--- /dev/null
+# Shared defs for test programs
+
+# Paths. Must make case-insensitive.
+use constant TESTDIR => 'testdir';
+use constant INPUTZIP => 'testin.zip';
+use constant OUTPUTZIP => 'testout.zip';
+
+# Do we have the 'zip' and 'unzip' programs?
+use File::Which ();
+use constant HAVEZIP => !! File::Which::which('zip');
+use constant HAVEUNZIP => !! File::Which::which('unzip');
+
+use constant ZIP => 'zip ';
+use constant ZIPTEST => 'unzip -t ';
+
+# 300-character test string
+use constant TESTSTRING => join ( "\n", 1 .. 102 ) . "\n";
+use constant TESTSTRINGLENGTH => length(TESTSTRING);
+
+# CRC-32 should be ac373f32
+use constant TESTSTRINGCRC => Archive::Zip::computeCRC32(TESTSTRING);
+
+# This is so that it will work on other systems.
+use constant CAT => $^X . ' -pe "BEGIN{binmode(STDIN);binmode(STDOUT)}"';
+use constant CATPIPE => '| ' . CAT . ' >';
+
+use vars qw($zipWorks $testZipDoesntWork $catWorks);
+local ( $zipWorks, $testZipDoesntWork, $catWorks );
+
+# Run ZIPTEST to test a zip file.
+sub testZip {
+ my $zipName = shift || OUTPUTZIP;
+ if ( $testZipDoesntWork ) {
+ return wantarray ? ( 0, '' ) : 0;
+ }
+ my $cmd = ZIPTEST . $zipName . ( $^O eq 'MSWin32' ? '' : ' 2>&1' );
+ my $zipout = `$cmd`;
+ return wantarray ? ( $?, $zipout ) : $?;
+}
+
+# Return the crc-32 of the given file (0 if empty or error)
+sub fileCRC {
+ my $fileName = shift;
+ local $/ = undef;
+ my $fh = IO::File->new( $fileName, "r" );
+ binmode($fh);
+ return 0 if not defined($fh);
+ my $contents = <$fh>;
+ return Archive::Zip::computeCRC32($contents);
+}
+
+#--------- check to see if cat works
+
+sub testCat {
+ my $fh = IO::File->new( CATPIPE . OUTPUTZIP );
+ binmode($fh);
+ my $testString = pack( 'C256', 0 .. 255 );
+ my $testCrc = Archive::Zip::computeCRC32($testString);
+ $fh->write( $testString, length($testString) ) or return 0;
+ $fh->close();
+ ( -f OUTPUTZIP ) or return 0;
+ my @stat = stat(OUTPUTZIP);
+ $stat[7] == length($testString) or return 0;
+ fileCRC(OUTPUTZIP) == $testCrc or return 0;
+ unlink(OUTPUTZIP);
+ return 1;
+}
+
+BEGIN {
+ $catWorks = testCat();
+ unless ( $catWorks ) {
+ warn( 'warning: ', CAT, " doesn't seem to work, may skip some tests" );
+ }
+}
+
+#--------- check to see if zip works (and make INPUTZIP)
+
+BEGIN {
+ unlink(INPUTZIP);
+
+ # Do we have zip installed?
+ if ( HAVEZIP ) {
+ my $cmd = ZIP . INPUTZIP . ' *' . ( $^O eq 'MSWin32' ? '' : ' 2>&1' );
+ $zipout = `$cmd`;
+ $zipWorks = not $?;
+ unless ( $zipWorks ) {
+ warn( 'warning: ', ZIP, " doesn't seem to work, may skip some tests" );
+ }
+ }
+}
+
+#--------- check to see if unzip -t works
+
+BEGIN {
+ $testZipDoesntWork = 0;
+ if ( HAVEUNZIP ) {
+ my ( $status, $zipout ) = testZip(INPUTZIP);
+ $testZipDoesntWork = $status;
+
+ # Again, on Win32 no big surprise if this doesn't work
+ if ( $testZipDoesntWork ) {
+ warn( 'warning: ', ZIPTEST, " doesn't seem to work, may skip some tests" );
+ }
+ }
+}
+
+1;