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# crc32.test - Copyright (C) 2002 Pat Thoyts <patthoyts@users.sourceforge.net>
#
# Tests for the crc32 commands
#
# -------------------------------------------------------------------------
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# -------------------------------------------------------------------------
# RCS: @(#) $Id: crc32.test,v 1.12 2009/03/04 01:01:42 patthoyts Exp $
# -------------------------------------------------------------------------
source [file join \
[file dirname [file dirname [file join [pwd] [info script]]]] \
devtools testutilities.tcl]
testsNeedTcl 8.2
testsNeedTcltest 1.0
testing {
useLocal crc32.tcl crc32 ::crc
}
# -------------------------------------------------------------------------
if {[::crc::LoadAccelerator critcl]} {
puts "> critcl based"
}
if {[::crc::LoadAccelerator trf]} {
puts "> Trf based"
}
puts "> pure Tcl"
# -------------------------------------------------------------------------
# Handle multiple implementation testing
#
array set preserve [array get ::crc::accel]
proc implementations {} {
variable ::crc::accel
foreach {a v} [array get accel] {if {$v} {lappend r $a}}
lappend r tcl; set r
}
proc select_implementation {impl} {
variable ::crc::accel
foreach e [array names accel] { set accel($e) 0 }
if {[string compare "tcl" $impl] != 0} {
set accel($impl) 1
}
}
proc reset_implementation {} {
variable ::crc::accel
array set accel [array get ::preserve]
}
# -------------------------------------------------------------------------
test crc32-1.0 {crc32 with no parameters } {
catch {::crc::crc32} result
string match "wrong # args: *" $result
} {1}
# -------------------------------------------------------------------------
set tests {
1 ""
"0"
2 "a"
"3904355907"
3 "abc"
"891568578"
4 "message digest"
"538287487"
5 "abcdefghijklmnopqrstuvwxyz"
"1277644989"
6 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
"532866770"
7 "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
"2091469426"
8 "\uFFFE\u0000\u0001\u0002"
"2968055525"
9 "-"
"2547889144"
10 "--"
"606868581"
}
foreach impl [implementations] {
select_implementation $impl
foreach {n msg expected} $tests {
test crc32-$impl-2.$n "crc32 as unsigned integer ($impl)" {
list [catch {::crc::crc32 $msg} err] $err
} [list 0 $expected]
}
reset_implementation
}
# -------------------------------------------------------------------------
set tests {
1 ""
"0x0"
2 "a"
"0xE8B7BE43"
3 "abc"
"0x352441C2"
4 "message digest"
"0x20159D7F"
5 "abcdefghijklmnopqrstuvwxyz"
"0x4C2750BD"
6 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
"0x1FC2E6D2"
7 "12345678901234567890123456789012345678901234567890123456789012345678901234567890"
"0x7CA94A72"
8 "\uFFFE\u0000\u0001\u0002"
"0xB0E8EEE5"
9 "-"
"0x97DDB3F8"
10 "--"
"0x242C1465"
}
foreach impl [implementations] {
select_implementation $impl
foreach {n msg expected} $tests {
test crc32-$impl-3.$n "crc32 as hexadecimal string ($impl)" {
list [catch {::crc::crc32 -format 0x%X $msg} err] $err
} [list 0 $expected]
}
reset_implementation
}
# -------------------------------------------------------------------------
set crc::testfile [info script]
proc crc::loaddata {filename} {
set f [open $filename r]
fconfigure $f -translation binary
set data [read $f]
close $f
return $data
}
foreach impl [implementations] {
select_implementation $impl
test crc32-$impl-4.0 "crc32 file option ($impl)" {
set r1 [::crc::crc32 -file $crc::testfile]
set r2 [::crc::crc32 [crc::loaddata $crc::testfile]]
if {$r1 != $r2} {
set r "differing results: $r1 != $r2"
} else {
set r ok
}
} {ok}
reset_implementation
}
# -------------------------------------------------------------------------
set tests {
1 0 ""
"4294967295"
2 1 ""
"4294967294"
3 0 "Hello, World!"
"482441901"
4 1 "Hello, World!"
"3243746088"
5 0 "-"
"3122701194"
}
foreach impl [implementations] {
select_implementation $impl
foreach {n seed msg expected} $tests {
test crc32-$impl-5.$n "crc32 initial seed option ($impl)" {
list [catch {::crc::crc32 -seed $seed $msg} err] $err
} [list 0 $expected]
}
reset_implementation
}
# -------------------------------------------------------------------------
set tests {
1 "a" "bc"
"891568578"
2 "message" " digest"
"538287487"
3 "abcdefghijkl" "mnopqrstuvwxyz"
"1277644989"
4 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012345678" "9"
"532866770"
5 "1234567890"
"1234567890123456789012345678901234567890123456789012345678901234567890"
"2091469426"
6 "\uFFFE\u0000" "\u0001\u0002"
"2968055525"
}
foreach impl [implementations] {
select_implementation $impl
foreach {n msgA msgB expected} $tests {
test crc32-$impl-6.$n "crc32 using -seed ($impl)" {
list [catch {
::crc::crc32 -seed [expr {[::crc::crc32 $msgA] ^ 0xffffffff}] $msgB
} err] $err
} [list 0 $expected]
}
reset_implementation
}
# -------------------------------------------------------------------------
catch {unset crc::filename}
testsuiteCleanup
# Local Variables:
# mode: tcl
# indent-tabs-mode: nil
# End:
|
