ruby-on-rails - 名称错误 : uninitialized constant

Question

我在 Rails 中进行单元测试......这是我的代码位于 test\unit\sample_test.rb

require 'test_helper'
require 'test/unit'
require 'sample'

class SampleTest < ActiveSupport::TestCase
    test "student details" do
        student = Student.new
        student.Date_of_joining = DateTime.now
        student.id = "123"
     assert_student student 
   end
end

我的 app\models\sample.rb 包含以下内容..,

class Sample     
  def assert_student(student)
        #assert_equal "123", student.external_reference
        "#{student_id}"
   end
end

当我运行“rake test:units”时，它显示了以下错误

 test_student_details(SampleTest):
    NameError: uninitialized constant SampleTest::Student
        test/unit/sample_test.rb:7:in `block in <class:SampleTest>'

我该如何解决这个问题？

Answer 1

您必须要求您的 SampleTest::Student 所在的文件进行测试。