ruby-on-rails - 在 Mini_Test 和未初始化的常量错误中调用任何 Ruby 类

Question

我想通过使用 Mini_Test 和 Ruby 来实现 DCI，但我无法在 Mini_Test 中调用 AcademicYear 类。我在单独的文件中有一个简单的类和 Mini_Test 类，如下所示；

/app/Models/academicyear.rb

class AcademicYear
  attr_accessor :year
end

/app/Test/Contexts/headteacher_define_academicyear_context_test.rb

require "minitest_helper"
class HeadTeacherDefineAcademicYearContextTest < MiniTest::Unit::TestCase
  def test_should_add_academic_year
    academicyear = AcademicYear.new
    academicyear.year= "2012-2013"
  end
end

当我创建一个新的 AcademicYear 对象时，出现此错误；

HeadTeacherDefineAcademicYearContextTest#test_should_add_academic_year:
NameError: uninitialized constant HeadTeacherDefineAcademicYearContextTest::AcademicYear
    /home/developer/Desktop/dciexample/test/contexts/headteacher_define_academicyear_context_test.rb:6:in `test_should_add_academic_year'

我错过了什么，有什么想法吗？

Answer 1

你需要要求你的课

require_relative '../../Models/academicyear.rb'

结果你有

/app/Test/Contexts/headteacher_define_academicyear_context_test.rb

require "minitest_helper"
require_relative '../../Models/academicyear.rb'

class HeadTeacherDefineAcademicYearContextTest < MiniTest::Unit::TestCase
  def test_should_add_academic_year
    academicyear = AcademicYear.new
    academicyear.year= "2012-2013"
  end
end