是否有方法可以测试是否存在从另一个类方法调用的类方法?
class AnimalRecord < ApplicationRecord
COLLAR_ID = AnimalCollar::ID
belongs_to :animal
serialize :json, JSON
scope :collar_id, -> { for_collar(COLLAR_ID) }
def self.current_record(animal)
animal_info = AnimalRecord.collar_id.first
calculate_nutrients(animal_info)
end
def self.calculate_nutrients(animal)
code result
end
end
我可以从current_record中测试current_record
方法。但是测试calculate_nutrients
方法的正确方法是什么?
我有这个:
context "test record" do
before do
@animal = create(:animal... )
@animal_record = create(:animal_record...)
end
it "calls #calculate_nutrients" do
expected_response = responseHere
expect(AnimalRecord).to receive(:calculate_nutrients).and_return(expected_response)
AnimalRecord.current_record(@animal)
end
但是我收到这样的错误消息:
expected: 1 time with any arguments
received: 0 times with any arguments
我认为您确实从测试示例中删除了行expect(AnimalRecord).to receive(:event)
。似乎AnimalRecord
上没有定义这样的方法,但是您正在尝试“期望”它。