Rust

Versions

• 1.66 (edition = "2021")

The following profiles are used to get decent performance in tests:

[profile.dev]
opt-level = 1
[profile.dev.package."*"]
opt-level = 3

[profile.test]
opt-level = 1
[profile.test.package."*"]
opt-level = 3

[profile.dev]
opt-level = 1
[profile.dev.package."*"]
opt-level = 3

[profile.test]
opt-level = 1
[profile.test.package."*"]
opt-level = 3

Test Frameworks

Rust kata use the built-in Rust support for testing, with test functions marked with #[test].

Example

Solution and tests are concatenated to src/lib.rs.

pub fn add(x: i32, y: i32) -> i32 { x + y }

pub fn add(x: i32, y: i32) -> i32 { x + y }

All the tests should be in a child module named tests:

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn adds_i32() {
        assert_eq!(add(1, 1), 2);
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn adds_i32() {
        assert_eq!(add(1, 1), 2);
    }
}

The optional preloaded code is a child module preloaded at src/preloaded.rs. Rust's module system is explicit, so you need to declare it with mod preloaded; to use it.

See the unit testing chapter in the book and Rust By Example for more.

codewars/rust-devcontainer can be used if you'd like to solve locally.

Timeout

12 seconds

Packages

1.66

[dependencies]
bit-set = "0.5.3"
chrono = "0.4.23"
either = "1.8.0"
fancy-regex = "0.10.0"
futures = "0.3.25"
im = "15.1.0"
itertools = "0.10.5"
lazy_static = "1.4.0"
num = { version = "0.4.0", features = ["rand"] }
once_cell = "1.16.0"
rand = "0.8.5"
regex = "1.7.0"
serde = { version = "1.0.150", features = ["derive"] }
serde_json = "1.0.89"
text_io = "0.1.12"
thiserror = "1.0.37"
tokio = { version = "1.23.0", features = ["full"] }
tokio-util = { version = "0.7.4", features = ["full"] }

[dev-dependencies]
quickcheck = "1.0.3"
quickcheck_macros = "1.0.0"
float_eq = "1.0.1"

[dependencies]
bit-set = "0.5.3"
chrono = "0.4.23"
either = "1.8.0"
fancy-regex = "0.10.0"
futures = "0.3.25"
im = "15.1.0"
itertools = "0.10.5"
lazy_static = "1.4.0"
num = { version = "0.4.0", features = ["rand"] }
once_cell = "1.16.0"
rand = "0.8.5"
regex = "1.7.0"
serde = { version = "1.0.150", features = ["derive"] }
serde_json = "1.0.89"
text_io = "0.1.12"
thiserror = "1.0.37"
tokio = { version = "1.23.0", features = ["full"] }
tokio-util = { version = "0.7.4", features = ["full"] }

[dev-dependencies]
quickcheck = "1.0.3"
quickcheck_macros = "1.0.0"
float_eq = "1.0.1"

Services

None

Language ID

rust