601 |
|
| 602 | #### Local without variable is still unset!
|
| 603 | set -o nounset
|
| 604 | f() {
|
| 605 | local foo
|
| 606 | echo "[$foo]"
|
| 607 | }
|
| 608 | f
|
| 609 | ## stdout-json: ""
|
| 610 | ## status: 1
|
| 611 | ## OK dash status: 2
|
| 612 | # zsh doesn't support nounset?
|
| 613 | ## BUG zsh stdout: []
|
| 614 | ## BUG zsh status: 0
|
| 615 |
|
| 616 | #### local after readonly
|
| 617 | f() {
|
| 618 | readonly y
|
| 619 | local x=1 y=$(( x ))
|
| 620 | echo y=$y
|
| 621 | }
|
| 622 | f
|
| 623 | echo y=$y
|
| 624 | ## status: 1
|
| 625 | ## stdout-json: ""
|
| 626 |
|
| 627 | ## OK dash status: 2
|
| 628 |
|
| 629 | ## BUG mksh status: 0
|
| 630 | ## BUG mksh STDOUT:
|
| 631 | y=0
|
| 632 | y=
|
| 633 | ## END
|
| 634 |
|
| 635 | ## BUG bash status: 0
|
| 636 | ## BUG bash STDOUT:
|
| 637 | y=
|
| 638 | y=
|
| 639 | ## END
|
| 640 |
|
| 641 | #### unset a[-1] (bf.bash regression)
|
| 642 | case $SH in (dash|zsh) exit ;; esac
|
| 643 |
|
| 644 | a=(1 2 3)
|
| 645 | unset a[-1]
|
| 646 | echo len=${#a[@]}
|
| 647 |
|
| 648 | echo last=${a[-1]}
|
| 649 | (( last = a[-1] ))
|
| 650 | echo last=$last
|
| 651 |
|
| 652 | (( a[-1] = 42 ))
|
| 653 | echo "${a[@]}"
|
| 654 |
|
| 655 | ## STDOUT:
|
| 656 | len=2
|
| 657 | last=2
|
| 658 | last=2
|
| 659 | 1 42
|
| 660 | ## END
|
| 661 | ## BUG mksh STDOUT:
|
| 662 | len=3
|
| 663 | last=
|
| 664 | last=0
|
| 665 | 1 2 3 42
|
| 666 | ## END
|
| 667 | ## N-I dash/zsh stdout-json: ""
|
| 668 |
|
| 669 |
|
| 670 | #### unset a[-1] in sparse array (bf.bash regression)
|
| 671 | case $SH in (dash|zsh) exit ;; esac
|
| 672 |
|
| 673 | a=(0 1 2 3 4)
|
| 674 | unset a[1]
|
| 675 | unset a[4]
|
| 676 | echo len=${#a[@]} a=${a[@]}
|
| 677 | echo last=${a[-1]} second=${a[-2]} third=${a[-3]}
|
| 678 |
|
| 679 | echo ---
|
| 680 | unset a[3]
|
| 681 | echo len=${#a[@]} a=${a[@]}
|
| 682 | echo last=${a[-1]} second=${a[-2]} third=${a[-3]}
|
| 683 |
|
| 684 | ## STDOUT:
|
| 685 | len=3 a=0 2 3
|
| 686 | last=3 second=2 third=
|
| 687 | ---
|
| 688 | len=2 a=0 2
|
| 689 | last=2 second= third=0
|
| 690 | ## END
|
| 691 |
|
| 692 | ## BUG mksh STDOUT:
|
| 693 | len=3 a=0 2 3
|
| 694 | last= second= third=
|
| 695 | ---
|
| 696 | len=2 a=0 2
|
| 697 | last= second= third=
|
| 698 | ## END
|
| 699 |
|
| 700 | ## N-I dash/zsh stdout-json: ""
|
| 701 |
|