Ruby-on-rails 如何在 RSpec 中多次说“should_receive”
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How to say "should_receive" more times in RSpec
提问by Jakub Arnold
I have this in my test
我的测试中有这个
Project.should_receive(:find).with(@project).and_return(@project)
but when object receive that method call two times, I have to do
但是当对象两次收到该方法调用时，我必须这样做
Project.should_receive(:find).with(@project).and_return(@project)
Project.should_receive(:find).with(@project).and_return(@project)
Is there any way how to say something like
有没有办法怎么说
Project.should_receive(:find).with(@project).and_return(@project).times(2)
回答by Staelen
This is outdated. Please check Uri's answerbelow
这是过时的。请在下面查看Uri 的回答
for 2 times:
2次：
Project.should_receive(:find).twice.with(@project).and_return(@project)
for exactly n times:
正好 n 次：
Project.should_receive(:find).exactly(n).times.with(@project).and_return(@project)
for at least n times:
至少 n 次：
Project.should_receive(:msg).at_least(n).times.with(@project).and_return(@project)
more details at https://www.relishapp.com/rspec/rspec-mocks/v/2-13/docs/message-expectations/receive-countsunder Receive Counts
更多详细信息，请访问https://www.relishapp.com/rspec/rspec-mocks/v/2-13/docs/message-expectations/receive-counts下的Receive Counts
Hope it helps =)
希望它有帮助 =)
回答by Uri Agassi
The new expectsyntax of rspec will look like this:
expectrspec的新语法如下所示：
for 2 times:
2次：
expect(Project).to receive(:find).twice.with(@project).and_return(@project)
for exactly n times:
正好 n 次：
expect(Project).to receive(:find).exactly(n).times.with(@project).and_return(@project)
for at least n times:
至少 n 次：
expect(Project).to receive(:msg).at_least(n).times.with(@project).and_return(@project)
回答by Prasanna
@JaredBeck pointed out. The solution didn't work for me on any_instancecall.
@JaredBeck 指出。该解决方案对我不起作用any_instance。
For any instance i ended up using stub instead of should_receive.
对于任何实例，我最终使用的是存根而不是 should_receive。
Project.any_instance.stub(:some_method).and_return("value")
This will work for any no. of times though.
这将适用于任何否。虽然有时。
回答by amnsan
should_receive, as opposed to any_instance, expects that the class receives message the specified number of times.
should_receive，而不是any_instance，期望类接收消息指定的次数。
any_instanceon the other hand is generally used for stubbing a method.
any_instance另一方面通常用于存根方法。
So the first case is an expectation that we would like to test, while the second one is getting past a method to the next line so we can move on.
所以第一种情况是我们想要测试的期望，而第二种情况是通过一个方法到下一行，所以我们可以继续。
