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The very problem is that tests failing is not necessarily due to behavior changing but implementation details not affecting behavior changing. This is especial
by yourenotsmart 5y ago
The very problem is that tests failing is not necessarily due to behavior changing but implementation details not affecting behavior changing.
This is especially the case when tests rely on mocks, which don't really implement the BEHAVIOR of a dependency, but rather represent a "replay" of a specific call stack sequence.