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我正在尝试使用 Rspec 对模型中的性别进行测试 - 它看起来像这样：

it "should require a valid gender" do
  wrong_gender_student = @student_group.students.create!(@student_attr.merge(gender: "Zlorp"))
  wrong_gender_student.should_not be_valid
end

正如预期的那样，它失败了：

1) Student should require a valid gender
 Failure/Error: wrong_gender_student.should_not be_valid
   expected #<Student id: 2, name: "Example Student", gender: "Zlorp", created_at: "2013-05-28 16:25:53", updated_at: "2013-05-28 16:25:53", student_group_id: 1> not to be valid

但是，当添加代码使其通过时：

class Student < ActiveRecord::Base
  attr_accessible :gender, :name

  belongs_to :student_group
  has_many   :subjects
  has_many   :characteristics

  VALID_GENDERS = %w(Male Female Transgender)

  validates :gender, inclusion: { :in => VALID_GENDERS,
                                :message => "%{value} is not a valid gender" }

end

它仍然失败，似乎验证测试正在工作，但没有通过“Zlorp” - 下面的性别是“Nil”

  1) Student should require a valid gender
 Failure/Error: association_attr #this is a list of variables in spec_helper.rb
 ActiveRecord::RecordInvalid:
   Validation failed: Gender  is not a valid gender

编辑：这里是关联属性：

def association_attr
  # User attritbutes 
  @user = Factory(:user)

  # Student_group
  @student_group = @user.student_groups.create!(@student_group_attr)
  # Student_group attributes
  @student_group_attr = { name: "4a" }

  # Student 
  @student = @student_group.students.create!(@student_attr)
  # Student attributes
  @student_attr = { gender: "Female", name: "Example Student" }

  # Subject
  @subject = @student.subjects.create!(@subject_attr)
  # Subject attributes
  @subject_attr = { name: "English", end_date: @date }
  @date = Date.today+180

  # Goal
  @goal = @subject.goals.create!(@goal_attr)
  # Goal attributes
  @goal_attr = { goal: "To unlearn the evil" }

  # Characteristic
  @characteristic = @student.characteristics.create!(@char_attr)
  # Characteristic attributes
  @char_attr = { characteristic: "Dyslexic" }

  # Age_group
  # For has_one associations use 'create_object'
  # http://stackoverflow.com/questions/7479083/ruby-on-rails-3-has-one-association-testing
  @age = @student_group.create_age!(@age_attr)
  # Age attributes
  @age_attr = { age: "older adults"}
end

有什么问题？

4

1 回答 1

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你的问题是你在第一行做什么

@student_group.students.create!

这会引发一个错误（ActiveRecord::RecordInvalid），因为这就是创建！当您尝试保存无效记录时会执行此操作。您甚至没有到达测试有效性的第二行。你需要做的是

 wrong_gender_student = @student_group.students.new(@student_attr.merge(gender: "Zlorp"))
 wrong_gender_student.should_not be_valid

此外，这具有不访问数据库的优点，这种测试不需要。

于 2013-05-28T17:16:01.823 回答