Change FileLockingCache so that a cache size of zero means 'unlimited'

Description

It was once this way? Maybe we just thought so, but looking at this:

it's clear that a cache size of zero is an error.

We probably only need to fix this test above and alter:

those three methods to behave 'specially' when the cache size is zero.

Then test - just make sure that the class works when the size is zero since we cannot make an infinite cache...

Done
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Assignee

James Gallagher

Reporter

James Gallagher