Interface With Your Database in Go Tests

Go’s strong type system includes a concept called interface. In Go, an interface is a collection of function signatures. Any type that implements all of those functions is implicitly able to be used as an interface type. For example, Go’s empty interface, interface{}, is similar to Ruby’s BasicObject or Java’s Object, from which all classes inherit in these languages. More concretely, Ruby’s Compa

[BigFatCat]

DataAccessLayer ← DBなど。Collaborator ← DBを利用するstructなど。例： 引数としてJSONを受け取り、DBに書き込む場合などに使える。