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Stubbing and Mocking Static Methods with PHPUnit

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PHPUnit has ability to stub and mock static methods. Consider the class Foo : <?php class Foo { public static function doSomething() { return static::helper(); } public static function helper() { return 'foo'; } } ?> To test the static helper() function with PHPUnit, you can write you test like that: <?php class FooTest extends PHPUnit_Framework_TestCase { public function testDoSomething() { $class = $this->getMockClass( 'Foo', /* name of class to mock */ array('helper') /* list of methods to mock */ ); $class::staticExpects($this->any()) ->method('helper') ->will($this->returnValue('bar')); $this->assertEquals( 'bar', $class::doSomething() ); } } ?> The new staticExpects() method works similar to the non-static expects...
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MongoDB: Remove an Arbiter From a Replica Set

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Removing an arbiter from MongoDB Replica Set can be quite tricky, and official MongoDB documentation does not say it directly how to do it. I assume that you have auth enabled (just like I have), so lets start with connecting to your ReplicaSet "repl" master as an administrator: mongo mongo.domain.com/admin -u admin -p pass You will see the following prompt: repl:PRIMARY> Type in conf=rs.conf() repl:PRIMARY> conf = rs.conf() { "_id" : "repl", "version" : 8, "members" : [ { "_id" : 0, "host" : "mongo.server.com:27017", "priority" : 2 }, { "_id" : 1, "host" : "mongo1.server.com:27017" }, { "_id" : 2, "host" : "arbiter.server.com:27017", "arbiterOnly" : true }, { "_id" : 3, "host" : "mongo2.server.com:27017" } ] } Now lets adjus...
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Use 16GB SSD for Swap on Amazon Linux c3.large Instance

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Amazon announced new generation C3 instance types , which are compute optimized instances, available in 5 sizes: c3.large, c3.xlarge, c3.2xlarge, c3.4xlarge and c3.8xlarge with 2, 4, 8, 16 and 32 vCPUs respectively. C3 instances will provide you with the highest performance processors and the lowest price/compute performance compared to all other Amazon EC2 instances. C3 instances also feature Enhanced Networking and SSD-based instance storage . For C3 Instances, each vCPU is a hardware hyperthread from 2.8 GHz Intel Xeon E5-2680v2 (Ivy Bridge) processors. Setting up c3.large instance with SSDs When setting up instance, make sure you add both Instance Store volumes. Its up to you how you like to set up your root storage, For this example I opted for 16GB, 480 provisioned IOPS (you need to maintain 30:1 ratio): Testing the SSD speed Once set up and server launched, we can use 2nd 16GB SSD (mounted on /dev/sdc) for swap on new Amazon Linux instance c3.large # Tes...
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