Tcl Source Code

    chan configure stdout -eofchar [list \x27 {}]
} -result {}
test chan-4.5 {chan command: check valid inValue, invalid outValue} -body {
    chan configure stdout -eofchar [list \x27 \x80]
} -returnCodes error -result {bad value for -eofchar: must be non-NUL ASCII character}
test chan-4.6 {chan command: check no inValue, valid outValue} -body {
    chan configure stdout -eofchar [list {} \x27]
} -returnCodes error -result {bad value for -eofchar: must be non-NUL ASCII character} -cleanup {chan configure stdout -eofchar {}}

test chan-5.1 {chan command: copy subcommand} -body {
    chan copy foo
} -returnCodes error -result "wrong # args: should be \"chan copy input output ?-size size? ?-command callback?\""

test chan-6.1 {chan command: eof subcommand} -body {
    chan eof foo bar

    testConstraint makeFileInHome [expr {![file exists $::env(HOME)/_test_] && [file writable $::env(HOME)]}]

    # set up a long data file for some of the following tests

    set path(longfile) [makeFile {} longfile]
    set f [open $path(longfile) w]
    chan configure $f -eofchar {} -translation lf
    for { set i 0 } { $i < 100 } { incr i} {
	chan puts $f "#123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
\#123456789abcdef01
\#"
    }
    chan close $f

    chan close $f
} -result "file"

test chan-io-25.1 {Tcl_GetChannelHandle, input} -setup {
    set l ""
} -constraints {testchannel} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f "1234567890\n098765432"
    chan close $f
    set f [open $path(test1) r]
    chan gets $f
    lappend l [testchannel inputbuffered $f]
    lappend l [chan tell $f]
} -cleanup {

    chan close $f
} -result 0
test chan-io-27.2 {FlushChannel, some output buffered} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f hello
    lappend l [file size $path(test1)]
    chan flush $f
    lappend l [file size $path(test1)]
    chan close $f
    lappend l [file size $path(test1)]
} -result {0 6 6}
test chan-io-27.3 {FlushChannel, implicit flush on chan close} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f hello
    lappend l [file size $path(test1)]
    chan close $f
    lappend l [file size $path(test1)]
} -result {0 6}
test chan-io-27.4 {FlushChannel, implicit flush when buffer fills} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan configure $f -buffersize 60
    lappend l [file size $path(test1)]
    for {set i 0} {$i < 12} {incr i} {
	chan puts $f hello
    }
    lappend l [file size $path(test1)]
    chan flush $f
    lappend l [file size $path(test1)]
} -cleanup {
    chan close $f
} -result {0 60 72}
test chan-io-27.5 {FlushChannel, implicit flush when buffer fills and on chan close} -setup {
    file delete $path(test1)
    set l ""
} -constraints {unixOrWin} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -buffersize 60 -eofchar {}
    lappend l [file size $path(test1)]
    for {set i 0} {$i < 12} {incr i} {
	chan puts $f hello
    }
    lappend l [file size $path(test1)]
    chan close $f
    lappend l [file size $path(test1)]
} -result {0 60 72}
set path(pipe)   [makeFile {} pipe]
set path(output) [makeFile {} output]
test chan-io-27.6 {FlushChannel, async flushing, async chan close} -setup {
    file delete $path(pipe)
    file delete $path(output)
} -constraints {stdio asyncPipeChan Close} -body {
    set f [open $path(pipe) w]
    chan puts $f "set f \[[list open $path(output) w]]"
    chan puts $f {
	chan configure $f -translation lf -buffering none -eofchar {}
	while {![chan eof stdin]} {
	    after 20
	    chan puts -nonewline $f [chan read stdin 1024]
	}
	chan close $f
    }
    chan close $f

    file delete $path(output)
} -constraints {stdio asyncPipeChan Close nonPortable} -body {
    set f [open $path(pipe) w]
    chan puts $f {
	# Need to not have eof char appended on chan close, because the other
	# side of the pipe already chan closed, so that writing would cause an
	# error "invalid file".
	chan configure stdout -eofchar {}
	chan configure stderr -eofchar {}
	set f [open $path(output) w]
	chan configure $f -translation lf -buffering none
	for {set x 0} {$x < 20} {incr x} {
	    after 20
	    chan puts -nonewline $f [chan read stdin 1024]
	}
	chan close $f
    }
    chan close $f
    set x 01234567890123456789012345678901
    for {set i 0} {$i < 11} {incr i} {
        set x "$x$x"
    }
    set f [open $path(output) w]
    chan close $f
    set f [openpipe r+ $path(pipe)]
    chan configure $f -blocking off -eofchar {}
    chan puts -nonewline $f $x
    chan close $f
    set counter 0
    while {([file size $path(output)] < 20480) && ($counter < 1000)} {
	after 20 [list incr [namespace which -variable counter]]
	vwait [namespace which -variable counter]
    }

test chan-io-29.1 {Tcl_WriteChars, channel not writable} -body {
    chan puts stdin hello
} -returnCodes error -result {channel "stdin" wasn't opened for writing}
test chan-io-29.2 {Tcl_WriteChars, empty string} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -eofchar {}
    chan puts -nonewline $f ""
    chan close $f
    file size $path(test1)
} -result 0
test chan-io-29.3 {Tcl_WriteChars, nonempty string} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -eofchar {}
    chan puts -nonewline $f hello
    chan close $f
    file size $path(test1)
} -result 5
test chan-io-29.4 {Tcl_WriteChars, buffering in full buffering mode} -setup {
    file delete $path(test1)
    set l ""
} -constraints {testchannel} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -buffering full -eofchar {}
    chan puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    chan flush $f
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
} -cleanup {
    chan close $f
} -result {6 0 0 6}
test chan-io-29.5 {Tcl_WriteChars, buffering in line buffering mode} -setup {
    file delete $path(test1)
    set l ""
} -constraints {testchannel} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -buffering line -eofchar {}
    chan puts -nonewline $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    chan puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
} -cleanup {
    chan close $f
} -result {5 0 0 11}
test chan-io-29.6 {Tcl_WriteChars, buffering in no buffering mode} -setup {
    file delete $path(test1)
    set l ""
} -constraints {testchannel} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -buffering none -eofchar {}
    chan puts -nonewline $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    chan puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
} -cleanup {
    chan close $f
} -result {0 5 0 11}
test chan-io-29.7 {Tcl_Flush, full buffering} -setup {
    file delete $path(test1)
    set l ""
} -constraints {testchannel} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -buffering full -eofchar {}
    chan puts -nonewline $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    chan puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    chan flush $f

test chan-io-29.9 {Tcl_Flush, channel not writable} -body {
    chan flush stdin
} -returnCodes error -result {channel "stdin" wasn't opened for writing}
test chan-io-29.10 {Tcl_WriteChars, looping and buffering} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    set f2 [open $path(longfile) r]
    for {set x 0} {$x < 10} {incr x} {
	chan puts $f1 [chan gets $f2]
    }
    chan close $f2
    chan close $f1
    file size $path(test1)
} -result 387
test chan-io-29.11 {Tcl_WriteChars, no newline, implicit flush} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -eofchar {}
    set f2 [open $path(longfile) r]
    for {set x 0} {$x < 10} {incr x} {
	chan puts -nonewline $f1 [chan gets $f2]
    }
    chan close $f1
    chan close $f2
    file size $path(test1)

} -cleanup {
    chan close $f1
} -result {18 24 30}
test chan-io-29.19 {Explicit and implicit flushes} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    set x ""
    chan puts $f1 hello
    chan puts $f1 hello
    chan puts $f1 hello
    chan flush $f1
    lappend x [file size $path(test1)]
    chan puts $f1 hello
    chan flush $f1
    lappend x [file size $path(test1)]
    chan puts $f1 hello
    chan close $f1
    lappend x [file size $path(test1)]
} -result {18 24 30}
test chan-io-29.20 {Implicit flush when buffer is full} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    set line "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    for {set x 0} {$x < 100} {incr x} {
      chan puts $f1 $line
    }
    set z ""
    lappend z [file size $path(test1)]
    for {set x 0} {$x < 100} {incr x} {

    }
    string tolower $x
} -match glob -result {1 {error flushing "*": broken pipe} {posix epipe {broken pipe}}}
test chan-io-29.28 {Tcl_WriteChars, lf mode} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f hello\nthere\nand\nhere
    chan flush $f
    file size $path(test1)
} -cleanup {
    chan close $f
} -result 21
test chan-io-29.29 {Tcl_WriteChars, cr mode} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f hello\nthere\nand\nhere
    chan close $f
    file size $path(test1)
} -result 21
test chan-io-29.30 {Tcl_WriteChars, crlf mode} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f hello\nthere\nand\nhere
    chan close $f
    file size $path(test1)
} -result 25
test chan-io-29.31 {Tcl_WriteChars, background flush} -setup {
    file delete $path(pipe)
    file delete $path(output)

    chan close $f
} -result {abc def 0 {} 1 {} 1}
test chan-io-30.20 {Tcl_Write, ^Z in middle ignored, Tcl_Read lf} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format "abc\ndef\n%cghi\nqrs" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation lf -eofchar {}
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result "abc def 0 \x1Aghi 0 qrs 0 {} 1"
test chan-io-30.21 {Tcl_Write, ^Z in middle ignored, Tcl_Read cr} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format "abc\ndef\n%cghi\nqrs" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation cr -eofchar {}
    set x [chan gets $f]
    lappend l [string equal $x "abc\ndef\n\x1Aghi\nqrs\n"]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result {1 1 {} 1}
test chan-io-30.22 {Tcl_Write, ^Z in middle ignored, Tcl_Read crlf} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format "abc\ndef\n%cghi\nqrs" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation crlf -eofchar {}
    set x [chan gets $f]
    lappend l [string equal $x "abc\ndef\n\x1Aghi\nqrs\n"]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f

    chan close $f
} -result {abc def 0 {} 1}
test chan-io-31.22 {Tcl_Write, ^Z in middle ignored, Tcl_Gets lf} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation lf -eofchar {}
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result "abc def 0 \x1Aqrs 0 tuv 0 {} 1"
test chan-io-31.23 {Tcl_Write, ^Z in middle ignored, Tcl_Gets cr} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation cr -eofchar {}
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result "abc def 0 \x1Aqrs 0 tuv 0 {} 1"
test chan-io-31.24 {Tcl_Write, ^Z in middle ignored, Tcl_Gets crlf} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation crlf -eofchar {}
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]

    chan close $f
} -result {abc def 0 {} 1}
test chan-io-31.27 {Tcl_Write cr, ^Z in middle, Tcl_Gets auto} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation auto -eofchar \x1A
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result {abc def 0 {} 1}
test chan-io-31.28 {Tcl_Write cr, ^Z in middle, Tcl_Gets cr} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation cr -eofchar \x1A
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result {abc def 0 {} 1}
test chan-io-31.29 {Tcl_Write crlf, ^Z in middle, Tcl_Gets auto} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation auto -eofchar \x1A
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]
} -cleanup {
    chan close $f
} -result {abc def 0 {} 1}
test chan-io-31.30 {Tcl_Write crlf, ^Z in middle, Tcl_Gets crlf} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f [format "abc\ndef\n%cqrs\ntuv" 26]
    chan close $f
    set f [open $path(test1) r]
    chan configure $f -translation crlf -eofchar \x1A
    lappend l [chan gets $f]
    lappend l [chan gets $f]
    lappend l [chan eof $f]

    set x 24
    chan gets $f x(0)
} -returnCodes error -cleanup {
    chan close $f
} -result {can't set "x(0)": variable isn't array}
test chan-io-33.8 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 100} {incr y} {chan puts $f $x}
    chan close $f
    set f [open $path(test3) r]
    chan configure $f -translation lf
    for {set y 0} {$y < 100} {incr y} {chan gets $f}
    chan close $f
    set y
} 100
test chan-io-33.9 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 200} {incr y} {chan puts $f $x}
    chan close $f
    set f [open $path(test3) r]
    chan configure $f -translation lf
    for {set y 0} {$y < 200} {incr y} {chan gets $f}
    chan close $f
    set y
} 200
test chan-io-33.10 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 300} {incr y} {chan puts $f $x}
    chan close $f
    set f [open $path(test3) r]
    chan configure $f -translation lf
    for {set y 0} {$y < 300} {incr y} {chan gets $f}

} -cleanup {
    chan close $f1
} -result 0
test chan-io-34.2 {Tcl_Seek to offset from start} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 10 start
    chan tell $f1
} -cleanup {
    chan close $f1
} -result 10
test chan-io-34.3 {Tcl_Seek to end of file} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 0 end
    chan tell $f1
} -cleanup {
    chan close $f1
} -result 54
test chan-io-34.4 {Tcl_Seek to offset from end of file} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 -10 end
    chan tell $f1
} -cleanup {
    chan close $f1
} -result 44
test chan-io-34.5 {Tcl_Seek to offset from current position} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 10 current
    chan seek $f1 10 current
    chan tell $f1
} -cleanup {
    chan close $f1
} -result 20
test chan-io-34.6 {Tcl_Seek to offset from end of file} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 -10 end
    list [chan tell $f1] [chan read $f1]
} -cleanup {
    chan close $f1
} -result {44 {rstuvwxyz
}}
test chan-io-34.7 {Tcl_Seek to offset from end of file, then to current position} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 -10 end
    set c1 [chan tell $f1]
    set r1 [chan read $f1 5]

} -returnCodes error -cleanup {
    chan close $pipe
} -match glob -result {error during seek on "*": invalid argument}
test chan-io-34.9 {Tcl_Seek, testing buffered input flushing} -setup {
    file delete $path(test3)
} -body {
    set f [open $path(test3) w]
    chan configure $f -eofchar {}
    chan puts -nonewline $f "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    chan close $f
    set f [open $path(test3) RDWR]
    set x [chan read $f 1]
    chan seek $f 3
    lappend x [chan read $f 1]
    chan seek $f 0 start

    chan seek $f 2
    set x [chan gets $f]
    chan close $f
    list $x [viewFile test3]
} "zzy xyzzy"
test chan-io-34.12 {Tcl_Seek testing combination of write, seek back and read} {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f xyz\n123
    chan close $f
    set f [open $path(test3) a+]
    chan configure $f -translation lf -eofchar {}
    chan puts $f xyzzy
    chan flush $f
    set x [chan tell $f]
    chan seek $f -4 cur
    set y [chan gets $f]
    chan close $f
    list $x [viewFile test3] $y

} -cleanup {
    chan close $f1
} -result 0
test chan-io-34.14 {Tcl_Tell after seek to end of file} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 0 end
    chan tell $f1
} -cleanup {
    chan close $f1
} -result 54
test chan-io-34.15 {Tcl_Tell combined with seeking} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -eofchar {}
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan puts $f1 "abcdefghijklmnopqrstuvwxyz"
    chan close $f1
    set f1 [open $path(test1) r]
    chan seek $f1 10 start
    set c1 [chan tell $f1]
    chan seek $f1 10 current

    chan close $f1
    set c
} -1
test chan-io-34.18 {Tcl_Tell combined with seeking and reading} -setup {
    file delete $path(test2)
} -body {
    set f [open $path(test2) w]
    chan configure $f -translation lf -eofchar {}
    chan puts -nonewline $f "line1\nline2\nline3\nline4\nline5\n"
    chan close $f
    set f [open $path(test2)]
    chan configure $f -translation lf
    set x [chan tell $f]
    chan read $f 3
    lappend x [chan tell $f]
    chan seek $f 2
    lappend x [chan tell $f]
    chan seek $f 10 current
    lappend x [chan tell $f]
    chan seek $f 0 end
    lappend x [chan tell $f]
} -cleanup {
    chan close $f
} -result {0 3 2 12 30}
test chan-io-34.19 {Tcl_Tell combined with opening in append mode} -body {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f "abcdefghijklmnopqrstuvwxyz"
    chan puts $f "abcdefghijklmnopqrstuvwxyz"
    chan close $f
    set f [open $path(test3) a]
    chan tell $f
} -cleanup {
    chan close $f

} -cleanup {
    chan close $f
} -result {10 8 1}
test chan-io-35.12 {Tcl_Eof, eof char in middle, lf write, auto read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation auto -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {
    chan close $f
} -result {17 8 1}
test chan-io-35.13 {Tcl_Eof, eof char in middle, lf write, lf read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation lf -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {
    chan close $f
} -result {17 8 1}
test chan-io-35.14 {Tcl_Eof, eof char in middle, cr write, auto read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation auto -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {
    chan close $f
} -result {17 8 1}
test chan-io-35.15 {Tcl_Eof, eof char in middle, cr write, cr read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation cr -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation cr -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {
    chan close $f
} -result {17 8 1}
test chan-io-35.16 {Tcl_Eof, eof char in middle, crlf write, auto read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation auto -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {
    chan close $f
} -result {21 8 1}
test chan-io-35.17 {Tcl_Eof, eof char in middle, crlf write, crlf read} -setup {
    file delete $path(test1)
} -body {
    set f [open $path(test1) w]
    chan configure $f -translation crlf -eofchar {}
    chan puts $f [format abc\ndef\n%cqrs\nuvw 26]
    chan close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    chan configure $f -translation crlf -eofchar \x1A
    list $c [string length [chan read $f]] [chan eof $f]
} -cleanup {

    chan close $f1
} -result {0 21}
test chan-io-39.8 {Tcl_SetChannelOption, different buffering options} -setup {
    file delete $path(test1)
    set l ""
} -body {
    set f1 [open $path(test1) w]
    chan configure $f1 -translation lf -buffering none -eofchar {}
    chan puts -nonewline $f1 hello
    lappend l [file size $path(test1)]
    chan puts -nonewline $f1 hello
    lappend l [file size $path(test1)]
    chan configure $f1 -buffering full
    chan puts -nonewline $f1 hello
    lappend l [file size $path(test1)]

    file stat $path(test3) stats
    format 0o%03o [expr {$stats(mode) & 0o777}]
} -result [format 0o%03o [expr {0o666 & ~ $umaskValue}]]
test chan-io-40.4 {POSIX open access modes: CREAT} -setup {
    file delete $path(test3)
} -body {
    set f [open $path(test3) w]
    chan configure $f -eofchar {}
    chan puts $f xyzzy
    chan close $f
    set f [open $path(test3) {WRONLY CREAT}]
    chan configure $f -eofchar {}
    chan puts -nonewline $f "ab"
    chan close $f
    set f [open $path(test3) r]
    chan gets $f
} -cleanup {
    chan close $f
} -result abzzy
test chan-io-40.5 {POSIX open access modes: APPEND} -setup {
    file delete $path(test3)
    set x ""
} -body {
    set f [open $path(test3) w]
    chan configure $f -translation lf -eofchar {}
    chan puts $f xyzzy
    chan close $f
    set f [open $path(test3) {WRONLY APPEND}]
    chan configure $f -translation lf
    chan puts $f "new line"
    chan seek $f 0
    chan puts $f "abc"

    chan close $f
    open $path(test3) {WRONLY CREAT EXCL}
} -returnCodes error -result {(?i)couldn't open ".*test3": file (already )?exists}
test chan-io-40.7 {POSIX open access modes: EXCL} -setup {
    file delete $path(test3)
} -body {
    set f [open $path(test3) {WRONLY CREAT EXCL}]
    chan configure $f -eofchar {}
    chan puts $f "A test line"
    chan close $f
    viewFile test3
} -result {A test line}
test chan-io-40.8 {POSIX open access modes: TRUNC} -setup {
    file delete $path(test3)
} -body {

test chan-io-40.12 {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 chan-io-40.13 {POSIX open access modes: WRONLY} -body {
    makeFile xyzzy test3
    set f [open $path(test3) WRONLY]
    chan configure $f -eofchar {}
    chan puts -nonewline $f "ab"
    chan seek $f 0 current
    set x [list [catch {chan gets $f} msg] $msg]
    chan close $f
    lappend x [viewFile test3]
} -match glob -result {1 {channel "*" wasn't opened for reading} abzzy}
test chan-io-40.14 {POSIX open access modes: RDWR} -match regexp -body {

# size
test cmdAH-27.1 {Tcl_FileObjCmd: size} -returnCodes error -body {
    file size a b
} -result {wrong # args: should be "file size name"}
test cmdAH-27.2 {Tcl_FileObjCmd: size} {
    set oldsize [file size $gorpfile]
    set f [open $gorpfile a]
    fconfigure $f -translation lf -eofchar {}
    puts $f "More text"
    close $f
    expr {[file size $gorpfile] - $oldsize}
} {10}
test cmdAH-27.3 {Tcl_FileObjCmd: size} {
    list [catch {file size _bogus_} msg] [string tolower $msg] $errorCode
} {1 {could not read "_bogus_": no such file or directory} {POSIX ENOENT {no such file or directory}}}

testConstraint makeFileInHome [expr {![file exists ~/_test_] && [file writable ~]}]

# set up a long data file for some of the following tests

set path(longfile) [makeFile {} longfile]
set f [open $path(longfile) w]
fconfigure $f -eofchar {} -translation lf
for { set i 0 } { $i < 100 } { incr i} {
    puts $f "#123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
\#123456789abcdef01
\#"
    }
close $f

    set t [testchannel type $f]
    close $f
    string compare $t file
} 0

test io-25.1 {Tcl_GetChannelHandle, input} {testchannel} {
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f "1234567890\n098765432"
    close $f
    set f [open $path(test1) r]
    gets $f
    set l ""
    lappend l [testchannel inputbuffered $f]
    lappend l [tell $f]

    set s [file size $path(test1)]
    close $f
    set s
} 0
test io-27.2 {FlushChannel, some output buffered} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set l ""
    puts $f hello
    lappend l [file size $path(test1)]
    flush $f
    lappend l [file size $path(test1)]
    close $f
    lappend l [file size $path(test1)]
    set l
} {0 6 6}
test io-27.3 {FlushChannel, implicit flush on close} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set l ""
    puts $f hello
    lappend l [file size $path(test1)]
    close $f
    lappend l [file size $path(test1)]
    set l
} {0 6}
test io-27.4 {FlushChannel, implicit flush when buffer fills} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    fconfigure $f -buffersize 60
    set l ""
    lappend l [file size $path(test1)]
    for {set i 0} {$i < 12} {incr i} {
	puts $f hello
    }
    lappend l [file size $path(test1)]
    flush $f
    lappend l [file size $path(test1)]
    close $f
    set l
} {0 60 72}
test io-27.5 {FlushChannel, implicit flush when buffer fills and on close} \
	{unixOrWin} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -buffersize 60 -eofchar {}
    set l ""
    lappend l [file size $path(test1)]
    for {set i 0} {$i < 12} {incr i} {
	puts $f hello
    }
    lappend l [file size $path(test1)]
    close $f

    # This test may fail on old Unix systems (seen on IRIX64 6.5) with
    # obsolete gettimeofday() calls.  See Tcl Bugs 3530533, 1942197.
    file delete $path(pipe)
    file delete $path(output)
    set f [open $path(pipe) w]
    puts $f "set f \[[list open $path(output) w]]"
    puts $f {
	fconfigure $f -translation lf -buffering none -eofchar {}
	while {![eof stdin]} {
	    after 20
	    puts -nonewline $f [read stdin 1024]
	}
	close $f
    }
    close $f

    set f [open $path(pipe) w]
    puts $f {

	# Need to not have eof char appended on close, because the other
	# side of the pipe already closed, so that writing would cause an
	# error "invalid file".

	fconfigure stdout -eofchar {}
	fconfigure stderr -eofchar {}

	set f [open $path(output) w]
	fconfigure $f -translation lf -buffering none
	for {set x 0} {$x < 20} {incr x} {
	    after 20
	    puts -nonewline $f [read stdin 1024]
	}
	close $f
    }
    close $f
    set x 01234567890123456789012345678901
    for {set i 0} {$i < 11} {incr i} {
	set x "$x$x"
    }
    set f [open $path(output) w]
    close $f
    set f [open "|[list [interpreter] pipe]" r+]
    fconfigure $f -blocking off -eofchar {}

    puts -nonewline $f $x
    close $f
    set counter 0
    while {([file size $path(output)] < 20480) && ($counter < 1000)} {
	after 20 [list incr [namespace which -variable counter]]
	vwait [namespace which -variable counter]

test io-29.1 {Tcl_WriteChars, channel not writable} {
    list [catch {puts stdin hello} msg] $msg
} {1 {channel "stdin" wasn't opened for writing}}
test io-29.2 {Tcl_WriteChars, empty string} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -eofchar {}
    puts -nonewline $f ""
    close $f
    file size $path(test1)
} 0
test io-29.3 {Tcl_WriteChars, nonempty string} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -eofchar {}
    puts -nonewline $f hello
    close $f
    file size $path(test1)
} 5
test io-29.4 {Tcl_WriteChars, buffering in full buffering mode} {testchannel} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -buffering full -eofchar {}
    puts $f hello
    set l ""
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    flush $f
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    close $f
    set l
} {6 0 0 6}
test io-29.5 {Tcl_WriteChars, buffering in line buffering mode} {testchannel} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -buffering line -eofchar {}
    puts -nonewline $f hello
    set l ""
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    close $f
    set l
} {5 0 0 11}
test io-29.6 {Tcl_WriteChars, buffering in no buffering mode} {testchannel} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -buffering none -eofchar {}
    puts -nonewline $f hello
    set l ""
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    close $f
    set l
} {0 5 0 11}
test io-29.7 {Tcl_Flush, full buffering} {testchannel} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -buffering full -eofchar {}
    puts -nonewline $f hello
    set l ""
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]
    puts $f hello
    lappend l [testchannel outputbuffered $f]
    lappend l [file size $path(test1)]

} {5 0 0 5 0 11 0 11}
test io-29.9 {Tcl_Flush, channel not writable} {
    list [catch {flush stdin} msg] $msg
} {1 {channel "stdin" wasn't opened for writing}}
test io-29.10 {Tcl_WriteChars, looping and buffering} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    set f2 [open $path(longfile) r]
    for {set x 0} {$x < 10} {incr x} {
	puts $f1 [gets $f2]
    }
    close $f2
    close $f1
    file size $path(test1)
} 387
test io-29.11 {Tcl_WriteChars, no newline, implicit flush} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -eofchar {}
    set f2 [open $path(longfile) r]
    for {set x 0} {$x < 10} {incr x} {
	puts -nonewline $f1 [gets $f2]
    }
    close $f1
    close $f2
    file size $path(test1)

    lappend x [file size $path(test1)]
    close $f1
    set x
} {18 24 30}
test io-29.19 {Explicit and implicit flushes} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    set x ""
    puts $f1 hello
    puts $f1 hello
    puts $f1 hello
    flush $f1
    lappend x [file size $path(test1)]
    puts $f1 hello
    flush $f1
    lappend x [file size $path(test1)]
    puts $f1 hello
    close $f1
    lappend x [file size $path(test1)]
    set x
} {18 24 30}
test io-29.20 {Implicit flush when buffer is full} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    set line "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    for {set x 0} {$x < 100} {incr x} {
      puts $f1 $line
    }
    set z ""
    lappend z [file size $path(test1)]
    for {set x 0} {$x < 100} {incr x} {

    }
    regsub {".*":} $x {"":} x
    string tolower $x
} {1 {error flushing "": broken pipe} {posix epipe {broken pipe}}}
test io-29.28 {Tcl_WriteChars, lf mode} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f hello\nthere\nand\nhere
    flush $f
    set s [file size $path(test1)]
    close $f
    set s
} 21
test io-29.29 {Tcl_WriteChars, cr mode} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    puts $f hello\nthere\nand\nhere
    close $f
    file size $path(test1)
} 21
test io-29.30 {Tcl_WriteChars, crlf mode} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    puts $f hello\nthere\nand\nhere
    close $f
    file size $path(test1)
} 25
test io-29.31 {Tcl_WriteChars, background flush} stdio {
    # This test may fail on old Unix systems (seen on IRIX64 6.5) with
    # obsolete gettimeofday() calls.  See Tcl Bugs 3530533, 1942197.

    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1 {} 1}
test io-30.20 {Tcl_Write, ^Z in middle ignored, Tcl_Read lf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set s [format "abc\ndef\n%cghi\nqrs" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation lf -eofchar {}
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} "abc def 0 \x1Aghi 0 qrs 0 {} 1"
test io-30.21 {Tcl_Write, ^Z in middle ignored, Tcl_Read cr} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set s [format "abc\ndef\n%cghi\nqrs" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation cr -eofchar {}
    set l ""
    set x [gets $f]
    lappend l [string compare $x "abc\ndef\n\x1Aghi\nqrs\n"]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} {0 1 {} 1}
test io-30.22 {Tcl_Write, ^Z in middle ignored, Tcl_Read crlf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set s [format "abc\ndef\n%cghi\nqrs" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar {}
    set l ""
    set x [gets $f]
    lappend l [string compare $x "abc\ndef\n\x1Aghi\nqrs\n"]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f

    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1}
test io-31.22 {Tcl_Write, ^Z in middle ignored, Tcl_Gets lf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation lf -eofchar {}
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} "abc def 0 \x1Aqrs 0 tuv 0 {} 1"
test io-31.23 {Tcl_Write, ^Z in middle ignored, Tcl_Gets cr} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation cr -eofchar {}
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} "abc def 0 \x1Aqrs 0 tuv 0 {} 1"
test io-31.24 {Tcl_Write, ^Z in middle ignored, Tcl_Gets crlf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar {}
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]

    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1}
test io-31.27 {Tcl_Write cr, ^Z in middle, Tcl_Gets auto} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation auto -eofchar \x1A
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1}
test io-31.28 {Tcl_Write cr, ^Z in middle, Tcl_Gets cr} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation cr -eofchar \x1A
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1}
test io-31.29 {Tcl_Write crlf, ^Z in middle, Tcl_Gets auto} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation auto -eofchar \x1A
    set l ""
    lappend l [gets $f]
    lappend l [gets $f]
    lappend l [eof $f]
    lappend l [gets $f]
    lappend l [eof $f]
    close $f
    set l
} {abc def 0 {} 1}
test io-31.30 {Tcl_Write crlf, ^Z in middle, Tcl_Gets crlf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    set s [format "abc\ndef\n%cqrs\ntuv" 26]
    puts $f $s
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar \x1A
    set l ""
    lappend l [gets $f]

    set f [open $path(test3) r]
    set result [list [catch {gets $f x(0)} msg] $msg]
    close $f
    set result
} {1 {can't set "x(0)": variable isn't array}}
test io-33.8 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 100} {incr y} {puts $f $x}
    close $f
    set f [open $path(test3) r]
    fconfigure $f -translation lf
    for {set y 0} {$y < 100} {incr y} {gets $f}
    close $f
    set y
} 100
test io-33.9 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 200} {incr y} {puts $f $x}
    close $f
    set f [open $path(test3) r]
    fconfigure $f -translation lf
    for {set y 0} {$y < 200} {incr y} {gets $f}
    close $f
    set y
} 200
test io-33.10 {Tcl_Gets, exercising double buffering} {
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    set x ""
    for {set y 0} {$y < 99} {incr y} {set x "a$x"}
    for {set y 0} {$y < 300} {incr y} {puts $f $x}
    close $f
    set f [open $path(test3) r]
    fconfigure $f -translation lf
    for {set y 0} {$y < 300} {incr y} {gets $f}

    set c [tell $f1]
    close $f1
    set c
} 0
test io-34.2 {Tcl_Seek to offset from start} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 10 start
    set c [tell $f1]
    close $f1
    set c
} 10
test io-34.3 {Tcl_Seek to end of file} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 0 end
    set c [tell $f1]
    close $f1
    set c
} 54
test io-34.4 {Tcl_Seek to offset from end of file} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 -10 end
    set c [tell $f1]
    close $f1
    set c
} 44
test io-34.5 {Tcl_Seek to offset from current position} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 10 current
    seek $f1 10 current
    set c [tell $f1]
    close $f1
    set c
} 20
test io-34.6 {Tcl_Seek to offset from end of file} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 -10 end
    set c [tell $f1]
    set r [read $f1]
    close $f1
    list $c $r
} {44 {rstuvwxyz
}}
test io-34.7 {Tcl_Seek to offset from end of file, then to current position} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 -10 end
    set c1 [tell $f1]
    set r1 [read $f1 5]

    close $f1
    regsub {".*":} $x {"":} x
    string tolower $x
} {1 {error during seek on "": invalid argument}}
test io-34.9 {Tcl_Seek, testing buffered input flushing} {
    file delete $path(test3)
    set f [open $path(test3) w]
    fconfigure $f -eofchar {}
    puts -nonewline $f "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
    close $f
    set f [open $path(test3) RDWR]
    set x [read $f 1]
    seek $f 3
    lappend x [read $f 1]
    seek $f 0 start

    seek $f 2
    set x [gets $f]
    close $f
    list $x [viewFile test3]
} "zzy xyzzy"
test io-34.12 {Tcl_Seek testing combination of write, seek back and read} {
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f xyz\n123
    close $f
    set f [open $path(test3) a+]
    fconfigure $f -translation lf -eofchar {}
    puts $f xyzzy
    flush $f
    set x [tell $f]
    seek $f -4 cur
    set y [gets $f]
    close $f
    list $x [viewFile test3] $y
} {14 {xyz
123
xyzzy} zzy}
test io-34.13 {Tcl_Tell at start of file} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    set p [tell $f1]
    close $f1
    set p
} 0
test io-34.14 {Tcl_Tell after seek to end of file} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 0 end
    set c1 [tell $f1]
    close $f1
    set c1
} 54
test io-34.15 {Tcl_Tell combined with seeking} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {}
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    puts $f1 "abcdefghijklmnopqrstuvwxyz"
    close $f1
    set f1 [open $path(test1) r]
    seek $f1 10 start
    set c1 [tell $f1]
    seek $f1 10 current

    gets $f1
    close $f1
    set c
} -1
test io-34.18 {Tcl_Tell combined with seeking and reading} {
    file delete $path(test2)
    set f [open $path(test2) w]
    fconfigure $f -translation lf -eofchar {}
    puts -nonewline $f "line1\nline2\nline3\nline4\nline5\n"
    close $f
    set f [open $path(test2)]
    fconfigure $f -translation lf
    set x [tell $f]
    read $f 3
    lappend x [tell $f]
    seek $f 2
    lappend x [tell $f]
    seek $f 10 current
    lappend x [tell $f]
    seek $f 0 end
    lappend x [tell $f]
    close $f
    set x
} {0 3 2 12 30}
test io-34.19 {Tcl_Tell combined with opening in append mode} {
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f "abcdefghijklmnopqrstuvwxyz"
    puts $f "abcdefghijklmnopqrstuvwxyz"
    close $f
    set f [open $path(test3) a]
    set c [tell $f]
    close $f
    set c

    set e [eof $f]
    close $f
    list $s $l $e
} {10 8 1}
test io-35.12 {Tcl_Eof, eof char in middle, lf write, auto read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation auto -eofchar \x1A
    set l [string length [read $f]]
    set e [eof $f]
    close $f
    list $c $l $e
} {17 8 1}
test io-35.13 {Tcl_Eof, eof char in middle, lf write, lf read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation lf -eofchar \x1A
    set l [string length [read $f]]
    set e [eof $f]
    close $f
    list $c $l $e
} {17 8 1}
test io-35.14 {Tcl_Eof, eof char in middle, cr write, auto read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation auto -eofchar \x1A
    set l [string length [read $f]]
    set e [eof $f]
    close $f
    list $c $l $e
} {17 8 1}
test io-35.15 {Tcl_Eof, eof char in middle, cr write, cr read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation cr -eofchar \x1A
    set l [string length [read $f]]
    set e [eof $f]
    close $f
    list $c $l $e
} {17 8 1}
test io-35.16 {Tcl_Eof, eof char in middle, crlf write, auto read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation auto -eofchar \x1A
    set l [string length [read $f]]
    set e [eof $f]
    close $f
    list $c $l $e
} {21 8 1}
test io-35.17 {Tcl_Eof, eof char in middle, crlf write, crlf read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar \x1A
    set l [string length [read $f]]

    set e [eof $f]
    close $f
    list $s $l $e [scan [string index $in end] %c]
} -result {1 1 1 13}
test io-35.19 {Tcl_Eof, eof char in middle, cr write, crlf read} -body {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set i [format abc\ndef\n%cqrs\nuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar \x1A
    set l [string length [set in [read $f]]]
    set e [eof $f]
    close $f
    list $c $l $e [scan [string index $in end] %c]
} -result {17 8 1 13}
test io-35.20 {Tcl_Eof, eof char in middle, cr write, crlf read} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation cr -eofchar {}
    set i [format \n%cqrsuvw 26]
    puts $f $i
    close $f
    set c [file size $path(test1)]
    set f [open $path(test1) r]
    fconfigure $f -translation crlf -eofchar \x1A
    set l [string length [set in [read $f]]]

    lappend x [gets $f1]
    lappend x [fblocked $f1]
    close $f1
    set x
} {{} 1 hello 0 {} 1}
test io-36.1.1 {Tcl_InputBlocked on nonblocking binary pipe} stdio {
    set f1 [open "|[list [interpreter]]" r+]
    chan configure $f1 -encoding binary -translation lf -eofchar {}
    puts $f1 {
	chan configure stdout -encoding binary -translation lf -eofchar {}
	puts hello_from_pipe
    }
    flush $f1
    gets $f1
    fconfigure $f1 -blocking off -buffering full
    puts $f1 {puts hello}
    set x ""

    close $f1
    set x
} {0 21}
test io-39.8 {Tcl_SetChannelOption, different buffering options} {
    file delete $path(test1)
    set f1 [open $path(test1) w]
    set l ""
    fconfigure $f1 -translation lf -buffering none -eofchar {}
    puts -nonewline $f1 hello
    lappend l [file size $path(test1)]
    puts -nonewline $f1 hello
    lappend l [file size $path(test1)]
    fconfigure $f1 -buffering full
    puts -nonewline $f1 hello
    lappend l [file size $path(test1)]

    close $f
    file stat $path(test3) stats
    format 0o%03o [expr {$stats(mode)&0o777}]
} [format 0o%03o [expr {0o666 & ~ $umaskValue}]]
test io-40.4 {POSIX open access modes: CREAT} {
    file delete $path(test3)
    set f [open $path(test3) w]
    fconfigure $f -eofchar {}
    puts $f xyzzy
    close $f
    set f [open $path(test3) {WRONLY CREAT}]
    fconfigure $f -eofchar {}
    puts -nonewline $f "ab"
    close $f
    set f [open $path(test3) r]
    set x [gets $f]
    close $f
    set x
} abzzy
test io-40.5 {POSIX open access modes: APPEND} {
    file delete $path(test3)
    set f [open $path(test3) w]
    fconfigure $f -translation lf -eofchar {}
    puts $f xyzzy
    close $f
    set f [open $path(test3) {WRONLY APPEND}]
    fconfigure $f -translation lf
    puts $f "new line"
    seek $f 0
    puts $f "abc"

    puts $f xyzzy
    close $f
    open $path(test3) {WRONLY CREAT EXCL}
} -returnCodes error -result {(?i)couldn't open ".*test3": file (already )?exists}
test io-40.7 {POSIX open access modes: EXCL} {
    file delete $path(test3)
    set f [open $path(test3) {WRONLY CREAT EXCL}]
    fconfigure $f -eofchar {}
    puts $f "A test line"
    close $f
    viewFile test3
} {A test line}
test io-40.8 {POSIX open access modes: TRUNC} {
    file delete $path(test3)
    set f [open $path(test3) w]

test io-40.12 {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 io-40.13 {POSIX open access modes: WRONLY} {
    makeFile xyzzy test3
    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
    lappend x [viewFile test3]
    string compare [string tolower $x] \
	[list 1 "channel \"$f\" wasn't opened for reading" abzzy]

    set fn [makeFile {} io-75.6]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # \x81 is an incomplete byte sequence in utf-8
    puts -nonewline $f A\x81
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} \
	    -translation lf -profile strict
} -body {
    gets $f
} -cleanup {
    close $f
    removeFile io-75.6
} -match glob -returnCodes 1 -result {error reading "file*":\
	invalid or incomplete multibyte or wide character}

test io-75.6.1 {invalid utf-8 encoding, blocking gets is not ignored (-profile strict)} -setup {
    set fn [makeFile {} io-75.6.1]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # utf-8: \xC3 requires a 2nd byte > x80, but <x80 is delivered
    puts -nonewline $f A\xC3B
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} \
	    -translation lf -profile strict
} -body {
    gets $f
} -cleanup {
    close $f
    removeFile io-75.6.1
} -match glob -returnCodes 1 -result {error reading "file*":\
	invalid or incomplete multibyte or wide character}

test io-75.6.2 {invalid utf-8 encoding, blocking gets is not ignored (-profile strict), recover functionality} -setup {
    set fn [makeFile {} io-75.6.2]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # utf-8: \xC3 requires a 2nd byte > x80, but <x80 is delivered
    puts -nonewline $f A\xC3B
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} \
	    -translation lf -profile strict
} -body {
    set l {}
    lappend l [catch {gets $f}]
    lappend l [tell $f]
    fconfigure $f -encoding binary
    lappend l [expr {[gets $f] eq "A\xC3B"}]

    set fn [makeFile {} io-75.6.3]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # utf-8: \xC3 requires a 2nd byte > x80, but <x80 is delivered
    puts -nonewline $f A\xC3B
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} \
	    -translation lf -profile strict -blocking 0
} -body {
    gets $f
} -cleanup {
    close $f
    removeFile io-75.6.3
} -match glob -returnCodes 1 -result {error reading "file*":\
	invalid or incomplete multibyte or wide character}

test io-75.6.4 {incomplete utf-8 encoding, non blocking gets is not ignored (-profile strict)} -setup {
    set fn [makeFile {} io-75.6.4]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # \x81 is an incomplete byte sequence in utf-8
    puts -nonewline $f A\x81
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} \
	    -translation lf -profile strict -blocking 0
} -body {
    gets $f
	# only the 2nd gets returns the error
	gets $f
} -cleanup {
    close $f

    set fn [makeFile {} io-75.7]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # \x81 is invalid in utf-8
    puts -nonewline $f A\x81
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} -translation lf \
	    -profile strict
} -body {
    list [catch {read $f} msg data] $msg [dict get $data -data]
} -cleanup {
    close $f
    removeFile io-75.7
    unset msg data f fn

    set f [open $fn w+]
    fconfigure $f -encoding binary
    # In shiftjis, \x81 starts a two-byte sequence.
    # But 2nd byte \xFF is not allowed
    puts -nonewline $f A\x81\xFFA
    flush $f
    seek $f 0
    fconfigure $f -encoding shiftjis -blocking 0 -eofchar {} -translation lf \
	-profile strict
} -body {
    set d [read $f]
    binary scan $d H* hd
    lappend hd [catch {set d [read $f]} msg data] $msg [dict exists $data -data]
} -cleanup {
    close $f

    set res {}
    set fn [makeFile {} io-75.12]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    puts -nonewline $f A\x81
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -buffering none -eofchar {} -translation lf
} -body {
    catch {read $f} errmsg
    lappend res $errmsg
    chan configure $f -profile tcl8
    seek $f 0
    set d [read $f]
    binary scan $d H* hd

    set fn [makeFile {} io-75.13]
    set f [open $fn w+]
    fconfigure $f -encoding binary
    # \x81 is invalid in utf-8
    puts -nonewline $f A\x81
    flush $f
    seek $f 0
    fconfigure $f -encoding utf-8 -blocking 0 -eofchar {} -translation lf \
	-profile strict
} -body {
    set d [read $f]
    binary scan $d H* hd
    lappend hd [catch {read $f} msg data] $msg [dict exists $data -data]
} -cleanup {
    close $f

} -setup {
    set chan [file tempfile]
    fconfigure $chan -encoding binary
    # \xC0\n is an invalid utf-8 sequence
    puts -nonewline $chan a\nb\nc\xC0\nd\n
    flush $chan
    seek $chan 0
    fconfigure $chan -encoding utf-8 -buffering none -eofchar {} \
	-translation auto -profile strict
} -body {
    set res [gets $chan]
    lappend res [gets $chan]
    lappend res [catch {gets $chan} msg data] $msg [dict exists $data -data]
    chan configure $chan -profile tcl8
    lappend res [gets $chan]

   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 binary

test iocmd-8.6 {fconfigure command} -returnCodes error -body {
    fconfigure stdin -translation froboz
} -result {bad value for -translation: must be one of auto, binary, cr, lf, crlf, or platform}
test iocmd-8.7 {fconfigure command} -setup {
    file delete $path(test1)
} -body {
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -eofchar {} -encoding utf-16
    fconfigure $f1
} -cleanup {
    catch {close $f1}
} -result {-blocking 1 -buffering full -buffersize 4096 -encoding utf-16 -eofchar {} -profile strict -translation lf}
test iocmd-8.8 {fconfigure command} -setup {
    file delete $path(test1)
    set x {}
} -body {
    set f1 [open $path(test1) w]
    fconfigure $f1 -translation lf -buffering line -buffersize 3030 \
		-eofchar {} -encoding utf-16 -profile tcl8
    lappend x [fconfigure $f1 -buffering]
    lappend x [fconfigure $f1]
} -cleanup {
    catch {close $f1}
} -result {line {-blocking 1 -buffering line -buffersize 3030 -encoding utf-16 -eofchar {} -profile tcl8 -translation lf}}
test iocmd-8.9 {fconfigure command} -setup {
    file delete $path(test1)

} -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} {unix} {
    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)

    set res {}
    proc foo args {oninit; onfinal; track; note MUST_NOT_HAPPEN; return}
    set c [chan create {r w} foo]
    note [fconfigure $c]
    close $c
    rename foo {}
    set res
} -result {{-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} -profile * -translation {auto *}}}
test iocmd-25.2 {chan configure, cgetall, no options} -match glob -body {
    set res {}
    proc foo args {oninit cget cgetall; onfinal; track; return ""}
    set c [chan create {r w} foo]
    note [fconfigure $c]
    close $c
    rename foo {}
    set res
} -result {{cgetall rc*} {-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} -profile * -translation {auto *}}}
test iocmd-25.3 {chan configure, cgetall, regular result} -match glob -body {
    set res {}
    proc foo args {
	oninit cget cgetall; onfinal; track
	return {-bar foo -snarf x}
    }
    set c [chan create {r w} foo]
    note [fconfigure $c]
    close $c
    rename foo {}
    set res
} -result {{cgetall rc*} {-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} -profile * -translation {auto *} -bar foo -snarf x}}
test iocmd-25.4 {chan configure, cgetall, bad result, list of uneven length} -match glob -body {
    set res {}
    proc foo {args} {
	oninit cget cgetall; onfinal; track
	return "-bar"
    }
    set c [chan create {r w} foo]

	note [fconfigure $c]
	close $c
	notes
    } c]
    rename foo {}
    set res
} -constraints {testchannel thread} \
    -result {{-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} * -translation {auto *}}}
test iocmd.tf-25.2 {chan configure, cgetall, no options} -match glob -body {
    set res {}
    proc foo {args} {oninit cget cgetall; onfinal; track; return ""}
    set c [chan create {r w} foo]
    notes [inthread $c {
	note [fconfigure $c]
	close $c
	notes
    } c]
    rename foo {}
    set res
} -constraints {testchannel thread} \
    -result {{cgetall rc*} {-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} * -translation {auto *}}}
test iocmd.tf-25.3 {chan configure, cgetall, regular result} -match glob -body {
    set res {}
    proc foo {args} {
	oninit cget cgetall; onfinal; track
	return "-bar foo -snarf x"
    }
    set c [chan create {r w} foo]
    notes [inthread $c {
	note [fconfigure $c]
	close $c
	notes
    } c]
    rename foo {}
    set res
} -constraints {testchannel thread} \
    -result {{cgetall rc*} {-blocking 1 -buffering full -buffersize 4096 -encoding * -eofchar {} * -translation {auto *} -bar foo -snarf x}}
test iocmd.tf-25.4 {chan configure, cgetall, bad result, list of uneven length} -match glob -body {
    set res {}
    proc foo {args} {
	oninit cget cgetall; onfinal; track
	return "-bar"
    }
    set c [chan create {r w} foo]

	    [file delete -force -- foo.test]
} {0 {} 0 1 {}}
test macOSXFCmd-2.7 {MacOSXSetFileAttribute - rsrclength} {macosxFileAttr notRoot nonPortable} {
    catch {file delete -force -- foo.test}
    close [open foo.test w]
    catch {
	set f [open foo.test/..namedfork/rsrc w]
	fconfigure $f -translation lf -eofchar {}
	puts -nonewline $f "foo"
	close $f
    }
    list [catch {file attributes foo.test -rsrclength} msg] $msg \
	    [catch {file attributes foo.test -rsrclength 0} msg] $msg \
	    [catch {file attributes foo.test -rsrclength} msg] $msg \
	    [file delete -force -- foo.test]
} {0 3 0 {} 0 0 {}}

test macOSXFCmd-3.1 {MacOSXCopyFileAttributes} {macosxFileAttr notRoot} {
    catch {file delete -force -- foo.test}
    catch {file delete -force -- bar.test}
    close [open foo.test w]
    catch {
	file attributes foo.test -creator FOOC -type FOOT -hidden 1
	set f [open foo.test/..namedfork/rsrc w]
	fconfigure $f -translation lf -eofchar {}
	puts -nonewline $f "foo"
	close $f
	file copy foo.test bar.test
    }
    list [catch {file attributes bar.test -creator} msg] $msg \
	    [catch {file attributes bar.test -type} msg] $msg \
	    [catch {file attributes bar.test -hidden} msg] $msg \