使用类注册表
与许多类一样,使用类名作为键将行为添加到类注册表中,并且对于从类注册表加载的同一对象的后续请求。因此,模拟一个行为的方法就是在使用它之前把它放在类注册表中。
完整示例:
<?php
App::uses('AppModel', 'Model');
class Example extends AppModel {
}
class TestBehavior extends ModelBehavior {
public function foo() {
throw new \Exception('Real method called');
}
}
class BehaviorExampleTest extends CakeTestCase {
/**
* testNormalBehavior
*
* @expectedException Exception
* @expectedExceptionMessage Real method called
* @return void
*/
public function testNormalBehavior() {
$model = ClassRegistry::init('Example');
$model->Behaviors->attach('Test');
$this->assertInstanceOf('TestBehavior', $model->Behaviors->Test);
$this->assertSame('TestBehavior', get_class($model->Behaviors->Test));
$this->assertSame(['foo' => ['Test', 'foo']], $model->Behaviors->methods());
$model->foo();
}
public function testMockedBehavior() {
$mockedBehavior = $this->getMock('TestBehavior', ['foo', 'bar']);
ClassRegistry::addObject('TestBehavior', $mockedBehavior);
$model = ClassRegistry::init('Example');
$model->Behaviors->attach('Test');
$this->assertInstanceOf('TestBehavior', $model->Behaviors->Test);
$this->assertNotSame('TestBehavior', get_class($model->Behaviors->Test));
$expected = [
'foo' => ['Test', 'foo'],
'bar' => ['Test', 'bar'],
'expects' => ['Test', 'expects'], // noise, due to being a mock
'staticExpects' => ['Test', 'staticExpects'], // noise, due to being a mock
];
$this->assertSame($expected, $model->Behaviors->methods());
$model->foo(); // no exception thrown
$mockedBehavior
->expects($this->once())
->method('bar')
->will($this->returnValue('something special'));
$return = $model->bar();
$this->assertSame('something special', $return);
}
}