Question

我正在为项目编写一些模型。我有一个User.rb类，它具有以下属性：

first_name：string

last_name：string

address_line_1：string

address_line_2：string

town：string

post_code：string

tel_no：string

电子邮件：字符串

password_digest：string

类型：

我有第二个模型Employee.rb，它继承自User.rb。

User.rb和Employee.rb都是搭建的。 User首先被搭建，Employee搭建了--parent=User选项。

运行测试时，出现以下错误：

Failure:
EmployeesControllerTest#test_should_create_employee [filepath]:
"Employee.count" didn't change by 1.
Expected: 3
Actual :2

这是在employees_controller_test中失败的代码：

setup do
  @employee = employees(:employee_one)
end

test "should create employee" do
  assert_difference('Employee.count') do
    post employees_url, params: { employee: { first_name: @employee.first_name, last_name: @employee.last_name, address_line_1: @employee.address_line_1, address_line_2: @employee.address_line_2, town: @employee.town, post_code: @employee.post_code, tel_no: @employee.tel_no, email: @employee.email, password_digest: "@employee.password_digest", type: @employee.type } }
  end

  assert_redirected_to employee_url(Employee.last)
end

以下是我的员工工具，在employees.yml

employee_one:
  first_name: "Employee1"
  last_name: "Example"
  address_line_1: "3 High Street"
  address_line_2: "Flat 3"
  town: "Glasgow"
  post_code: "G15 9BL"
  tel_no: "0123847439"
  email: "employee1@employee1.com"
  password_digest: "password"
  type: "Employee"

我想我的User.rb也很重要，包括：

class User < ApplicationRecord
  validates :first_name,      presence: true, length: { maximum: 50 }
  validates :last_name,       presence: true, length: { maximum: 50 }
  validates :address_line_1,  presence: true, length: { maximum: 50 }
  validates :address_line_2,  presence: true, length: { maximum: 50 }, :allow_nil => true
  validates :town,            presence: true, length: { maximum: 50 }
  validates :post_code,       presence: true, length: { maximum: 10 }
  validates :tel_no,          presence: true, length: { maximum: 14 }
  validates :email,           presence: true, length: { maximum: 50 }
  validates :password_digest, presence: true, length: { maximum: 256 }
  validates :type,            presence: true, length: { maximum: 15 }
end

我已经在这里待了4个小时左右，我想我只需要一双新眼睛。

如果我继续使用rails console --sandbox并使用User.create单独输入2个用户，并单独输入2名员工，则没有问题。

创建错误的原因是什么？

Answer 1

使用employee.rb选项支持--parent=User模型，不会自动将继承的参数从user.rb添加到employee.rb。

这意味着在employees_controller.rb中，employee_params方法定义了允许的参数：

def employee_params
  params.require(:employee).permit(:type)
end

这意味着当测试在Employees表中创建一个条目时，除了type之外的所有参数都没有插入。

我通过将employee_params更改为：

来修复它

def employee_params
  params.require(:employee).permit(:first_name, :last_name, :address_line_1, :address_line_2, :town, :post_code, :tel_no      , :email, :password_digest, :type)
end

现在所有测试都通过了。

Rails控制器测试错误：计数没有改变1

1 个答案: