Решение на FMI Buzz от Тихомир Каменов

Обратно към всички решения

Към профила на Тихомир Каменов

Код

pub fn fizzbuzz(n: usize) -> Vec<String> {

let buzzer: FizzBuzzer = FizzBuzzer { k1: 3, k2: 5, labels: [String::from("Fizz"), String::from("Buzz"), String::from("Fizzbuzz")] };

buzzer.take(n)

}

pub fn custom_buzz(n: usize, k1: u8, k2: u8) -> Vec<String> {

let buzzer: FizzBuzzer = FizzBuzzer { k1: k1, k2: k2, labels: [String::from("Fizz"), String::from("Buzz"), String::from("Fizzbuzz")] };

buzzer.take(n)

}

pub struct FizzBuzzer {

pub k1: u8,

pub k2: u8,

pub labels: [String; 3],

}

impl FizzBuzzer {

pub fn take(&self, n: usize) -> Vec<String> {

let mut words: Vec<String> = Vec::new();

if n == 0 {

return words;

}

if self.k1 == 0 || self.k1 == 1 || self.k2 == 0 || self.k2 == 1 {

std::panic!("Invalid arguments!");

}

let n1: usize = usize::from(self.k1);

let n2: usize = usize::from(self.k2);

for i in 1..n+1 {

match i {

i if i % n1 == 0 && i % n2 == 0 => words.push(String::from(&self.labels[2])),

i if i % n1 == 0 => words.push(String::from(&self.labels[0])),

i if i % n2 == 0 => words.push(String::from(&self.labels[1])),

_ => words.push(i.to_string())

}

}

words

}

pub fn change_label(&mut self, index: usize, value: &String) {

if index >= 3 {

std::panic!("Out of bounds!");

}

self.labels[index] = String::from(value);

}

}

#[cfg(test)]

mod tests {

use super::fizzbuzz;

#[test]

fn test_fizzbuzz_with_correct_number() {

let n: usize = 5;

let mut expected: Vec<String> = Vec::new();

expected.push(1.to_string());

expected.push(2.to_string());

expected.push(String::from("Fizz"));

expected.push(4.to_string());

expected.push(String::from("Buzz"));

let result: Vec<String> = fizzbuzz(n);

assert_eq!(result, expected);

}

#[test]

fn test_fizzbuzz_with_zero() {

let n: usize = 0;

let expected: Vec<String> = Vec::new();

let result: Vec<String> = fizzbuzz(n);

assert_eq!(result, expected);

}

use super::custom_buzz;

#[test]

#[should_panic]

fn test_custom_buzz_with_divisor_zero_or_one() {

let n: usize = 5;

let k1: u8 = 0;

let k2: u8 = 1;

custom_buzz(n, k1, k2);

}

use super::FizzBuzzer;

#[test]

fn test_fizzbuzzer_change_label() {

let mut buzzer: FizzBuzzer = FizzBuzzer { k1: 3, k2: 5, labels: [String::from("Fizz"), String::from("Buzz"), String::from("Fizzbuzz")] };

let index: usize = 2;

let value: &String = &String::from("Fizzbuzzer");

let expected: [String; 3] = [String::from("Fizz"), String::from("Buzz"), String::from("Fizzbuzzer")];

buzzer.change_label(index, value);

assert_eq!(buzzer.labels, expected);

}

#[test]

#[should_panic]

fn test_fizzbuzzer_change_label_incorrect_index() {

let mut buzzer: FizzBuzzer = FizzBuzzer { k1: 3, k2: 5, labels: [String::from("Fizz"), String::from("Buzz"), String::from("Fizzbuzz")] };

let index: usize = 3;

let value: &String = &String::from("Fizzbuzzer");

buzzer.change_label(index, value);

}

}

Лог от изпълнението

Compiling solution v0.1.0 (/tmp/d20201028-2816268-hfac3/solution)
    Finished test [unoptimized + debuginfo] target(s) in 2.74s
     Running target/debug/deps/solution-ebb42508826ef2b4

running 5 tests
test tests::test_custom_buzz_with_divisor_zero_or_one ... ok
test tests::test_fizzbuzz_with_correct_number ... ok
test tests::test_fizzbuzz_with_zero ... ok
test tests::test_fizzbuzzer_change_label ... ok
test tests::test_fizzbuzzer_change_label_incorrect_index ... ok

test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/debug/deps/solution_test-9e954a53ed808c89

running 10 tests
test solution_test::test_change_label_basic ... ok
test solution_test::test_change_label_invalid ... ok
test solution_test::test_classic1 ... ok
test solution_test::test_classic2 ... ok
test solution_test::test_coefficients1 ... ok
test solution_test::test_coefficients2 ... ok
test solution_test::test_coefficients_invalid ... ok
test solution_test::test_struct_basic ... ok
test solution_test::test_struct_invalid ... ok
test solution_test::test_zeroes ... ok

test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

   Doc-tests solution

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

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