Curriculum Errors, crates & tests Cargo and testing exercise 1 · mcq-explain

Cargo and testing

A new Rust project ships a Cargo.toml. Pick the statement that best describes what this file does.

TypeScript reference

It lists every Rust source file the compiler should include; without it, source files are ignored.

It declares the package name, version, edition, dependencies, and other crate metadata — the manifest that cargo build and cargo test read to know how to compile the crate.

It configures rustfmt and clippy lints for the project; not used by cargo build itself.

It maps crate names to compile flags for FFI bindings.

About this theme

Cargo is Rust's build tool, package manager, test runner, and project skeleton. This theme teaches Cargo.toml, crates, binaries vs libraries, unit tests, integration tests, and assert_eq!. Planned exercises: 1. choose the purpose of Cargo.toml. 2. recognise crate roots. 3. choose #[test]. 4. fill assert_eq!. 5. fill a module test path. 6. write a unit test. 7. write a result-returning test. 8. translate a TS test into Rust assertions. 9. organise a tiny library and binary split.