$t->is($service->getIdentifier(), $identifier, '->getIdentifier() returns the identifier');
$t->diag('->addBuilder(), ->buildDocument()');
$doc = $service->buildDocument(42);
$t->is($doc->getGuid(), $identifier->getGuid(42), '->buildDocument() builds a document with the correct GUID');
$t->is(count($doc->getFields()), 1, '->buildDocument() builds a document with one field only with no builders');
$t->is($doc->getField('_service')->getValue(), 'foobar', '->buildDocument() builds a document with a field "_service" as the name of the service');
$service->addBuilder(new xfMockBuilder());
$doc = $service->buildDocument(42);
$t->is($doc->getField('foobar')->getValue(), 'bar', '->buildDocument() acknowledges registered builders');
$t->diag('->addRetort(), ->getRetorts()');
$retort = new xfMockRetort();
$service->addRetort($retort);
$t->is($service->getRetorts(), array($retort), '->getRetorts() returns the retorts registered');
$t->diag('->setOption(), ->getOption(), ->hasOption()');
$t->ok(!$service->hasOption('foobar'), '->hasOption() returns false for unset options');
$t->is($service->getOption('foobar'), null, '->getOption() returns null for unset options');
$t->is($service->getOption('foobar', 42), 42, '->getOption() returns the default response for unset options');
$service->setOption('foobar', 82);
$t->ok($service->hasOption('foobar'), '->hasOption() returns true for set options');
$t->is($service->getOption('foobar', 42), 82, '->getOption() returns the option value');
$t->diag('->configure()');
class FooService extends xfService
{
    public $configured = false;
    public function configure()
    {
        $this->configured = true;
    }
}
$service = new FooService($identifier);
$t->ok($service->configured, '->configure() is called during object construction');