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#!/usr/bin/perl -w
#
# Test suite for vw:
#
# You may add arbitrary (train/test/varying-options) tests
# by adding data files and their expected reference STDOUT and STDERR
#
# See __DATA__ below for how to add more tests
#
use Getopt::Std;
use vars qw($opt_d);
my $VW;
my @TrainSets = glob('train-sets/*.dat');
my @TestSets = glob('test-sets/*.dat');
sub usage(@) {
print STDERR @_, "\n" if (@_);
die "Usage: $0 [-v] [vw-executable]
By default will run against ../vw
Options:
-d print detailed diff on failures
";
}
#
# which vw executable to test against
#
sub which_vw() {
if (@ARGV == 1) {
my $exe = $ARGV[0];
if (-x $exe) {
printf STDERR "Testing vw: %s\n", $exe;
return $exe;
} else {
usage("argument $exe: not an executable");
}
} elsif (@ARGV == 0) {
foreach my $dir ('.', '..', split(':', $ENV{PATH})) {
my $exe = "$dir/vw";
if (-x $exe) {
printf STDERR "Testing vw: %s\n", $exe;
return $exe;
}
}
}
usage("can't find a 'vw' executable to test on");
}
sub init() {
$0 =~ s{.*/}{};
getopts('d') || usage();
$VW = which_vw();
}
sub trim_spaces($) {
my $str = shift;
$str =~ s/^\s+//;
$str =~ s/\s+$//;
$str;
}
# __DATA__ test counter
my $TestNo = 0;
sub next_test() {
my ($cmd, $out_ref, $err_ref, $pred_ref, $pred);
$TestNo++;
while (! eof(DATA)) {
my $line = <DATA>;
last if (defined($line) && $line =~ /^\s*$/);
next if ($line =~ /^\s*#/); # skip comment lines
if ($line =~ /{VW}/) {
# The command line
$cmd = trim_spaces($line);
$cmd =~ s/{VW}/$VW/;
if ($cmd =~ /\s-p\s+(\S+)/) {
# -p predict_file
$pred = $1;
}
next;
}
if ($line =~ m/\.stdout\b/) {
$out_ref = trim_spaces($line);
next;
}
if ($line =~ /\.stderr\b/) {
$err_ref = trim_spaces($line);
next;
}
if ($line =~ /\.predict\b/) {
$pred_ref = trim_spaces($line);
next;
}
}
if (eof(DATA) && !defined $cmd) {
return (undef, undef, undef, undef);
}
unless (defined $cmd) {
die "$0: test $TestNo: command is undefined\n";
}
unless (defined $out_ref) {
die "$0: test $TestNo: stdout ref: undefined\n";
}
unless (defined $err_ref) {
die "$0: test $TestNo: stderr ref: undefined\n";
}
# print STDERR "next_test: (\$cmd, $out_ref, $err_ref, $pred_ref, $pred)\n";
($cmd, $out_ref, $err_ref, $pred_ref, $pred);
}
sub diff($$) {
my ($outfile, $reffile) = @_;
system("diff $outfile $reffile >diff.tmp");
my $status = $? >> 8;
if (-s 'diff.tmp') {
if ($opt_d) {
system("cat diff.tmp")
}
}
$status;
}
sub run_tests() {
print STDERR "If 'FAILED' - rerun with -d to see diff output\n"
unless ($opt_d);
my ($cmd, $out_ref, $err_ref, $pred_ref);
my ($outf, $errf, $predf);
mkdir('models', 0755) unless (-d 'models');
unlink(glob('*.tmp'));
unlink(glob('*.cache'));
unlink(glob('*/*.cache'));
while (($cmd, $out_ref, $err_ref, $pred_ref, $predf) = next_test()) {
last unless (defined $cmd);
($outf, $errf) = ('stdout.tmp', 'stderr.tmp');
# run the test
system("($cmd) >$outf 2>$errf");
my $status = $? >> 8;
if ($status) {
die "$0: test $TestNo: '$cmd' failed: status=$status\n";
}
# command succeded
# -- compare stdout
unless (-e $out_ref) {
die "$0: test $TestNo: stdout ref: $out_ref: $!\n";
}
$status = diff($outf, $out_ref);
if ($status) {
printf STDERR "%s: test %d: FAILED: stdout(%s) != ref(%s):\n",
$0, $TestNo, $outf, $out_ref;
} else {
print STDERR "$0: test $TestNo: stdout OK\n";
}
# -- compare stderr
unless (-e $err_ref) {
die "$0: test $TestNo: FAILED: stderr ref: $err_ref: $!\n";
}
$status = diff($errf, $err_ref);
if ($status) {
printf STDERR "%s: test %d: FAILED: stderr(%s) != ref(%s):\n",
$0, $TestNo, $errf, $err_ref;
} else {
print STDERR "$0: test $TestNo: stderr OK\n";
}
# -- compare predict
next unless (defined $pred_ref);
$predf = 'predict.tmp' unless (defined $predf);
$status = diff($predf, $pred_ref);
if ($status) {
printf STDERR "%s: test %d: FAILED: predict(%s) != ref(%s):\n",
$0, $TestNo, $predf, $pred_ref;
} else {
print STDERR "$0: test $TestNo: predict OK\n";
}
}
}
# --- main
init();
run_tests();
# Add tests below the __DATA__ line
#
# Each test is a series of lines, terminated by an empty line (or EOF)
#
# Each test is comprised of:
# 1st item is the command to run, {VW} represents the vw executable
# The next (output) items are reference files to compare outputs to:
# 2nd item is the expected (reference file) standard output
# 3rd item is the expected (reference file) standard error
# 4th (optional) item is reference prediction file
# All filenames are relative to this directory
# The temporary output file-names are implicit:
# (stdout.tmp stderr.tmp predict.tmp)
# Except: if -p ... appears in the command, it will be used as the predict file
#
__DATA__
# Test 1:
{VW} -b 17 -l 20 --initial_t 128000 --power_t 1 -d train-sets/0001.dat -f models/0001.model -c --passes 2 --compressed --ngram 3 --skips 1
train-sets/ref/0001.stdout
train-sets/ref/0001.stderr
# Test 2: checking predictions as well
{VW} -t train-sets/0001.dat -i models/0001.model -p 001.predict.tmp
test-sets/ref/0001.stdout
test-sets/ref/0001.stderr
pred-sets/ref/0001.predict
# Test 3: without -d, training only
{VW} train-sets/0002.dat -f models/0002.model
train-sets/ref/0002.stdout
train-sets/ref/0002.stderr
# Test 4: same, with -d
{VW} -d train-sets/0002.dat -f models/0002.model
train-sets/ref/0002.stdout
train-sets/ref/0002.stderr
# Test 5: add bigrams, adaptive, and more (same input, different outputs)
{VW} --initial_t 1 --power_t 0.5 --adaptive -q tr -f models/0002a.model train-sets/0002.dat
train-sets/ref/0002a.stdout
train-sets/ref/0002a.stderr
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