去模拟 postgresql 错误

Question

正如本文中所讨论的，我编写了用于检查唯一密钥违规的代码：

if err, ok := err.(*pq.Error); ok {
    if err.Code.Name() == "unique_violation" {
        fail(w, http.StatusBadRequest, 0, "Item already exists")
                    return
        }
}

为了编写单元测试用例，我需要模拟这个错误。我已经为这样的错误编写了模拟：

return pq.Error{Code: "unique_violation"}

但这与代码不符。我如何模拟 pq.Error?

Answer 1

如 Godoc, ErrorCode is a five-character error code. err.Code.Name() gets the human-friendly version of the error, but the error itself should be represented, and thus constructed, by the error code, which in this case is 23505 中所述。

去模拟 postgresql 错误

Go Mock postgresql errors

postgresql

unit-testing

go

pq