From 64d95837e9813541cf5b357de13865ce687ae98d Mon Sep 17 00:00:00 2001 From: Adam Brewer Date: Mon, 16 Oct 2023 07:37:12 -0400 Subject: Update Exercises Directory Names to Reflect Order --- exercises/07_structs/README.md | 8 ++++ exercises/07_structs/structs1.rs | 51 +++++++++++++++++++++++ exercises/07_structs/structs2.rs | 50 +++++++++++++++++++++++ exercises/07_structs/structs3.rs | 88 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 197 insertions(+) create mode 100644 exercises/07_structs/README.md create mode 100644 exercises/07_structs/structs1.rs create mode 100644 exercises/07_structs/structs2.rs create mode 100644 exercises/07_structs/structs3.rs (limited to 'exercises/07_structs') diff --git a/exercises/07_structs/README.md b/exercises/07_structs/README.md new file mode 100644 index 0000000..3fc1fdc --- /dev/null +++ b/exercises/07_structs/README.md @@ -0,0 +1,8 @@ +# Structs + +Rust has three struct types: a classic C struct, a tuple struct, and a unit struct. + +## Further information + +- [Structures](https://doc.rust-lang.org/book/ch05-01-defining-structs.html) +- [Method Syntax](https://doc.rust-lang.org/book/ch05-03-method-syntax.html) diff --git a/exercises/07_structs/structs1.rs b/exercises/07_structs/structs1.rs new file mode 100644 index 0000000..5fa5821 --- /dev/null +++ b/exercises/07_structs/structs1.rs @@ -0,0 +1,51 @@ +// structs1.rs +// +// Address all the TODOs to make the tests pass! +// +// Execute `rustlings hint structs1` or use the `hint` watch subcommand for a +// hint. + +// I AM NOT DONE + +struct ColorClassicStruct { + // TODO: Something goes here +} + +struct ColorTupleStruct(/* TODO: Something goes here */); + +#[derive(Debug)] +struct UnitLikeStruct; + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn classic_c_structs() { + // TODO: Instantiate a classic c struct! + // let green = + + assert_eq!(green.red, 0); + assert_eq!(green.green, 255); + assert_eq!(green.blue, 0); + } + + #[test] + fn tuple_structs() { + // TODO: Instantiate a tuple struct! + // let green = + + assert_eq!(green.0, 0); + assert_eq!(green.1, 255); + assert_eq!(green.2, 0); + } + + #[test] + fn unit_structs() { + // TODO: Instantiate a unit-like struct! + // let unit_like_struct = + let message = format!("{:?}s are fun!", unit_like_struct); + + assert_eq!(message, "UnitLikeStructs are fun!"); + } +} diff --git a/exercises/07_structs/structs2.rs b/exercises/07_structs/structs2.rs new file mode 100644 index 0000000..328567f --- /dev/null +++ b/exercises/07_structs/structs2.rs @@ -0,0 +1,50 @@ +// structs2.rs +// +// Address all the TODOs to make the tests pass! +// +// Execute `rustlings hint structs2` or use the `hint` watch subcommand for a +// hint. + +// I AM NOT DONE + +#[derive(Debug)] +struct Order { + name: String, + year: u32, + made_by_phone: bool, + made_by_mobile: bool, + made_by_email: bool, + item_number: u32, + count: u32, +} + +fn create_order_template() -> Order { + Order { + name: String::from("Bob"), + year: 2019, + made_by_phone: false, + made_by_mobile: false, + made_by_email: true, + item_number: 123, + count: 0, + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn your_order() { + let order_template = create_order_template(); + // TODO: Create your own order using the update syntax and template above! + // let your_order = + assert_eq!(your_order.name, "Hacker in Rust"); + assert_eq!(your_order.year, order_template.year); + assert_eq!(your_order.made_by_phone, order_template.made_by_phone); + assert_eq!(your_order.made_by_mobile, order_template.made_by_mobile); + assert_eq!(your_order.made_by_email, order_template.made_by_email); + assert_eq!(your_order.item_number, order_template.item_number); + assert_eq!(your_order.count, 1); + } +} diff --git a/exercises/07_structs/structs3.rs b/exercises/07_structs/structs3.rs new file mode 100644 index 0000000..7cda5af --- /dev/null +++ b/exercises/07_structs/structs3.rs @@ -0,0 +1,88 @@ +// structs3.rs +// +// Structs contain data, but can also have logic. In this exercise we have +// defined the Package struct and we want to test some logic attached to it. +// Make the code compile and the tests pass! +// +// Execute `rustlings hint structs3` or use the `hint` watch subcommand for a +// hint. + +// I AM NOT DONE + +#[derive(Debug)] +struct Package { + sender_country: String, + recipient_country: String, + weight_in_grams: u32, +} + +impl Package { + fn new(sender_country: String, recipient_country: String, weight_in_grams: u32) -> Package { + if weight_in_grams < 10 { + // This is not how you should handle errors in Rust, + // but we will learn about error handling later. + panic!("Can not ship a package with weight below 10 grams.") + } else { + Package { + sender_country, + recipient_country, + weight_in_grams, + } + } + } + + fn is_international(&self) -> ??? { + // Something goes here... + } + + fn get_fees(&self, cents_per_gram: u32) -> ??? { + // Something goes here... + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + #[should_panic] + fn fail_creating_weightless_package() { + let sender_country = String::from("Spain"); + let recipient_country = String::from("Austria"); + + Package::new(sender_country, recipient_country, 5); + } + + #[test] + fn create_international_package() { + let sender_country = String::from("Spain"); + let recipient_country = String::from("Russia"); + + let package = Package::new(sender_country, recipient_country, 1200); + + assert!(package.is_international()); + } + + #[test] + fn create_local_package() { + let sender_country = String::from("Canada"); + let recipient_country = sender_country.clone(); + + let package = Package::new(sender_country, recipient_country, 1200); + + assert!(!package.is_international()); + } + + #[test] + fn calculate_transport_fees() { + let sender_country = String::from("Spain"); + let recipient_country = String::from("Spain"); + + let cents_per_gram = 3; + + let package = Package::new(sender_country, recipient_country, 1500); + + assert_eq!(package.get_fees(cents_per_gram), 4500); + assert_eq!(package.get_fees(cents_per_gram * 2), 9000); + } +} -- cgit v1.2.3