On May 29, 2008, at 12:31 AM, Scott Taylor wrote:
On May 29, 2008, at 2:25 AM, zuo peng wrote:
Hi,
I've got trouble when describe infinite loop.
code snippet:
def start_loop
while true
data = self.server.handle_client
if data
self.manager.dispatch(data)
end
end
end
without the loop, it is easy to test the logic.
but how can I describe it to tell the developer ( me :-) ) that there
should be an infinite loop inside.
Here's a tip which Aslak gave me several months ago, and I find
myself repeating it in many different contexts on this mailing list:
One way is with dependency injection:
def start_loop(looping_infinitely = true)
:)
I think calling this dependency injection is a bit of a stretch. I
agree with the approach of having a logical default that you can
override in the example, but what exactly is the dependency on? true?
Regardless of its name, this is a very good solution to the problem at
hand.
while looping_infinitely
...
end
end
In your spec, you simply pass false (but production code can call
the method as if there is no option).
Scott
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