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use strict;
use warnings;
use Test::More;
use File::Spec;
# Initialise filenames and check they're there
my $SrcFile = File::Spec->catfile('t', 'desertnet.src');
my $XMLFile = File::Spec->catfile('t', 'desertnet.xml');
unless(-e $SrcFile) {
plan skip_all => 'test data missing';
}
# Make sure we can write to the filesystem and check it uses the same
# clock as the machine we're running on.
my $t0 = time();
unless(open(XML, ">$XMLFile")) {
plan skip_all => "can't create test file: $!";
}
close(XML);
my $t1 = (stat($XMLFile))[9];
my $t2 = time();
if($t1 < $t0 or $t2 < $t1) {
plan skip_all => 'time moved backwards!'
}
plan tests => 8;
##############################################################################
# S U P P O R T R O U T I N E S
##############################################################################
##############################################################################
# Copy a file
#
sub CopyFile {
my($Src, $Dst) = @_;
open(IN, $Src) || return(undef);
local($/) = undef;
my $Data = <IN>;
close(IN);
open(OUT, ">$Dst") || return(undef);
print OUT $Data;
close(OUT);
return(1);
}
##############################################################################
# Wait until the current time is greater than the supplied value
#
sub PassTime {
my($Target) = @_;
while(time <= $Target) {
sleep 1;
}
}
##############################################################################
# T E S T R O U T I N E S
##############################################################################
use XML::Simple;
# Initialise test data
my $Expected = {
'server' => {
'sahara' => {
'osversion' => '2.6',
'osname' => 'solaris',
'address' => [
'10.0.0.101',
'10.0.1.101'
]
},
'gobi' => {
'osversion' => '6.5',
'osname' => 'irix',
'address' => '10.0.0.102'
},
'kalahari' => {
'osversion' => '2.0.34',
'osname' => 'linux',
'address' => [
'10.0.0.103',
'10.0.1.103'
]
}
}
};
ok(CopyFile($SrcFile, $XMLFile), 'copied known good source file');
$t0 = (stat($XMLFile))[9]; # Remember its timestamp
# Parse it with caching enabled
my $opt = XMLin($XMLFile, cache => 'memshare');
is_deeply($opt, $Expected, 'parsed expected data from file');
if ('VMS' eq $^O) {
1 while (unlink($XMLFile));
} else {
unlink($XMLFile);
}
ok(! -e $XMLFile, 'deleted the XML source file');
open(FILE, ">$XMLFile"); # Re-create it (empty)
close(FILE);
ok(-e $XMLFile, 'and recreated it (empty)');
$t1 = $t0 - 1;
eval { utime($t1, $t1, $XMLFile); }; # but wind back the clock
$t2 = (stat($XMLFile))[9]; # Skip these tests if that didn't work
SKIP: {
skip 'no utime', 2 if($t2 >= $t0);
$opt = XMLin($XMLFile, cache => 'memshare');
is_deeply($opt, $Expected, 'got expected values from the cache');
is(-s $XMLFile, 0, 'even though the XML file is empty');
}
PassTime(time()); # Ensure timestamp changes
open(FILE, ">$XMLFile"); # Write some new data to the XML file
print FILE qq(<opt one="1" two="2"></opt>\n);
close(FILE);
PassTime(time()); # Ensure current time later than file time
# Parse again with caching enabled
$opt = XMLin($XMLFile, cache => 'memshare');
is_deeply($opt, { one => 1, two => 2}, 'parsed new data through cache');
$opt->{three} = 3; # Alter the returned structure
# Retrieve again from the cache
my $opt2 = XMLin($XMLFile, cache => 'memshare');
is($opt2->{three}, 3, 'cache was modified');
exit(0);
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