public function testReplace() {
$array = array();
$array['name'] = 'jack';
$array['foo.bar'] = 'beep';
$this->bag
->replace($array);
$this
->assertEquals($array, $this->bag
->all());
$this
->assertNull($this->bag
->get('hello'));
$this
->assertNull($this->bag
->get('always'));
$this
->assertNull($this->bag
->get('user.login'));
}