我的测试中出现assert_template错误。无论如何，assert_template是什么样的测试？

Question

这是我的测试，类似于Hartl教程中的邮件测试：

  test "valid signup information with account activation" do
    get new_user_path
    assert_difference 'User.count', 1 do
      post users_path, user: { username:  "Jwan622",
                               first_name: "Jeffrey",
                               last_name: "Wan",
                               email: "Jwan622@yahoo.com",
                               password:              "password",
                               password_confirmation: "password",
                               city: "New York City",
                               state: "New York",
                               country: "United States"
                              }
    end
    assert_equal 1, ActionMailer::Base.deliveries.size
    user = assigns(:user)
    assert_not user.activated?
    log_in_as(user)
    assert_not is_logged_in?
    # Invalid activation token
    get edit_account_activation_path("invalid token")
    assert_not is_logged_in?
    # Valid token, wrong email
    get edit_account_activation_path(user.activation_token, email: 'wrong')
    assert_not is_logged_in?
    # Valid activation token
    get edit_account_activation_path(user.activation_token, email: user.email)
    assert user.reload.activated?
    follow_redirect!
    assert_template 'root_path'
    assert is_logged_in?
end

这是我的错误消息：

1) Failure:
UserSignupTest#test_valid_signup_information_with_account_activation [/Users/Jwan/Dropbox/Turing/projects/FlyAwayFromHere/test/integration/user_signup_test.rb:94]:
expecting <"root_path"> but rendering with <["layouts/_praise_bar", "layouts/_city_change", "planners/new", "layouts/_nav_bar", "layouts/_footer_bar", "layouts/application"]>

问题：
1）什么样的测试是assert_template？它是最小的吗？水豚？
2）得到什么样的方法？它是一种在轨道上工作的机架方法吗？ 3）＆＃34;分配什么＆＃34;怎么办？
4）我对assert_template做错了什么？

Answer 1

将其更改为assert_template :new以使其正常工作;这是测试new.html.erb已呈现。

有关assert_template和一般测试视图的详情，请参阅http://guides.rubyonrails.org/testing.html#testing-templates-and-layouts。