# channels are added to the channel table of the interpreter.

test io-17.1 {GetChannelTable, DeleteChannelTable on std handles} {testchannel} {
    set l1 [testchannel refcount stdin]
    eof stdin
    interp create x
    set l ""
    lappend l [expr {[testchannel refcount stdin] - $l1}]
    x eval {eof stdin}
    lappend l [expr {[testchannel refcount stdin] - $l1}]
    interp delete x
    lappend l [expr {[testchannel refcount stdin] - $l1}]
    set l
} {0 1 0}
test io-17.2 {GetChannelTable, DeleteChannelTable on std handles} {testchannel} {
    set l1 [testchannel refcount stdout]
    eof stdin
    interp create x
    set l ""
    lappend l [expr {[testchannel refcount stdout] - $l1}]
    x eval {eof stdout}
    lappend l [expr {[testchannel refcount stdout] - $l1}]
    interp delete x
    lappend l [expr {[testchannel refcount stdout] - $l1}]
    set l
} {0 1 0}
test io-17.3 {GetChannelTable, DeleteChannelTable on std handles} {testchannel} {
    set l1 [testchannel refcount stderr]
    eof stdin
    interp create x
    set l ""
    lappend l [expr {[testchannel refcount stderr] - $l1}]
    x eval {eof stderr}
    lappend l [expr {[testchannel refcount stderr] - $l1}]
    interp delete x
    lappend l [expr {[testchannel refcount stderr] - $l1}]
    set l
} {0 1 0}

test io-18.1 {Tcl_RegisterChannel, Tcl_UnregisterChannel} {testchannel} {
    file delete -force $path(test1)
    set l ""
    set f [open $path(test1) w]

} {6 6 0 6}

test io-26.1 {Tcl_GetChannelInstanceData} stdio {
    # "pid" command uses Tcl_GetChannelInstanceData
    # Don't care what pid is (but must be a number), just want to exercise it.

    set f [open "|[list [interpreter] << exit]"]
    expr {[pid $f]}
    close $f
} {}

# Test flushing. The functions tested here are FlushChannel.

test io-27.1 {FlushChannel, no output buffered} {
    file delete $path(test1)

    }
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation auto
    set c [read $f]
    close $f
    string length $c
} [expr {700*15+1}]
test io-30.14 {Tcl_Write crlf on block boundary, Tcl_Read crlf} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf
    set line "123456789ABCDE"	;# 14 char plus crlf
    puts -nonewline $f x	;# shift crlf across block boundary
    for {set i 0} {$i < 700} {incr i} {
	puts $f $line
    }
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation crlf
    set c [read $f]
    close $f
    string length $c
} [expr {700*15+1}]
test io-30.15 {Tcl_Write mixed, Tcl_Read auto} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation lf
    puts $f hello\nthere\nand\rhere
    close $f
    set f [open $path(test1) r]

    fconfigure $f -translation crlf
    set c ""
    while {[gets $f line] >= 0} {
	append c $line\n
    }
    close $f
    string length $c
} [expr {700*15+1}]
test io-31.32 {Tcl_Write crlf on block boundary, Tcl_Gets auto} {
    file delete $path(test1)
    set f [open $path(test1) w]
    fconfigure $f -translation crlf
    set line "123456789ABCDE"	;# 14 char plus crlf
    puts -nonewline $f x	;# shift crlf across block boundary
    for {set i 0} {$i < 700} {incr i} {
	puts $f $line
    }
    close $f
    set f [open $path(test1) r]
    fconfigure $f -translation auto
    set c ""
    while {[gets $f line] >= 0} {
	append c $line\n
    }
    close $f
    string length $c
} [expr {700*15+1}]

# Test Tcl_Read and buffering.

test io-32.1 {Tcl_Read, channel not readable} {
    list [catch {read stdout} msg] $msg
} {1 {channel "stdout" wasn't opened for reading}}
test io-32.2 {Tcl_Read, zero byte count} {

    close $f
    set x
} {zzy abzzy}
test io-40.2 {POSIX open access modes: CREAT} {unix} {
    file delete $path(test3)
    set f [open $path(test3) {WRONLY CREAT} 0o600]
    file stat $path(test3) stats
    set x [format "%#o" [expr {$stats(mode)&0o777}]]
    puts $f "line 1"
    close $f
    set f [open $path(test3) r]
    lappend x [gets $f]
    close $f
    set x
} {0o600 {line 1}}
test io-40.3 {POSIX open access modes: CREAT} {unix umask} {
    # This test only works if your umask is 2, like ouster's.
    file delete $path(test3)
    set f [open $path(test3) {WRONLY CREAT}]
    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

} {0 0 ok}
test io-52.6 {TclCopyChannel} {fcopy} {
    file delete $path(test1)
    set f1 [open $thisScript]
    set f2 [open $path(test1) w]
    fconfigure $f1 -translation lf -blocking 0
    fconfigure $f2 -translation lf -blocking 0
    set s0 [fcopy $f1 $f2 -size [expr {[file size $thisScript] + 5}]]
    set result [list [fconfigure $f1 -blocking] [fconfigure $f2 -blocking]]
    close $f1
    close $f2
    set s1 [file size $thisScript]
    set s2 [file size $path(test1)]
    if {("$s1" == "$s2") && ($s0 == $s1)} {
        lappend result ok

    variable fcopyTestDone
    if {![info exists fcopyTestDone]} {
	vwait [namespace which -variable fcopyTestDone]
    }
    catch {close $in}
    close $out
    # -1=error 0=script error N=number of bytes
    expr {($fcopyTestDone == 0) ? $fcopyTestCount : -1}
} {3450}
test io-53.8 {CopyData: async callback and error handling, Bug 1932639} -setup {
    # copy progress callback. errors out intentionally
    proc ::cmd args {
	lappend ::RES "CMD $args"
	error !STOP
    }