# This file contains a collection of tests for the procedures in the file # tclEvent.c, which includes the "update", and "vwait" Tcl commands. Sourcing # this file into Tcl runs the tests and generates output for errors. No # output means no errors were found. # # Copyright (c) 1995-1997 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: event.test,v 1.29 2010/07/05 09:50:10 dkf Exp $ package require tcltest 2 namespace import -force ::tcltest::* testConstraint testfilehandler [llength [info commands testfilehandler]] testConstraint testexithandler [llength [info commands testexithandler]] testConstraint testfilewait [llength [info commands testfilewait]] testConstraint exec [llength [info commands exec]] test event-1.1 {Tcl_CreateFileHandler, reading} -setup { testfilehandler close set result "" } -constraints {testfilehandler} -body { testfilehandler create 0 readable off testfilehandler clear 0 testfilehandler oneevent lappend result [testfilehandler counts 0] testfilehandler fillpartial 0 testfilehandler oneevent lappend result [testfilehandler counts 0] testfilehandler oneevent lappend result [testfilehandler counts 0] } -cleanup { testfilehandler close } -result {{0 0} {1 0} {2 0}} test event-1.2 {Tcl_CreateFileHandler, writing} -setup { testfilehandler close set result "" } -constraints {testfilehandler nonPortable} -body { # This test is non-portable because on some systems (e.g., SunOS 4.1.3) # pipes seem to be writable always. testfilehandler create 0 off writable testfilehandler clear 0 testfilehandler oneevent lappend result [testfilehandler counts 0] testfilehandler fillpartial 0 testfilehandler oneevent lappend result [testfilehandler counts 0] testfilehandler fill 0 testfilehandler oneevent lappend result [testfilehandler counts 0] } -cleanup { testfilehandler close } -result {{0 1} {0 2} {0 2}} test event-1.3 {Tcl_DeleteFileHandler} -setup { testfilehandler close set result "" } -constraints {testfilehandler nonPortable} -body { testfilehandler create 2 disabled disabled testfilehandler create 1 readable writable testfilehandler create 0 disabled disabled testfilehandler fillpartial 1 testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler create 1 off off testfilehandler oneevent lappend result [testfilehandler counts 1] } -cleanup { testfilehandler close } -result {{0 1} {1 1} {1 2} {0 0}} test event-2.1 {Tcl_DeleteFileHandler} -setup { testfilehandler close set result "" } -constraints {testfilehandler nonPortable} -body { testfilehandler create 2 disabled disabled testfilehandler create 1 readable writable testfilehandler fillpartial 1 testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler create 1 off off testfilehandler oneevent lappend result [testfilehandler counts 1] } -cleanup { testfilehandler close } -result {{0 1} {1 1} {1 2} {0 0}} test event-2.2 {Tcl_DeleteFileHandler, fd reused & events still pending} -setup { testfilehandler close set result "" } -constraints {testfilehandler nonPortable} -body { testfilehandler create 0 readable writable testfilehandler fillpartial 0 testfilehandler oneevent lappend result [testfilehandler counts 0] testfilehandler close testfilehandler create 0 readable writable testfilehandler oneevent lappend result [testfilehandler counts 0] } -cleanup { testfilehandler close } -result {{0 1} {0 0}} test event-3.1 {FileHandlerCheckProc, TCL_FILE_EVENTS off} -setup { testfilehandler close } -constraints {testfilehandler} -body { testfilehandler create 1 readable writable testfilehandler fillpartial 1 testfilehandler windowevent testfilehandler counts 1 } -cleanup { testfilehandler close } -result {0 0} test event-4.1 {FileHandlerEventProc, race between event and disabling} -setup { update testfilehandler close set result "" } -constraints {testfilehandler nonPortable} -body { testfilehandler create 2 disabled disabled testfilehandler create 1 readable writable testfilehandler fillpartial 1 testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler oneevent lappend result [testfilehandler counts 1] testfilehandler create 1 disabled disabled testfilehandler oneevent lappend result [testfilehandler counts 1] } -cleanup { testfilehandler close } -result {{0 1} {1 1} {1 2} {0 0}} test event-4.2 {FileHandlerEventProc, TCL_FILE_EVENTS off} -setup { update testfilehandler close } -constraints {testfilehandler nonPortable} -body { testfilehandler create 1 readable writable testfilehandler create 2 readable writable testfilehandler fillpartial 1 testfilehandler fillpartial 2 testfilehandler oneevent set result "" lappend result [testfilehandler counts 1] [testfilehandler counts 2] testfilehandler windowevent lappend result [testfilehandler counts 1] [testfilehandler counts 2] } -cleanup { testfilehandler close } -result {{0 0} {0 1} {0 0} {0 1}} update test event-5.1 {Tcl_BackgroundError, HandleBgErrors procedures} -setup { catch {rename bgerror {}} } -body { proc bgerror msg { global errorInfo errorCode x lappend x [list $msg $errorInfo $errorCode] } after idle {error "a simple error"} after idle {open non_existent} after idle {set errorInfo foobar; set errorCode xyzzy} set x {} update idletasks regsub -all [file join {} non_existent] $x "non_existent" } -cleanup { rename bgerror {} } -result {{{a simple error} {a simple error while executing "error "a simple error"" ("after" script)} NONE} {{couldn't open "non_existent": no such file or directory} {couldn't open "non_existent": no such file or directory while executing "open non_existent" ("after" script)} {POSIX ENOENT {no such file or directory}}}} test event-5.2 {Tcl_BackgroundError, HandleBgErrors procedures} -setup { catch {rename bgerror {}} } -body { proc bgerror msg { global x lappend x $msg return -code break } after idle {error "a simple error"} after idle {open non_existent} set x {} update idletasks return $x } -cleanup { rename bgerror {} } -result {{a simple error}} test event-5.3 {HandleBgErrors: [Bug 1670155]} -setup { variable x proc demo args {variable x done} variable target [list [namespace which demo] x] proc trial args {variable target; string length $target} trace add execution demo enter [namespace code trial] variable save [interp bgerror {}] interp bgerror {} $target } -body { after 0 {error bar} vwait [namespace which -variable x] } -cleanup { interp bgerror {} $save unset x target save rename demo {} rename trial {} } -result {} test event-5.3.1 {Default [interp bgerror] handler} -body { ::tcl::Bgerror } -returnCodes error -match glob -result {*msg options*} test event-5.4 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} } -returnCodes error -match glob -result {*msg options*} test event-5.5 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} {} {} } -returnCodes error -match glob -result {*msg options*} test event-5.6 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} {} } -returnCodes error -match glob -result {*-level*} test event-5.7 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} {-level foo} } -returnCodes error -match glob -result {*expected integer*} test event-5.8 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} {-level 0} } -returnCodes error -match glob -result {*-code*} test event-5.9 {Default [interp bgerror] handler} -body { ::tcl::Bgerror {} {-level 0 -code ok} } -returnCodes error -match glob -result {*expected integer*} test event-5.10 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror {} {-level 0 -code 0} return $::res } -cleanup { rename bgerror {} } -result {} test event-5.11 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror msg {-level 0 -code 1} return $::res } -cleanup { rename bgerror {} } -result {msg} test event-5.12 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror msg {-level 0 -code 2} return $::res } -cleanup { rename bgerror {} } -result {command returned bad code: 2} test event-5.13 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror msg {-level 0 -code 3} return $::res } -cleanup { rename bgerror {} } -result {invoked "break" outside of a loop} test event-5.14 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror msg {-level 0 -code 4} return $::res } -cleanup { rename bgerror {} } -result {invoked "continue" outside of a loop} test event-5.15 {Default [interp bgerror] handler} -body { proc bgerror {m} {append ::res $m} set ::res {} ::tcl::Bgerror msg {-level 0 -code 5} return $::res } -cleanup { rename bgerror {} } -result {command returned bad code: 5} test event-6.1 {BgErrorDeleteProc procedure} -setup { catch {interp delete foo} interp create foo set erroutfile [makeFile Unmodified err.out] } -body { foo eval [list set erroutfile $erroutfile] foo eval { proc bgerror args { global errorInfo erroutfile set f [open $erroutfile r+] seek $f 0 end puts $f "$args $errorInfo" close $f } after 100 {error "first error"} after 100 {error "second error"} } after 100 {interp delete foo} after 200 update set f [open $erroutfile r] set result [read $f] close $f return $result } -cleanup { removeFile $erroutfile } -result {Unmodified } test event-7.1 {bgerror / regular} { set errRes {} proc bgerror {err} { global errRes set errRes $err } after 0 {error err1} vwait errRes return $errRes } err1 test event-7.2 {bgerror / accumulation} { set errRes {} proc bgerror {err} { global errRes lappend errRes $err } after 0 {error err1} after 0 {error err2} after 0 {error err3} update return $errRes } {err1 err2 err3} test event-7.3 {bgerror / accumulation / break} { set errRes {} proc bgerror {err} { global errRes lappend errRes $err return -code break "skip!" } after 0 {error err1} after 0 {error err2} after 0 {error err3} update return $errRes } err1 test event-7.4 {tkerror is nothing special anymore to tcl} -body { set errRes {} # we don't just rename bgerror to empty because it could then # be autoloaded... proc bgerror {err} { global errRes lappend errRes "bg:$err" } proc tkerror {err} { global errRes lappend errRes "tk:$err" } after 0 {error err1} update return $errRes } -cleanup { rename tkerror {} } -result bg:err1 test event-7.5 {correct behaviour when there is no bgerror [Bug 219142]} -body { exec [interpreter] << { after 1000 error hello after 2000 set a 0 vwait a } } -constraints {exec} -returnCodes error -result {hello while executing "error hello" ("after" script)} test event-7.6 {safe hidden bgerror fallback} -setup { variable result {} interp create -safe safe } -body { safe alias puts puts safe alias result ::append [namespace which -variable result] safe eval {proc bgerror m {result $m\n$::errorCode\n$::errorInfo\n}} safe hide bgerror safe eval after 0 error foo update return $result } -cleanup { interp delete safe } -result {foo NONE foo while executing "error foo" ("after" script) } test event-7.7 {safe hidden bgerror fallback} -setup { variable result {} interp create -safe safe } -body { safe alias puts puts safe alias result ::append [namespace which -variable result] safe eval {proc bgerror m {result $m\n$::errorCode\n$::errorInfo\n}} safe hide bgerror safe eval {proc bgerror m {error bar soom baz}} safe eval after 0 error foo update return $result } -cleanup { interp delete safe } -result {foo NONE foo while executing "error foo" ("after" script) } # someday : add a test checking that when there is no bgerror, an error msg # goes to stderr ideally one would use sub interp and transfer a fake stderr # to it, unfortunatly the current interp tcl API does not allow that. The # other option would be to use fork a test but it then becomes more a # file/exec test than a bgerror test. # end of bgerror tests catch {rename bgerror {}} test event-8.1 {Tcl_CreateExitHandler procedure} {stdio testexithandler} { set child [open |[list [interpreter]] r+] puts $child "testexithandler create 41; testexithandler create 4" puts $child "testexithandler create 6; exit" flush $child set result [read $child] close $child return $result } {even 6 even 4 odd 41 } test event-9.1 {Tcl_DeleteExitHandler procedure} {stdio testexithandler} { set child [open |[list [interpreter]] r+] puts $child "testexithandler create 41; testexithandler create 4" puts $child "testexithandler create 6; testexithandler delete 41" puts $child "testexithandler create 16; exit" flush $child set result [read $child] close $child return $result } {even 16 even 6 even 4 } test event-9.2 {Tcl_DeleteExitHandler procedure} {stdio testexithandler} { set child [open |[list [interpreter]] r+] puts $child "testexithandler create 41; testexithandler create 4" puts $child "testexithandler create 6; testexithandler delete 4" puts $child "testexithandler create 16; exit" flush $child set result [read $child] close $child return $result } {even 16 even 6 odd 41 } test event-9.3 {Tcl_DeleteExitHandler procedure} {stdio testexithandler} { set child [open |[list [interpreter]] r+] puts $child "testexithandler create 41; testexithandler create 4" puts $child "testexithandler create 6; testexithandler delete 6" puts $child "testexithandler create 16; exit" flush $child set result [read $child] close $child return $result } {even 16 even 4 odd 41 } test event-9.4 {Tcl_DeleteExitHandler procedure} {stdio testexithandler} { set child [open |[list [interpreter]] r+] puts $child "testexithandler create 41; testexithandler delete 41" puts $child "testexithandler create 16; exit" flush $child set result [read $child] close $child return $result } {even 16 } test event-10.1 {Tcl_Exit procedure} {stdio} { set child [open |[list [interpreter]] r+] puts $child "exit 3" list [catch {close $child} msg] $msg [lindex $::errorCode 0] \ [lindex $::errorCode 2] } {1 {child process exited abnormally} CHILDSTATUS 3} test event-11.1 {Tcl_VwaitCmd procedure} -returnCodes error -body { vwait } -result {wrong # args: should be "vwait name"} test event-11.2 {Tcl_VwaitCmd procedure} -returnCodes error -body { vwait a b } -result {wrong # args: should be "vwait name"} test event-11.3 {Tcl_VwaitCmd procedure} -setup { catch {unset x} } -body { set x 1 vwait x(1) } -returnCodes error -result {can't trace "x(1)": variable isn't array} test event-11.4 {Tcl_VwaitCmd procedure} -setup { foreach i [after info] { after cancel $i } after 10; update; # On Mac make sure update won't take long } -body { after 100 {set x x-done} after 200 {set y y-done} after 300 {set z z-done} after idle {set q q-done} set x before set y before set z before set q before list [vwait y] $x $y $z $q } -cleanup { foreach i [after info] { after cancel $i } } -result {{} x-done y-done before q-done} test event-11.5 {Tcl_VwaitCmd procedure: round robin scheduling, 2 sources} -setup { set test1file [makeFile "" test1] } -constraints {socket} -body { set f1 [open $test1file w] proc accept {s args} { puts $s foobar close $s } set s1 [socket -server accept -myaddr 127.0.0.1 0] after 1000 set s2 [socket 127.0.0.1 [lindex [fconfigure $s1 -sockname] 2]] close $s1 set x 0 set y 0 set z 0 fileevent $s2 readable {incr z} vwait z fileevent $f1 writable {incr x; if {$y == 3} {set z done}} fileevent $s2 readable {incr y; if {$x == 3} {set z done}} vwait z close $f1 close $s2 list $x $y $z } -cleanup { removeFile $test1file } -result {3 3 done} test event-11.6 {Tcl_VwaitCmd procedure: round robin scheduling, same source} { set test1file [makeFile "" test1] set test2file [makeFile "" test2] set f1 [open $test1file w] set f2 [open $test2file w] set x 0 set y 0 set z 0 update fileevent $f1 writable {incr x; if {$y == 3} {set z done}} fileevent $f2 writable {incr y; if {$x == 3} {set z done}} vwait z close $f1 close $f2 removeFile $test1file removeFile $test2file list $x $y $z } {3 3 done} test event-12.1 {Tcl_UpdateCmd procedure} -returnCodes error -body { update a b } -result {wrong # args: should be "update ?idletasks?"} test event-12.2 {Tcl_UpdateCmd procedure} -returnCodes error -body { update bogus } -result {bad option "bogus": must be idletasks} test event-12.3 {Tcl_UpdateCmd procedure} -setup { foreach i [after info] { after cancel $i } } -body { after 500 {set x after} after idle {set y after} after idle {set z "after, y = $y"} set x before set y before set z before update idletasks list $x $y $z } -cleanup { foreach i [after info] { after cancel $i } } -result {before after {after, y = after}} test event-12.4 {Tcl_UpdateCmd procedure} -setup { foreach i [after info] { after cancel $i } } -body { after 10; update; # On Mac make sure update won't take long after 200 {set x x-done} after 600 {set y y-done} after idle {set z z-done} set x before set y before set z before after 300 update list $x $y $z } -cleanup { foreach i [after info] { after cancel $i } } -result {x-done before z-done} test event-13.1 {Tcl_WaitForFile procedure, readable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints {testfilehandler} -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 readable 0] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {{} {no timeout}} test event-13.2 {Tcl_WaitForFile procedure, readable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints testfilehandler -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 readable 100] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {{} timeout} test event-13.3 {Tcl_WaitForFile procedure, readable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints testfilehandler -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fillpartial 1 set x "no timeout" set result [testfilehandler wait 1 readable 100] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {readable {no timeout}} test event-13.4 {Tcl_WaitForFile procedure, writable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints {testfilehandler nonPortable} -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fill 1 set x "no timeout" set result [testfilehandler wait 1 writable 0] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {{} {no timeout}} test event-13.5 {Tcl_WaitForFile procedure, writable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints {testfilehandler nonPortable} -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fill 1 set x "no timeout" set result [testfilehandler wait 1 writable 100] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {{} timeout} test event-13.6 {Tcl_WaitForFile procedure, writable} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints testfilehandler -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 writable 100] update list $result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {writable {no timeout}} test event-13.7 {Tcl_WaitForFile procedure, don't call other event handlers} -setup { foreach i [after info] { after cancel $i } testfilehandler close } -constraints testfilehandler -body { after 100 lappend x timeout after idle lappend x idle testfilehandler create 1 off off set x "" set result [list [testfilehandler wait 1 readable 200] $x] update lappend result $x } -cleanup { testfilehandler close foreach i [after info] { after cancel $i } } -result {{} {} {timeout idle}} test event-13.8 {Tcl_WaitForFile procedure, waiting indefinitely} testfilewait { set f [open "|sleep 2" r] set result "" lappend result [testfilewait $f readable 100] lappend result [testfilewait $f readable -1] close $f return $result } {{} readable} test event-14.1 {Tcl_WaitForFile procedure, readable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix} -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 readable 0] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {{} {no timeout}} test event-14.2 {Tcl_WaitForFile procedure, readable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix} -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 readable 100] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {{} timeout} test event-14.3 {Tcl_WaitForFile procedure, readable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix} -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fillpartial 1 set x "no timeout" set result [testfilehandler wait 1 readable 100] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {readable {no timeout}} test event-14.4 {Tcl_WaitForFile procedure, writable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix nonPortable} -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fill 1 set x "no timeout" set result [testfilehandler wait 1 writable 0] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {{} {no timeout}} test event-14.5 {Tcl_WaitForFile procedure, writable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix nonPortable} -body { after 100 set x timeout testfilehandler create 1 off off testfilehandler fill 1 set x "no timeout" set result [testfilehandler wait 1 writable 100] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {{} timeout} test event-14.6 {Tcl_WaitForFile procedure, writable, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix} -body { after 100 set x timeout testfilehandler create 1 off off set x "no timeout" set result [testfilehandler wait 1 writable 100] update list $result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {writable {no timeout}} test event-14.7 {Tcl_WaitForFile, don't call other event handlers, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } foreach i [after info] {after cancel $i} testfilehandler close } -constraints {testfilehandler unix} -body { after 100 lappend x timeout after idle lappend x idle testfilehandler create 1 off off set x "" set result [list [testfilehandler wait 1 readable 200] $x] update lappend result $x } -cleanup { testfilehandler close foreach chan $chanList {close $chan} foreach i [after info] {after cancel $i} } -result {{} {} {timeout idle}} test event-14.8 {Tcl_WaitForFile procedure, waiting indefinitely, big fd} -setup { set chanList {} for {set i 0} {$i < 32} {incr i} { lappend chanList [open /dev/null r] } } -constraints {testfilewait unix} -body { set f [open "|sleep 2" r] set result "" lappend result [testfilewait $f readable 100] lappend result [testfilewait $f readable -1] close $f return $result } -cleanup { foreach chan $chanList {close $chan} } -result {{} readable} # cleanup foreach i [after info] { after cancel $i } ::tcltest::cleanupTests return # Local Variables: # mode: tcl # End: