Rspec-未定义的方法'let'

问题描述

这是我的rspec文件：

This is my rspec file:

require 'spec_helper'

describe "Birds" do
  before { visit birds_path }
  it "should have the right title" do
    expect(page).to have_content("Approved Birds")
  end
  it "should contain the bird's name, genus, species" do
    let(:bird) { FactoryGirl.create(:bird) }
    expect(page).to have_content("#{bird.name}")
    expect(page).to have_content("#{bird.genus}")
    expect(page).to have_content("#{bird.species}")
  end
end

运行时，出现以下错误：

When I run it, I get the following error:

Failure/Error: let(:bird) { FactoryGirl.create(:bird) }
 NoMethodError:
   undefined method `let' for #<RSpec::Core::ExampleGroup::Nested_1:0xad87f84>

我的Gemfile包含 rspec-rails和 capybara宝石。有人对如何解决这个问题有任何想法吗？
谢谢

My Gemfile has both 'rspec-rails' and 'capybara' gems. Anyone have any idea on how to fix this? Thanks

推荐答案

describe "Birds" do
  let(:bird) { FactoryGirl.create(:bird) }

您永远不应该拥有<$ c $在 it 块内的c> let 块。应该在 description

you should never have a let block inside of a it block. It should be called from within a describe

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