# Copyright (c) 1991-1994 The Regents of the University of California.
# Copyright (c) 1994-1997 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: io.test,v 1.18 2001/05/23 23:22:43 hobbs Exp $
# RCS: @(#) $Id: io.test,v 1.19 2001/07/17 18:46:47 andreas_kupries Exp $

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

if {"[info commands testchannel]" != "testchannel"} {

    fconfigure $f -buffersize 100000
    lappend l [fconfigure $f -buffersize]
    fconfigure $f -buffersize 10000000
    lappend l [fconfigure $f -buffersize]
    close $f
    set l
} {4096 10000 4096 4096 4096 100000 4096}

test io-38.3 {Tcl_SetChannelBufferSize, changing buffersize between reads} {
    # This test crashes the interp if Bug #427196 is not fixed

    set chan [open [info script] r]
    fconfigure $chan -buffersize 10
    set var [read $chan 2]
    fconfigure $chan -buffersize 32
    append var [read $chan]
    close $chan
} {}

# Test Tcl_SetChannelOption, Tcl_GetChannelOption

test io-39.1 {Tcl_GetChannelOption} {
    removeFile test1
    set f1 [open test1 w]
    set x [fconfigure $f1 -blocking]

    # threads, i.e. 'Threads'. Or we have to extend [testthread] as well.

    set f [open longfile r]
    set result [testchannel mthread $f]
    close $f
    set result
} [testmainthread]



# cleanup
foreach file [list fooBar longfile script output test1 pipe my_script foo \
	bar test2 test3 cat stdout] {
    ::tcltest::removeFile $file
}
::tcltest::restoreState
::tcltest::cleanupTests
return