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t/09population.t  view on Meta::CPAN

my $scorer2 = "[   @]22M^]21M^]20M^" . (' 'x605);
my $scorer3 = "[@  <]02M^]20M^]11M^" . (' 'x605);
my $popid = -10;
my @population = map { Blueprint->new( code => $_, dimensions => 4, id => $popid++, host => 'test' ) }
    ($quit1,$quit1,$concede1,$concede1,$dier1,$dier1,$scorer3,$scorer1,$scorer2, $scorer2);
$population[3]{host} = 'not_test';
$population[6]{host} = 'not_test1';
$population[7]{host} = 'not_test2';
$population[8]{host} = 'not_test';
seed(0.3, 0, 0.7, oneish);
$population->blueprints([@population]);
$population->fight();
@population = @{$population->blueprints};
is(scalar @population, 3, 'population reduced to 25% of its original size');
BEGIN { $num_tests += 1 };
my @expected_results = (
    {id => -4,  code => $scorer3,  fitness =>  3, host => 'not_test1'},
    {id => -2,  code => $scorer2,  fitness =>  2, host => 'not_test'},
    {id => -10, code => $quit1,    fitness =>  1, host => 'test'},
);
my $ref = $population->blueprints;
for my $id (0..@expected_results-1) {
    is($$ref[$id]{id},      $expected_results[$id]{id},      "sorted $id id right");
    is($$ref[$id]{fitness}, $expected_results[$id]{fitness}, "sorted $id fitness right");
    is($$ref[$id]{host},    $expected_results[$id]{host},    "sorted $id host right");
    is($$ref[$id]{code},    $expected_results[$id]{code},    "sorted $id code right");
}
BEGIN { $num_tests += 4*3 };


# pair
seed(oneish, oneish);
my ($c1, $c2) = $population->pair(map { $$_{fitness} } (@population));
is($$c1{id}, $population[2]{id}, "pair bias works");
is($$c2{id}, $population[0]{id}, "pair bias works");
seed(0, 0);
($c1, $c2) = $population->pair(map { $$_{fitness} } (@population));
is($$c1{id}, $population[0]{id}, "pair bias works");
is($$c2{id}, $population[1]{id}, "pair bias works");
BEGIN { $num_tests += 4 };


# save
my $goodfile = IO::File->new('t/savefile');
my $subdir = tempdir(CLEANUP => 1);
my $olddir = getcwd();
chdir($subdir);
$population->generation(0);
$population->cleanup_intermediate_savefiles();
$population->generation(999);
$population->save();
ok(-d 'results-host', 'results subdir has been created');
ok(-f 'results-host/host-ttt-999', 'filename is correct');
$population->generation(1000);
$population->save();
ok(!-f 'results-host/host-ttt-999', 'old filename is removed');
ok(-f 'results-host/host-ttt-1000', 'new filename is still there');
my $testfile = IO::File->new(<results-host/*>);
{
    local $/ = undef;
    my $gooddata = <$goodfile>;
    my $testdata = <$testfile>;
    is($testdata, $gooddata, 'savefile contents match up');
    undef $goodfile;
    undef $testfile;
}
chdir($olddir);
BEGIN { $num_tests += 5 };


# config
$population->generation(999);
is($population->config->config('basic_value'), 42, 'global config works');
$population->generation(1000);
is($population->config->config('basic_value'), 67, 'config overrides work');
BEGIN { $num_tests += 2 };


# breed
seed(map { oneish, 0.3, 0, 0.7, oneish, 0.5, 0.2, 0.1, 0.1, oneish, 0.4, 0, 0, 0, 0, 0 } (1..1000));
$population->breed();
@population = @{$population->blueprints};
my %accepted_sizes = (1 => 1, 256 => 1, 625 => 1, 1296 => 1);
for my $blueprint (@population) {
    ok(exists($accepted_sizes{length($blueprint->code)}), "new code has reasonable length ".length($blueprint->code));
}
BEGIN { $num_tests += 10 };


# new
$ref = ['abcdefghijklmnop'];
$population = Population->new(Host => 'whee', Generation => 20, Blueprints => $ref);
$ref = $population->blueprints;
is($population->physics->name,   'othello',
                                 'population->new sets physics right');
is($population->popsize,     5,  'population->new sets popsize right');
is($population->generation,  20, 'population->new sets generation right');
is($$ref[0]->code, 'abcdefghijklmnop', 'population->new sets blueprints right');
is($population->host,    'whee', 'population sets host right');
BEGIN { $num_tests += 5 };


# load
dies_ok(sub { Population->load('nonexistent_file') }, 'nonexistent file');
dies_ok(sub { Population->load('Build.PL') }, 'invalid file');
$population = Population->load('t/savefile');
is($population->physics->name,  'ttt', '$population->load gets physics right');
is($population->generation,      1001, '$population->load gets generation right');
is(new_popid(),                    23, '$population->load gets popid right');
$ref = $population->blueprints;
is(scalar @$ref, 3, '$population->load returned the right number of blueprints');
BEGIN { $num_tests += 6 };
@expected_results = (
    {id => -4,  code => $scorer3,  fitness =>  3, host => 'not_test1'},
    {id => -2,  code => $scorer2,  fitness =>  2, host => 'not_test'},
    {id => -10, code => $quit1,    fitness =>  1, host => 'test'},
);
for my $id (0..@expected_results-1) {
    is($$ref[$id]{id},      $expected_results[$id]{id},      "loaded $id id right");
    is($$ref[$id]{host},    $expected_results[$id]{host},    "loaded $id host right");
    is($$ref[$id]{code},    $expected_results[$id]{code},    "loaded $id code right");
    is($$ref[$id]{fitness}, $expected_results[$id]{fitness}, "loaded $id fitness right");
}