/**
* Make a new experiment with given variants
*
* @since 0.1.0
*
* @param array $variants
* @param int|string $id Experiment (group) ID
* @param \MaBandit\MaBandit $bandit MaBandit object
*/
public function __construct(array $variants, $id, \MaBandit\MaBandit $bandit)
{
$this->experiment = $bandit->createExperiment((string) $id, $variants);
if (method_exists($bandit->getPersistor(), 'save_levers')) {
$bandit->getPersistor()->batchSave($this->experiment->getLevers(), $id);
}
}
public function chooseLever(\MaBandit\Experiment $experiment, $increment = true)
{
$levers = $experiment->getLevers();
if (1 == count($levers)) {
$lever = $levers[0];
} else {
$lever = $this->getStrategy()->chooseLever($experiment);
}
if ($increment) {
$lever->incrementDenominator();
return $this->validateLever($this->getPersistor()->saveLever($lever));
} else {
return $lever;
}
}
public function testGetExperimentLoadsPersistedExperimentAndReturns()
{
$levers = \MaBandit\Lever::createBatchFromValues(array('blue', 'green'));
$ex = \Mabandit\Experiment::withName('testGetExperiment')->forLevers($levers);
$bandit = $this->getBandit();
foreach ($levers as $l) {
$bandit->getPersistor()->saveLever($l);
}
$this->assertEquals($bandit->getExperiment('testGetExperiment')->getLevers(), $ex->getLevers());
}
public function testForLeversReturnsExperimentWithSpecifiedLeversSet()
{
$levers = \MaBandit\Lever::createBatchFromValues(array('blue', 'green'));
$experiment = \MaBandit\Experiment::withName('test')->forLevers($levers);
$taggedLevers = array();
foreach ($levers as $l) {
$nl = clone $l;
$nl->experiment = 'test';
$taggedLevers[] = $nl;
}
$this->assertEquals($taggedLevers, $experiment->getLevers());
$this->assertEquals('test', $experiment->name);
}
public function chooseLever(\MaBandit\Experiment $experiment)
{
$levers = $experiment->getLevers();
return $this->shouldExplore($levers) ? $this->chooseExploratoryLever($levers) : $this->getWinner($levers);
}
public function testChooseLeverAddsToDenominatorPersistsAndReturnsLever()
{
$bandit = $this->getBandit();
$levers = \MaBandit\Lever::createBatchFromValues(array('yes', 'no'));
$ex = \MaBandit\Experiment::withName('testchoosepersist')->forLevers($levers);
$chosen = $bandit->chooseLever($ex);
$this->assertEquals(1, $chosen->getDenominator());
$f = new \MaBandit\Persistence\PersistedLever($chosen->getValue(), $ex->name);
$this->assertEquals($chosen, $bandit->getPersistor()->loadLever($f));
}
