tests/threads.pure.lisp

   1 ;;;; miscellaneous tests of thread stuff
   2
   3 ;;;; This software is part of the SBCL system. See the README file for
   4 ;;;; more information.
   5 ;;;;
   6 ;;;; While most of SBCL is derived from the CMU CL system, the test
   7 ;;;; files (like this one) were written from scratch after the fork
   8 ;;;; from CMU CL.
   9 ;;;
  10 ;;;; This software is in the public domain and is provided with
  11 ;;;; absoluely no warranty. See the COPYING and CREDITS files for
  12 ;;;; more information.
  13
  14 (in-package :cl-user)
  15
  16 (defpackage :thread-test
  17   (:use :cl :sb-thread :sb-ext))
  18
  19 (in-package :thread-test)
  20
  21 (use-package :test-util)
  22
  23 (with-test (:name atomic-update)
  24   (let ((x (cons :count 0)))
  25     (mapc #'sb-thread:join-thread
  26           (loop repeat 1000
  27                 collect (sb-thread:make-thread
  28                          (lambda ()
  29                            (loop repeat 1000
  30                                  do (atomic-update (cdr x) #'1+)
  31                                     (sleep 0.00001))))))
  32     (assert (equal x '(:count . 1000000)))))
  33
  34 (with-test (:name mutex-owner)
  35   ;; Make sure basics are sane on unithreaded ports as well
  36   (let ((mutex (make-mutex)))
  37     (get-mutex mutex)
  38     (assert (eq *current-thread* (mutex-value mutex)))
  39     (handler-bind ((warning #'error))
  40       (release-mutex mutex))
  41     (assert (not (mutex-value mutex)))))
  42
  43 ;;; Terminating a thread that's waiting for the terminal.
  44
  45 #+sb-thread
  46 (let ((thread (make-thread (lambda ()
  47                              (sb-thread::get-foreground)))))
  48   (sleep 1)
  49   (assert (thread-alive-p thread))
  50   (terminate-thread thread)
  51   (sleep 1)
  52   (assert (not (thread-alive-p thread))))
  53
  54 ;;; Condition-wait should not be interruptible under WITHOUT-INTERRUPTS
  55
  56 (with-test (:name without-interrupts+condition-wait
  57             :skipped-on '(not :sb-thread))
  58   (let* ((lock (make-mutex))
  59          (queue (make-waitqueue))
  60          (thread (make-thread (lambda ()
  61                                 (sb-sys:without-interrupts
  62                                   (with-mutex (lock)
  63                                     (condition-wait queue lock)))))))
  64     (sleep 1)
  65     (assert (thread-alive-p thread))
  66     (terminate-thread thread)
  67     (sleep 1)
  68     (assert (thread-alive-p thread))
  69     (condition-notify queue)
  70     (sleep 1)
  71     (assert (not (thread-alive-p thread)))))
  72
  73 ;;; GET-MUTEX should not be interruptible under WITHOUT-INTERRUPTS
  74
  75 (with-test (:name without-interrupts+get-mutex :skipped-on '(not :sb-thread))
  76   (let* ((lock (make-mutex))
  77          (bar (progn (get-mutex lock) nil))
  78          (thread (make-thread (lambda ()
  79                                 (sb-sys:without-interrupts
  80                                     (with-mutex (lock)
  81                                       (setf bar t)))))))
  82     (sleep 1)
  83     (assert (thread-alive-p thread))
  84     (terminate-thread thread)
  85     (sleep 1)
  86     (assert (thread-alive-p thread))
  87     (release-mutex lock)
  88     (sleep 1)
  89     (assert (not (thread-alive-p thread)))
  90     (assert (eq :aborted (join-thread thread :default :aborted)))
  91     (assert bar)))
  92
  93 (with-test (:name parallel-find-class :skipped-on '(not :sb-thread))
  94   (let* ((oops nil)
  95          (threads (loop repeat 10
  96                         collect (make-thread (lambda ()
  97                                                (handler-case
  98                                                    (loop repeat 10000
  99                                                          do (find-class (gensym) nil))
 100                                                  (serious-condition ()
 101                                                    (setf oops t))))))))
 102     (mapcar #'sb-thread:join-thread threads)
 103     (assert (not oops))))
 104
 105 (with-test (:name :semaphore-multiple-waiters :skipped-on '(not :sb-thread))
 106   (let ((semaphore (make-semaphore :name "test sem")))
 107     (labels ((make-readers (n i)
 108                (values
 109                 (loop for r from 0 below n
 110                       collect
 111                       (sb-thread:make-thread
 112                        (lambda ()
 113                          (let ((sem semaphore))
 114                            (dotimes (s i)
 115                              (sb-thread:wait-on-semaphore sem))))
 116                        :name "reader"))
 117                 (* n i)))
 118              (make-writers (n readers i)
 119                (let ((j (* readers i)))
 120                  (multiple-value-bind (k rem) (truncate j n)
 121                    (values
 122                     (let ((writers
 123                            (loop for w from 0 below n
 124                                  collect
 125                                  (sb-thread:make-thread
 126                                   (lambda ()
 127                                     (let ((sem semaphore))
 128                                       (dotimes (s k)
 129                                         (sb-thread:signal-semaphore sem))))
 130                                   :name "writer"))))
 131                       (assert (zerop rem))
 132                       writers)
 133                     (+ rem (* n k))))))
 134              (test (r w n)
 135                (multiple-value-bind (readers x) (make-readers r n)
 136                  (assert (= (length readers) r))
 137                  (multiple-value-bind (writers y) (make-writers w r n)
 138                    (assert (= (length writers) w))
 139                    (assert (= x y))
 140                    (mapc #'sb-thread:join-thread writers)
 141                    (mapc #'sb-thread:join-thread readers)
 142                    (assert (zerop (sb-thread:semaphore-count semaphore)))
 143                    (values)))))
 144       (assert
 145        (eq :ok
 146            (handler-case
 147                (sb-ext:with-timeout 10
 148                  (test 1 1 100)
 149                  (test 2 2 10000)
 150                  (test 4 2 10000)
 151                  (test 4 2 10000)
 152                  (test 10 10 10000)
 153                  (test 10 1 10000)
 154                  :ok)
 155              (sb-ext:timeout ()
 156                :timeout)))))))
 157
 158 ;;;; Printing waitqueues
 159
 160 (with-test (:name :waitqueue-circle-print :skipped-on '(not :sb-thread))
 161   (let* ((*print-circle* nil)
 162          (lock (sb-thread:make-mutex))
 163          (wq (sb-thread:make-waitqueue)))
 164     (sb-thread:with-recursive-lock (lock)
 165       (sb-thread:condition-notify wq))
 166     ;; Used to blow stack due to recursive structure.
 167     (assert (princ-to-string wq))))
 168
 169 ;;;; SYMBOL-VALUE-IN-THREAD
 170
 171 (with-test (:name symbol-value-in-thread.1)
 172   (let ((* (cons t t)))
 173     (assert (eq * (symbol-value-in-thread '* *current-thread*)))
 174     (setf (symbol-value-in-thread '* *current-thread*) 123)
 175     (assert (= 123 (symbol-value-in-thread '* *current-thread*)))
 176     (assert (= 123 *))))
 177
 178 (with-test (:name symbol-value-in-thread.2 :skipped-on '(not :sb-thread))
 179   (let* ((parent *current-thread*)
 180          (semaphore (make-semaphore))
 181          (child (make-thread (lambda ()
 182                                (wait-on-semaphore semaphore)
 183                                (let ((old (symbol-value-in-thread 'this-is-new parent)))
 184                                  (setf (symbol-value-in-thread 'this-is-new parent) :from-child)
 185                                  old)))))
 186     (progv '(this-is-new) '(42)
 187       (signal-semaphore semaphore)
 188       (assert (= 42 (join-thread child)))
 189       (assert (eq :from-child (symbol-value 'this-is-new))))))
 190
 191 ;;; Disabled on Darwin due to deadlocks caused by apparent OS specific deadlocks,
 192 ;;; wich _appear_ to be caused by malloc() and free() not being thread safe: an
 193 ;;; interrupted malloc in one thread can apparently block a free in another.
 194 (with-test (:name symbol-value-in-thread.3
 195             :skipped-on '(not :sb-thread))
 196   (let* ((parent *current-thread*)
 197          (semaphore (make-semaphore))
 198          (running t)
 199          (noise (make-thread (lambda ()
 200                                (loop while running
 201                                      do (setf * (make-array 1024))
 202                                      ;; Busy-wait a bit so we don't TOTALLY flood the
 203                                      ;; system with GCs: a GC occurring in the middle of
 204                                      ;; S-V-I-T causes it to start over -- we want that
 205                                      ;; to occur occasionally, but not _all_ the time.
 206                                         (loop repeat (random 128)
 207                                               do (setf ** *)))))))
 208     (write-string "; ")
 209     (dotimes (i 15000)
 210       (when (zerop (mod i 200))
 211         (write-char #\.)
 212         (force-output))
 213       (let* ((mom-mark (cons t t))
 214              (kid-mark (cons t t))
 215              (child (make-thread (lambda ()
 216                                    (wait-on-semaphore semaphore)
 217                                    (let ((old (symbol-value-in-thread 'this-is-new parent)))
 218                                      (setf (symbol-value-in-thread 'this-is-new parent)
 219                                            (make-array 24 :initial-element kid-mark))
 220                                      old)))))
 221         (progv '(this-is-new) (list (make-array 24 :initial-element mom-mark))
 222           (signal-semaphore semaphore)
 223           (assert (eq mom-mark (aref (join-thread child) 0)))
 224           (assert (eq kid-mark (aref (symbol-value 'this-is-new) 0))))))
 225     (setf running nil)
 226     (join-thread noise)))
 227
 228 (with-test (:name symbol-value-in-thread.4 :skipped-on '(not :sb-thread))
 229   (let* ((parent *current-thread*)
 230          (semaphore (make-semaphore))
 231          (child (make-thread (lambda ()
 232                                (wait-on-semaphore semaphore)
 233                                (symbol-value-in-thread 'this-is-new parent nil)))))
 234     (signal-semaphore semaphore)
 235     (assert (equal '(nil nil) (multiple-value-list (join-thread child))))))
 236
 237 (with-test (:name symbol-value-in-thread.5 :skipped-on '(not :sb-thread))
 238   (let* ((parent *current-thread*)
 239          (semaphore (make-semaphore))
 240          (child (make-thread (lambda ()
 241                                (wait-on-semaphore semaphore)
 242                                (handler-case
 243                                    (symbol-value-in-thread 'this-is-new parent)
 244                                  (symbol-value-in-thread-error (e)
 245                                    (list (thread-error-thread e)
 246                                          (cell-error-name e)
 247                                          (sb-thread::symbol-value-in-thread-error-info e))))))))
 248     (signal-semaphore semaphore)
 249     (assert (equal (list *current-thread* 'this-is-new (list :read :unbound-in-thread))
 250                    (join-thread child)))))
 251
 252 (with-test (:name symbol-value-in-thread.6 :skipped-on '(not :sb-thread))
 253   (let* ((parent *current-thread*)
 254          (semaphore (make-semaphore))
 255          (name (gensym))
 256          (child (make-thread (lambda ()
 257                                (wait-on-semaphore semaphore)
 258                                (handler-case
 259                                    (setf (symbol-value-in-thread name parent) t)
 260                                  (symbol-value-in-thread-error (e)
 261                                    (list (thread-error-thread e)
 262                                          (cell-error-name e)
 263                                          (sb-thread::symbol-value-in-thread-error-info e))))))))
 264     (signal-semaphore semaphore)
 265     (let ((res (join-thread child))
 266           (want (list *current-thread* name (list :write :no-tls-value))))
 267       (unless (equal res want)
 268         (error "wanted ~S, got ~S" want res)))))
 269
 270 (with-test (:name symbol-value-in-thread.7 :skipped-on '(not :sb-thread))
 271   (let ((child (make-thread (lambda ())))
 272         (error-occurred nil))
 273     (join-thread child)
 274     (handler-case
 275         (symbol-value-in-thread 'this-is-new child)
 276       (symbol-value-in-thread-error (e)
 277         (setf error-occurred t)
 278         (assert (eq child (thread-error-thread e)))
 279         (assert (eq 'this-is-new (cell-error-name e)))
 280         (assert (equal (list :read :thread-dead)
 281                        (sb-thread::symbol-value-in-thread-error-info e)))))
 282     (assert error-occurred)))
 283
 284 (with-test (:name symbol-value-in-thread.8  :skipped-on '(not :sb-thread))
 285   (let ((child (make-thread (lambda ())))
 286         (error-occurred nil))
 287     (join-thread child)
 288     (handler-case
 289         (setf (symbol-value-in-thread 'this-is-new child) t)
 290       (symbol-value-in-thread-error (e)
 291         (setf error-occurred t)
 292         (assert (eq child (thread-error-thread e)))
 293         (assert (eq 'this-is-new (cell-error-name e)))
 294         (assert (equal (list :write :thread-dead)
 295                        (sb-thread::symbol-value-in-thread-error-info e)))))
 296     (assert error-occurred)))
 297
 298 (with-test (:name deadlock-detection.1  :skipped-on '(not :sb-thread))
 299   (loop
 300     repeat 1000
 301     do (flet ((test (ma mb sa sb)
 302                 (lambda ()
 303                   (handler-case
 304                       (sb-thread:with-mutex (ma)
 305                         (sb-thread:signal-semaphore sa)
 306                         (sb-thread:wait-on-semaphore sb)
 307                         (sb-thread:with-mutex (mb)
 308                           :ok))
 309                     (sb-thread:thread-deadlock (e)
 310                       (princ e)
 311                       :deadlock)))))
 312          (let* ((m1 (sb-thread:make-mutex :name "M1"))
 313                 (m2 (sb-thread:make-mutex :name "M2"))
 314                 (s1 (sb-thread:make-semaphore :name "S1"))
 315                 (s2 (sb-thread:make-semaphore :name "S2"))
 316                 (t1 (sb-thread:make-thread (test m1 m2 s1 s2) :name "T1"))
 317                 (t2 (sb-thread:make-thread (test m2 m1 s2 s1) :name "T2")))
 318            ;; One will deadlock, and the other will then complete normally.
 319            (let ((res (list (sb-thread:join-thread t1)
 320                             (sb-thread:join-thread t2))))
 321              (assert (or (equal '(:deadlock :ok) res)
 322                          (equal '(:ok :deadlock) res))))))))
 323
 324 (with-test (:name deadlock-detection.2 :skipped-on '(not :sb-thread))
 325   (let* ((m1 (sb-thread:make-mutex :name "M1"))
 326          (m2 (sb-thread:make-mutex :name "M2"))
 327          (s1 (sb-thread:make-semaphore :name "S1"))
 328          (s2 (sb-thread:make-semaphore :name "S2"))
 329          (t1 (sb-thread:make-thread
 330               (lambda ()
 331                 (sb-thread:with-mutex (m1)
 332                   (sb-thread:signal-semaphore s1)
 333                   (sb-thread:wait-on-semaphore s2)
 334                   (sb-thread:with-mutex (m2)
 335                     :ok)))
 336               :name "T1")))
 337     (prog (err)
 338      :retry
 339        (handler-bind ((sb-thread:thread-deadlock
 340                        (lambda (e)
 341                          (unless err
 342                            ;; Make sure we can print the condition
 343                            ;; while it's active
 344                            (let ((*print-circle* nil))
 345                              (setf err (princ-to-string e)))
 346                            (go :retry)))))
 347          (when err
 348            (sleep 1))
 349          (assert (eq :ok (sb-thread:with-mutex (m2)
 350                            (unless err
 351                              (sb-thread:signal-semaphore s2)
 352                              (sb-thread:wait-on-semaphore s1)
 353                              (sleep 1))
 354                            (sb-thread:with-mutex (m1)
 355                              :ok)))))
 356        (assert (stringp err)))
 357     (assert (eq :ok (sb-thread:join-thread t1)))))
 358
 359 (with-test (:name deadlock-detection.3  :skipped-on '(not :sb-thread))
 360   (let* ((m1 (sb-thread:make-mutex :name "M1"))
 361          (m2 (sb-thread:make-mutex :name "M2"))
 362          (s1 (sb-thread:make-semaphore :name "S1"))
 363          (s2 (sb-thread:make-semaphore :name "S2"))
 364          (t1 (sb-thread:make-thread
 365               (lambda ()
 366                 (sb-thread:with-mutex (m1)
 367                   (sb-thread:signal-semaphore s1)
 368                   (sb-thread:wait-on-semaphore s2)
 369                   (sb-thread:with-mutex (m2)
 370                     :ok)))
 371               :name "T1")))
 372     ;; Currently we don't consider it a deadlock
 373     ;; if there is a timeout in the chain.
 374     (assert (eq :deadline
 375                 (handler-case
 376                     (sb-thread:with-mutex (m2)
 377                       (sb-thread:signal-semaphore s2)
 378                       (sb-thread:wait-on-semaphore s1)
 379                       (sleep 1)
 380                       (sb-sys:with-deadline (:seconds 0.1)
 381                         (sb-thread:with-mutex (m1)
 382                           :ok)))
 383                   (sb-sys:deadline-timeout ()
 384                     :deadline)
 385                   (sb-thread:thread-deadlock ()
 386                     :deadlock))))
 387     (assert (eq :ok (join-thread t1)))))
 388
 389 #+sb-thread
 390 (with-test (:name :pass-arguments-to-thread)
 391   (assert (= 3 (join-thread (make-thread #'+ :arguments '(1 2))))))
 392
 393 #+sb-thread
 394 (with-test (:name :pass-atom-to-thread)
 395   (assert (= 1/2 (join-thread (make-thread #'/ :arguments 2)))))
 396
 397 #+sb-thread
 398 (with-test (:name :pass-nil-to-thread)
 399   (assert (= 1 (join-thread (make-thread #'* :arguments '())))))
 400
 401 #+sb-thread
 402 (with-test (:name :pass-nothing-to-thread)
 403   (assert (= 1 (join-thread (make-thread #'*)))))
 404
 405 #+sb-thread
 406 (with-test (:name :pass-improper-list-to-thread)
 407   (multiple-value-bind (value error)
 408       (ignore-errors (make-thread #'+ :arguments '(1 . 1)))
 409     (when value
 410       (join-thread value))
 411     (assert (and (null value)
 412                  error))))
 413
 414 (with-test (:name (:wait-for :basics))
 415   (assert (not (sb-ext:wait-for nil :timeout 0.1)))
 416   (assert (eql 42 (sb-ext:wait-for 42)))
 417   (let ((n 0))
 418     (assert (eql 100 (sb-ext:wait-for (when (= 100 (incf n))
 419                                         n))))))
 420
 421 (with-test (:name (:wait-for :deadline))
 422   (assert (eq :ok
 423               (sb-sys:with-deadline (:seconds 10)
 424                 (assert (not (sb-ext:wait-for nil :timeout 0.1)))
 425                 :ok)))
 426   (assert (eq :deadline
 427               (handler-case
 428                   (sb-sys:with-deadline (:seconds 0.1)
 429                     (sb-ext:wait-for nil :timeout 10)
 430                     (error "oops"))
 431                 (sb-sys:deadline-timeout () :deadline)))))
 432
 433 (with-test (:name (:condition-wait :timeout :one-thread))
 434   (let ((mutex (make-mutex))
 435         (waitqueue (make-waitqueue)))
 436     (assert (not (with-mutex (mutex)
 437                    (condition-wait waitqueue mutex :timeout 0.01))))))
 438
 439 (with-test (:name (:condition-wait :timeout :many-threads)
 440             :skipped-on '(not :sb-thread))
 441   (let* ((mutex (make-mutex))
 442          (waitqueue (make-waitqueue))
 443          (sem (make-semaphore))
 444          (data nil)
 445          (workers
 446            (loop repeat 100
 447                  collect (make-thread
 448                           (lambda ()
 449                             (wait-on-semaphore sem)
 450                             (block thread
 451                               (with-mutex (mutex)
 452                                 (loop until data
 453                                       do (or (condition-wait waitqueue mutex :timeout 0.01)
 454                                              (return-from thread nil)))
 455                                 (assert (eq t (pop data)))
 456                                 t)))))))
 457     (loop repeat 50
 458           do (with-mutex (mutex)
 459                (push t data)
 460                (condition-notify waitqueue)))
 461     (signal-semaphore sem 100)
 462     (let ((ok (count-if #'join-thread workers)))
 463       (unless (eql 50 ok)
 464         (error "Wanted 50, got ~S" ok)))))
 465
 466 (with-test (:name (:wait-on-semaphore :timeout :one-thread))
 467   (let ((sem (make-semaphore))
 468         (n 0))
 469     (signal-semaphore sem 10)
 470     (loop repeat 100
 471           do (when (wait-on-semaphore sem :timeout 0.001)
 472                (incf n)))
 473     (assert (= n 10))))
 474
 475 (with-test (:name (:wait-on-semaphore :timeout :many-threads)
 476             :skipped-on '(not :sb-thread))
 477   (let* ((sem (make-semaphore))
 478          (threads
 479            (progn
 480              (signal-semaphore sem 10)
 481              (loop repeat 100
 482                    collect (make-thread
 483                             (lambda ()
 484                               (sleep (random 0.02))
 485                               (wait-on-semaphore sem :timeout 0.5)))))))
 486     (loop repeat 5
 487           do (signal-semaphore sem 2))
 488     (let ((ok (count-if #'join-thread threads)))
 489       (unless (eql 20 ok)
 490         (error "Wanted 20, got ~S" ok)))))
 491
 492 (with-test (:name (:join-thread :timeout)
 493             :skipped-on '(not :sb-thread))
 494   (assert (eq :error
 495               (handler-case
 496                   (join-thread (make-thread (lambda () (sleep 10))) :timeout 0.01)
 497                 (join-thread-error ()
 498                   :error))))
 499   (let ((cookie (cons t t)))
 500     (assert (eq cookie
 501                 (join-thread (make-thread (lambda () (sleep 10)))
 502                              :timeout 0.01
 503                              :default cookie)))))
 504
 505 (with-test (:name (:semaphore-notification :wait-on-semaphore)
 506             :skipped-on '(not :sb-thread))
 507   (let ((sem (make-semaphore))
 508         (ok nil)
 509         (n 0))
 510     (flet ((critical ()
 511              (let ((note (make-semaphore-notification)))
 512                (sb-sys:without-interrupts
 513                  (unwind-protect
 514                       (progn
 515                         (sb-sys:with-local-interrupts
 516                           (wait-on-semaphore sem :notification note)
 517                           (sleep (random 0.1)))
 518                         (incf n))
 519                    ;; Re-increment on exit if we decremented it.
 520                    (when (semaphore-notification-status note)
 521                      (signal-semaphore sem))
 522                    ;; KLUDGE: Prevent interrupts after this point from
 523                    ;; unwinding us, so that we can reason about the counts.
 524                    #+sb-thread
 525                    (sb-thread::block-deferrable-signals))))))
 526       (let* ((threads (loop for i from 1 upto 100
 527                             collect (make-thread #'critical :name (format nil "T~A" i))))
 528              (safe nil)
 529              (unsafe nil)
 530              (interruptor (make-thread (lambda ()
 531                                          (loop until ok)
 532                                          (let (x)
 533                                            (dolist (thread threads)
 534                                              (cond (x
 535                                                     (push thread unsafe)
 536                                                     (sleep (random 0.1))
 537                                                     (ignore-errors
 538                                                      (terminate-thread thread)))
 539                                                    (t
 540                                                     (push thread safe)))
 541                                              (setf x (not x))))))))
 542         (signal-semaphore sem)
 543         (setf ok t)
 544         (join-thread interruptor)
 545         (mapc #'join-thread safe)
 546         (let ((k (count-if (lambda (th)
 547                              (join-thread th :default nil))
 548                            unsafe)))
 549           (assert (= n (+ k (length safe))))
 550           (assert unsafe))))))
 551
 552 (with-test (:name (:semaphore-notification :try-sempahore)
 553             :skipped-on '(not :sb-thread))
 554   (let* ((sem (make-semaphore))
 555          (note (make-semaphore-notification)))
 556     (try-semaphore sem 1 note)
 557     (assert (not (semaphore-notification-status note)))
 558     (signal-semaphore sem)
 559     (try-semaphore sem 1 note)
 560     (assert (semaphore-notification-status note))))
 561
 562 (with-test (:name (:return-from-thread :normal-thread))
 563   (let* ((thread (make-thread (lambda ()
 564                                 (return-from-thread (values 1 2 3))
 565                                 :foo)))
 566          (values (multiple-value-list (join-thread thread))))
 567     (unless (equal (list 1 2 3) values)
 568       (error "got ~S, wanted (1 2 3)" values))))
 569
 570 (with-test (:name (:return-from-thread :main-thread))
 571   (assert (main-thread-p))
 572   (assert (eq :oops
 573               (handler-case
 574                   (return-from-thread t)
 575                 (thread-error ()
 576                   :oops)))))
 577
 578 (with-test (:name (:abort-thread :normal-thread))
 579   (let ((thread (make-thread (lambda ()
 580                                (abort-thread)
 581                                :foo))))
 582     (assert (eq :aborted! (join-thread thread :default :aborted!)))))
 583
 584 (with-test (:name (:abort-thread :main-thread))
 585   (assert (main-thread-p))
 586   (assert (eq :oops
 587               (handler-case
 588                   (abort-thread)
 589                 (thread-error ()
 590                   :oops)))))
 591