Question

Ruby，Rails和rspec的新手。我正在使用以下代码运行测试：

describe '#sorted_college_list_for_degrees' do
before do
  stub_const("COLLEGE_AND_DEPARTMENT",
              {"current_colleges_for_degrees"=> 
                {
                  "ceas"=>{"label"=>"Engineering"},
                  "com"=>{"label"=>"College of Medicine"},
                  "a&s"=>{"label"=>"Arts & Sciences"}
                }
              } 
            )
end

it "should return an array" do
 expect(helper.sorted_college_list_for_degrees).to be_an(Array) 
end

it "should contain all the colleges for degrees, plus 'other'" do
  expect(helper.sorted_college_list_for_degrees).to eq(
   ['Arts & Sciences','College of Medicine','Engineering','Other']
  )
end
end

describe '#sorted_college_list_for_generic_works' do
before do
  stub_const("COLLEGE_AND_DEPARTMENT",
              {"current_colleges_for_degrees"=> 
                {
                  "ceas"=>{"label"=>"Engineering"},
                  "com"=>{"label"=>"Arts & Sciences"},
                },
               "additional_current_colleges"=> 
                {
                  "ucl"=>{"label"=>"Libraries"},
                  "ucba"=>{"label"=>"Blue Ash College"},
                },
              }
            )
end

it "should return an array" do
  expect(helper.sorted_college_list_for_degrees).to be_an(Array) 
end

it "should contain all the colleges for degrees, plus additional colleges, plus 'other'" do
  expect(helper.sorted_college_list_for_generic_works).to eq(
   ['Arts & Sciences','Blue Ash College','Engineering','Libraries','Other']
  )
end

端

我遇到以下失败：

ApplicationHelper＃** sorted_college_list_for_degrees应该包含所有学位的学位，加上“其他” **失败/错误：期望（helper.sorted_college_list_for_degrees）.to eq（类型错误： 没有将nil隐式转换为Hash

“rspec /Users/lisa/workspaces/curate/spec/helpers/curate_helper_spec.rb:257#ApplicationHelper#sorted_college_list_for_degrees应该包含所有学位，加上'其他'”

所以 - 我不确定我是否理解错误。请注意，在原始帮助文件中有以下方法：

 def sorted_college_list_for_degrees
    list = COLLEGE_AND_DEPARTMENT["current_colleges_for_degrees"].merge(
      COLLEGE_AND_DEPARTMENT["additional_current_colleges"]
    )
    list.keys.collect do |k|
      list[k]["label"]
    end.sort << "Other"
end

提前致谢

Answer 1

您使用导致

的值来存储该常量

COLLEGE_AND_DEPARTMENT["additional_current_colleges"]

不允许nil并且将nil传递给merge - 它需要哈希值。

应用程序代码应检查此值是否为nil，如果不是，则仅调用merge，或者应更改存根数据以匹配应用程序代码所期望的值。

不明白rpec失败的原因？

1 个答案: