我在Michael Hartl的RoR教程第8章中遇到了一个问题.测试失败,因为RSpec的“它”方法是“未定义的”.你见过类似的东西吗？可能是什么原因？我查了一切,和书中的一样……
这是来自user_spec.rb的测试代码：
describe User do
before { @user = User.new(name: "Example User",email: "user@example.com",password: "foobar",password_confirmation: "foobar") }
subject { @user }
describe "remember token" do
before { @user.save }
its(:remember_token) { should_not be_blank }
end
...
...
测试运行的结果,它说：未定义的方法`它’为RSpec :: ExampleGroups :: User :: RememberToken：Class(NoMethodError)：
MBP:sample_app smi$bundle exec rspec spec /Users/smi/projects/sample_app/spec/models/user_spec.rb:12:in `block (2 levels) in <top (required)>': **undefined method `its' for RSpec::ExampleGroups::User::RememberToken:Class (NoMethodError)** from /Users/smi/.rvm/gems/ruby-2.0.0-p594/gems/rspec-core-3.1.7/lib/rspec/core/example_group.rb:325:in `module_exec' from /Users/smi/.rvm/gems/ruby-2.0.0-p594/gems/rspec-core-3.1.7/lib/rspec/core/example_group.rb:325:in `subclass' from /Users/smi/.rvm/gems/ruby-2.0.0-p594/gems/rspec-core-3.1.7/lib/rspec/core/example_group.rb:219:in `block in define_example_group_method' from /Users/smi/projects/sample_app/spec/models/user_spec.rb:10:in `block in <top (required)>' from /Users/smi/.rvm/gems/ruby-2.0.0-p594/gems/rspec-core-3.1.7/lib/rspec/core/example_group.rb:325:in `module_exec' from /Users/smi/.rvm/g.................
解决方法
你写下面的：
its(:remember_token) { should_not be_blank }
如
expect(subject.remember_token).not_to be_blank
阅读its isn’t core to RSpec和Arguments passed to its讨论.当你使用Rspec> = 3.0时,你就得到了错误.因为在此版本或更高版本中它不是Rspec核心的一部分.
您可以查看Rspec的当前One-liner syntax.