How to deal with RSpec time precision error
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In some cases, Ruby uses higher precision to represent time than the DB. When we compare a timestamp before and after saving to the DB it might not be equal.

RSpec rerun failures
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How to configure RSpec to rerun failed specs only

Make RSpec shared examples easier to understand with this one trick!
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This guy makes his shared examples easier to understand. Overpaid consultants hate him!

When to use let, let! and before in RSpec
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When to use let, let! and before in RSpec.