Re: How would you test this?

> Hi all,
>
> I'm new to jMock, and am exploring the limits of what it can and  
> can't do. I've recently discovered a pattern that I'm struggling to  
> test with jMock. I'll present an example, and I hope you can show me  
> how you'd test this. I suspect I need to adjust my approach to use  
> jMock in this situation. Thanks in advance!
>
> Suppose we have a TrackImpl class, which has an attribute, circuit  
> of type List<Point>. Point has a subclass, SpeedPoint. We wish to  
> add a method to Track, getPreviousSpeedPoint(Point current). The new  
> method will:
>
> - return the nearest previous SpeedPoint in circuit to the given  
> parameter.
> - wrap around to find the nearest previous SpeedPoint. (For example,  
> current could be at index 0, and a SpeedPoint at index  
> circuit.size() - 1. In that case, the SpeedPoint at circuit.size() -  
> 1 should be returned).
> - return null if no SpeedPoints are found in circuit.
> - throw an IllegalArgumentException if current is not contained in  
> circuit.
>
> I hope this explanation is clear! I'd be interested in seeing your  
> tests for the first couple of bullet points.
>
> I feel like I should be stubbing out Track#getCircuit() by  
> subclassing TrackImpl. Is a different approach used with jMock?
>
> Many thanks in advance.
>
> Cheers,
> Louis.
>
> ----
> Louis Rose
> Research Student
> Department of Computer Science,
> University of York,
> Heslington, York, YO10 5DD, United Kingdom.
> +44 1904 434762
> Twitter: @louismrose
>
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