在另一个包中测试时获取Coverage统计信息 [英] Get Coverage stats when tests are in another package

问题描述

我的测试与我的代码不在同一个包中。我发现这是一个用很多测试文件组织代码库的混乱方式，我已经读过，为了限制测试通过包的公共api进行交互是个好主意。

所以它看起来像这样：

  api_client：
 Client.go 
 ArtistService.go 
 ... 
 api_client_tests 
 ArtistService.Events_test.go 
 ArtistService.Info_test.go 
 UtilityFunction.go 
 ... 
  

我可以输入 go test bandsintown-api / api_client_tests -cover
，参见 0.181s覆盖率：语句的100.0％。但实际上这只是覆盖我的 UtilityFunction.go （正如我说的当我运行去测试bandsintown-api / api_client_tests -cover = cover.out 和
go tool cover -html = cover.out ）。

是否有任何方法可以获得被测试的实际 api_client 包的覆盖范围，而无需将它全部放入同一个包中？

解决方案

正如评论中提到的那样，您可以运行 go test -cover -coverpkgapi_clientapi_client_tests

运行覆盖率测试。

但是将代码文件从测试文件分解到不同的目录不是Go的方式。

我想你想要一个黑盒子测试（即使是测试，任何软件包私有内容都不能在外部访问）。为了达到这个目的，它允许在另一个软件包中进行测试（不移动文件）。例子：

api_client.go

  package api_client 
 
 //在包之外不可访问
 var privateVar = 10 
 
 func方法（）{
} 
  

api_client_test.go

  package api_client_tests 
 
 testtesting
 
 func TestClient（t * testing.T）{
 Method（）
} 
  

My tests aren't in the same package as my code. I find this a less cluttered way of organising a codebase with a lot of test files, and I've read that it's a good idea in order to limit tests to interacting via the package's public api.

So it looks something like this:

api_client:
    Client.go
    ArtistService.go
    ...
api_client_tests
    ArtistService.Events_test.go
    ArtistService.Info_test.go
    UtilityFunction.go
    ...

I can type go test bandsintown-api/api_client_tests -cover and see 0.181s coverage: 100.0% of statements. But that's actually just coverage over my UtilityFunction.go (as I say when I ran go test bandsintown-api/api_client_tests -cover=cover.out and go tool cover -html=cover.out).

Is there any way to get the coverage for the actual api_client package under test, without bringing it all into the same package?

解决方案

As it is mentioned in comments you can run

go test -cover -coverpkg "api_client" "api_client_tests"

to run the tests with coverage.

But splitting code files from tests files to a different directories isn't a Go's way.

I suppose that you want to have a black-box testing(nothing package-private stuff can be accessible outside, even for tests).

To accomplish this it's allowed to have tests in another package(without moving the files). Example:

api_client.go

package api_client

// will not be accessible outside of the package
var privateVar = 10

func Method() {
}

api_client_test.go

package api_client_tests

import "testing"

func TestClient(t *testing.T) {
    Method()
}

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