Oh that's perfect! Pretty much what I was looking for. Let me test it and 
get back to you.

I wonder where the blog author found that flag? It's not exposed in `go 
test`

On Tuesday, January 14, 2025 at 5:27:07 AM UTC-8 Byungjun You wrote:

> Have you try go test with -args -test.gocoverdir parameters?
>
> > go test -cover ./... -args -test.gocoverdir="{a directory where coverage 
> reports should be generated}"
>
> I found this blog post is very helpful when merging unit and integration 
> test coverage reports.
> https://dustinspecker.com/posts/go-combined-unit-integration-code-coverage/
>
> 2025년 1월 13일 월요일 오전 10시 13분 15초 UTC+9에 Paul Chesnais (papacharlie)님이 작성:
>
>> The blog post doesn't provide a way to translate the output of `go test 
>> -coverprofile ...` (which is the so-called legacy text format) into the new 
>> binary format, which `go tool covdata merge` expects. It only provides it 
>> in the reverse, i.e. the new binary format to the legacy format. So it 
>> means if I'm running my tests with multiple invocations of `go test` (e.g. 
>> because they need to be run in different envs/different tags) there's no 
>> easy way to get merged coverage results. Is there any way to get `go test` 
>> to produce the new format, or to translate the text format into the new 
>> format?
>>
>> On Saturday, January 11, 2025 at 9:26:40 PM UTC-5 Ian Lance Taylor wrote:
>>
>>> On Sat, Jan 11, 2025 at 10:07 AM Paul Chesnais (papacharlie) 
>>> <paul.c...@gmail.com> wrote: 
>>> > 
>>> > Is there another forum I can ask about this? Should this be a feature 
>>> request against the go team directly? It seems strange that the formats 
>>> haven't been converged, or that there's no way to get the new binary format 
>>> from `go test` 
>>>
>>> I don't really know the answer, but the blog post 
>>>
>>> https://go.dev/blog/integration-test-coverage#working-with-coverage-data-files
>>>  
>>> discusses converting between different coverage profile data formats. 
>>> If that doesn't help, can you explain in more detail, perhaps with a 
>>> series of commands that doesn't work as you hope? 
>>>
>>> Ian 
>>>
>>>
>>> > On Tuesday, December 3, 2024 at 1:26:04 PM UTC-5 Paul Chesnais 
>>> (papacharlie) wrote: 
>>> >> 
>>> >> Hello, 
>>> >> 
>>> >> I'd like to be able to merge the data from the output of `go test 
>>> -cover` with the output of a run using `go build -cover` but it seems that 
>>> there's no way to translate the "legacy" format from go test into the new 
>>> binary format. This means it's not possible to use the built-in tooling 
>>> like `go tool covdata merge`. There is of course the possibility of 
>>> translating the binary format back into the legacy format using textfmt but 
>>> then there's still no good way to merge the coverage data without using 
>>> some custom tooling like https://github.com/wadey/gocovmerge. 
>>> >> 
>>> >> As far as I can tell there's also no way to get clever and get `go 
>>> test -c` to build with the binary with the `-cover` flag because that build 
>>> flag gets eaten up by `go test`. It seems there's no way to get the new 
>>> coverage format from go test, unless I'm missing something? 
>>> >> 
>>> >> Just looking for any insights on this, thanks in advance! 
>>> >> 
>>> >> Paul 
>>> > 
>>> > -- 
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>>>  
>>>
>>>
>>

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