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package TestLog;
# $Id$
# These test facilities has been developped by C. Mertz <mertz@cena.fr>
use IO::Handle; # for autoflushing the logs
use Carp;
use strict;
use vars qw( $VERSION @ISA @EXPORT );
($VERSION) = sprintf("%d.%02d", q$Revision$ =~ /(\d+)\.(\d+)/);
@EXPORT = qw( openLog setZincLog log test_eval printable printables
equal_flat_arrays nequal_cplx_arrays);
use constant ERROR => '--an error--';
my $opt_log;
sub openLog {
my ($outfile);
($outfile,$opt_log) = @_;
if ( open LOG, "$outfile.prev" ) {
close LOG;
unlink "$outfile.prev";
}
if ( open LOG, $outfile ) {
close LOG;
link $outfile, "$outfile.prev";
unlink "$outfile";
}
open LOG,">$outfile";
autoflush LOG 1; # autoflush is important so that logs are up-to-date if Zinc crashes!
}
### print log information to the logfile
### if $level is <= than opt_log (def = 0) then print log on the stdout
### - a loglevel of -100 means an error to be logged with %%% prefix
### - a loglevel of -10 means an error in the test (data missing?)
### - a loglevel of 0 means an message to be usually printed (and logged in any case)
### - a loglevel greater than 1 is for trace only
sub log {
my ($loglevel, @strgs) = @_;
if ($loglevel <= $opt_log) {
print "%%%% " if $loglevel == -100;
print "%% " if $loglevel == -10;
print @strgs;
}
print LOG "%%%% " if $loglevel == -100;
print LOG "%% " if $loglevel == -10;
print LOG @strgs;
} # end log
my $zinc;
## to init the $zinc
sub setZincLog {
($zinc)=@_;
}
my %method_with_tagOrId =
("anchorxy" => 1, "bbox" => 1, "bind" => 1, "chggroup" => 1,
"clone" => 1, "contour" => 1, "coords"=> 1, "cursor" => 1,
"dchars" => 1, "dtag" => 1, "focus" => 1, "gettags" => 1,
"group" => 1, # blabla... to complete
"itemcget" => 1, "itemconfigure" => 1, # blabla... to complete
"remove" => 1,
);
### - a loglevel of -100 means an error to be loggued with %%% prefix
### - a loglevel of -10 means an error in the test (data missing?)
### - a loglevel of of 0 or greater is for trace only if an error occured
sub test_eval {
my ($loglevel, $method, @args) = @_;
my @strs;
my $start_index = 0;
if (scalar @args) {
if ($method_with_tagOrId{$method} and $args[0] =~ /\d+/) {
my $item = $args[0];
@strs = $item . " (" . $zinc->type($item) . ")";
$start_index = 1;
}
foreach my $arg (@args[$start_index..$#args]) {
push @strs, &printable ($arg);
}
}
my $string2log = "\$zinc->$method (" . join (", ", @strs) . ")";
if ($method eq 'itemcget' or $method eq 'get') {
$string2log .= " := " ;
}
else {
$string2log .= "\n";
}
&log ($loglevel, $string2log);
my (@res, $res);
if (wantarray()) {
@res = eval { $zinc->$method (@args) } ;
if ($method eq 'itemcget' or $method eq 'get') {
&log ($loglevel, printables(@res) . "\n" );
}
}
else {
$res = eval { $zinc->$method (@args) } ;
if ($method eq 'itemcget' or $method eq 'get') {
&log ($loglevel, &printable($res) . "\n");
}
}
if ($@) { # in case of error, logging!
&log (-100, "Error while evaluating: $string2log");
&log (-100, $@);
my $msgl = &Carp::longmess;
my ($msg2) = $msgl =~ /.*?( at .*)/s ;
&log (-100, "\t$msg2");
return (ERROR);
}
else {
if (wantarray()) {
return @res;
}
else {
return $res;
}
}
} # end of test_eval
### to print something in a readable form
sub printable {
my ($value) = @_;
my $ref = ref($value);
if ($ref eq 'ARRAY') {
return printables ( @{$value} );
}
elsif ($ref eq 'Tk::Photo') {
return "Tk::Photo(\"". $value->cget(-file) . "\)";
}
elsif ($ref eq '') { # scalar
if (defined $value) {
if ($value eq '') {
return "''";
}
else {
return $value;
}
}
else {
return "undef";
}
}
else { # some class instance
return $value;
}
} # end printable
### to print an array of something
sub printables {
my (@values) = @_;
if (! scalar @values) {
return "[]";
}
else { # the arry is not empty
my @res;
foreach my $value (@values) {
push @res, &printable($value);
}
return ("[ " . join (', ', @res) . " ]") ;
}
} # end printables
## return 1 if arrays of scalars have the same length and every items are eq
sub equal_flat_arrays {
my ($refArray1, $refArray2) = @_;
my @array1 = @{$refArray1};
my @array2 = @{$refArray2};
return 0 if ($#array1 != $#array2);
for my $i (0..$#array1) {
return 0 if ($array1[$i] ne $array2[$i]);
}
return 1;
} # equal_arrays
## return 0 if arrays of anything are equal
## return 'length' if their length are different
## return xx if some elements are différents
## arrays may be arrays of arrays of arrays ...
sub nequal_cplx_arrays {
my ($refArray1, $refArray2) = @_;
my @array1 = @{$refArray1};
my @array2 = @{$refArray2};
# print "array1=", &printables(@array1), "\narray2=",&printables(@array2),"\n";
return 'length' if ($#array1 != $#array2);
for my $i (0..$#array1) {
my $el1 = $array1[$i];
my $el2 = $array2[$i];
if (ref($el1)) {
# print "REF el1=",ref($el1),"\n";
if (!ref($el2)) {
return "elts at index $i are different: $el1 != $el2\n";
} elsif (ref($el2) ne ref($el1)) {
return "elts at index $i are of different type: ".
ref($el2), " ne ", ref($el1), "\n";
} elsif (ref($el2) eq 'ARRAY') {
if (my $res = &nequal_cplx_arrays ($el1,$el2)) {
return "elts at index $i are different: $res";
}
}
} elsif (ref($el2) or $el1 ne $el2) {
return "elts at index $i are different $el1 != $el2\n";
}
}
return 0;
} # nequal_cplx_arrays
1;
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