Function env_data_dir_override

nodedb/src/config/server/env.rs:517–526

()

    #[test]
    fn env_data_dir_override() {
        unsafe { std::env::set_var("NODEDB_DATA_DIR", "/tmp/test-nodedb") };
        let mut cfg = ServerConfig::default();
        apply_env_overrides(&mut cfg);
        assert_eq!(
            cfg.server.data_dir,
            std::path::PathBuf::from("/tmp/test-nodedb")
        );
        unsafe { std::env::remove_var("NODEDB_DATA_DIR") };
    }

    /// Tests valid and malformed `NODEDB_MEMORY_LIMIT` sequentially to avoid
    /// env-var races (env vars are process-global, Rust tests run in parallel).