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If someone checks code in that breaks build (new failing tests) - build must be reverted if it is not fixed within 30 min. Use the following script to revert a specific build: ... todo build/tools/revert-svn-changes.cmd
One class per .cs file
Why? Because your checkins are much clearer and it confuses because in most files this is the case
When? Nearly always
Except...you have a lot of really small classes with tight coupling to play some test scenario. Then it might be clearer to have them together.
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