test/rust_analyzer/merging_crates_test/rust_project_json_test.rs

use runfiles::Runfiles;

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_deps_of_crate_and_its_test_are_merged() {
        let r = Runfiles::create().unwrap();
        let rust_project_path =
            r.rlocation("rules_rust/test/rust_analyzer/merging_crates_test/rust-project.json");

        let content = std::fs::read_to_string(&rust_project_path)
            .expect(&format!("couldn't open {:?}", &rust_project_path));

        assert!(
            content.contains(r#""root_module":"test/rust_analyzer/merging_crates_test/mylib.rs","deps":[{"crate":0,"name":"lib_dep"},{"crate":2,"name":"extra_test_dep"}]"#),
            "expected rust-project.json to contain both lib_dep and extra_test_dep in deps of mylib.rs.");
    }
}