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FallbackMailer: shuffle mailers with given probability #35

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FallbackMailer: shuffle mailers with given probability #35

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10 changes: 8 additions & 2 deletions src/Mail/FallbackMailer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -31,10 +31,16 @@ class FallbackMailer implements IMailer

/**
* @param IMailer[]
* @param int $retryWaitTime in miliseconds
* @param int
* @param int $retryWaitTime in miliseconds
* @param float $shuffleProbability probability that mailers will be shuffled
*/
public function __construct(array $mailers, int $retryCount = 3, int $retryWaitTime = 1000)
public function __construct(array $mailers, int $retryCount = 3, int $retryWaitTime = 1000, float $shuffleProbability = 0.0)
{
if ($shuffleProbability > 0.0 && mt_rand() / mt_getrandmax() < $shuffleProbability) {
shuffle($mailers);
}

$this->mailers = $mailers;
$this->retryCount = $retryCount;
$this->retryWaitTime = $retryWaitTime;
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15 changes: 15 additions & 0 deletions tests/Mail/FallbackMailer.phpt
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Expand Up @@ -84,3 +84,18 @@ test(function () {
$mailer->send(new Message);
Assert::null($onFailureCalls);
});


test(function () {
$subMailerA = new FailingMailer(0);
$subMailerB = new FailingMailer(1);

mt_srand(5);
$mailer = new FallbackMailer([$subMailerA, $subMailerB], 3, 10, 0.5);
$mailer->onFailure[] = function (FallbackMailer $sender, SendException $e, IMailer $mailer, Message $mail) use (&$onFailureCalls) {
$onFailureCalls[] = $mailer;
};

$mailer->send(new Message);
Assert::same([$subMailerB], $onFailureCalls);
});