public function testGetVariantChooser()
{
// Arrange
$bag = new Bag($this->test, $this->participationFilter, $this->variantChooser);
// Act
$chooser = $bag->getVariantChooser();
// Assert
$this->assertInstanceOf(ChooserInterface::class, $chooser);
}
/**
* Process the test bag
*
* @param Bag $bag
*
* @return bool true if the variant got executed, false otherwise
*/
private function handleTestBag(Bag $bag)
{
$test = $bag->getTest();
$isParticipating = $this->participationManager->participates($test->getIdentifier());
$testParticipation = $this->participationManager->getParticipatingVariant($test->getIdentifier());
// Check if the user is marked as "do not participate".
if ($isParticipating && null === $testParticipation) {
$this->dispatcher->dispatch('phpab.participation.blocked', [$this, $bag]);
return;
}
// When the user does not participate at the test, let him participate.
if (!$isParticipating && !$bag->getParticipationFilter()->shouldParticipate()) {
// The user should not participate so let's set participation
// to null so he will not participate in the future, too.
$this->dispatcher->dispatch('phpab.participation.block', [$this, $bag]);
$this->participationManager->participate($test->getIdentifier(), null);
return;
}
// Let's try to recover a previously stored Variant
if ($isParticipating && $testParticipation !== null) {
$variant = $bag->getTest()->getVariant($testParticipation);
// If we managed to identify a Variant by a previously stored participation, do its magic again.
if ($variant instanceof VariantInterface) {
$this->activateVariant($bag, $variant);
return;
}
}
// Choose a variant for later usage. If the user should participate this one will be used
$chosen = $bag->getVariantChooser()->chooseVariant($test->getVariants());
// Check if user participation should be blocked. Or maybe the variant does not exists anymore?
if (null === $chosen || !$test->getVariant($chosen->getIdentifier())) {
$this->dispatcher->dispatch('phpab.participation.variant_missing', [$this, $bag]);
$this->participationManager->participate($test->getIdentifier(), null);
return;
}
// Store the chosen variant so he will not switch between different states
$this->participationManager->participate($test->getIdentifier(), $chosen->getIdentifier());
$this->activateVariant($bag, $chosen);
}