public function testBasic()
{
$sender = new \stdClass();
$event = new Event($sender, ['a' => 'b', 'c' => 'd']);
$this->assertFalse($event->isDefaultPrevented());
$event->preventDefault();
$this->assertTrue($event->isDefaultPrevented());
$this->assertTrue($event->hasParam('a'));
$this->assertTrue($event->hasParam('c'));
$this->assertEquals('b', $event->getParam('a'));
$this->assertEquals('d', $event->getParam('c'));
}
