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<?php
namespace Guzzle\Tests\Plugin\Backoff;
use Guzzle\Http\Message\Request;
use Guzzle\Plugin\Backoff\TruncatedBackoffStrategy;
use Guzzle\Plugin\Backoff\CallbackBackoffStrategy;
/**
* @covers Guzzle\Plugin\Backoff\AbstractBackoffStrategy
*/
class AbstractBackoffStrategyTest extends \Guzzle\Tests\GuzzleTestCase
{
protected function getMockStrategy()
{
return $this->getMockBuilder('Guzzle\Plugin\Backoff\AbstractBackoffStrategy')
->setMethods(array('getDelay', 'makesDecision'))
->getMockForAbstractClass();
}
public function testReturnsZeroWhenNoNextAndGotNull()
{
$request = new Request('GET', 'http://www.foo.com');
$mock = $this->getMockStrategy();
$mock->expects($this->atLeastOnce())->method('getDelay')->will($this->returnValue(null));
$this->assertEquals(0, $mock->getBackoffPeriod(0, $request));
}
public function testReturnsFalse()
{
$request = new Request('GET', 'http://www.foo.com');
$mock = $this->getMockStrategy();
$mock->expects($this->atLeastOnce())->method('getDelay')->will($this->returnValue(false));
$this->assertEquals(false, $mock->getBackoffPeriod(0, $request));
}
public function testReturnsNextValueWhenNullOrTrue()
{
$request = new Request('GET', 'http://www.foo.com');
$mock = $this->getMockStrategy();
$mock->expects($this->atLeastOnce())->method('getDelay')->will($this->returnValue(null));
$mock->expects($this->any())->method('makesDecision')->will($this->returnValue(false));
$mock2 = $this->getMockStrategy();
$mock2->expects($this->atLeastOnce())->method('getDelay')->will($this->returnValue(10));
$mock2->expects($this->atLeastOnce())->method('makesDecision')->will($this->returnValue(true));
$mock->setNext($mock2);
$this->assertEquals(10, $mock->getBackoffPeriod(0, $request));
}
public function testReturnsFalseWhenNullAndNoNext()
{
$request = new Request('GET', 'http://www.foo.com');
$s = new TruncatedBackoffStrategy(2);
$this->assertFalse($s->getBackoffPeriod(0, $request));
}
public function testHasNext()
{
$a = new TruncatedBackoffStrategy(2);
$b = new TruncatedBackoffStrategy(2);
$a->setNext($b);
$this->assertSame($b, $a->getNext());
}
public function testSkipsOtherDecisionsInChainWhenOneReturnsTrue()
{
$a = new CallbackBackoffStrategy(function () { return null; }, true);
$b = new CallbackBackoffStrategy(function () { return true; }, true);
$c = new CallbackBackoffStrategy(function () { return null; }, true);
$d = new CallbackBackoffStrategy(function () { return 10; }, false);
$a->setNext($b);
$b->setNext($c);
$c->setNext($d);
$this->assertEquals(10, $a->getBackoffPeriod(2, new Request('GET', 'http://www.foo.com')));
}
public function testReturnsZeroWhenDecisionMakerReturnsTrueButNoFurtherStrategiesAreInTheChain()
{
$a = new CallbackBackoffStrategy(function () { return null; }, true);
$b = new CallbackBackoffStrategy(function () { return true; }, true);
$a->setNext($b);
$this->assertSame(0, $a->getBackoffPeriod(2, new Request('GET', 'http://www.foo.com')));
}
}
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