Question

我尝试测试'cancan'gem。当我运行rspec时，在行

expect(ability).to be_able_to(:destroy, Project.new(:user => user))

shell显示错误

NoMethodError: undefined method `expect' for main:Object

这是ability_spec.rb

require 'spec_helper'
  require "cancan/matchers"

  describe Ability do
    it "user has ability" do
      user = FactoryGirl.create(:user)
      ability = Ability.new(user)
      expect(ability).to be_able_to(:destroy, Project.new(:user => user))
    end
  end

UPD

2.1.5 :004 >     expect(ability).to be_able_to(:destroy, Project.new(:user => user))
NoMethodError: undefined method `expect' for main:Object
    from (irb):4
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/railties-4.1.4/lib/rails/commands/console.rb:90:in `start'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/railties-4.1.4/lib/rails/commands/console.rb:9:in `start'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:69:in `console'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'
2.1.5 :005 >

2UPD

weare138@weare138-P5K-SE:~/timonin$ bundle exec rspec spec/models/ability_spec.rb
/home/weare138/timonin/spec/models/ability_spec.rb:4:in `<top (required)>': uninitialized constant Ability (NameError)
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `load'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `block in load_spec_files'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `each'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/configuration.rb:1105:in `load_spec_files'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:96:in `setup'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:84:in `run'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:69:in `run'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/lib/rspec/core/runner.rb:37:in `invoke'
    from /home/weare138/.rvm/gems/ruby-2.1.5/gems/rspec-core-3.1.7/exe/rspec:4:in `<top (required)>'
    from /home/weare138/.rvm/gems/ruby-2.1.5/bin/rspec:23:in `load'
    from /home/weare138/.rvm/gems/ruby-2.1.5/bin/rspec:23:in `<main>'
    from /home/weare138/.rvm/gems/ruby-2.1.5/bin/ruby_executable_hooks:15:in `eval'
    from /home/weare138/.rvm/gems/ruby-2.1.5/bin/ruby_executable_hooks:15:in `<main>'

ability.rb

    class Ability
      include CanCan::Ability

      def initialize(user)
        user ||= User.new
        if user.admin?
          can :manage, :all
        else
          can :read, :all
        end
    end
 end

如何解决？

抱歉我的英文不好

Answer 1

您无法从控制台运行expect命令（或者至少，这不是通常的方式）。

相反，要运行测试运行

bundle exec rspec path/to/ability_spec.rb

或者如果您想要运行所有测试：

bundle exec rspec .

Rspec.NoMethodError：未定义的方法`expect＆＃39; for main：对象

1 个答案: