# -*- tcl -*-
# Commands covered: open, close, gets, read, puts, seek, tell, eof, flush,
#		    fblocked, fconfigure, open, channel, fcopy
#
# 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) 1991-1994 The Regents of the University of California.
# Copyright (c) 1994-1996 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: ioCmd.test,v 1.16.2.4 2008/04/09 18:35:28 andreas_kupries Exp $

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

testConstraint fcopy [llength [info commands fcopy]]

test iocmd-1.1 {puts command} {
   list [catch {puts} msg] $msg
} {1 {wrong # args: should be "puts ?-nonewline? ?channelId? string"}}
test iocmd-1.2 {puts command} {
   list [catch {puts a b c d e f g} msg] $msg
} {1 {wrong # args: should be "puts ?-nonewline? ?channelId? string"}}
test iocmd-1.3 {puts command} {
   list [catch {puts froboz -nonewline kablooie} msg] $msg
} {1 {bad argument "kablooie": should be "nonewline"}}
test iocmd-1.4 {puts command} {
   list [catch {puts froboz hello} msg] $msg
} {1 {can not find channel named "froboz"}}
test iocmd-1.5 {puts command} {
   list [catch {puts stdin hello} msg] $msg
} {1 {channel "stdin" wasn't opened for writing}}

set path(test1) [makeFile {} test1]

test iocmd-1.6 {puts command} {
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    puts -nonewline $f foobar
    close $f
    file size $path(test1)
} 6
test iocmd-1.7 {puts command} {
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f foobar
    close $f
    file size $path(test1)
} 7
test iocmd-1.8 {puts command} {
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {} -encoding iso8859-1
    puts -nonewline $f [binary format a4a5 foo bar]
    close $f
    file size $path(test1)
} 9


test iocmd-2.1 {flush command} {
   list [catch {flush} msg] $msg
} {1 {wrong # args: should be "flush channelId"}}
test iocmd-2.2 {flush command} {
   list [catch {flush a b c d e} msg] $msg
} {1 {wrong # args: should be "flush channelId"}}
test iocmd-2.3 {flush command} {
   list [catch {flush foo} msg] $msg
} {1 {can not find channel named "foo"}}
test iocmd-2.4 {flush command} {
   list [catch {flush stdin} msg] $msg
} {1 {channel "stdin" wasn't opened for writing}}

test iocmd-3.1 {gets command} {
   list [catch {gets} msg] $msg
} {1 {wrong # args: should be "gets channelId ?varName?"}}
test iocmd-3.2 {gets command} {
   list [catch {gets a b c d e f g} msg] $msg
} {1 {wrong # args: should be "gets channelId ?varName?"}}
test iocmd-3.3 {gets command} {
   list [catch {gets aaa} msg] $msg
} {1 {can not find channel named "aaa"}}
test iocmd-3.4 {gets command} {
   list [catch {gets stdout} msg] $msg
} {1 {channel "stdout" wasn't opened for reading}}
test iocmd-3.5 {gets command} {
    set f [open $path(test1) w]
    puts $f [binary format a4a5 foo bar]
    close $f
    set f [open $path(test1) r]
    set result [gets $f]
    close $f
    set x foo\x00
    set x "${x}bar\x00\x00"
    string compare $x $result
} 0

test iocmd-4.1 {read command} {
   list [catch {read} msg] $msg
} {1 {wrong # args: should be "read channelId ?numChars?" or "read ?-nonewline? channelId"}}
test iocmd-4.2 {read command} {
   list [catch {read a b c d e f g h} msg] $msg
} {1 {wrong # args: should be "read channelId ?numChars?" or "read ?-nonewline? channelId"}}
test iocmd-4.3 {read command} {
   list [catch {read aaa} msg] $msg
} {1 {can not find channel named "aaa"}}
test iocmd-4.4 {read command} {
   list [catch {read -nonewline} msg] $msg
} {1 {wrong # args: should be "read channelId ?numChars?" or "read ?-nonewline? channelId"}}
test iocmd-4.5 {read command} {
   list [catch {read -nonew file4} msg] $msg $errorCode
} {1 {can not find channel named "-nonew"} NONE}
test iocmd-4.6 {read command} {
   list [catch {read stdout} msg] $msg
} {1 {channel "stdout" wasn't opened for reading}}
test iocmd-4.7 {read command} {
   list [catch {read -nonewline stdout} msg] $msg
} {1 {channel "stdout" wasn't opened for reading}}
test iocmd-4.8 {read command with incorrect combination of arguments} {
    file delete $path(test1)
    set f [open $path(test1) w]
    puts $f "Two lines: this one"
    puts $f "and this one"
    close $f
    set f [open $path(test1)]
    set x [list [catch {read -nonewline $f 20 z} msg] $msg $errorCode]
    close $f
    set x
} {1 {wrong # args: should be "read channelId ?numChars?" or "read ?-nonewline? channelId"} NONE}
test iocmd-4.9 {read command} {
    list [catch {read stdin foo} msg] $msg $errorCode
} {1 {bad argument "foo": should be "nonewline"} NONE}
test iocmd-4.10 {read command} {
    list [catch {read file107} msg] $msg $errorCode
} {1 {can not find channel named "file107"} NONE}

set path(test3) [makeFile {} test3]

test iocmd-4.11 {read command} {
    set f [open $path(test3) w]
    set x [list [catch {read $f} msg] $msg $errorCode]
    close $f
    string compare [string tolower $x] \
	[list 1 [format "channel \"%s\" wasn't opened for reading" $f] none]
} 0
test iocmd-4.12 {read command} {
    set f [open $path(test1)]
    set x [list [catch {read $f 12z} msg] $msg $errorCode]
    close $f
    set x
} {1 {expected integer but got "12z"} NONE}

test iocmd-5.1 {seek command} {
    list [catch {seek} msg] $msg
} {1 {wrong # args: should be "seek channelId offset ?origin?"}}
test iocmd-5.2 {seek command} {
    list [catch {seek a b c d e f g} msg] $msg
} {1 {wrong # args: should be "seek channelId offset ?origin?"}}
test iocmd-5.3 {seek command} {
    list [catch {seek stdin gugu} msg] $msg
} {1 {expected integer but got "gugu"}}
test iocmd-5.4 {seek command} {
    list [catch {seek stdin 100 gugu} msg] $msg
} {1 {bad origin "gugu": must be start, current, or end}}

test iocmd-6.1 {tell command} {
    list [catch {tell} msg] $msg
} {1 {wrong # args: should be "tell channelId"}}
test iocmd-6.2 {tell command} {
    list [catch {tell a b c d e} msg] $msg
} {1 {wrong # args: should be "tell channelId"}}
test iocmd-6.3 {tell command} {
    list [catch {tell aaa} msg] $msg
} {1 {can not find channel named "aaa"}}

test iocmd-7.1 {close command} {
    list [catch {close} msg] $msg
} {1 {wrong # args: should be "close channelId"}}
test iocmd-7.2 {close command} {
    list [catch {close a b c d e} msg] $msg
} {1 {wrong # args: should be "close channelId"}}
test iocmd-7.3 {close command} {
    list [catch {close aaa} msg] $msg
} {1 {can not find channel named "aaa"}}

test iocmd-8.1 {fconfigure command} {
    list [catch {fconfigure} msg] $msg
} {1 {wrong # args: should be "fconfigure channelId ?optionName? ?value? ?optionName value?..."}}
test iocmd-8.2 {fconfigure command} {
    list [catch {fconfigure a b c d e f} msg] $msg
} {1 {wrong # args: should be "fconfigure channelId ?optionName? ?value? ?optionName value?..."}}
test iocmd-8.3 {fconfigure command} {
    list [catch {fconfigure a b} msg] $msg
} {1 {can not find channel named "a"}}
test iocmd-8.4 {fconfigure command} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    set x [list [catch {fconfigure $f1 froboz} msg] $msg]
    close $f1
    set x
} {1 {bad option "froboz": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, or -translation}}
test iocmd-8.5 {fconfigure command} {
    list [catch {fconfigure stdin -buffering froboz} msg] $msg
} {1 {bad value for -buffering: must be one of full, line, or none}}
test iocmd-8.6 {fconfigure command} {
    list [catch {fconfigure stdin -translation froboz} msg] $msg
} {1 {bad value for -translation: must be one of auto, binary, cr, lf, crlf, or platform}}
test iocmd-8.7 {fconfigure command} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {} -encoding unicode
    set x [fconfigure $f1]
    close $f1
    set x
} {-blocking 1 -buffering full -buffersize 4096 -encoding unicode -eofchar {} -translation lf}
test iocmd-8.8 {fconfigure command} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -buffering line -buffersize 3030 \
		-eofchar {} -encoding unicode
    set x ""
    lappend x [fconfigure $f1 -buffering]
    lappend x [fconfigure $f1]
    close $f1
    set x
} {line {-blocking 1 -buffering line -buffersize 3030 -encoding unicode -eofchar {} -translation lf}}
test iocmd-8.9 {fconfigure command} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation binary -buffering none -buffersize 4040 \
		-eofchar {} -encoding binary
    set x [fconfigure $f1]
    close $f1
    set x
} {-blocking 1 -buffering none -buffersize 4040 -encoding binary -eofchar {} -translation lf}
test iocmd-8.10 {fconfigure command} {
    list [catch {fconfigure a b} msg] $msg
} {1 {can not find channel named "a"}}

set path(fconfigure.dummy) [makeFile {} fconfigure.dummy]

test iocmd-8.11 {fconfigure command} {
    set chan [open $path(fconfigure.dummy) r]
    set res [list [catch {fconfigure $chan -froboz blarfo} msg] $msg]
    close $chan
    set res
} {1 {bad option "-froboz": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, or -translation}}

test iocmd-8.12 {fconfigure command} {
    set chan [open $path(fconfigure.dummy) r]
    set res [list [catch {fconfigure $chan -b blarfo} msg] $msg]
    close $chan
    set res
} {1 {bad option "-b": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, or -translation}}

test iocmd-8.13 {fconfigure command} {
    set chan [open $path(fconfigure.dummy) r]
    set res [list [catch {fconfigure $chan -buffer blarfo} msg] $msg]
    close $chan
    set res
} {1 {bad option "-buffer": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, or -translation}}

removeFile fconfigure.dummy

test iocmd-8.14 {fconfigure command} {
    fconfigure stdin -buffers
} 4096

proc iocmdSSETUP {} {
    uplevel {
	set srv [socket -server iocmdSRV 0]
	set port [lindex [fconfigure $srv -sockname] 2]
	proc iocmdSRV {sock ip port} {close $sock}
	set cli [socket 127.0.0.1 $port]
    }
}
proc iocmdSSHTDWN {} {
    uplevel {
	close $cli
	close $srv
	unset cli srv port
	rename iocmdSRV {}
    }
}

test iocmd-8.15.0 {fconfigure command / tcp channel} {socket macOnly} {
	iocmdSSETUP
	set r [list [catch {fconfigure $cli -blah} msg] $msg]
	iocmdSSHTDWN
	set r
} {1 {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, -error, -peername, or -sockname}}
test iocmd-8.15.1 {fconfigure command / tcp channel} {socket unixOrPc} {
	iocmdSSETUP
	set r [list [catch {fconfigure $cli -blah} msg] $msg]
	iocmdSSHTDWN
	set r
} {1 {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, -peername, or -sockname}}
test iocmd-8.16 {fconfigure command / tcp channel} {socket} {
	iocmdSSETUP
	set r [expr [lindex [fconfigure $cli -peername] 2]==$port]
	iocmdSSHTDWN
	set r
} 1
test iocmd-8.17 {fconfigure command / tcp channel} {nonPortable} {
	# It is possible that you don't get the connection reset by peer
        # error but rather a valid answer. depends of the tcp implementation
	iocmdSSETUP
	update;
	puts $cli "blah"; flush $cli; # that flush could/should fail too
	update;
	set r [catch {fconfigure $cli -peername} msg]
	iocmdSSHTDWN
	regsub -all {can([^:])+: } $r {} r;
	set r
} 1
test iocmd-8.18 {fconfigure command / unix tty channel} {nonPortable unixOnly} {
	# might fail if /dev/ttya is unavailable
	set tty [open /dev/ttya]
	set r [list [catch {fconfigure $tty -blah blih} msg] $msg];
	close $tty;
	set r;
} {1 {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, or -mode}}
test iocmd-8.19 {fconfigure command / win tty channel} {nonPortable pcOnly} {
	# might fail if com1 is unavailable
	set tty [open com1]
	set r [list [catch {fconfigure $tty -blah blih} msg] $msg];
	close $tty;
	set r;
} {1 {bad option "-blah": should be one of -blocking, -buffering, -buffersize, -encoding, -eofchar, -translation, -mode, or -pollinterval}}

test iocmd-9.1 {eof command} {
    list [catch {eof} msg] $msg $errorCode
} {1 {wrong # args: should be "eof channelId"} NONE}
test iocmd-9.2 {eof command} {
    list [catch {eof a b} msg] $msg $errorCode
} {1 {wrong # args: should be "eof channelId"} NONE}
test iocmd-9.3 {eof command} {
    catch {close file100}
    list [catch {eof file100} msg] $msg $errorCode
} {1 {can not find channel named "file100"} NONE}

# The tests for Tcl_ExecObjCmd are in exec.test

test iocmd-10.1 {fblocked command} {
    list [catch {fblocked} msg] $msg
} {1 {wrong # args: should be "fblocked channelId"}}
test iocmd-10.2 {fblocked command} {
    list [catch {fblocked a b c d e f g} msg] $msg
} {1 {wrong # args: should be "fblocked channelId"}}
test iocmd-10.3 {fblocked command} {
    list [catch {fblocked file1000} msg] $msg
} {1 {can not find channel named "file1000"}}
test iocmd-10.4 {fblocked command} {
    list [catch {fblocked stdout} msg] $msg
} {1 {channel "stdout" wasn't opened for reading}}
test iocmd-10.5 {fblocked command} {
    fblocked stdin
} 0

set path(test4) [makeFile {} test4]
set path(test5) [makeFile {} test5]

file delete $path(test5)
test iocmd-11.1 {I/O to command pipelines} {unixOrPc unixExecs} {
    set f [open $path(test4) w]
    close $f
    list [catch {open "| cat < $path(test4) > $path(test5)" w} msg] $msg $errorCode
} {1 {can't write input to command: standard input was redirected} NONE}
test iocmd-11.2 {I/O to command pipelines} {unixOrPc unixExecs} {
    list [catch {open "| echo > $path(test5)" r} msg] $msg $errorCode
} {1 {can't read output from command: standard output was redirected} NONE}
test iocmd-11.3 {I/O to command pipelines} {unixOrPc unixExecs} {
    list [catch {open "| echo > $path(test5)" r+} msg] $msg $errorCode
} {1 {can't read output from command: standard output was redirected} NONE}

test iocmd-12.1 {POSIX open access modes: RDONLY} {
    file delete $path(test1)
    set f [open $path(test1) w]
    puts $f "Two lines: this one"
    puts $f "and this one"
    close $f
    set f [open $path(test1) RDONLY]
    set x [list [gets $f] [catch {puts $f Test} msg] $msg]
    close $f
    string compare $x \
	"{Two lines: this one} 1 [list [format "channel \"%s\" wasn't opened for writing" $f]]"
} 0
test iocmd-12.2 {POSIX open access modes: RDONLY} -match regexp -body {
    file delete $path(test3)
    open $path(test3) RDONLY
} -returnCodes error -result {(?i)couldn't open ".*test3": no such file or directory}
test iocmd-12.3 {POSIX open access modes: WRONLY} -match regexp -body {
    file delete $path(test3)
    open $path(test3) WRONLY
} -returnCodes error -result {(?i)couldn't open ".*test3": no such file or directory}
#
# Test 13.4 relies on assigning the same channel name twice.
#
test iocmd-12.4 {POSIX open access modes: WRONLY} {unixOnly} {
    file delete $path(test3)
    set f [open $path(test3) w]
    fconfigure $f -eofchar {}
    puts $f xyzzy
    close $f
    set f [open $path(test3) WRONLY]
    fconfigure $f -eofchar {}
    puts -nonewline $f "ab"
    seek $f 0 current
    set x [list [catch {gets $f} msg] $msg]
    close $f
    set f [open $path(test3) r]
    fconfigure $f -eofchar {}
    lappend x [gets $f]
    close $f
    set y [list 1 [format "channel \"%s\" wasn't opened for reading" $f] abzzy]
    string compare $x $y
} 0
test iocmd-12.5 {POSIX open access modes: RDWR} -match regexp -body {
    file delete $path(test3)
    open $path(test3) RDWR
} -returnCodes error -result {(?i)couldn't open ".*test3": no such file or directory}
test iocmd-12.6 {POSIX open access modes: errors} {
    concat [catch {open $path(test3) "FOO \{BAR BAZ"} msg] $msg\n$errorInfo
} "1 unmatched open brace in list
unmatched open brace in list
    while processing open access modes \"FOO {BAR BAZ\"
    invoked from within
\"open \$path(test3) \"FOO \\{BAR BAZ\"\""
test iocmd-12.7 {POSIX open access modes: errors} {
  list [catch {open $path(test3) {FOO BAR BAZ}} msg] $msg
} {1 {invalid access mode "FOO": must be RDONLY, WRONLY, RDWR, APPEND, CREAT EXCL, NOCTTY, NONBLOCK, or TRUNC}}
test iocmd-12.8 {POSIX open access modes: errors} {
    list [catch {open $path(test3) {TRUNC CREAT}} msg] $msg
} {1 {access mode must include either RDONLY, WRONLY, or RDWR}}
close [open $path(test3) w]

test iocmd-13.1 {errors in open command} {
    list [catch {open} msg] $msg
} {1 {wrong # args: should be "open fileName ?access? ?permissions?"}}
test iocmd-13.2 {errors in open command} {
    list [catch {open a b c d} msg] $msg
} {1 {wrong # args: should be "open fileName ?access? ?permissions?"}}
test iocmd-13.3 {errors in open command} {
    list [catch {open $path(test1) x} msg] $msg
} {1 {illegal access mode "x"}}
test iocmd-13.4 {errors in open command} {
    list [catch {open $path(test1) rw} msg] $msg
} {1 {illegal access mode "rw"}}
test iocmd-13.5 {errors in open command} {
    list [catch {open $path(test1) r+1} msg] $msg
} {1 {illegal access mode "r+1"}}
test iocmd-13.6 {errors in open command} {
    set msg [list [catch {open _non_existent_} msg] $msg $errorCode]
    regsub [file join {} _non_existent_] $msg "_non_existent_" msg
	string tolower $msg
} {1 {couldn't open "_non_existent_": no such file or directory} {posix enoent {no such file or directory}}}


test iocmd-13.7.1 {open for append, a mode} -setup {
    set log   [makeFile {} out]
    set chans {}
} -body {
    foreach i { 0 1 2 3 4 5 6 7 8 9 } {
	puts [set ch [open $log a]] $i
	lappend chans $ch
    }
    foreach ch $chans {catch {close $ch}}
    lsort [split [string trim [viewFile out]] \n]
} -cleanup {
    removeFile out
    # Ensure that channels are gone, even if body failed to do so
    foreach ch $chans {catch {close $ch}}
} -result {0 1 2 3 4 5 6 7 8 9}

test iocmd-13.7.2 {open for append, O_APPEND} -setup {
    set log   [makeFile {} out]
    set chans {}
} -body {
    foreach i { 0 1 2 3 4 5 6 7 8 9 } {
	puts [set ch [open $log {WRONLY CREAT APPEND}]] $i
	lappend chans $ch
    }
    foreach ch $chans {catch {close $ch}}
    lsort [split [string trim [viewFile out]] \n]
} -cleanup {
    removeFile out
    # Ensure that channels are gone, even if body failed to do so
    foreach ch $chans {catch {close $ch}}
} -result {0 1 2 3 4 5 6 7 8 9}




test iocmd-14.1 {file id parsing errors} {
    list [catch {eof gorp} msg] $msg $errorCode
} {1 {can not find channel named "gorp"} NONE}
test iocmd-14.2 {file id parsing errors} {
    list [catch {eof filex} msg] $msg
} {1 {can not find channel named "filex"}}
test iocmd-14.3 {file id parsing errors} {
    list [catch {eof file12a} msg] $msg
} {1 {can not find channel named "file12a"}}
test iocmd-14.4 {file id parsing errors} {
    list [catch {eof file123} msg] $msg
} {1 {can not find channel named "file123"}}
test iocmd-14.5 {file id parsing errors} {
    list [catch {eof stdout} msg] $msg
} {0 0}
test iocmd-14.6 {file id parsing errors} {
    list [catch {eof stdin} msg] $msg
} {0 0}
test iocmd-14.7 {file id parsing errors} {
    list [catch {eof stdout} msg] $msg
} {0 0}
test iocmd-14.8 {file id parsing errors} {
    list [catch {eof stderr} msg] $msg
} {0 0}
test iocmd-14.9 {file id parsing errors} {
    list [catch {eof stderr1} msg] $msg
} {1 {can not find channel named "stderr1"}}

set f [open $path(test1) w]
close $f

set expect "1 {can not find channel named \"$f\"}"
test iocmd-14.10 {file id parsing errors} {
    list [catch {eof $f} msg] $msg
} $expect

test iocmd-15.1 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy} msg] $msg
} {1 {wrong # args: should be "fcopy input output ?-size size? ?-command callback?"}}
test iocmd-15.2 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy 1} msg] $msg
} {1 {wrong # args: should be "fcopy input output ?-size size? ?-command callback?"}}
test iocmd-15.3 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy 1 2 3 4 5 6 7} msg] $msg
} {1 {wrong # args: should be "fcopy input output ?-size size? ?-command callback?"}}
test iocmd-15.4 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy 1 2 3} msg] $msg
} {1 {wrong # args: should be "fcopy input output ?-size size? ?-command callback?"}}
test iocmd-15.5 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy 1 2 3 4 5} msg] $msg
} {1 {wrong # args: should be "fcopy input output ?-size size? ?-command callback?"}}

set path(test2) [makeFile {} test2]

set f [open $path(test1) w]
close $f

set rfile [open $path(test1) r]
set wfile [open $path(test2) w]

test iocmd-15.6 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy foo $wfile} msg] $msg
} {1 {can not find channel named "foo"}}
test iocmd-15.7 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile foo} msg] $msg
} {1 {can not find channel named "foo"}}
test iocmd-15.8 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $wfile $wfile} msg] $msg
} "1 {channel \"$wfile\" wasn't opened for reading}"
test iocmd-15.9 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $rfile} msg] $msg
} "1 {channel \"$rfile\" wasn't opened for writing}"
test iocmd-15.10 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $wfile foo bar} msg] $msg
} {1 {bad switch "foo": must be -size or -command}}
test iocmd-15.11 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $wfile -size foo} msg] $msg
} {1 {expected integer but got "foo"}}
test iocmd-15.12 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $wfile -command bar -size foo} msg] $msg
} {1 {expected integer but got "foo"}}
test iocmd-15.13 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $wfile -command bar -size 3221176172} msg] $msg
} {1 {integer value to large to represent as 32bit signed value}}
test iocmd-15.14 {Tcl_FcopyObjCmd} {fcopy} {
    list [catch {fcopy $rfile $wfile -command bar -size -2} msg] $msg
} {1 {negative size forbidden}}

close $rfile
close $wfile

# cleanup
foreach file [list test1 test2 test3 test4] {
    removeFile $file
}
# delay long enough for background processes to finish
after 500
foreach file [list test5] {
    removeFile $file
}
cleanupTests
return