Mocha 对关联构建调用的期望失败

Question

我有这个例子：

# GET New
context "on get to new" do
  it "should assign cardset" do
    @profile.cardsets.expects(:build).once.returns(Factory.stub(:cardset))
    get :new
    assigns[:cardset].should_not be_nil
  end
end

要测试这个方法：

# GET /cardsets/new
def new
  @cardset = current_user.cardsets.build
end

我试图强制从 current_user 构建关联，以确保用户只创建属于自己的东西。我使用非常类似的期望来确保它们从 current_user 对象调用 find 并且它可以工作 find，但是当运行上面的示例时，我得到：

6)
Mocha::ExpectationError in 'CardsetsController for a logged in user on get to new should assign cardset'
not all expectations were satisfied
unsatisfied expectations:
- expected exactly once, not yet invoked: [#<Cardset:0x102eaa8c8>, #<Cardset:0x102e12438>].build(any_parameters)
satisfied expectations:
- allowed any number of times, not yet invoked: ApplicationController.require_user(any_parameters)
- allowed any number of times, already invoked twice: #<CardsetsController:0x1030849c8>.current_user(any_parameters)

/Applications/MAMP/htdocs/my_app/spec/controllers/cardsets_controller_spec.rb:32:

Answer 1

在对从 current_user 返回期望的函数进行存根后，将期望添加到 @profile 中。也许你需要做的是这样的：

# GET New
context "on get to new" do
  it "should assign cardset" do
    @profile.cardsets.expects(:build).once.returns(Factory.stub(:cardset))
    controller.stubs(:current_user).returns(@profile)
    get :new
    assigns[:cardset].should_not be_nil
  end
end