How to tell Gazelle that go files are for go_default_test instead of go_default_library?

php editor Apple will introduce you how to tell Gazelle go files to apply to go_default_test instead of go_default_library. In Go language, Gazelle is a powerful build tool for organizing and building Go projects. By default, Gazelle treats all files ending with _test.go as test files and includes them in go_default_test. However, sometimes we want to exclude certain test files from go_default_test and include them in other targets, such as go_default_library. So, how to achieve this? Next, we will give you detailed answers.

Question content

I have a file embed_testdata.go that is intended for testing but has no tests itself (so I don't want to use _test.go as suffix). How do I tell gazelle that it is indeed a test source and not a production source?

FYI, just adding it to go_default_test and removing it from go_default_library won't work because gazelle will undo that manually edit.

Solution

https://www.php.cn/link/9877c66299c5b98d81fed12827d87e4b are all valid ngazelle instructions.

There are no specific instructions telling it to treat non-_test.go files as tests, but there are two that can be used to this effect, exclude and keep ：

# gazelle:exclude embed_testdata.go
…
go_test(
    name = "go_default_test",
    srcs = [
        "embed_testdata.go",  # keep
…

When embedding the file system, you also need content similar to the following:

go_test(
    name = "go_default_test",
…
    embedsrcs = glob(["testdata/**"]), # keep
…

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