Rails Rspec测试者控制器动作定义实例变量

Question

I have a controller with action:

def new
  @team = Team.new
  @team.team_links.build
end

And I want to test this action with rspec. (I know it works, because it works as it should in the application, but my specs are failing.) Here is my spec:

it "returns new team with built in team_link" do
  get 'new'

  team = assigns(:team)
  team.should be_new_record
  team.team_links.should_not be_empty # HERE IS WHERE IT FAILS
end

Here is the error message:

 1) TeamsController GET new returns @team and builds one team_link
     Failure/Error: team.team_links.should_not be_empty
       expected empty? to return false, got true

Answer 1

@team.team_links.build is neither a persist record nor an instance variable, so the effect of this line disappeared in view context.

You need to assign it as an instance variable to be testable in view:

# Controller
@team_link = @team.team_link.build

# Rspec
assigns(:team_link).should_not be_empty