Data dependencies make reference to workspace

[lgalfaso]

Page link:

https://bazel.build/concepts/dependencies#data-dependencies

Problem description (include actual vs expected text, if applicable):

The page in the link reads

These files are available using the relative path path/to/data/file. In tests, you can refer to these files by joining the paths of the test's source directory and the workspace-relative path, for example, ${TEST_SRCDIR}/workspace/path/to/data/file

The reference to workspace in this link would make you believe that you can make a reference to any workspace, including the workspace for any dependency.

Eg. Say you have a dependency foo. This dependency has a BUILD file at the root that reads

filegroup(
    name = "bar",
    srcs = glob(["man/**/*.txt"]),
)

Say that @foo//:bar contains 1000s of files.

Then you have a cc_test that you would like to use the files from @foo//:bar.

cc_test(
    name = "some_test",
    srcs = ["some_test.cpp"],
    data = ["@foo//:bar"],
)

then following the doc, I would expect for ${TEST_SRCDIR}/foo/man to be reference to the man directory in @foo//:bar (for completeness, say that the workspace name of @foo is "foo").

This is not the case (and my understanding is that this is not the expected behaviour).

Where do you see this issue? (include link to specific section of the page, if applicable)

No response

Any other information you'd like to share?

No response