Identifying unique entities is a frequent requirement in software development. For instance, assigning a unique ID to each Ad impression enables us to link related events for billing and analysis. However, generating unique IDs becomes challenging when dealing with large distributed systems. In this survey, we explore …

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We set up test doubles when it is difficult or impossible to use real objects due to complexity or external dependencies. In Go, an interface is a collection of method signatures that define a set of behaviors. With interfaces, it is easy to create test doubles in Go. However, should you write test doubles on your own, …

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