path: root/tests/zlib.test

# The file tests the tclZlib.c file.
#
# 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) 1996-1998 by 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.

if {"::tcltest" ni [namespace children]} {
    package require tcltest 2.1
    namespace import -force ::tcltest::*
}

testConstraint zlib [llength [info commands zlib]]
testConstraint recentZlib 0
catch {
    # Work around a bug in some versions of zlib; known to manifest on at
    # least Mac OS X Mountain Lion...
    testConstraint recentZlib \
	    [package vsatisfies [zlib::pkgconfig get zlibVersion] 1.2.6]
}

test zlib-1.1 {zlib basics} -constraints zlib -returnCodes error -body {
    zlib
} -result {wrong # args: should be "zlib command arg ?...?"}
test zlib-1.2 {zlib basics} -constraints zlib -returnCodes error -body {
    zlib ? {}
} -result {bad command "?": must be adler32, compress, crc32, decompress, deflate, gunzip, gzip, inflate, push, or stream}
test zlib-1.3 {zlib basics} -constraints zlib -body {
    zlib::pkgconfig list
} -result zlibVersion
test zlib-1.4 {zlib basics} -constraints zlib -body {
    package present zlib
} -result 2.0.1

test zlib-2.1 {zlib compress/decompress} zlib {
    zlib decompress [zlib compress abcdefghijklm]
} abcdefghijklm

test zlib-3.1 {zlib deflate/inflate} zlib {
    zlib inflate [zlib deflate abcdefghijklm]
} abcdefghijklm

test zlib-4.1 {zlib gzip/gunzip} zlib {
    zlib gunzip [zlib gzip abcdefghijklm]
} abcdefghijklm
test zlib-4.2 {zlib gzip/gunzip} zlib {
    set s [string repeat abcdef 5]
    list [zlib gunzip [zlib gzip $s -header {comment gorp}] -header head] \
	[dict get $head comment] [dict get $head size]
} {abcdefabcdefabcdefabcdefabcdef gorp 30}

test zlib-5.1 {zlib adler32} zlib {
    format %x [expr {[zlib adler32 abcdeabcdeabcdeabcdeabcdeabcde] & 0xffffffff}]
} b3b50b9b
test zlib-5.2 {zlib adler32} zlib {
    format %x [expr {[zlib adler32 abcdeabcdeabcdeabcdeabcdeabcde 42] & 0xffffffff}]
} b8830bc4
test zlib-5.3 {zlib adler32} -constraints zlib -returnCodes error -body {
    zlib adler32 abcdeabcdeabcdeabcdeabcdeabcde 42 x
} -result {wrong # args: should be "zlib adler32 data ?startValue?"}

test zlib-6.1 {zlib crc32} zlib {
    format %x [expr {[zlib crc32 abcdeabcdeabcdeabcdeabcdeabcde] & 0xffffffff}]
} 6f73e901
test zlib-6.2 {zlib crc32} zlib {
    format %x [expr {[zlib crc32 abcdeabcdeabcdeabcdeabcdeabcde 42] & 0xffffffff}]
} ce1c4914
test zlib-6.3 {zlib crc32} -constraints zlib -returnCodes error -body {
    zlib crc32 abcdeabcdeabcdeabcdeabcdeabcde 42 x
} -result {wrong # args: should be "zlib crc32 data ?startValue?"}
test zlib-6.4 {zlib crc32: bug 2662434} -constraints zlib -body {
    zlib crc32 "dabale arroz a la zorra el abad"
} -result 3842832571

test zlib-7.0 {zlib stream} -constraints zlib -returnCodes error -setup {
    set s [zlib stream compress]
} -body {
    $s ?
} -cleanup {
    $s close
} -result {bad option "?": must be add, checksum, close, eof, finalize, flush, fullflush, get, header, put, or reset}
test zlib-7.1 {zlib stream} zlib {
    set s [zlib stream compress]
    $s put -finalize abcdeEDCBA
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result [zlib decompress $data]
} {{} 136f033f abcdeEDCBA}
test zlib-7.2 {zlib stream} zlib {
    set s [zlib stream decompress]
    $s put -finalize [zlib compress abcdeEDCBA]
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result $data
} {{} 136f033f abcdeEDCBA}
test zlib-7.3 {zlib stream} zlib {
    set s [zlib stream deflate]
    $s put -finalize abcdeEDCBA
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result [zlib inflate $data]
} {{} 1 abcdeEDCBA}
test zlib-7.4 {zlib stream} zlib {
    set s [zlib stream inflate]
    $s put -finalize [zlib deflate abcdeEDCBA]
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result $data
} {{} 1 abcdeEDCBA}
test zlib-7.5 {zlib stream} zlib {
    set s [zlib stream gzip]
    $s put -finalize abcdeEDCBA..
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result [zlib gunzip $data]
} {{} 69f34b6a abcdeEDCBA..}
test zlib-7.6 {zlib stream} zlib {
    set s [zlib stream gunzip]
    $s put -finalize [zlib gzip abcdeEDCBA..]
    set data [$s get]
    set result [list [$s get] [format %x [$s checksum]]]
    $s close
    lappend result $data
} {{} 69f34b6a abcdeEDCBA..}
test zlib-7.7 {zlib stream: Bug 25842c161} -constraints zlib -body {
    set s [zlib stream deflate]
    $s put {}
} -cleanup {
    catch {$s close}
} -result ""
# Also causes Tk Bug 10f2e7872b
test zlib-7.8 {zlib stream: Bug b26e38a3e4} -constraints zlib -setup {
    expr srand(12345)
    set randdata {}
    for {set i 0} {$i<6001} {incr i} {
	append randdata [binary format c [expr {int(256*rand())}]]
    }
} -body {
    set strm [zlib stream compress]
    for {set i 1} {$i<3000} {incr i} {
	$strm put $randdata
    }
    $strm put -finalize $randdata
    set data [$strm get]
    list [string length $data] [string length [zlib decompress $data]]
} -cleanup {
    catch {$strm close}
    unset -nocomplain randdata data
} -result {120185 18003000}
test zlib-7.9 {zlib stream finalize (bug 25842c161)} -constraints zlib -setup {
    set z1 [zlib stream gzip]
    set z2 [zlib stream gzip]
} -body {
    $z1 put ABCDEedbca..
    $z1 finalize
    $z2 put -finalize ABCDEedbca..
    expr {[$z1 get] eq [$z2 get]}
} -cleanup {
    $z1 close
    $z2 close
} -result 1
test zlib-7.9.1 {zlib stream put -finalize (bug 25842c161)} -constraints zlib -setup {
    set c [zlib stream gzip]
    set d [zlib stream gunzip]
} -body {
    $c put abcdeEDCBA..
    $c finalize
    $d put [$c get]
    $d finalize
    $d get
} -cleanup {
    $c close
    $d close
} -result abcdeEDCBA..
test zlib-7.9.2 {zlib stream put; zlib stream finalize (bug 25842c161)} -constraints zlib -setup {
    set c [zlib stream gzip]
    set d [zlib stream gunzip]
} -body {
    $c put -finalize abcdeEDCBA..
    $d put -finalize [$c get]
    $d get
} -cleanup {
    $c close
    $d close
} -result abcdeEDCBA..

test zlib-8.1 {zlib transformation} -constraints zlib -setup {
    set file [makeFile {} test.gz]
} -body {
    set f [zlib push gzip [open $file w] -header {comment gorp}]
    puts $f "ok"
    close $f
    set f [zlib push gunzip [open $file]]
    list [gets $f] [dict get [chan configure $f -header] comment]
} -cleanup {
    close $f
    removeFile $file
} -result {ok gorp}
test zlib-8.2 {zlib transformation} -constraints zlib -setup {
    set file [makeFile {} test.z]
} -body {
    set f [zlib push compress [open $file w]]
    puts $f "ok"
    close $f
    set f [zlib push decompress [open $file]]
    gets $f
} -cleanup {
    close $f
    removeFile $file
} -result ok
test zlib-8.3 {zlib transformation and fileevent} -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        fconfigure $c -translation binary -buffering none -blocking 0
        puts -nonewline $c [zlib gzip [string repeat a 81920]]
        close $c
    }}} 0]
    set port [lindex [fconfigure $srv -sockname] 2]
    set file [makeFile {} test.gz]
    set fout [open $file wb]
} -body {
    set sin [socket localhost $port]
    try {
	fconfigure $sin -translation binary
	zlib push gunzip $sin
	after 1000 {set total timeout}
	fcopy $sin $fout -command {apply {{c {e {}}} {
	    set ::total [expr {$e eq {} ? $c : $e}]
	}}}
	vwait total
	after cancel {set total timeout}
    } finally {
	close $sin
    }
    append total --> [file size $file]
} -cleanup {
    close $fout
    close $srv
    removeFile $file
} -result 81920-->81920
test zlib-8.4 {transformation and flushing: Bug 3517696} -setup {
    set file [makeFile {} test.z]
    set fd [open $file w]
} -constraints zlib -body {
    zlib push compress $fd
    puts $fd "qwertyuiop"
    fconfigure $fd -flush sync
    puts $fd "qwertyuiop"
} -cleanup {
    catch {close $fd}
    removeFile $file
} -result {}
test zlib-8.5 {transformation and flushing and fileevents: Bug 3525907} -setup {
    foreach {r w} [chan pipe] break
} -constraints zlib -body {
    set ::res {}
    fconfigure $w -buffering none
    zlib push compress $w
    puts -nonewline $w qwertyuiop
    chan configure $w -flush sync
    after 500 {puts -nonewline $w asdfghjkl;close $w}
    fconfigure $r -blocking 0 -buffering none
    zlib push decompress $r
    fileevent $r readable {set msg [read $r];lappend ::res $msg;if {[eof $r]} {set ::done 1}}
    after 250 {lappend ::res MIDDLE}
    vwait ::done
    set ::res
} -cleanup {
    catch {close $r}
} -result {qwertyuiop MIDDLE asdfghjkl {}}
test zlib-8.6 {transformation and fconfigure} -setup {
    set file [makeFile {} test.z]
    set fd [open $file wb]
} -constraints zlib -body {
    list [fconfigure $fd] [zlib push compress $fd; fconfigure $fd] \
	[chan pop $fd; fconfigure $fd]
} -cleanup {
    catch {close $fd}
    removeFile $file
} -result {{-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf -checksum 1 -dictionary {}} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf}}
test zlib-8.7 {transformation and fconfigure} -setup {
    set file [makeFile {} test.gz]
    set fd [open $file wb]
} -constraints zlib -body {
    list [fconfigure $fd] [zlib push gzip $fd; fconfigure $fd] \
	[chan pop $fd; fconfigure $fd]
} -cleanup {
    catch {close $fd}
    removeFile $file
} -result {{-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf -checksum 0} {-blocking 1 -buffering full -buffersize 4096 -encoding binary -eofchar {} -translation lf}}
# Input is headers from fetching SPDY draft
# Dictionary is that which is proposed _in_ SPDY draft
set spdyHeaders "HTTP/1.0 200 OK\r\nContent-Type: text/html; charset=utf-8\r\nX-Robots-Tag: noarchive\r\nLast-Modified: Tue, 05 Jun 2012 02:43:25 GMT\r\nETag: \"1338864205129|#public|0|en|||0\"\r\nExpires: Tue, 05 Jun 2012 16:17:11 GMT\r\nDate: Tue, 05 Jun 2012 16:17:06 GMT\r\nCache-Control: public, max-age=5\r\nX-Content-Type-Options: nosniff\r\nX-XSS-Protection: 1; mode=block\r\nServer: GSE\r\n"
set spdyDict "optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchif-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser-agent100101200201202203204205206300301302303304305306307400401402403404405406407408409410411412413414415416417500501502503504505accept-rangesageetaglocationproxy-authenticatepublicretry-afterservervarywarningwww-authenticateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertransfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locationcontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMondayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSepOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplication/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1.1statusversionurl"
test zlib-8.8 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
} -constraints zlib -body {
    zlib push compress $outSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -translation binary -buffering none
    fconfigure $inSide -blocking 1 -translation binary
    puts -nonewline $outSide $spdyHeaders
    chan pop $outSide
    chan close $outSide
    set compressed [read $inSide]
    catch {zlib decompress $compressed} err opt
    list [string length [zlib compress $spdyHeaders]] \
	[string length $compressed] \
	$err [dict get $opt -errorcode] [zlib adler32 $spdyDict]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
} -result {260 222 {need dictionary} {TCL ZLIB NEED_DICT 2381337010} 2381337010}
test zlib-8.9 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream decompress]
} -constraints zlib -body {
    zlib push compress $outSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -translation binary -buffering none
    fconfigure $inSide -blocking 1 -translation binary
    puts -nonewline $outSide $spdyHeaders
    set result [fconfigure $outSide -checksum]
    chan pop $outSide
    chan close $outSide
    $strm put -dictionary $spdyDict [read $inSide]
    lappend result [string length $spdyHeaders] [string length [$strm get]]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {3064818174 358 358}
test zlib-8.10 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
} -constraints {zlib recentZlib} -body {
    zlib push deflate $outSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -translation binary -buffering none
    fconfigure $inSide -blocking 1 -translation binary
    puts -nonewline $outSide $spdyHeaders
    chan pop $outSide
    chan close $outSide
    set compressed [read $inSide]
    catch {
	zlib inflate $compressed
	throw UNREACHABLE "should be unreachable"
    } err opt
    list [string length [zlib deflate $spdyHeaders]] \
	[string length $compressed] \
	$err [dict get $opt -errorcode]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
} -result {254 212 {data error} {TCL ZLIB DATA}}
test zlib-8.11 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream inflate]
} -constraints zlib -body {
    zlib push deflate $outSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -translation binary -buffering none
    fconfigure $inSide -blocking 1 -translation binary
    puts -nonewline $outSide $spdyHeaders
    chan pop $outSide
    chan close $outSide
    $strm put -dictionary $spdyDict [read $inSide]
    list [string length $spdyHeaders] [string length [$strm get]]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {358 358}
test zlib-8.12 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream compress]
} -constraints zlib -body {
    $strm put -dictionary $spdyDict -finalize $spdyHeaders
    zlib push decompress $inSide
    fconfigure $outSide -blocking 0 -translation binary
    fconfigure $inSide -translation binary -dictionary $spdyDict
    puts -nonewline $outSide [$strm get]
    close $outSide
    list [string length $spdyHeaders] [string length [read $inSide]] \
	[fconfigure $inSide -checksum]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {358 358 3064818174}
test zlib-8.13 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream compress]
} -constraints zlib -body {
    $strm put -dictionary $spdyDict -finalize $spdyHeaders
    zlib push decompress $inSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -translation binary
    fconfigure $inSide -translation binary
    puts -nonewline $outSide [$strm get]
    close $outSide
    list [string length $spdyHeaders] [string length [read $inSide]] \
	[fconfigure $inSide -checksum]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {358 358 3064818174}
test zlib-8.14 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream deflate]
} -constraints zlib -body {
    $strm put -finalize -dictionary $spdyDict $spdyHeaders
    zlib push inflate $inSide
    fconfigure $outSide -blocking 0 -buffering none -translation binary
    fconfigure $inSide -translation binary -dictionary $spdyDict
    puts -nonewline $outSide [$strm get]
    close $outSide
    list [string length $spdyHeaders] [string length [read $inSide]]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {358 358}
test zlib-8.15 {transformation and fconfigure} -setup {
    lassign [chan pipe] inSide outSide
    set strm [zlib stream deflate]
} -constraints zlib -body {
    $strm put -finalize -dictionary $spdyDict $spdyHeaders
    zlib push inflate $inSide -dictionary $spdyDict
    fconfigure $outSide -blocking 0 -buffering none -translation binary
    fconfigure $inSide -translation binary
    puts -nonewline $outSide [$strm get]
    close $outSide
    list [string length $spdyHeaders] [string length [read $inSide]]
} -cleanup {
    catch {close $outSide}
    catch {close $inSide}
    catch {$strm close}
} -result {358 358}
test zlib-8.16 {Bug 3603553: buffer transfer with large writes} -setup {
    # Actual data isn't very important; needs to be substantially larger than
    # the internal buffer (32kB) and incompressible.
    set largeData {}
    for {set i 0;expr srand(1)} {$i < 100000} {incr i} {
	append largeData [lindex "a b c d e f g h i j k l m n o p" \
		[expr {int(16*rand())}]]
    }
    set file [makeFile {} test.gz]
} -constraints zlib -body {
    set f [open $file wb]
    fconfigure $f -buffering none
    zlib push gzip $f
    puts -nonewline $f $largeData
    close $f
    file size $file
} -cleanup {
    removeFile $file
} -result 57647
test zlib-8.17 {Bug dd260aaf: fconfigure} -setup {
    lassign [chan pipe] inSide outSide
} -constraints zlib -body {
    zlib push inflate $inSide
    zlib push deflate $outSide
    list [chan configure $inSide -dictionary] [chan configure $outSide -dictionary]
} -cleanup {
    catch {close $inSide}
    catch {close $outSide}
} -result {{} {}}
test zlib-8.18 {Bug dd260aaf: fconfigure} -setup {
    lassign [chan pipe] inSide outSide
} -constraints zlib -body {
    zlib push inflate $inSide -dictionary "one two"
    zlib push deflate $outSide -dictionary "one two"
    list [chan configure $inSide -dictionary] [chan configure $outSide -dictionary]
} -cleanup {
    catch {close $inSide}
    catch {close $outSide}
} -result {{one two} {one two}}

test zlib-9.1 "check fcopy with push" -constraints zlib -setup {
    set sfile [makeFile {} testsrc.gz]
    set file [makeFile {} test.gz]
    set f [open $sfile wb]
    puts -nonewline $f [zlib gzip [string repeat a 81920]]
    close $f
} -body {
    set fin [zlib push gunzip [open $sfile rb]]
    set fout [open $file wb]
    set total [fcopy $fin $fout]
    close $fin ; close $fout
    list copied $total size [file size $file]
} -cleanup {
    removeFile $file
    removeFile $sfile
} -result {copied 81920 size 81920}
test zlib-9.2 "socket fcopy with push" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        puts -nonewline $c [zlib gzip [string repeat a 81920]]
        close $c
    }}} 0]
    set file [makeFile {} test.gz]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    set sin [socket $addr $port]
    chan configure $sin -translation binary
    zlib push gunzip $sin
    update
    set total [fcopy $sin [set fout [open $file wb]]]
    close $sin
    close $fout
    list read $total size [file size $file]
} -cleanup {
    close $srv
    removeFile $file
} -result {read 81920 size 81920}
test zlib-9.3 "socket fcopy bg (identity)" -constraints {tempNotWin zlib} -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        #puts "connection from $a:$p on $c"
        chan configure $c -translation binary -buffering none -blocking 0
        puts -nonewline $c [string repeat a 81920]
        close $c
    }}} 0]
    set file [makeFile {} test.gz]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    #puts "listening for connections on $addr $port"
    set sin [socket localhost $port]
    chan configure $sin -translation binary
    update
    set fout [open $file wb]
    after 1000 {set ::total timeout}
    fcopy $sin $fout -command {apply {{c {e {}}} {
        set ::total [expr {$e eq {} ? $c : $e}]
    }}}
    vwait ::total
    after cancel {set ::total timeout}
    close $sin; close $fout
    list read $::total size [file size $file]
} -cleanup {
    close $srv
    removeFile $file
} -returnCodes {ok error} -result {read 81920 size 81920}
test zlib-9.4 "socket fcopy bg (gzip)" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        puts -nonewline $c [zlib gzip [string repeat a 81920]]
        close $c
    }}} 0]
    set file [makeFile {} test.gz]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    set sin [socket $addr $port]
    chan configure $sin -translation binary
    zlib push gunzip $sin
    update
    set fout [open $file wb]
    after 1000 {set ::total timeout}
    fcopy $sin $fout -command {apply {{c {e {}}} {
        set ::total [expr {$e eq {} ? $c : $e}]
    }}}
    vwait ::total
    after cancel {set ::total timeout}
    close $sin; close $fout
    list read $::total size [file size $file]
} -cleanup {
    close $srv
    removeFile $file
} -result {read 81920 size 81920}
test zlib-9.5 "socket fcopy incremental (gzip)" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        puts -nonewline $c [zlib gzip [string repeat a 81920]]
        close $c
    }}} 0]
    proc zlib95copy {i o t c {e {}}} {
        incr t $c
        if {$e ne {}} {
            set ::total [list error $e]
        } elseif {[eof $i]} {
            set ::total [list eof $t]
        } else {
            fcopy $i $o -size 8192 -command [list zlib95copy $i $o $t]
        }
    }
    set file [makeFile {} test.gz]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    set sin [socket $addr $port]
    chan configure $sin -translation binary
    zlib push gunzip $sin
    update
    set fout [open $file wb]
    after 1000 {set ::total timeout}
    fcopy $sin $fout -size 8192 -command [list zlib95copy $sin $fout 0]
    vwait ::total
    after cancel {set ::total timeout}
    close $sin; close $fout
    list $::total size [file size $file]
} -cleanup {
    close $srv
    rename zlib95copy {}
    removeFile $file
} -result {{eof 81920} size 81920}
test zlib-9.6 "bug #2818131 (gzip)" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push gzip $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary
    zlib push gunzip $s
    chan event $s readable [list apply {{s} {
        set d [read $s]
        if {[eof $s]} {
            chan event $s readable {}
            set ::total [list eof [string length $d]]
        }
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    close $s
    set ::total
} -cleanup {
    close $srv
    unset -nocomplain total
} -result {eof 500}
test zlib-9.7 "bug #2818131 (compress)" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push compress $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary
    zlib push decompress $s
    chan event $s readable [list apply {{s} {
        set d [read $s]
        if {[eof $s]} {
            chan event $s readable {}
            set ::total [list eof [string length $d]]
        }
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    close $s
    set ::total
} -cleanup {
    close $srv
    unset -nocomplain total
} -result {eof 500}
test zlib-9.8 "bug #2818131 (deflate)" -constraints zlib -setup {
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push deflate $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary
    zlib push inflate $s
    chan event $s readable [list apply {{s} {
        set d [read $s]
        if {[eof $s]} {
            chan event $s readable {}
            set ::total [list eof [string length $d]]
        }
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    close $s
    set ::total
} -cleanup {
    unset -nocomplain total
    close $srv
} -result {eof 500}
test zlib-9.9 "bug #2818131 (gzip mismatch)" -constraints zlib -setup {
    proc bgerror {s} {set ::total [list error $s]}
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push gzip $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    try {
        chan configure $s -translation binary
        zlib push inflate $s
        chan event $s readable [list apply {{s} {
            set d [read $s]
            if {[eof $s]} {
                chan event $s readable {}
                set ::total [list eof [string length $d]]
            }
        }} $s]
        vwait ::total
    } finally {
	after cancel {set ::total timeout}
        close $s
    }
    set ::total
} -cleanup {
    unset -nocomplain total
    close $srv
    rename bgerror {}
} -result {error {invalid block type}}
test zlib-9.10 "bug #2818131 (compress mismatch)" -constraints zlib -setup {
    proc bgerror {s} {set ::total [list error $s]}
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push compress $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    try {
        chan configure $s -translation binary
        zlib push inflate $s
        chan event $s readable [list apply {{s} {
            set d [read $s]
            if {[eof $s]} {
                chan event $s readable {}
                set ::total [list eof [string length $d]]
            }
        }} $s]
        vwait ::total
    } finally {
	after cancel {set ::total timeout}
        close $s
    }
    set ::total
} -cleanup {
    unset -nocomplain total
    close $srv
    rename bgerror {}
} -result {error {invalid stored block lengths}}
test zlib-9.11 "bug #2818131 (deflate mismatch)" -constraints zlib -setup {
    proc bgerror {s} {set ::total [list error $s]}
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary -buffering none -blocking 0
        zlib push deflate $c
        puts -nonewline $c [string repeat hello 100]
        close $c
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    try {
        chan configure $s -translation binary
        zlib push gunzip $s
        chan event $s readable [list apply {{s} {
            set d [read $s]
            if {[eof $s]} {
                chan event $s readable {}
                set ::total [list eof [string length $d]]
            }
        }} $s]
        vwait ::total
    } finally {
	after cancel {set ::total timeout}
        close $s
    }
    set ::total
} -cleanup {
    unset -nocomplain total
    close $srv
    rename bgerror {}
} -result {error {incorrect header check}}

test zlib-10.0 "bug #2818131 (close with null interp)" -constraints {
    zlib
} -setup {
    proc bgerror {s} {set ::total [list error $s]}
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary
        zlib push inflate $c
        chan event $c readable [list apply {{c} {
            set d [read $c]
            if {[eof $c]} {
                chan event $c readable {}
                close $c
                set ::total [list eof [string length $d]]
            }
        }} $c]
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary -buffering none -blocking 0
    zlib push gzip $s
    chan event $s xyzzy [list apply {{s} {
        if {[gets $s line] < 0} {
            chan close $s
        }
    }} $s]
    after idle [list apply {{s} {
        puts $s test
        chan close $s
        after 100 {set ::total done}
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    after cancel {set ::total done}
    set ::total
} -cleanup {
    close $srv
    rename bgerror {}
} -returnCodes error \
  -result {bad event name "xyzzy": must be readable or writable}
test zlib-10.1 "bug #2818131 (mismatch read)" -constraints {
    zlib
} -setup {
    proc bgerror {s} {set ::total [list error $s]}
    proc zlibRead {c} {
        set d [read $c]
        if {[eof $c]} {
            chan event $c readable {}
            close $c
            set ::total [list eof [string length $d]]
        }
    }
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary
        zlib push inflate $c
        chan event $c readable [list zlibRead $c]
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary -buffering none -blocking 0
    zlib push gzip $s
    chan event $s readable [list zlibRead $s]
    after idle [list apply {{s} {
        puts $s test
        chan close $s
        after 100 {set ::total done}
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    after cancel {set ::total done}
    set ::total
} -cleanup {
    close $srv
    rename bgerror {}
    rename zlibRead {}
} -result {error {invalid block type}}
test zlib-10.2 "bug #2818131 (mismatch gets)" -constraints {
    zlib
} -setup {
    proc bgerror {s} {set ::total [list error $s]}
    proc zlibRead {c} {
        if {[gets $c line] < 0} {
            close $c
            set ::total [list error -1]
        } elseif {[eof $c]} {
            chan event $c readable {}
            close $c
            set ::total [list eof 0]
        }
    }
    set srv [socket -myaddr localhost -server {apply {{c a p} {
        chan configure $c -translation binary
        zlib push inflate $c
        chan event $c readable [list zlibRead $c]
    }}} 0]
} -body {
    lassign [chan configure $srv -sockname] addr name port
    after 1000 {set ::total timeout}
    set s [socket $addr $port]
    chan configure $s -translation binary -buffering none -blocking 0
    zlib push gzip $s
    chan event $s readable [list zlibRead $s]
    after idle [list apply {{s} {
        puts $s test
        chan close $s
        after 100 {set ::total done}
    }} $s]
    vwait ::total
    after cancel {set ::total timeout}
    after cancel {set ::total done}
    set ::total
} -cleanup {
    close $srv
    rename bgerror {}
    rename zlibRead {}
} -result {error {invalid block type}}

test zlib-11.1 "Bug #3390073: mis-appled gzip filtering" -setup {
    set file [makeFile {} test.input]
} -constraints zlib -body {
    set f [open $file wb]
    puts -nonewline [zlib push gzip $f] [string repeat "hello" 1000]
    close $f
    set f [open $file rb]
    set d [read $f]
    close $f
    set d [zlib gunzip $d]
    list [regexp -all "hello" $d] [string length [regsub -all "hello" $d {}]]
} -cleanup {
    removeFile $file
} -result {1000 0}
test zlib-11.2 "Bug #3390073: mis-appled gzip filtering" -setup {
    set file [makeFile {} test.input]
} -constraints zlib -body {
    set f [open $file wb]
    puts -nonewline [zlib push gzip $f -header {filename /foo/bar}] \
	[string repeat "hello" 1000]
    close $f
    set f [open $file rb]
    set d [read $f]
    close $f
    set d [zlib gunzip $d -header h]
    list [regexp -all "hello" $d] [dict get $h filename] \
	[string length [regsub -all "hello" $d {}]]
} -cleanup {
    removeFile $file
} -result {1000 /foo/bar 0}
test zlib-11.3 {Bug 3595576 variant} -setup {
    set file [makeFile {} test.input]
} -constraints zlib -body {
    set f [open $file wb]
    puts -nonewline [zlib push gzip $f -header {filename /foo/bar}] \
	[string repeat "hello" 1000]
    close $f
    set f [open $file rb]
    set d [read $f]
    close $f
    zlib gunzip $d -header noSuchNs::foo
} -cleanup {
    removeFile $file
} -returnCodes error -result {can't set "noSuchNs::foo": parent namespace doesn't exist}

test zlib-12.1 {Tk Bug 9eb55debc5} -constraints zlib -setup {
    set stream [zlib stream compress]
} -body {
    for {set opts {};set y 0} {$y < 60} {incr y} {
	for {set line {};set x 0} {$x < 100} {incr x} {
	    append line [binary format ccc $x $y 128]
	}
	if {$y == 59} {
	    set opts -finalize
	}
	$stream put {*}$opts $line
    }
    set data [$stream get]
    list [string length $data] [string length [zlib decompress $data]]
} -cleanup {
    $stream close
} -result {12026 18000}
test zlib-12.2 {Patrick Dunnigan's issue} -constraints zlib -setup {
    set filesrc [makeFile {} test.input]
    set filedst [makeFile {} test.output]
    set f [open $filesrc "wb"]
    for {set i 0} {$i < 10000} {incr i} {
	puts -nonewline $f "x"
    }
    close $f
} -body {
    set fin [open $filesrc "rb"]
    set fout [open $filedst "wb"]
    set header [dict create filename "test.input" time 0]
    try {
	fcopy $fin [zlib push gzip $fout -header $header]
    } finally {
	close $fin
	close $fout
    }
    file size $filedst
} -cleanup {
    removeFile $filesrc
    removeFile $filedst
} -result 4152

::tcltest::cleanupTests
return

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# mode: tcl
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