获取状态419运行phpunit测试

Question

我有一个奇怪的问题，我完全不明白。我正在进行测试，但是我得到了419

$member = factory(User::class)->create([ 'type' => 'member' ]);
$title = "Random Title for Test.";
$case = factory(DentalCase::class)->raw(['title' => $title]);

$response = $this->actingAs($member)->post('/cases/create', $case);

$response->assertStatus(302);
$this->assertDatabaseHas('cases', ['title' => $title,]);

错误回复：Response status code [419] is not a successful status code.