Run PHPUnit Tests in Certain Order

Question

Is there a way to get the tests inside of a TestCase to run in a certain order? For example, I want to separate the life cycle of an object from creation to use to destruction but I need to make sure that the object is set up first before I run the other tests.

Answer 1

PHPUnit supports test dependencies via the @depends annotation.

Here is an example from the documentation where tests will be run in an order that satisfies dependencies, with each dependent test passing an argument to the next:

class StackTest extends PHPUnit_Framework_TestCase {     public function testEmpty()     {         $stack = array();         $this->assertEmpty($stack);          return $stack;     }      /**      * @depends testEmpty      */     public function testPush(array $stack)     {         array_push($stack, 'foo');         $this->assertEquals('foo', $stack[count($stack)-1]);         $this->assertNotEmpty($stack);          return $stack;     }      /**      * @depends testPush      */     public function testPop(array $stack)     {         $this->assertEquals('foo', array_pop($stack));         $this->assertEmpty($stack);     } } 

However, it's important to note that tests with unresolved dependencies will not be executed (desirable, as this brings attention quickly to the failing test). So, it's important to pay close attention when using dependencies.

Answer 2

Maybe there is a design problem in your tests.

Usually each test must not depend on any other tests, so they can run in any order.

Each test needs to instantiate and destroy everything it needs to run, that would be the perfect approach, you should never share objects and states between tests.

Can you be more specific about why you need the same object for N tests?