Ruby-on-rails Rspec：如何检查是否调用了对另一个类的方法的调用？
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Rspec: how can I check if a call to a method of another class is called?
提问by rtacconi
I can I check if FeedItem::populate_from_friend_to_user is called inside the user class?
我可以检查 FeedItem::populate_from_friend_to_user 是否在用户类中被调用？
it "should auto populate feed after user.add_friend" do
@user.add_friend(@friend1)
@user.should_receive('FeedItem::populate_from_friend_to_user').with(@friend1, @user)
end
With the above code I get:
通过上面的代码，我得到：
undefined method `populate_from_friend_to_user' for :FeedItem:Symbol
回答by shingara
You should not know wherethe method is called, just ifthe method is called.. You just know if the method is call:
你不应该知道方法在哪里调用，只知道方法是否被调用..你只知道方法是否被调用：
Before RSpec 3
在 RSpec 3 之前
it "should auto populate feed after user.add_friend" do
FeedItem.should_receive(:populate_from_friend_to_user).with(@friend1, @user)
@user.add_friend(@friend1)
end
In RSpec 3the syntax is
在 RSpec 3 中，语法是
expect(Object).to receive(:method).with(params)
回答by Adam Piotrowski
Remember that is works only in rspec2 . For rspec3 u call
请记住，这仅适用于 rspec2 。对于 rspec3 你打电话
expect(@user).to receive(:your_method)
expect(@user).to receive(:your_method)
https://www.relishapp.com/rspec/rspec-mocks/v/3-0/docs/message-expectations
https://www.relishapp.com/rspec/rspec-mocks/v/3-0/docs/message-expectations
