# Commands covered:  pid

 #

 # 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) 1991-1993 The Regents of the University of California.

 # Copyright (c) 1994-1995 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: pid.test,v 1.8.2.2 2004/02/25 23:38:17 dgp Exp $

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

     package require tcltest 2

     namespace import -force ::tcltest::*

 }

 # If pid is not defined just return with no error

 # Some platforms may not have the pid command implemented

 if {[info commands pid] == ""} {

     puts "pid is not implemented for this machine"

     ::tcltest::cleanupTests

     return

 }

 test pid-1.1 {pid command} {

     regexp {(^[0-9]+$)|(^0x[0-9a-fA-F]+$)} [pid]

 } 1

 test pid-1.2 {pid command} -constraints {unixOrPc unixExecs} -setup {

     set path(test1) [makeFile {} test1]

     file delete $path(test1)

 } -body {

     set f [open |[list echo foo | cat >$path(test1)] w]

     set pids [pid $f]

     close $f

     list [llength $pids] [regexp {^[0-9]+$} [lindex $pids 0]] \

        [regexp {^[0-9]+$} [lindex $pids 1]] \

        [expr {[lindex $pids 0] == [lindex $pids 1]}]

 } -cleanup {

     removeFile test1

 } -result {2 1 1 0}

 test pid-1.3 {pid command} -setup {

     set path(test1) [makeFile {} test1]

     file delete $path(test1)

 } -body {

     set f [open $path(test1) w]

     set pids [pid $f]

     close $f

     set pids

 } -cleanup {

     removeFile test1

 } -result {}

 test pid-1.4 {pid command} {

     list [catch {pid a b} msg] $msg

 } {1 {wrong # args: should be "pid ?channelId?"}}

 test pid-1.5 {pid command} {

     list [catch {pid gorp} msg] $msg

 } {1 {can not find channel named "gorp"}}

 # cleanup

 ::tcltest::cleanupTests

 return