Question

我正在阅读Rails 5 Test Prescriptions这本书，我在运行其中一个例子时遇到了问题。谢谢你的帮助。

我有一个名为point_of_interest.rb的模型应用程序/模型/ point_of_interest.rb

我收到以下错误：

 NameError: uninitialized constant CreatesPointOfInterest

规格/工作流/ creates_point_of_interest.rb

class CreatesPointOfInterest
  attr_accessor :name, :point_of_interest

  def initialize(name: "")
   @name = name
  end

  def build
   self.point_of_interest = PointOfInterest.new(name: name)
  end
end

规格/工作流/ creates_point_of_interest_spec.rb

 require "rails_helper"
RSpec.describe CreatesPointOfInterest do
 describe "initialization" do
   it "creates a point of interest given a name" do
     creator = CreatesPointOfInterest.new(name: "Pyramids of Giza")
     creator.build
     expect(creator.point_of_interest.name).to eq("Pyramids of Giza")
   end
 end
end

终端输出：

〜/ Desktop / adventure / adventure [开发|！SP] $ rspec

An error occurred while loading 
./spec/workflows/creates_point_of_interest_spec.rb.
Failure/Error:
  RSpec.describe CreatesPointOfInterest do

   describe "initialization" do
        it "creates a point of interest given a name" do
            creator = CreatesPointOfInterest.new(name: "Pyramids of 
            Giza")
            creator.build
            expect(creator.point_of_interest.name).to eq("Pyramids of 
           Giza")
         end
   end


 NameError:
   uninitialized constant CreatesPointOfInterest

其他错误：

    .rvm/gems/ruby-2.3.3/gems/bootsnap- 
    1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in 
   `block in load_missing_constant'
    .rvm/gems/ruby-2.3.3/gems/bootsnap- 
    1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:8:in 
    `without_bootsnap_cache'
    .rvm/gems/ruby-2.3.3/gems/bootsnap- 
    1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:53:in 
    `rescue in load_missing_constant'
    .rvm/gems/ruby-2.3.3/gems/bootsnap- 
    1.3.0/lib/bootsnap/load_path_cache/core_ext/active_support.rb:43:in 
    `load_missing_constant'
    ./spec/workflows/creates_point_of_interest_spec.rb:3:in `<main>'
    .rvm/gems/ruby-2.3.3/gems/bootsnap- 
   1.3.0/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:50:in 

 --- Caused by: ---
  NameError:  uninitialized constant CreatesPointOfInterest

Answer 1

您的应用使用的类应位于a <- list( c("C", "A", "C", "C", "U", "U", "G", "U", "C", "C", "U", "C", "A", "C", "G", "G", "U", "C"), c("G", "U", "A", "G", "C", "A", "C", "U", "A", "A", "A", "G", "U", "G", "C", "U", "U", "A") ) b <- list( c(3, 4, 6, 7, 9, 10, 11, 12), c(1, 2, 3, 4, 6, 7, 8, 10) ) library(dplyr) key <- data_frame( grp = rep(seq_along(a), lengths(a)), element = unlist(a) ) %>% group_by(grp) %>% mutate(loc = seq_len(n())) lookup <- data_frame( grp = rep(seq_along(b), lengths(b)), loc = unlist(b) ) lookup %>% left_join(key, by = c("grp", "loc")) lookup %>% left_join(key, by = c("grp", "loc")) %>% {split(.$element, .$grp)} ## $`1` ## [1] "C" "C" "U" "G" "C" "C" "U" "C" ## ## $`2` ## [1] "G" "U" "A" "G" "A" "C" "U" "A"目录而不是app/

所以你应该：

spec

不

app/workflows/creates_point_of_interest.rb

您的spec文件名应与类名匹配。你确定这是对的吗？

spec/workflows/creates_point_of_interest.rb

但它应该是

spec/workflows/create_point_of_interest_spec.rb

NameError：未初始化的常量CreatesPointOfInterest Rspec

1 个答案: