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Add support for optional automatic retries upon aborted transactions.

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This commit is contained in:
Daniele Alessandri
2010-12-31 16:07:48 +01:00
parent 34f4d5584b
commit e3dd311dd3
2 changed files with 121 additions and 38 deletions
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test/PredisClientFeatures.php
+70 -1
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@@ -637,11 +637,60 @@ class PredisClientFeaturesTestSuite extends PHPUnit_Framework_TestCase {
$this->assertEquals(array(true, array('bar', 'bar')), $replies);
}
function testMultiExecBlock_RetryOnServerAbort() {
$client1 = RC::getConnection();
$client2 = RC::getConnection(true);
$client1->flushdb();
$retry = 3;
$attempts = 0;
RC::testForAbortedMultiExecException($this, function()
use($client1, $client2, $retry, &$attempts) {
$options = array('watch' => 'sentinel', 'retry' => $retry);
$client1->multiExec($options, function($tx)
use ($client2, &$attempts) {
$attempts++;
$tx->set('sentinel', 'client1');
$tx->get('sentinel');
$client2->set('sentinel', 'client2');
});
});
$this->assertEquals('client2', $client1->get('sentinel'));
$this->assertEquals($retry + 1, $attempts);
$retry = 3;
$attempts = 0;
RC::testForAbortedMultiExecException($this, function()
use($client1, $client2, $retry, &$attempts) {
$options = array(
'watch' => 'sentinel',
'cas' => true,
'retry' => $retry
);
$client1->multiExec($options, function($tx)
use ($client2, &$attempts) {
$attempts++;
$tx->incr('attempts');
$tx->multi();
$tx->set('sentinel', 'client1');
$tx->get('sentinel');
$client2->set('sentinel', 'client2');
});
});
$this->assertEquals('client2', $client1->get('sentinel'));
$this->assertEquals($retry + 1, $attempts);
$this->assertEquals($attempts, $client1->get('attempts'));
}
function testMultiExecBlock_CheckAndSet_Discard() {
$client = RC::getConnection();
$client->flushdb();
$client->set('foo', 'bar');
$client->set('foo', 'bar');
$options = array('watch' => 'foo', 'cas' => true);
$replies = $client->multiExec($options, function($tx) {
$tx->watch('foobar');
@@ -653,6 +702,26 @@ class PredisClientFeaturesTestSuite extends PHPUnit_Framework_TestCase {
});
$this->assertType('array', $replies);
$this->assertEquals(array(array('bar', null)), $replies);
$hijack = true;
$client->set('foo', 'bar');
$client2 = RC::getConnection(true);
$options = array('watch' => 'foo', 'cas' => true, 'retry' => 1);
$replies = $client->multiExec($options, function($tx)
use ($client2, &$hijack) {
$foo = $tx->get('foo');
$tx->multi();
$tx->set('foobar', $foo);
$tx->discard();
if ($hijack) {
$hijack = false;
$client2->set('foo', 'hijacked!');
}
$tx->mget('foo', 'foobar');
});
$this->assertType('array', $replies);
$this->assertEquals(array(array('hijacked!', null)), $replies);
}
}
?>