# This file contains a collection of tests for tclEncoding.c
# Sourcing this file into Tcl runs the tests and generates output for errors.
# No output means no errors were found.
#
# Copyright © 1997 Sun Microsystems, Inc.
# Copyright © 1998-1999 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 2.5
    namespace import -force ::tcltest::*
}


namespace eval ::tcl::test::encoding {
    variable x

catch {
    ::tcltest::loadTestedCommands
    package require -exact tcl::test [info patchlevel]
}

proc toutf {args} {
    variable x
    lappend x "toutf $args"
}
proc fromutf {args} {
    variable x
    lappend x "fromutf $args"
}

proc runtests {} {
    variable x

# Some tests require the testencoding command
testConstraint testencoding [llength [info commands testencoding]]
testConstraint testbytestring [llength [info commands testbytestring]]
testConstraint teststringbytes [llength [info commands teststringbytes]]
testConstraint exec [llength [info commands exec]]
testConstraint testgetencpath [llength [info commands testgetencpath]]

# TclInitEncodingSubsystem is tested by the rest of this file
# TclFinalizeEncodingSubsystem is not currently tested

test encoding-1.1 {Tcl_GetEncoding: system encoding} -setup {
    set old [encoding system]
} -constraints {testencoding} -body {
    testencoding create foo [namespace origin toutf] [namespace origin fromutf]
    encoding system foo
    set x {}
    encoding convertto abcd
    return $x
} -cleanup {
    encoding system $old
    testencoding delete foo
} -result {{fromutf }}
test encoding-1.2 {Tcl_GetEncoding: existing encoding} {testencoding} {
    testencoding create foo [namespace origin toutf] [namespace origin fromutf]
    set x {}
    encoding convertto foo abcd
    testencoding delete foo
    return $x
} {{fromutf }}
test encoding-1.3 {Tcl_GetEncoding: load encoding} {
    list [encoding convertto jis0208 乎] \
	[encoding convertfrom jis0208 8C]
} "8C 乎"

test encoding-2.1 {Tcl_FreeEncoding: refcount == 0} {
    encoding convertto jis0208 乎
} {8C}
test encoding-2.2 {Tcl_FreeEncoding: refcount != 0} -setup {
    set system [encoding system]
    set path [encoding dirs]
} -constraints {testencoding} -body {
    encoding system shiftjis		;# incr ref count
    encoding dirs [list [pwd]]
    set x [encoding convertto shiftjis 乎]	;# old one found
    encoding system iso8859-1
    llength shiftjis		;# Shimmer away any cache of Tcl_Encoding
    lappend x [catch {encoding convertto shiftjis 乎} msg] $msg
} -cleanup {
    encoding system iso8859-1
    encoding dirs $path
    encoding system $system
} -result "\x8C\xC1 1 {unknown encoding \"shiftjis\"}"

test encoding-3.1 {Tcl_GetEncodingName, NULL} -setup {
    set old [encoding system]
} -body {
    encoding system shiftjis
    encoding system
} -cleanup {
    encoding system $old
} -result {shiftjis}
test encoding-3.2 {Tcl_GetEncodingName, non-null} -setup {
    set old [fconfigure stdout -encoding]
} -body {
    fconfigure stdout -encoding jis0208
    fconfigure stdout -encoding
} -cleanup {
    fconfigure stdout -encoding $old
} -result {jis0208}

test encoding-4.1 {Tcl_GetEncodingNames} -constraints {testencoding} -setup {
    cd [makeDirectory tmp]
    makeDirectory [file join tmp encoding]
    set path [encoding dirs]
    encoding dirs {}
    catch {unset encodings}
    catch {unset x}
} -body {
    foreach encoding [encoding names] {
	set encodings($encoding) 1
    }
    makeFile {} [file join tmp encoding junk.enc]
    makeFile {} [file join tmp encoding junk2.enc]
    encoding dirs [list [file join [pwd] encoding]]
    foreach encoding [encoding names] {
	if {![info exists encodings($encoding)]} {
	    lappend x $encoding
	}
    }
    lsort $x
} -cleanup {
    encoding dirs $path
    cd [workingDirectory]
    removeFile [file join tmp encoding junk2.enc]
    removeFile [file join tmp encoding junk.enc]
    removeDirectory [file join tmp encoding]
    removeDirectory tmp
} -result {junk junk2}

test encoding-5.1 {Tcl_SetSystemEncoding} -setup {
    set old [encoding system]
} -body {
    encoding system jis0208
    encoding convertto 乎
} -cleanup {
    encoding system iso8859-1
    encoding system $old
} -result {8C}
test encoding-5.2 {Tcl_SetSystemEncoding: test ref count} {
    set old [encoding system]
    encoding system $old
    string compare $old [encoding system]
} {0}

test encoding-6.1 {Tcl_CreateEncoding: new} {testencoding} {
    testencoding create foo [namespace code {toutf 1}] \
	[namespace code {fromutf 2}]
    set x {}
    encoding convertfrom foo abcd
    encoding convertto foo abcd
    testencoding delete foo
    return $x
} {{toutf 1} {fromutf 2}}
test encoding-6.2 {Tcl_CreateEncoding: replace encoding} {testencoding} {
    testencoding create foo [namespace code {toutf a}] \
	[namespace code {fromutf b}]
    set x {}
    encoding convertfrom foo abcd
    encoding convertto foo abcd
    testencoding delete foo
    return $x
} {{toutf a} {fromutf b}}

test encoding-7.1 {Tcl_ExternalToUtfDString: small buffer} {
    encoding convertfrom jis0208 8c8c8c8c
} "吾吾吾吾"
test encoding-7.2 {Tcl_UtfToExternalDString: big buffer} {
    set a 8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C8C
    append a $a
    append a $a
    append a $a
    append a $a
    set x [encoding convertfrom jis0208 $a]
    list [string length $x] [string index $x 0]
} "512 乎"

test encoding-8.1 {Tcl_ExternalToUtf} {
    set f [open [file join [temporaryDirectory] dummy] w]
    fconfigure $f -translation binary -encoding iso8859-1
    puts -nonewline $f "ab\x8C\xC1g"
    close $f
    set f [open [file join [temporaryDirectory] dummy] r]
    fconfigure $f -translation binary -encoding shiftjis
    set x [read $f]
    close $f
    file delete [file join [temporaryDirectory] dummy]
    return $x
} "ab乎g"

test encoding-9.1 {Tcl_UtfToExternalDString: small buffer} {
    encoding convertto jis0208 "吾吾吾吾"
} {8c8c8c8c}
test encoding-9.2 {Tcl_UtfToExternalDString: big buffer} {
    set a 乎乎乎乎乎乎乎乎
    append a $a
    append a $a
    append a $a
    append a $a
    append a $a
    append a $a
    set x [encoding convertto jis0208 $a]
    list [string length $x] [string range $x 0 1]
} "1024 8C"

test encoding-10.1 {Tcl_UtfToExternal} {
    set f [open [file join [temporaryDirectory] dummy] w]
    fconfigure $f -translation binary -encoding shiftjis
    puts -nonewline $f "ab乎g"
    close $f
    set f [open [file join [temporaryDirectory] dummy] r]
    fconfigure $f -translation binary -encoding iso8859-1
    set x [read $f]
    close $f
    file delete [file join [temporaryDirectory] dummy]
    return $x
} "ab\x8C\xC1g"

proc viewable {str} {
    set res ""
    foreach c [split $str {}] {
	if {[string is print $c] && [string is ascii $c]} {
	    append res $c
	} else {
	    append res "\\u[format %4.4X [scan $c %c]]"
	}
    }
    return "$str ($res)"
}

test encoding-11.1 {LoadEncodingFile: unknown encoding} {testencoding} {
    set system [encoding system]
    set path [encoding dirs]
    encoding system iso8859-1
    encoding dirs {}
    llength jis0208	;# Shimmer any cached Tcl_Encoding in shared literal
    set x [list [catch {encoding convertto jis0208 乎} msg] $msg]
    encoding dirs $path
    encoding system $system
    lappend x [encoding convertto jis0208 乎]
} {1 {unknown encoding "jis0208"} 8C}
test encoding-11.2 {LoadEncodingFile: single-byte} {
    encoding convertfrom jis0201 \xA1
} "｡"
test encoding-11.3 {LoadEncodingFile: double-byte} {
    encoding convertfrom jis0208 8C
} 乎
test encoding-11.4 {LoadEncodingFile: multi-byte} {
    encoding convertfrom shiftjis \x8C\xC1
} 乎
test encoding-11.5 {LoadEncodingFile: escape file} {
    viewable [encoding convertto iso2022 乎]
} [viewable "\x1B\$B8C\x1B(B"]
test encoding-11.5.1 {LoadEncodingFile: escape file} {
    viewable [encoding convertto iso2022-jp 乎]
} [viewable "\x1B\$B8C\x1B(B"]
test encoding-11.6 {LoadEncodingFile: invalid file} -constraints {testencoding} -setup {
    set system [encoding system]
    set path [encoding dirs]
    encoding system iso8859-1
} -body {
    cd [temporaryDirectory]
    encoding dirs [file join tmp encoding]
    makeDirectory tmp
    makeDirectory [file join tmp encoding]
    set f [open [file join tmp encoding splat.enc] w]
    fconfigure $f -translation binary
    puts $f "abcdefghijklmnop"
    close $f
    encoding convertto splat 乎
} -returnCodes error -cleanup {
    file delete [file join [temporaryDirectory] tmp encoding splat.enc]
    removeDirectory [file join tmp encoding]
    removeDirectory tmp
    cd [workingDirectory]
    encoding dirs $path
    encoding system $system
} -result {invalid encoding file "splat"}
test encoding-11.8 {encoding: extended Unicode UTF-16} {
    viewable [encoding convertto utf-16le 😹]
} {=Ø9Þ (=\u00D89\u00DE)}
test encoding-11.9 {encoding: extended Unicode UTF-16} {
    viewable [encoding convertto utf-16be 😹]
} {Ø=Þ9 (\u00D8=\u00DE9)}
test encoding-11.10 {encoding: extended Unicode UTF-32} {
    viewable [encoding convertto utf-32le 😹]
} "9\xF6\x01\x00 (9\\u00F6\\u0001\\u0000)"
test encoding-11.11 {encoding: extended Unicode UTF-32} {
    viewable [encoding convertto utf-32be 😹]
} "\x00\x01\xF69 (\\u0000\\u0001\\u00F69)"
# OpenEncodingFile is fully tested by the rest of the tests in this file.

test encoding-12.1 {LoadTableEncoding: normal encoding} {
    set x [encoding convertto iso8859-3 Ġ]
    append x [encoding convertto iso8859-3 Õ]
    append x [encoding convertfrom iso8859-3 Õ]
} "Õ?Ġ"
test encoding-12.2 {LoadTableEncoding: single-byte encoding} {
    set x [encoding convertto iso8859-3 abĠg]
    append x [encoding convertfrom iso8859-3 abÕg]
} "abÕgabĠg"
test encoding-12.3 {LoadTableEncoding: multi-byte encoding} {
    set x [encoding convertto shiftjis ab乎g]
    append x [encoding convertfrom shiftjis ab\x8C\xC1g]
} "ab\x8C\xC1gab乎g"
test encoding-12.4 {LoadTableEncoding: double-byte encoding} {
    set x [encoding convertto jis0208 乎α]
    append x [encoding convertfrom jis0208 8C&A]
} "8C&A乎α"
test encoding-12.5 {LoadTableEncoding: symbol encoding} {
    set x [encoding convertto symbol γ]
    append x [encoding convertto symbol g]
    append x [encoding convertfrom symbol g]
} "ggγ"

test encoding-13.1 {LoadEscapeTable} {
    viewable [set x [encoding convertto iso2022 ab乎棙g]]
} [viewable "ab\x1B\$B8C\x1B\$\(DD%\x1B(Bg"]

test encoding-15.1 {UtfToUtfProc} {
    encoding convertto utf-8 £
} "\xC2\xA3"
test encoding-15.2 {UtfToUtfProc null character output} testbytestring {
    binary scan [testbytestring [encoding convertto utf-8 \x00]] H* z
    set z
} 00
test encoding-15.3 {UtfToUtfProc null character input} teststringbytes {
    set y [encoding convertfrom utf-8 [encoding convertto utf-8 \x00]]
    binary scan [teststringbytes $y] H* z
    set z
} c080
test encoding-15.4 {UtfToUtfProc emoji character input} -body {
    set x \xED\xA0\xBD\xED\xB8\x82
    set y [encoding convertfrom utf-8 \xED\xA0\xBD\xED\xB8\x82]
    list [string length $x] $y
} -result "6 😂"
test encoding-15.5 {UtfToUtfProc emoji character input} {
    set x \xF0\x9F\x98\x82
    set y [encoding convertfrom utf-8 \xF0\x9F\x98\x82]
    list [string length $x] $y
} "4 😂"
test encoding-15.6 {UtfToUtfProc emoji character output} {
    set x \uDE02\uD83D\uDE02\uD83D
    set y [encoding convertto utf-8 \uDE02\uD83D\uDE02\uD83D]
    binary scan $y H* z
    list [string length $y] $z
} {10 edb882f09f9882eda0bd}
test encoding-15.7 {UtfToUtfProc emoji character output} {
    set x \uDE02\uD83D\uD83D
    set y [encoding convertto utf-8 \uDE02\uD83D\uD83D]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {3 9 edb882eda0bdeda0bd}
test encoding-15.8 {UtfToUtfProc emoji character output} {
    set x \uDE02\uD83Dé
    set y [encoding convertto utf-8 \uDE02\uD83Dé]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {3 8 edb882eda0bdc3a9}
test encoding-15.9 {UtfToUtfProc emoji character output} {
    set x \uDE02\uD83DX
    set y [encoding convertto utf-8 \uDE02\uD83DX]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {3 7 edb882eda0bd58}
test encoding-15.10 {UtfToUtfProc high surrogate character output} {
    set x \uDE02é
    set y [encoding convertto utf-8 \uDE02é]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {2 5 edb882c3a9}
test encoding-15.11 {UtfToUtfProc low surrogate character output} {
    set x \uDA02é
    set y [encoding convertto utf-8 \uDA02é]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {2 5 eda882c3a9}
test encoding-15.12 {UtfToUtfProc high surrogate character output} {
    set x \uDE02Y
    set y [encoding convertto utf-8 \uDE02Y]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {2 4 edb88259}
test encoding-15.13 {UtfToUtfProc low surrogate character output} {
    set x \uDA02Y
    set y [encoding convertto utf-8 \uDA02Y]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {2 4 eda88259}
test encoding-15.14 {UtfToUtfProc high surrogate character output} {
    set x \uDE02
    set y [encoding convertto utf-8 \uDE02]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {1 3 edb882}
test encoding-15.15 {UtfToUtfProc low surrogate character output} {
    set x \uDA02
    set y [encoding convertto utf-8 \uDA02]
    binary scan $y H* z
    list [string length $x] [string length $y] $z
} {1 3 eda882}
test encoding-15.16 {UtfToUtfProc: Invalid 4-byte UTF-8, see [ed29806ba]} {
    set x \xF0\xA0\xA1\xC2
    set y [encoding convertfrom utf-8 \xF0\xA0\xA1\xC2]
    list [string length $x] $y
} "4 \xF0\xA0\xA1\xC2"
test encoding-15.17 {UtfToUtfProc emoji character output} {
    set x 😂
    set y [encoding convertto utf-8 😂]
    binary scan $y H* z
    list [string length $y] $z
} {4 f09f9882}
test encoding-15.18 {UtfToUtfProc CESU-8 6-byte sequence} {
    set y [encoding convertto cesu-8 \U10000]
    binary scan $y H* z
    list [string length $y] $z
} {6 eda080edb080}
test encoding-15.19 {UtfToUtfProc CESU-8 upper surrogate} {
    set y [encoding convertto cesu-8 \uD800]
    binary scan $y H* z
    list [string length $y] $z
} {3 eda080}
test encoding-15.20 {UtfToUtfProc CESU-8 lower surrogate} {
    set y [encoding convertto cesu-8 \uDC00]
    binary scan $y H* z
    list [string length $y] $z
} {3 edb080}
test encoding-15.21 {UtfToUtfProc CESU-8 noncharacter} {
    set y [encoding convertto cesu-8 \uFFFF]
    binary scan $y H* z
    list [string length $y] $z
} {3 efbfbf}
test encoding-15.22 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
    set y [encoding convertto cesu-8 \x80]
    binary scan $y H* z
    list [string length $y] $z
} {2 c280}
test encoding-15.23 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
    set y [encoding convertto cesu-8 \u100]
    binary scan $y H* z
    list [string length $y] $z
} {2 c480}
test encoding-15.24 {UtfToUtfProc CESU-8 bug [048dd20b4171c8da]} {
    set y [encoding convertto cesu-8 \u3FF]
    binary scan $y H* z
    list [string length $y] $z
} {2 cfbf}

test encoding-16.1 {Utf16ToUtfProc} -body {
    set val [encoding convertfrom utf-16 NN]
    list $val [format %x [scan $val %c]]
} -result "乎 4e4e"
test encoding-16.2 {Utf16ToUtfProc} -body {
    set val [encoding convertfrom utf-16 "\xD8\xD8\xDC\xDC"]
    list $val [format %x [scan $val %c]]
} -result "\U460DC 460dc"
test encoding-16.3 {Utf16ToUtfProc} -body {
    set val [encoding convertfrom utf-16 "\xDC\xDC"]
    list $val [format %x [scan $val %c]]
} -result "\uDCDC dcdc"
test encoding-16.4 {Ucs2ToUtfProc} -body {
    set val [encoding convertfrom ucs-2 NN]
    list $val [format %x [scan $val %c]]
} -result "乎 4e4e"
test encoding-16.5 {Ucs2ToUtfProc} -body {
    set val [encoding convertfrom ucs-2 "\xD8\xD8\xDC\xDC"]
    list $val [format %x [scan $val %c]]
} -result "\U460DC 460dc"
test encoding-16.6 {Utf32ToUtfProc} -body {
    set val [encoding convertfrom utf-32le NN\0\0]
    list $val [format %x [scan $val %c]]
} -result "乎 4e4e"
test encoding-16.7 {Utf32ToUtfProc} -body {
    set val [encoding convertfrom utf-32be \0\0NN]
    list $val [format %x [scan $val %c]]
} -result "乎 4e4e"

test encoding-17.1 {UtfToUtf16Proc} -body {
    encoding convertto utf-16 "\U460DC"
} -result "\xD8\xD8\xDC\xDC"
test encoding-17.2 {UtfToUcs2Proc} -body {
    encoding convertfrom utf-16 [encoding convertto ucs-2 "\U460DC"]
} -result "\uFFFD"
test encoding-17.3 {UtfToUtf16Proc} -body {
    encoding convertto utf-16be "\uDCDC"
} -result "\xFF\xFD"
test encoding-17.4 {UtfToUtf16Proc} -body {
    encoding convertto utf-16le "\uD8D8"
} -result "\xFD\xFF"
test encoding-17.5 {UtfToUtf16Proc} -body {
    encoding convertto utf-32le "\U460DC"
} -result "\xDC\x60\x04\x00"
test encoding-17.6 {UtfToUtf16Proc} -body {
    encoding convertto utf-32be "\U460DC"
} -result "\x00\x04\x60\xDC"

test encoding-18.1 {TableToUtfProc} {
} {}

test encoding-19.1 {TableFromUtfProc} {
} {}

test encoding-20.1 {TableFreefProc} {
} {}

test encoding-21.1 {EscapeToUtfProc} {
} {}

test encoding-22.1 {EscapeFromUtfProc} {
} {}

set iso2022encData "\x1B\$B;d\$I\$b\$G\$O!\"%A%C%W\$49XF~;~\$K\$4EPO?\$\$\$?\$@\$\$\$?\$4=;=j\$r%-%c%C%7%e%\"%&%H\$N:]\$N\x1B(B
\x1B\$B>.@Z<jAwIU@h\$H\$7\$F;HMQ\$7\$F\$*\$j\$^\$9!#62\$lF~\$j\$^\$9\$,!\"@5\$7\$\$=;=j\$r\$4EPO?\$7\$J\$*\x1B(B
\x1B\$B\$*4j\$\$\$\$\$?\$7\$^\$9!#\$^\$?!\"BgJQ62=L\$G\$9\$,!\"=;=jJQ99\$N\$\"\$H!\"F|K\\8l%5!<%S%9It!J\x1B(B
casino_japanese@___.com \x1B\$B!K\$^\$G\$4=;=jJQ99:Q\$NO\"Mm\$r\$\$\$?\$@\$1\$J\$\$\$G\x1B(B
\x1B\$B\$7\$g\$&\$+!)\x1B(B"

set iso2022uniData [encoding convertfrom iso2022-jp $iso2022encData]
set iso2022uniData2 "私どもでは、チップご購入時にご登録いただいたご住所をキャッシュアウトの際の
小切手送付先として使用しております。恐れ入りますが、正しい住所をご登録しなお
お願いいたします。また、大変恐縮ですが、住所変更のあと、日本語サービス部（
casino_japanese@___.com ）までご住所変更済の連絡をいただけないで
しょうか？"

cd [temporaryDirectory]
set fid [open iso2022.txt w]
fconfigure $fid -encoding binary
puts -nonewline $fid $iso2022encData
close $fid

test encoding-23.1 {iso2022-jp escape encoding test} {
    string equal $iso2022uniData $iso2022uniData2
} 1
test encoding-23.2 {iso2022-jp escape encoding test} {
    # This checks that 'gets' isn't resetting the encoding inappropriately.
    # [Bug #523988]
    set fid [open iso2022.txt r]
    fconfigure $fid -encoding iso2022-jp
    set out ""
    set count 0
    while {[set num [gets $fid line]] >= 0} {
	if {$count} {
	    incr count 1 ; # account for newline
	    append out \n
	}
	append out $line
	incr count $num
    }
    close $fid
    if {[string compare $iso2022uniData $out]} {
	return -code error "iso2022-jp read in doesn't match original"
    }
    list $count $out
} [list [string length $iso2022uniData] $iso2022uniData]
test encoding-23.3 {iso2022-jp escape encoding test} {
    # read $fis <size> reads size in chars, not raw bytes.
    set fid [open iso2022.txt r]
    fconfigure $fid -encoding iso2022-jp
    set data [read $fid 50]
    close $fid
    return $data
} [string range $iso2022uniData 0 49] ; # 0 .. 49 inclusive == 50
cd [workingDirectory]

# Code to make the next few tests more intelligible; the code being tested
# should be in the body of the test!
proc runInSubprocess {contents {filename iso2022.tcl}} {
    set theFile [makeFile $contents $filename]
    try {
	exec [interpreter] $theFile
    } finally {
	removeFile $theFile
    }
}

test encoding-24.1 {EscapeFreeProc on open channels} exec {
    runInSubprocess {
	set f [open [file join [file dirname [info script]] iso2022.txt]]
	fconfigure $f -encoding iso2022-jp
	gets $f
    }
} {}
test encoding-24.2 {EscapeFreeProc on open channels} {exec} {
    # Bug #524674 output
    viewable [runInSubprocess {
	encoding system cp1252;	# Bug #2891556 crash revelator
	fconfigure stdout -encoding iso2022-jp
	puts ab乎棙g
	set env(TCL_FINALIZE_ON_EXIT) 1
	exit
    }]
} "ab\x1B\$B8C\x1B\$(DD%\x1B(Bg (ab\\u001B\$B8C\\u001B\$(DD%\\u001B(Bg)"
test encoding-24.3 {EscapeFreeProc on open channels} {stdio} {
    # Bug #219314 - if we don't free escape encodings correctly on channel
    # closure, we go boom
    set file [makeFile {
	encoding system iso2022-jp
	set a "乎乞也"; # 3 Japanese Kanji letters
	puts $a
    } iso2022.tcl]
    set f [open "|[list [interpreter] $file]"]
    fconfigure $f -encoding iso2022-jp
    set count [gets $f line]
    close $f
    removeFile iso2022.tcl
    list $count [viewable $line]
} [list 3 "乎乞也 (\\u4E4E\\u4E5E\\u4E5F)"]

test encoding-24.4 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xC0\x80"]
} 1
test encoding-24.5 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xC0\x81"]
} 2
test encoding-24.6 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xC1\xBF"]
} 2
test encoding-24.7 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xC2\x80"]
} 1
test encoding-24.8 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xE0\x80\x80"]
} 3
test encoding-24.9 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xE0\x9F\xBF"]
} 3
test encoding-24.10 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xE0\xA0\x80"]
} 1
test encoding-24.11 {Parse valid or invalid utf-8} {
    string length [encoding convertfrom utf-8 "\xEF\xBF\xBF"]
} 1

file delete [file join [temporaryDirectory] iso2022.txt]

#
# Begin jajp encoding round-trip conformity tests
#
proc foreach-jisx0208 {varName command} {
    upvar 1 $varName code
    foreach range {
	{2121 217E}
	{2221 222E}
	{223A 2241}
	{224A 2250}
	{225C 226A}
	{2272 2279}
	{227E 227E}
	{2330 2339}
	{2421 2473}
	{2521 2576}
	{2821 2821}
	{282C 282C}
	{2837 2837}

	{30 21 4E 7E}
	{4F21 4F53}

	{50 21 73 7E}
	{7421 7426}
    } {
	if {[llength $range] == 2} {
	    # for adhoc range. simple {first last}. inclusive.
	    scan $range %x%x first last
	    for {set i $first} {$i <= $last} {incr i} {
		set code $i
		uplevel 1 $command
	    }
	} elseif {[llength $range] == 4} {
	    # for uniform range.
	    scan $range %x%x%x%x h0 l0 hend lend
	    for {set hi $h0} {$hi <= $hend} {incr hi} {
		for {set lo $l0} {$lo <= $lend} {incr lo} {
		    set code [expr {$hi << 8 | ($lo & 0xff)}]
		    uplevel 1 $command
		}
	    }
	} else {
	    error "really?"
	}
    }
}
proc gen-jisx0208-euc-jp {code} {
    binary format cc \
	[expr {($code >> 8) | 0x80}] [expr {($code & 0xFF) | 0x80}]
}
proc gen-jisx0208-iso2022-jp {code} {
    binary format a3cca3 \
	"\x1B\$B" [expr {$code >> 8}] [expr {$code & 0xFF}] "\x1B(B"
}
proc gen-jisx0208-cp932 {code} {
    set c1 [expr {($code >> 8) | 0x80}]
    set c2 [expr {($code & 0xff)| 0x80}]
    if {$c1 % 2} {
	set c1 [expr {($c1 >> 1) + ($c1 < 0xDF ? 0x31 : 0x71)}]
	incr c2 [expr {- (0x60 + ($c2 < 0xE0))}]
    } else {
	set c1 [expr {($c1 >> 1) + ($c1 < 0xDF ? 0x30 : 0x70)}]
	incr c2 -2
    }
    binary format cc $c1 $c2
}
proc channel-diff {fa fb} {
    set diff {}
    while {[gets $fa la] >= 0 && [gets $fb lb] >= 0} {
	if {[string compare $la $lb] == 0} continue
	# lappend diff $la $lb

	# For more readable (easy to analyze) output.
	set code [lindex $la 0]
	binary scan [lindex $la 1] H* expected
	binary scan [lindex $lb 1] H* got
	lappend diff [list $code $expected $got]
    }
    return $diff
}

# Create char tables.
cd [temporaryDirectory]
foreach enc {cp932 euc-jp iso2022-jp} {
    set f [open $enc.chars w]
    fconfigure $f -encoding binary
    foreach-jisx0208 code {
	puts $f [format "%04X %s" $code [gen-jisx0208-$enc $code]]
    }
    close $f
}
# shiftjis == cp932 for jisx0208.
file copy -force cp932.chars shiftjis.chars

set NUM 0
foreach from {cp932 shiftjis euc-jp iso2022-jp} {
    foreach to {cp932 shiftjis euc-jp iso2022-jp} {
	test encoding-25.[incr NUM] "jisx0208 $from => $to" -setup {
	    cd [temporaryDirectory]
	} -body {
	    set f [open $from.chars]
	    fconfigure $f -encoding $from
	    set out [open $from.$to.tcltestout w]
	    fconfigure $out -encoding $to
	    puts -nonewline $out [read $f]
	    close $out
	    close $f
	    # then compare $to.chars <=> $from.to.tcltestout as binary.
	    set fa [open $to.chars rb]
	    set fb [open $from.$to.tcltestout rb]
	    channel-diff $fa $fb
	    # Difference should be empty.
	} -cleanup {
	    close $fa
	    close $fb
	} -result {}
    }
}

test encoding-26.0 {Tcl_GetEncodingSearchPath} -constraints {
    testgetencpath
} -setup {
    set origPath [testgetencpath]
    testsetencpath slappy
} -body {
    testgetencpath
} -cleanup {
    testsetencpath $origPath
} -result slappy

file delete {*}[glob -directory [temporaryDirectory] *.chars *.tcltestout]
# ===> Cut here <===

# EscapeFreeProc, GetTableEncoding, unilen are fully tested by the rest of
# this file.


test encoding-27.1 {encoding dirs basic behavior} -returnCodes error -body {
    encoding dirs ? ?
} -result {wrong # args: should be "encoding dirs ?dirList?"}
test encoding-27.2 {encoding dirs basic behavior} -returnCodes error -body {
    encoding dirs "\{not a list"
} -result "expected directory list but got \"\{not a list\""

}


test encoding-28.0 {all encodings load} -body {
	set string hello
	foreach name [encoding names] {
		incr count
		encoding convertto $name $string

		# discard the cached internal representation of Tcl_Encoding
		# Unfortunately, without this, encoding 2-1 fails.
		llength $name
	}
	return $count
} -result [expr {[info exists ::tcl_precision] ? 92 : 91}]

runtests

}

# cleanup
namespace delete ::tcl::test::encoding
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: