symfony 4表格单元测试不工作

Question

嗨，我在试着用symfony 4测试表单。这是我的代码，

$crawler = $this->client->request('GET', '/admin/user/new');

        $form = $crawler->selectButton('Save')->form(array(
            'user[displayName]' => 'user',
            'user[username]' => 'user@yahoo.com',
            'user[password]' => 'user123',
            'user[phoneNumber]' => '1234789',
            'user[roles]' => 'ROLE_USER',
        ));
        $crawler = $this->client->submit($form);
        $this->assertGreaterThan(
                0, $crawler->filter('html:contains("Your changes were saved!")')->count()
        );

表单有价值，但我得到的只是，

断言0大于0的断言失败。

当实际提交时，我会收到这个警告。

<div class="alert alert-success alert-dismissible">
    Your changes were saved!
</div>

如果有人能帮上忙

Answer 1

似乎需要遵循重定向，因为表单提交总是被重定向。

$crawler = $this->client->request('GET', '/admin/user/new');

        $form = $crawler->selectButton('Save')->form(array(
            'user[displayName]' => 'user',
            'user[username]' => 'user@yahoo.com',
            'user[password]' => 'user123',
            'user[phoneNumber]' => '1234789',
            'user[roles]' => 'ROLE_USER',
        ));
        $crawler = $this->client->submit($form);

        $crawler = $this->client->followRedirect();

        $this->assertGreaterThan(
                0, $crawler->filter('html:contains("Your changes were saved!")')->count()
        );