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finished structs

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This commit is contained in:
Jack Harper 2021-09-25 11:22:21 +01:00
parent 9655f473c3
commit d9b1cfd1a3
3 changed files with 14 additions and 19 deletions
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12
exercises/structs/structs1.rs
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@ -1,8 +1,6 @@
// structs1.rs // structs1.rs
// Address all the TODOs to make the tests pass! // Address all the TODOs to make the tests pass!
// I AM NOT DONE
struct ColorClassicStruct { struct ColorClassicStruct {
name: String, name: String,
hex: String hex: String
@ -17,14 +15,10 @@ struct UnitStruct;
mod tests { mod tests {
use super::*; use super::*;
static name:String = String::from("green");
static hex:String = String::from("#00FF00");
#[test] #[test]
fn classic_c_structs() { fn classic_c_structs() {
// TODO: Instantiate a classic c struct! // TODO: Instantiate a classic c struct!
let green = ColorClassicStruct(name:name, hex:hex); let green = ColorClassicStruct { name: String::from("green"), hex: String::from("#00FF00")};
assert_eq!(green.name, "green"); assert_eq!(green.name, "green");
assert_eq!(green.hex, "#00FF00"); assert_eq!(green.hex, "#00FF00");
} }
@ -32,7 +26,7 @@ mod tests {
#[test] #[test]
fn tuple_structs() { fn tuple_structs() {
// TODO: Instantiate a tuple struct! // TODO: Instantiate a tuple struct!
let green = ColorTupleStruct(name, hex); let green = ColorTupleStruct(String::from("green"), String::from("#00FF00"));
assert_eq!(green.0, "green"); assert_eq!(green.0, "green");
assert_eq!(green.1, "#00FF00"); assert_eq!(green.1, "#00FF00");
@ -41,7 +35,7 @@ mod tests {
#[test] #[test]
fn unit_structs() { fn unit_structs() {
// TODO: Instantiate a unit struct! // TODO: Instantiate a unit struct!
let unit_struct = UnitStruct(name, hex); let unit_struct = UnitStruct;
let message = format!("{:?}s are fun!", unit_struct); let message = format!("{:?}s are fun!", unit_struct);
assert_eq!(message, "UnitStructs are fun!"); assert_eq!(message, "UnitStructs are fun!");

8
exercises/structs/structs2.rs
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@ -1,8 +1,6 @@
// structs2.rs // structs2.rs
// Address all the TODOs to make the tests pass! // Address all the TODOs to make the tests pass!
// I AM NOT DONE
#[derive(Debug)] #[derive(Debug)]
struct Order { struct Order {
name: String, name: String,
@ -34,7 +32,11 @@ mod tests {
fn your_order() { fn your_order() {
let order_template = create_order_template(); let order_template = create_order_template();
// TODO: Create your own order using the update syntax and template above! // TODO: Create your own order using the update syntax and template above!
// let your_order = let mut your_order = Order{
name: String::from("Hacker in Rust"),
count: 1,
..order_template};
assert_eq!(your_order.name, "Hacker in Rust"); assert_eq!(your_order.name, "Hacker in Rust");
assert_eq!(your_order.year, order_template.year); 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_phone, order_template.made_by_phone);

13
exercises/structs/structs3.rs
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@ -4,8 +4,6 @@
// Make the code compile and the tests pass! // Make the code compile and the tests pass!
// If you have issues execute `rustlings hint structs3` // If you have issues execute `rustlings hint structs3`
// I AM NOT DONE
#[derive(Debug)] #[derive(Debug)]
struct Package { struct Package {
sender_country: String, sender_country: String,
@ -16,6 +14,7 @@ struct Package {
impl Package { impl Package {
fn new(sender_country: String, recipient_country: String, weight_in_grams: i32) -> Package { fn new(sender_country: String, recipient_country: String, weight_in_grams: i32) -> Package {
if weight_in_grams <= 0 { if weight_in_grams <= 0 {
panic!("weightless parcel");
// Something goes here... // Something goes here...
} else { } else {
return Package { return Package {
@ -26,12 +25,12 @@ impl Package {
} }
} }
fn is_international(&self) -> ??? { fn is_international(&self) -> bool {
// Something goes here... return self.sender_country != self.recipient_country;
} }
fn get_fees(&self, cents_per_gram: i32) -> ??? { fn get_fees(&self, cents_per_gram: i32) -> i32 {
// Something goes here... return self.weight_in_grams * cents_per_gram;
} }
} }
@ -73,7 +72,7 @@ mod tests {
let sender_country = String::from("Spain"); let sender_country = String::from("Spain");
let recipient_country = String::from("Spain"); let recipient_country = String::from("Spain");
let cents_per_gram = ???; let cents_per_gram = 3;
let package = Package::new(sender_country, recipient_country, 1500); let package = Package::new(sender_country, recipient_country, 1500);