Question

我收到以下错误：

Capybara::ElementNotFound: Unable to find field "username"
./spec/controllers/sessions_controller_spec.rb:10:in `block (3 levels) in <top (required)>'

规格：

require 'spec_helper'

describe SessionsController do
  before :each do
    @user = FactoryGirl.create(:user)
  end
  context 'creating a new session' do
    it 'can set the current_user variable to the logged user' do
      visit '/login'
      fill_in 'username', with: 'gabrielhilal' #I have tried `Username` as well
      fill_in 'password', with: 'secret'
      click_button 'Login'
      current_user.should == @user
      current_user.username.should == 'gabrielhilal'
    end
  end
  context 'destroying existing session' do
    xit 'can destroy the current_user' do
    end
  end
end

但我的格式为username字段：

<form accept-charset="UTF-8" action="/sessions" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="&#x2713;" / <input name="authenticity_token" type="hidden" value="x7ORLDIvq1BXr8SOkd/Zla9Pl5R5tBXAtyflCpTGCtY=" /></div>
  <div class="field">
    <label for="username">Username</label>
    <input id="username" name="username" type="text" />
  </div>
  <div class="field">
    <label for="password">Password</label>
    <input id="password" name="password" type="password" />
  </div>
  <div class="actions">
    <input name="commit" type="submit" value="Login" />
  </div>
</form>

我使用cucumber进行了类似的测试并且正在通过，这确认字段username在那里：When to switch from cucumber to rspec in the BDD cycle for a login procedure

有什么想法吗？

编辑 - 我添加了save_and_open_page，这给了我一个空白页面。 puts "#{page.html.inspect}"也会返回empity。

""

Capybara::ElementNotFound: Unable to find field "username"
./spec/controllers/sessions_controller_spec.rb:12:in `block (3 levels) in <top (required)>'

Answer 1

您可以使用以下终端进行调试：

it {puts page.body}

看看是否有“用户名”输入。但我认为第一步visit '/login'

上存在问题

Answer 2

我知道你已经回答了你自己的问题（有点），但我觉得有必要告诉你，你所提供的例子是控制器和请求规范的混合...

从RSpec - Controller Specs逐字引用： Note: To encourage more isolated testing, views are not rendered by default in controller specs.

主要区别（在RSpec解释它是什么样的规范的方式）是行：describe SessionsController do。

使其与RSpec和测试最佳实践保持一致：

将规范移至spec/requests
将描述更改为describe "SessionsController" do
删除render_views

你的规格应该运行得很好......

查看RSpec - Request Specs我的意思。我还会查看betterspecs.org有关改进测试的方法。

Answer 3

我意识到我必须明确告诉我的控制器渲染视图。我在rspec readme中找到了它，因此我解决了添加render_views的问题。

describe SessionsController do
  render_views #this line solved the problem
  before :each do
    user = FactoryGirl.create(:user)
  end
...

Answer 4

就我而言，只需删除form: FormGroup; ngOnInit() { const formControls = { field: new FormControl('', Validators.required) }; formControls.field.valueChanges.subscribe(() => { const value = formControls.field.value; // TODO: perform action based on value }); this.form = this.formBuilder.group(formControls); }中的block_unknow_urls：

features/support/env.rb

Capybara :: ElementNotFound，但它就在那里

4 个答案: