public function testReturnValue()
{
$e = new Event(null, 'test');
$this->assertNull($e->getReturnValue());
$this->assertEquals('default', $e->getReturnValue('default'));
$e->setReturnValue('foo');
$this->assertEquals('foo', $e->getReturnValue());
$this->assertEquals('foo', $e->getReturnValue('default'));
$e->setReturnValue(null);
$this->assertNull($e->getReturnValue());
$this->assertNull($e->getReturnValue('default'));
$e->clearReturnValue();
$this->assertNull($e->getReturnValue());
$this->assertEquals('default', $e->getReturnValue('default'));
}
