如何重用导入包中的测试代码? [英] How to reuse test code in imported package?

问题描述

这是我的目录层次结构:

Here is my directory hierarchy:

/
|-- main.go // package main, an HTTP server which accepts request and calls C/U APIs in pkg1 to finish certain task
|-- main_test.go // wants to call veryfyTaskNumber in pkg1_test
|-- pkg1 // package pkg1, CRUD APIs with Retrieve&Delete unexported for safety
    |-- pkg1_test.go // contains a function verifyTaskNumber(*testing.T, taskName string, expectedNo int) which calls internal Retrieve function in pkg1

我仅在pkg1_test.go中具有一些用于测试的实用程序功能. main.go导入pkg1.现在，我想在我的main_test.go中使用这些功能.搜索之后，我发现了两种可能的解决方案，但是它们都有一些缺点:

I have some utility functions for tests only in pkg1_test.go. main.go imports pkg1. Now I want to use these functions in my main_test.go. After searching I found two possible solutions, but both of them have some drawbacks:

• 将这些功能移至pkg1.go.但是，这些功能可能包含在go build生成的二进制文件中.
• 将这些功能移动到单独的testutility程序包中，然后将其手动导入到*_test.go中.问题在于这些函数在pkg1中使用了一些内部方法.

• Move these functions into pkg1.go. However these functions might be contained in binaries generated by go build.
• Move these functions into a separate testutility package, then import it in *_test.go manually. The problem is that these functions use some internal methods in pkg1.

所以我想知道是否有更好的解决方案来解决这个问题.

So I was wondering whether there is a better solution to this problem.

推荐答案

如果您在整个项目的*_test.go文件中使用此功能，则最好将其移动到utils包中并将该包导入到*_test.go中.此外，由于此util软件包仅用于测试目的，因此建议将pkg1内部函数的输出保存在支持文件中，并在调用支持软件包的函数(应使用pkg1的私有函数)时加载该输出.

If you use this function in *_test.go file throughout the project it's a good idea to move it to a utils package and import this package in your *_test.go. Moreover since this util package is used only for testing purposes I suggest to save the output of the internal function of pkg1 in a support file and load it when you call the support package's function which should use the private function of pkg1.

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