# 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.

package require tcltest 2
namespace import -force ::tcltest::*

testConstraint testfork [llength [info commands testfork]]
testConstraint threaded [expr {
    ([info exist tcl_platform(threaded)] && $tcl_platform(threaded))
    && $tcl_platform(os) ne "Darwin"
}]

# Test if the notifier thread is well initialized in a forked interpreter
# by Tcl_InitNotifier
test unixforkevent-1.1 {fork and test writeable event} \
    -constraints {threaded testfork} \
    -body {
	set folder [makeDirectory unixtestfork]
	set pid [testfork]
	if {$pid == 0} {
	    # we are the forked process
	    set result initialized
	    set h [open [file join $folder test.txt] w]
	    fileevent $h writable\
		    "set result writable;\
		    after cancel [after 1000 {set result timeout}]"
	    vwait result
	    close $h
	    makeFile $result result.txt $folder
	    exit
	}
	# we are the original process
	while {![file readable [file join $folder result.txt]]} {}
	viewFile result.txt $folder
    } \
    -result {writable} \
    -cleanup { 
	catch { removeFolder $folder }
    }

::tcltest::cleanupTests
return