# Commands covered:  (test)thread

 #

 # This file contains a collection of tests for one or more of the Tcl

 # built-in commands.  Sourcing this file into Tcl runs the tests and

 # generates output for errors.  No output means no errors were found.

 #

 # Copyright (c) 1996 Sun Microsystems, Inc.

 # Copyright (c) 1998-1999 by Scriptics Corporation.

 #

 # See the file "license.terms" for information on usage and redistribution

 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.

 #

 # RCS: @(#) $Id: thread.test,v 1.10 2000/05/02 22:02:36 kupries Exp $

 if {[lsearch [namespace children] ::tcltest] == -1} {

     package require tcltest

     namespace import -force ::tcltest::*

 }

 # Some tests require the testthread command

 set ::tcltest::testConstraints(testthread) \

 	[expr {[info commands testthread] != {}}]

 if {$::tcltest::testConstraints(testthread)} {

     testthread errorproc ThreadError

     proc ThreadError {id info} {

 	global threadError

 	set threadError $info

     }

     proc ThreadNullError {id info} {

 	# ignore

     }

 }

 test thread-1.1 {Tcl_ThreadObjCmd: no args} {testthread} {

     list [catch {testthread} msg] $msg

 } {1 {wrong # args: should be "testthread option ?args?"}}

 test thread-1.2 {Tcl_ThreadObjCmd: bad option} {testthread} {

     list [catch {testthread foo} msg] $msg

 } {1 {bad option "foo": must be create, exit, id, join, names, send, wait, or errorproc}}

 test thread-1.3 {Tcl_ThreadObjCmd: initial thread list} {testthread} {

     list [threadReap] [llength [testthread names]]

 } {1 1}

 test thread-1.4 {Tcl_ThreadObjCmd: thread create } {testthread} {

     threadReap

     set serverthread [testthread create]

     update

     set numthreads [llength [testthread names]]

     threadReap

     set numthreads

 } {2}

 test thread-1.5 {Tcl_ThreadObjCmd: thread create one shot} {testthread} {

     threadReap

     testthread create {set x 5}

     foreach try {0 1 2 4 5 6} {

 	# Try various ways to yield

 	update

 	after 10

 	set l [llength [testthread names]]

 	if {$l == 1} {

 	    break

 	}

     }

     threadReap

     set l

 } {1}

 test thread-1.6 {Tcl_ThreadObjCmd: thread exit} {testthread} {

     threadReap

     testthread create {testthread exit}

     update

     after 10

     set result [llength [testthread names]]

     threadReap

     set result

 } {1}

 test thread-1.7 {Tcl_ThreadObjCmd: thread id args} {testthread} {

     set x [catch {testthread id x} msg]

     list $x $msg

 } {1 {wrong # args: should be "testthread id"}}

 test thread-1.8 {Tcl_ThreadObjCmd: thread id} {testthread} {

     string compare [testthread id] $::tcltest::mainThread

 } {0}

 test thread-1.9 {Tcl_ThreadObjCmd: thread names args} {testthread} {

     set x [catch {testthread names x} msg]

     list $x $msg

 } {1 {wrong # args: should be "testthread names"}}

 test thread-1.10 {Tcl_ThreadObjCmd: thread id} {testthread} {

     string compare [testthread names] $::tcltest::mainThread

 } {0}

 test thread-1.11 {Tcl_ThreadObjCmd: send args} {testthread} {

     set x [catch {testthread send} msg]

     list $x $msg

 } {1 {wrong # args: should be "testthread send ?-async? id script"}}

 test thread-1.12 {Tcl_ThreadObjCmd: send nonint} {testthread} {

     set x [catch {testthread send abc command} msg]

     list $x $msg

 } {1 {expected integer but got "abc"}}

 test thread-1.13 {Tcl_ThreadObjCmd: send args} {testthread} {

     threadReap

     set serverthread [testthread create]

     set five [testthread send $serverthread {set x 5}]

     threadReap

     set five

 } 5

 test thread-1.14 {Tcl_ThreadObjCmd: send bad id} {testthread} {

     set tid [expr $::tcltest::mainThread + 10]

     set x [catch {testthread send $tid {set x 5}} msg]

     list $x $msg

 } {1 {invalid thread id}}

 test thread-1.15 {Tcl_ThreadObjCmd: wait} {testthread} {

     threadReap

     set serverthread [testthread create {set z 5 ; testthread wait}]

     set five [testthread send $serverthread {set z}]

     threadReap

     set five

 } 5

 test thread-1.16 {Tcl_ThreadObjCmd: errorproc args} {testthread} {

     set x [catch {testthread errorproc foo bar} msg]

     list $x $msg

 } {1 {wrong # args: should be "testthread errorproc proc"}}

 test thread-1.17 {Tcl_ThreadObjCmd: errorproc change} {testthread} {

     testthread errorproc foo

     testthread errorproc ThreadError

 } {}

 # The tests above also cover:

 # TclCreateThread, except when pthread_create fails

 # NewThread, safe and regular

 # ThreadErrorProc, except for printing to standard error

 test thread-2.1 {ListUpdateInner and ListRemove} {testthread} {

     threadReap

     catch {unset tid}

     foreach t {0 1 2} {

 	upvar #0 t$t tid

 	set tid [testthread create]

     }

     threadReap

 } 1

 test thread-3.1 {TclThreadList} {testthread} {

     threadReap

     catch {unset tid}

     set len [llength [testthread names]]

     set l1  {}

     foreach t {0 1 2} {

 	lappend l1 [testthread create]

     }

     set l2 [testthread names]

     list $l1 $l2

     set c [string compare \

 	    [lsort -integer [concat $::tcltest::mainThread $l1]] \

 	    [lsort -integer $l2]]

     threadReap

     list $len $c

 } {1 0}

 test thread-4.1 {TclThreadSend to self} {testthread} {

     catch {unset x}

     testthread send [testthread id] {

 	set x 4

     }

     set x

 } {4}

 test thread-4.2 {TclThreadSend -async} {testthread} {

     threadReap

     set len [llength [testthread names]]

     set serverthread [testthread create]

     testthread send -async $serverthread {

 	after 1000

 	testthread exit

     }

     set two [llength [testthread names]]

     after 1500 {set done 1}

     vwait done

     threadReap

     list $len [llength [testthread names]] $two

 } {1 1 2}

 test thread-4.3 {TclThreadSend preserve errorInfo} {testthread} {

     threadReap

     set len [llength [testthread names]]

     set serverthread [testthread create]

     set x [catch {testthread send $serverthread {set undef}} msg]

     threadReap

     list $len $x $msg $errorInfo

 } {1 1 {can't read "undef": no such variable} {can't read "undef": no such variable

     while executing

 "set undef"

     invoked from within

 "testthread send $serverthread {set undef}"}}

 test thread-4.4 {TclThreadSend preserve code} {testthread} {

     threadReap

     set len [llength [testthread names]]

     set serverthread [testthread create]

     set x [catch {testthread send $serverthread {break}} msg]

     threadReap

     list $len $x $msg $errorInfo

 } {1 3 {} {}}

 test thread-4.5 {TclThreadSend preserve errorCode} {testthread} {

     threadReap

     set ::tcltest::mainThread [testthread names]

     set serverthread [testthread create]

     set x [catch {testthread send $serverthread {error ERR INFO CODE}} msg]

     threadReap

     list $x $msg $errorCode

 } {1 ERR CODE}

 test thread-5.0 {Joining threads} {testthread} {

     threadReap

     set serverthread [testthread create -joinable]

     testthread send -async $serverthread {after 1000 ; testthread exit}

     set res [testthread join $serverthread]

     threadReap

     set res

 } {0}

 test thread-5.1 {Joining threads after the fact} {testthread} {

     threadReap

     set serverthread [testthread create -joinable]

     testthread send -async $serverthread {testthread exit}

     after 2000

     set res [testthread join $serverthread]

     threadReap

     set res

 } {0}

 test thread-5.2 {Try to join a detached thread} {testthread} {

     threadReap

     set serverthread [testthread create]

     testthread send -async $serverthread {after 1000 ; testthread exit}

     catch {set res [testthread join $serverthread]} msg

     threadReap

     lrange $msg 0 2

 } {cannot join thread}

 # cleanup

 ::tcltest::cleanupTests

 return