Make it easier to use rust_test_suite in macros.

[sayrer]

As written, this function produces duplicate test rules if used in macros. This patch aims to make it easy to run integration tests with different crate_features, via a macro.

[UebelAndre]

As written, this function produces duplicate test rules if used in macros. This patch aims to make it easy to run integration tests with different crate_features, via a macro.

I'm not sure I understand what the prefixing gets you. Can you demonstrate how this might be used?

[sayrer]

def mycrate_build(name, crate_features):
    rust_library(
        name = name,
        srcs = native.glob(["src/**/*.rs"]),
        aliases = {
        },
        crate_features = crate_features,
        crate_name = name,
        ...
    )

    # Works
    rust_test(
        name = name + "_unit_tests",
        crate = ":" + name,
        crate_features = crate_features,
    )

    # Does not work due to duplicate rust_test rules
    rust_test_suite(
        name = name + "_integration_tests",
        srcs = native.glob(["tests/**/*.rs"]),
        crate_features = crate_features,
    )

[sayrer]

I could see other ways to solve this, but it would be nice if the rule made it easy.

[illicitonion]

Works for me :) Thanks!

[UebelAndre]

Ah, thanks for the example! Looks good to me 😄