# This file contains tests for tclUnixNotfy.c.
#
# 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) 1997 by 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: unixNotfy.test,v 1.9 2000/04/10 17:19:05 ericm Exp $

# The tests should not be run if you have a notifier which is unable to
# detect infinite vwaits, as the tests below will hang. The presence of
# the "testthread" command indicates that this is the case.

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest
    namespace import -force ::tcltest::*
}

if {[info exists tk_version]} {
    puts "When run in a Tk shell, these tests run hang.  Skipping tests ..."
    ::tcltest::cleanupTests
    return
}

set ::tcltest::testConstraints(testthread) \
	[expr {[info commands testthread] != {}}]

# The next two tests will hang if threads are enabled because the notifier
# will not necessarily wait for ever in this case, so it does not generate
# an error.

test unixNotfy-1.1 {Tcl_DeleteFileHandler} {unixOnly && !testthread} {
    catch {vwait x}
    set f [open foo w]
    fileevent $f writable {set x 1}
    vwait x
    close $f
    list [catch {vwait x} msg] $msg
} {1 {can't wait for variable "x":  would wait forever}}
test unixNotfy-1.2 {Tcl_DeleteFileHandler} {unixOnly && !testthread} {
    catch {vwait x}
    set f1 [open foo w]
    set f2 [open foo2 w]
    fileevent $f1 writable {set x 1}
    fileevent $f2 writable {set y 1}
    vwait x
    close $f1
    vwait y
    close $f2
    list [catch {vwait x} msg] $msg
} {1 {can't wait for variable "x":  would wait forever}}


test unixNotfy-2.1 {Tcl_DeleteFileHandler} {unixOnly testthread} {
    update
    set f [open foo w]
    fileevent $f writable {set x 1}
    vwait x
    close $f
    testthread create "after 500
    testthread send [testthread id] {set x ok}
    testthread exit"
    vwait x
    set x
} {ok}
test unixNotfy-1.2 {Tcl_DeleteFileHandler} {unixOnly testthread} {
    update
    set f1 [open foo w]
    set f2 [open foo2 w]
    fileevent $f1 writable {set x 1}
    fileevent $f2 writable {set y 1}
    vwait x
    close $f1
    vwait y
    close $f2
    testthread create "after 500
    testthread send [testthread id] {set x ok}
    testthread exit"
    vwait x
    set x
} {ok}



# cleanup
file delete foo
file delete foo2
::tcltest::cleanupTests
return












