nestingLevel = 0; } public function tearDown() { while($this->nestingLevel > 0) { $this->nestingLevel--; Config::unnest(); } parent::tearDown(); } public function testCorrectlyInitialised() { $injector = Injector::inst(); $this->assertTrue($injector->getConfigLocator() instanceof SilverStripeServiceConfigurationLocator, 'Failure most likely because the injector has been referenced BEFORE being initialised in Core.php'); } public function testBasicInjector() { $injector = new Injector(); $injector->setAutoScanProperties(true); $config = array(array('src' => TEST_SERVICES . '/SampleService.php',)); $injector->load($config); $this->assertTrue($injector->hasService('SampleService') == 'SampleService'); $myObject = new TestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->sampleService), 'SampleService'); } public function testConfiguredInjector() { $injector = new Injector(); $services = array( array( 'src' => TEST_SERVICES . '/AnotherService.php', 'properties' => array('config_property' => 'Value'), ), array( 'src' => TEST_SERVICES . '/SampleService.php', ) ); $injector->load($services); $this->assertTrue($injector->hasService('SampleService') == 'SampleService'); // We expect a false because the 'AnotherService' is actually // just a replacement of the SampleService $this->assertTrue($injector->hasService('AnotherService') == 'AnotherService'); $item = $injector->get('AnotherService'); $this->assertEquals('Value', $item->config_property); } public function testIdToNameMap() { $injector = new Injector(); $services = array( 'FirstId' => 'AnotherService', 'SecondId' => 'SampleService', ); $injector->load($services); $this->assertTrue($injector->hasService('FirstId') == 'FirstId'); $this->assertTrue($injector->hasService('SecondId') == 'SecondId'); $this->assertTrue($injector->get('FirstId') instanceof AnotherService); $this->assertTrue($injector->get('SecondId') instanceof SampleService); } public function testReplaceService() { $injector = new Injector(); $injector->setAutoScanProperties(true); $config = array(array('src' => TEST_SERVICES . '/SampleService.php')); // load $injector->load($config); // inject $myObject = new TestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->sampleService), 'SampleService'); // also tests that ID can be the key in the array $config = array('SampleService' => array('src' => TEST_SERVICES . '/AnotherService.php')); // , 'id' => 'SampleService')); // load $injector->load($config); $injector->inject($myObject); $this->assertEquals('AnotherService', get_class($myObject->sampleService)); } public function testUpdateSpec() { $injector = new Injector(); $services = array( 'AnotherService' => array( 'src' => TEST_SERVICES . '/AnotherService.php', 'properties' => array( 'filters' => array( 'One', 'Two', ) ), ) ); $injector->load($services); $injector->updateSpec('AnotherService', 'filters', 'Three'); $another = $injector->get('AnotherService'); $this->assertEquals(3, count($another->filters)); $this->assertEquals('Three', $another->filters[2]); } public function testAutoSetInjector() { $injector = new Injector(); $injector->setAutoScanProperties(true); $injector->addAutoProperty('auto', 'somevalue'); $config = array(array('src' => TEST_SERVICES . '/SampleService.php',)); $injector->load($config); $this->assertTrue($injector->hasService('SampleService') == 'SampleService'); // We expect a false because the 'AnotherService' is actually // just a replacement of the SampleService $myObject = new TestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->sampleService), 'SampleService'); $this->assertEquals($myObject->auto, 'somevalue'); } public function testSettingSpecificProperty() { $injector = new Injector(); $config = array('AnotherService'); $injector->load($config); $injector->setInjectMapping('TestObject', 'sampleService', 'AnotherService'); $testObject = $injector->get('TestObject'); $this->assertEquals(get_class($testObject->sampleService), 'AnotherService'); } public function testSettingSpecificMethod() { $injector = new Injector(); $config = array('AnotherService'); $injector->load($config); $injector->setInjectMapping('TestObject', 'setSomething', 'AnotherService', 'method'); $testObject = $injector->get('TestObject'); $this->assertEquals(get_class($testObject->sampleService), 'AnotherService'); } public function testInjectingScopedService() { $injector = new Injector(); $config = array( 'AnotherService', 'AnotherService.DottedChild' => 'SampleService', ); $injector->load($config); $service = $injector->get('AnotherService.DottedChild'); $this->assertEquals(get_class($service), 'SampleService'); $service = $injector->get('AnotherService.Subset'); $this->assertEquals(get_class($service), 'AnotherService'); $injector->setInjectMapping('TestObject', 'sampleService', 'AnotherService.Geronimo'); $testObject = $injector->create('TestObject'); $this->assertEquals(get_class($testObject->sampleService), 'AnotherService'); $injector->setInjectMapping('TestObject', 'sampleService', 'AnotherService.DottedChild.AnotherDown'); $testObject = $injector->create('TestObject'); $this->assertEquals(get_class($testObject->sampleService), 'SampleService'); } public function testInjectUsingConstructor() { $injector = new Injector(); $config = array(array( 'src' => TEST_SERVICES . '/SampleService.php', 'constructor' => array( 'val1', 'val2', ) )); $injector->load($config); $sample = $injector->get('SampleService'); $this->assertEquals($sample->constructorVarOne, 'val1'); $this->assertEquals($sample->constructorVarTwo, 'val2'); $injector = new Injector(); $config = array( 'AnotherService', array( 'src' => TEST_SERVICES . '/SampleService.php', 'constructor' => array( 'val1', '%$AnotherService', ) ) ); $injector->load($config); $sample = $injector->get('SampleService'); $this->assertEquals($sample->constructorVarOne, 'val1'); $this->assertEquals(get_class($sample->constructorVarTwo), 'AnotherService'); $injector = new Injector(); $config = array(array( 'src' => TEST_SERVICES . '/SampleService.php', 'constructor' => array( 'val1', 'val2', ) )); $injector->load($config); $sample = $injector->get('SampleService'); $this->assertEquals($sample->constructorVarOne, 'val1'); $this->assertEquals($sample->constructorVarTwo, 'val2'); // test constructors on prototype $injector = new Injector(); $config = array(array( 'type' => 'prototype', 'src' => TEST_SERVICES . '/SampleService.php', 'constructor' => array( 'val1', 'val2', ) )); $injector->load($config); $sample = $injector->get('SampleService'); $this->assertEquals($sample->constructorVarOne, 'val1'); $this->assertEquals($sample->constructorVarTwo, 'val2'); $again = $injector->get('SampleService'); $this->assertFalse($sample === $again); $this->assertEquals($sample->constructorVarOne, 'val1'); $this->assertEquals($sample->constructorVarTwo, 'val2'); } public function testInjectUsingSetter() { $injector = new Injector(); $injector->setAutoScanProperties(true); $config = array(array('src' => TEST_SERVICES . '/SampleService.php',)); $injector->load($config); $this->assertTrue($injector->hasService('SampleService') == 'SampleService'); $myObject = new OtherTestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->s()), 'SampleService'); // and again because it goes down a different code path when setting things // based on the inject map $myObject = new OtherTestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->s()), 'SampleService'); } // make sure we can just get any arbitrary object - it should be created for us public function testInstantiateAnObjectViaGet() { $injector = new Injector(); $injector->setAutoScanProperties(true); $config = array(array('src' => TEST_SERVICES . '/SampleService.php',)); $injector->load($config); $this->assertTrue($injector->hasService('SampleService') == 'SampleService'); $myObject = $injector->get('OtherTestObject'); $this->assertEquals(get_class($myObject->s()), 'SampleService'); // and again because it goes down a different code path when setting things // based on the inject map $myObject = $injector->get('OtherTestObject'); $this->assertEquals(get_class($myObject->s()), 'SampleService'); } public function testCircularReference() { $services = array('CircularOne', 'CircularTwo'); $injector = new Injector($services); $injector->setAutoScanProperties(true); $obj = $injector->get('NeedsBothCirculars'); $this->assertTrue($obj->circularOne instanceof CircularOne); $this->assertTrue($obj->circularTwo instanceof CircularTwo); } public function testPrototypeObjects() { $services = array('CircularOne', 'CircularTwo', array('class' => 'NeedsBothCirculars', 'type' => 'prototype')); $injector = new Injector($services); $injector->setAutoScanProperties(true); $obj1 = $injector->get('NeedsBothCirculars'); $obj2 = $injector->get('NeedsBothCirculars'); // if this was the same object, then $obj1->var would now be two $obj1->var = 'one'; $obj2->var = 'two'; $this->assertTrue($obj1->circularOne instanceof CircularOne); $this->assertTrue($obj1->circularTwo instanceof CircularTwo); $this->assertEquals($obj1->circularOne, $obj2->circularOne); $this->assertNotEquals($obj1, $obj2); } public function testSimpleInstantiation() { $services = array('CircularOne', 'CircularTwo'); $injector = new Injector($services); // similar to the above, but explicitly instantiating this object here $obj1 = $injector->create('NeedsBothCirculars'); $obj2 = $injector->create('NeedsBothCirculars'); // if this was the same object, then $obj1->var would now be two $obj1->var = 'one'; $obj2->var = 'two'; $this->assertEquals($obj1->circularOne, $obj2->circularOne); $this->assertNotEquals($obj1, $obj2); } public function testCreateWithConstructor() { $injector = new Injector(); $obj = $injector->create('CircularTwo', 'param'); $this->assertEquals($obj->otherVar, 'param'); } public function testSimpleSingleton() { $injector = new Injector(); $one = $injector->create('CircularOne'); $two = $injector->create('CircularOne'); $this->assertFalse($one === $two); $one = $injector->get('CircularTwo'); $two = $injector->get('CircularTwo'); $this->assertTrue($one === $two); } public function testOverridePriority() { $injector = new Injector(); $injector->setAutoScanProperties(true); $config = array( array( 'src' => TEST_SERVICES . '/SampleService.php', 'priority' => 10, ) ); // load $injector->load($config); // inject $myObject = new TestObject(); $injector->inject($myObject); $this->assertEquals(get_class($myObject->sampleService), 'SampleService'); $config = array( array( 'src' => TEST_SERVICES . '/AnotherService.php', 'id' => 'SampleService', 'priority' => 1, ) ); // load $injector->load($config); $injector->inject($myObject); $this->assertEquals('SampleService', get_class($myObject->sampleService)); } /** * Specific test method to illustrate various ways of setting a requirements backend */ public function testRequirementsSettingOptions() { $injector = new Injector(); $config = array( 'OriginalRequirementsBackend', 'NewRequirementsBackend', 'DummyRequirements' => array( 'constructor' => array( '%$OriginalRequirementsBackend' ) ) ); $injector->load($config); $requirements = $injector->get('DummyRequirements'); $this->assertEquals('OriginalRequirementsBackend', get_class($requirements->backend)); // just overriding the definition here $injector->load(array( 'DummyRequirements' => array( 'constructor' => array( '%$NewRequirementsBackend' ) ) )); // requirements should have been reinstantiated with the new bean setting $requirements = $injector->get('DummyRequirements'); $this->assertEquals('NewRequirementsBackend', get_class($requirements->backend)); } /** * disabled for now */ public function testStaticInjections() { $injector = new Injector(); $config = array( 'NewRequirementsBackend', ); $injector->load($config); $si = $injector->get('TestStaticInjections'); $this->assertEquals('NewRequirementsBackend', get_class($si->backend)); } public function testSetterInjections() { $injector = new Injector(); $config = array( 'NewRequirementsBackend', ); $injector->load($config); $si = $injector->get('TestSetterInjections'); $this->assertEquals('NewRequirementsBackend', get_class($si->getBackend())); } public function testCustomObjectCreator() { $injector = new Injector(); $injector->setObjectCreator(new SSObjectCreator($injector)); $config = array( 'OriginalRequirementsBackend', 'DummyRequirements' => array( 'class' => 'DummyRequirements(\'%$OriginalRequirementsBackend\')' ) ); $injector->load($config); $requirements = $injector->get('DummyRequirements'); $this->assertEquals('OriginalRequirementsBackend', get_class($requirements->backend)); } public function testInheritedConfig() { // Test that child class does not automatically inherit config $injector = new Injector(array('locator' => 'SilverStripe\\Core\\Injector\\SilverStripeServiceConfigurationLocator')); Config::inst()->update('SilverStripe\\Core\\Injector\\Injector', 'MyParentClass', [ 'properties' => ['one' => 'the one'], 'class' => 'MyParentClass', ]); $obj = $injector->get('MyParentClass'); $this->assertInstanceOf('MyParentClass', $obj); $this->assertEquals($obj->one, 'the one'); // Class isn't inherited and parent properties are ignored $obj = $injector->get('MyChildClass'); $this->assertInstanceOf('MyChildClass', $obj); $this->assertNotEquals($obj->one, 'the one'); // Set child class as alias $injector = new Injector(array('locator' => 'SilverStripe\\Core\\Injector\\SilverStripeServiceConfigurationLocator')); Config::inst()->update('SilverStripe\\Core\\Injector\\Injector', 'MyChildClass', '%$MyParentClass'); // Class isn't inherited and parent properties are ignored $obj = $injector->get('MyChildClass'); $this->assertInstanceOf('MyParentClass', $obj); $this->assertEquals($obj->one, 'the one'); } public function testSameNamedSingeltonPrototype() { $injector = new Injector(); // get a singleton object $object = $injector->get('NeedsBothCirculars'); $object->var = 'One'; $again = $injector->get('NeedsBothCirculars'); $this->assertEquals($again->var, 'One'); // create a NEW instance object $new = $injector->create('NeedsBothCirculars'); $this->assertNull($new->var); // this will trigger a problem below $new->var = 'Two'; $again = $injector->get('NeedsBothCirculars'); $this->assertEquals($again->var, 'One'); } public function testConvertServicePropertyOnCreate() { // make sure convert service property is not called on direct calls to create, only on configured // declarations to avoid un-needed function calls $injector = new Injector(); $item = $injector->create('ConstructableObject', '%$TestObject'); $this->assertEquals('%$TestObject', $item->property); // do it again but have test object configured as a constructor dependency $injector = new Injector(); $config = array( 'ConstructableObject' => array( 'constructor' => array( '%$TestObject' ) ) ); $injector->load($config); $item = $injector->get('ConstructableObject'); $this->assertTrue($item->property instanceof TestObject); // and with a configured object defining TestObject to be something else! $injector = new Injector(array('locator' => 'InjectorTestConfigLocator')); $config = array( 'ConstructableObject' => array( 'constructor' => array( '%$TestObject' ) ), ); $injector->load($config); $item = $injector->get('ConstructableObject'); $this->assertTrue($item->property instanceof ConstructableObject); $this->assertInstanceOf('OtherTestObject', $item->property->property); } public function testNamedServices() { $injector = new Injector(); $service = new stdClass(); $injector->registerService($service, 'NamedService'); $this->assertEquals($service, $injector->get('NamedService')); } public function testCreateConfiggedObjectWithCustomConstructorArgs() { // need to make sure that even if the config defines some constructor params, // that we take our passed in constructor args instead $injector = new Injector(array('locator' => 'InjectorTestConfigLocator')); $item = $injector->create('ConfigConstructor', 'othervalue'); $this->assertEquals($item->property, 'othervalue'); } /** * Tests creating a service with a custom factory. */ public function testCustomFactory() { $injector = new Injector(array( 'service' => array('factory' => 'factory', 'constructor' => array(1, 2, 3)) )); $factory = $this->getMock('SilverStripe\\Core\\Injector\\Factory'); $factory ->expects($this->once()) ->method('create') ->with($this->equalTo('service'), $this->equalTo(array(1, 2, 3))) ->will($this->returnCallback(function($args) { return new TestObject(); })); $injector->registerService($factory, 'factory'); $this->assertInstanceOf('TestObject', $injector->get('service')); } public function testMethods() { // do it again but have test object configured as a constructor dependency $injector = new Injector(); $config = array( 'A' => array( 'class' => 'TestObject', ), 'B' => array( 'class' => 'TestObject', ), 'TestService' => array( 'class' => 'TestObject', 'calls' => array( array('myMethod', array('%$A')), array('myMethod', array('%$B')), array('noArgMethod') ) ) ); $injector->load($config); $item = $injector->get('TestService'); $this->assertTrue($item instanceof TestObject); $this->assertEquals( array($injector->get('A'), $injector->get('B'), 'noArgMethod called'), $item->methodCalls ); } /** * @expectedException InvalidArgumentException */ public function testNonExistentMethods() { $injector = new Injector(); $config = array( 'TestService' => array( 'class' => 'TestObject', 'calls' => array( array('thisDoesntExist') ) ) ); $injector->load($config); $item = $injector->get('TestService'); } /** * @expectedException InvalidArgumentException */ public function testProtectedMethods() { $injector = new Injector(); $config = array( 'TestService' => array( 'class' => 'TestObject', 'calls' => array( array('protectedMethod') ) ) ); $injector->load($config); $item = $injector->get('TestService'); } /** * @expectedException InvalidArgumentException */ public function testTooManyArrayValues() { $injector = new Injector(); $config = array( 'TestService' => array( 'class' => 'TestObject', 'calls' => array( array('method', array('args'), 'what is this?') ) ) ); $injector->load($config); $item = $injector->get('TestService'); } /** * Test nesting of injector */ public function testNest() { // Outer nest to avoid interference with other Injector::nest(); $this->nestingLevel++; // Test services $config = array( 'NewRequirementsBackend', ); Injector::inst()->load($config); $si = Injector::inst()->get('TestStaticInjections'); $this->assertInstanceOf('TestStaticInjections', $si); $this->assertInstanceOf('NewRequirementsBackend', $si->backend); $this->assertInstanceOf('MyParentClass', Injector::inst()->get('MyParentClass')); $this->assertInstanceOf('MyChildClass', Injector::inst()->get('MyChildClass')); // Test that nested injector values can be overridden Injector::nest(); $this->nestingLevel++; Injector::inst()->unregisterAllObjects(); $newsi = Injector::inst()->get('TestStaticInjections'); $newsi->backend = new OriginalRequirementsBackend(); Injector::inst()->registerService($newsi, 'TestStaticInjections'); Injector::inst()->registerService(new MyChildClass(), 'MyParentClass'); // Check that these overridden values are retrievable $si = Injector::inst()->get('TestStaticInjections'); $this->assertInstanceOf('TestStaticInjections', $si); $this->assertInstanceOf('OriginalRequirementsBackend', $si->backend); $this->assertInstanceOf('MyParentClass', Injector::inst()->get('MyParentClass')); $this->assertInstanceOf('MyParentClass', Injector::inst()->get('MyChildClass')); // Test that unnesting restores expected behaviour Injector::unnest(); $this->nestingLevel--; $si = Injector::inst()->get('TestStaticInjections'); $this->assertInstanceOf('TestStaticInjections', $si); $this->assertInstanceOf('NewRequirementsBackend', $si->backend); $this->assertInstanceOf('MyParentClass', Injector::inst()->get('MyParentClass')); $this->assertInstanceOf('MyChildClass', Injector::inst()->get('MyChildClass')); // Test reset of cache Injector::inst()->unregisterAllObjects(); $si = Injector::inst()->get('TestStaticInjections'); $this->assertInstanceOf('TestStaticInjections', $si); $this->assertInstanceOf('NewRequirementsBackend', $si->backend); $this->assertInstanceOf('MyParentClass', Injector::inst()->get('MyParentClass')); $this->assertInstanceOf('MyChildClass', Injector::inst()->get('MyChildClass')); // Return to nestingLevel 0 Injector::unnest(); $this->nestingLevel--; } } class InjectorTestConfigLocator extends SilverStripeServiceConfigurationLocator implements TestOnly { protected function configFor($name) { switch($name) { case 'TestObject': return $this->configs[$name] = array( 'class' => 'ConstructableObject', 'constructor' => array('%$OtherTestObject') ); case 'ConfigConstructor': return $this->configs[$name] = array( 'class' => 'ConstructableObject', 'constructor' => array('value') ); } return parent::configFor($name); } } class ConstructableObject implements TestOnly { public $property; public function __construct($prop) { $this->property = $prop; } } class TestObject implements TestOnly { public $sampleService; public $methodCalls = array(); public function setSomething($v) { $this->sampleService = $v; } public function myMethod($arg) { $this->methodCalls[] = $arg; } public function noArgMethod() { $this->methodCalls[] = 'noArgMethod called'; } protected function protectedMethod() { $this->methodCalls[] = 'protectedMethod called'; } } class OtherTestObject implements TestOnly { private $sampleService; public function setSampleService($s) { $this->sampleService = $s; } public function s() { return $this->sampleService; } } class CircularOne implements TestOnly { public $circularTwo; } class CircularTwo implements TestOnly { public $circularOne; public $otherVar; public function __construct($value = null) { $this->otherVar = $value; } } class NeedsBothCirculars implements TestOnly{ public $circularOne; public $circularTwo; public $var; } class MyParentClass implements TestOnly { public $one; } class MyChildClass extends MyParentClass implements TestOnly { } class MyGrandChildClass extends MyChildClass implements TestOnly { } class MyGreatGrandChildClass extends MyGrandChildClass implements TestOnly { } class DummyRequirements implements TestOnly { public $backend; public function __construct($backend) { $this->backend = $backend; } public function setBackend($backend) { $this->backend = $backend; } } class OriginalRequirementsBackend implements TestOnly { } class NewRequirementsBackend implements TestOnly { } class TestStaticInjections implements TestOnly { public $backend; /** @config */ private static $dependencies = array( 'backend' => '%$NewRequirementsBackend' ); } /** * Make sure DI works with ViewableData's implementation of __isset */ class TestSetterInjections extends ViewableData implements TestOnly { protected $backend; /** @config */ private static $dependencies = array( 'backend' => '%$NewRequirementsBackend' ); public function getBackend() { return $this->backend; } public function setBackend($backend) { $this->backend = $backend; } } /** * An example object creator that uses the SilverStripe class(arguments) mechanism for * creating new objects * * @see https://github.com/silverstripe/sapphire */ class SSObjectCreator extends InjectionCreator { private $injector; public function __construct($injector) { $this->injector = $injector; } public function create($class, array $params = array()) { if (strpos($class, '(') === false) { return parent::create($class, $params); } else { list($class, $params) = Object::parse_class_spec($class); $params = $this->injector->convertServiceProperty($params); return parent::create($class, $params); } } }