test/root_path/BUILD.bazel

load("@bazel_skylib//rules:build_test.bzl", "build_test")
load("//rust:defs.bzl", "rust_library", "rust_test")
load(":defs.bzl", "package_dir_artifact")

package(default_visibility = ["//visibility:private"])

package_dir_artifact(
    name = "dir_artifact",
    srcs = [
        "src/lib.rs",
        "src/submodule.rs",
    ],
)

rust_library(
    name = "my_lib",
    srcs = [":dir_artifact"],
    root_path = "src/lib.rs",
)

rust_test(
    name = "my_lib_test",
    crate = ":my_lib",
)

build_test(
    name = "build_test",
    targets = [
        ":my_lib",
    ],
)