add tests

src/disease.rs

@@ -1,25 +1,24 @@
 // use crate::prelude::*;
 
-
 // pub const MUTATION_TRAIT_INCREASE_PROBABILITY:i32 = 50;
 // pub const MUTATION_TRAIT_CHANGE_AMOUNT:i32 = 20;
 
-#[derive(Debug)]
+// #[derive(Debug)]
 pub struct Disease {
-    pub infection_rate:u32,
+    pub infection_rate: u32,
-    pub curing_rate:u32,
+    pub curing_rate: u32,
-    pub death_rate:u32,
+    pub death_rate: u32,
     pub traits: Vec<u32>,
     pub name: String,
 }
-impl Disease{
+impl Disease {
-    pub fn new(infection_r:u32,curing_r:u32,death_r:u32,the_name:String) -> Self{
+    pub fn new(infection_r: u32, curing_r: u32, death_r: u32, the_name: String) -> Self {
-        Self{
+        Self {
-            infection_rate : infection_r,
+            infection_rate: infection_r,
-            curing_rate : curing_r,
+            curing_rate: curing_r,
-            death_rate : death_r,
+            death_rate: death_r,
-            name : the_name,
+            name: the_name,
-            traits : vec![infection_r,curing_r,death_r],
+            traits: vec![infection_r, curing_r, death_r],
         }
     }
     // pub fn mutate(&mut self){
@@ -39,4 +38,4 @@ impl Disease{
     //         self.traits[i] = new_ratio as u32;
     //     }
     // }
-}
+}

src/human.rs

@@ -1,7 +1,7 @@
 // use crate::prelude::*;
 
 // #[derive(Copy, Clone, PartialEq)]
-#[derive(PartialEq, Debug)]
+#[derive(PartialEq)]
 pub enum State {
     Normal,
     Infected,
@@ -10,17 +10,17 @@ pub enum State {
 }
 // #[derive(Clone)]
 pub struct Human {
-    pub present_state : State,
+    pub present_state: State,
-    pub x : i32,
+    pub x: i32,
-    pub y : i32,
+    pub y: i32,
 }
-impl Human{
+impl Human {
     // humans with state "Normal"
-    pub fn new(pos_x :i32, pos_y :i32) -> Self{
+    pub fn new(pos_x: i32, pos_y: i32) -> Self {
-        Self{
+        Self {
-            present_state : State::Normal,
+            present_state: State::Normal,
-            x : pos_x,
+            x: pos_x,
-            y : pos_y
+            y: pos_y,
         }
     }
     // pub fn new_empty() -> Self{
@@ -30,4 +30,4 @@ impl Human{
     //         y : 0,
     //     }
     // }
-}
+}

src/main.rs

@@ -1,26 +1,27 @@
-mod human;
 mod disease;
+mod human;
 mod population;
 mod prelude {
-    pub use crate::human::*;
     pub use crate::disease::*;
+    pub use crate::human::*;
     pub use crate::population::*;
-    pub use rand::Rng;
-    pub use console::Term;
     pub use console::style;
-    pub const CORRECTED_PERCENTAGE:i32 = 101;
+    pub use console::Term;
+    pub use rand::Rng;
+    pub const CORRECTED_PERCENTAGE: i32 = 101;
 }
 
 use prelude::*;
 
 fn main() {
     let term = Term::stdout();
-    term.write_line("********** Rusty Propagation (Console) 2022 **********").expect("Oops Looks like we have a problem here...");
+    term.write_line("********** Rusty Propagation (Console) 2022 **********")
-    term.write_line("Press any key to start the propagation").expect("Oops Looks like we have a problem here...");
+        .expect("Oops Looks like we have a problem here...");
+    term.write_line("Press any key to start the propagation")
+        .expect("Oops Looks like we have a problem here...");
 
-
+    let disease = Disease::new(20, 10, 5, String::from("Covid 44"));
-    let disease = Disease::new(20,10,5,String::from("Covid 44"));
+    let mut population = Population::new(20, 10, 5, 300, 300, disease);
-    let mut population = Population::new(20,10,5,300,300,disease);
     //population.change_disease(disease);
     println!("Before Filling");
     //population.display();
@@ -28,17 +29,21 @@ fn main() {
     println!("After Filling");
     //population.display();
     println!("After Propagation");
-    let mut stats: [i32;4];
+    let mut stats: [i32; 4];
-     // = [0,0,0,0];
+    // = [0,0,0,0];
-    let mut counter:u32 = 0;
+    let mut counter: u32 = 0;
-    loop{
+    loop {
         counter += 1;
-        stats=population.propagate();
+        stats = population.propagate();
         //population.display();
-        println!("Infecteds: {} Immunes: {} Deads: {}",stats[1],stats[2],stats[3]);
+        println!(
-        if stats[1] == 0 {break;}
+            "Infecteds: {} Immunes: {} Deads: {}",
-    }   
+            stats[1], stats[2], stats[3]
-    println!("Propagation finished in {} steps",counter);
+        );
+        if stats[1] == 0 {
+            break;
+        }
+    }
+    println!("Propagation finished in {} steps", counter);
     //population.display();
-
 }

src/population.rs

@@ -1,148 +1,220 @@
 use crate::prelude::*;
 
+// #[derive(Debug)]
+pub struct Point {
+    x: i32,
+    y: i32,
+}
+
 #[derive(Debug)]
-pub struct Point{
+struct Stats {
-    x:i32,
+    normal: i32,
-    y:i32,
+    infected: i32,
+    immune: i32,
+    dead: i32,
 }
 
-pub struct Population{
+impl Stats {
-    pub start_infected_ratio:u32,
+    fn new() -> Stats {
-    pub start_immune_ratio:u32,
+        Stats {
-    pub start_dead_ratio:u32,
+            normal: 0,
-    pub humans:Vec<Human>,
+            infected: 0,
-    pub width:i32,
+            immune: 0,
-    pub height:i32,
+            dead: 0,
-    pub age:i32,
+        }
-    pub plague:Disease,
-}
-
-pub fn human_idx(x: i32, y: i32, width: i32) -> usize {
-    ((y * width) + x)as usize
-}
-
-#[test]
-fn popuplation_gen() {
-    let disease = Disease::new(20,10,5,String::from("Covid 44"));
-    let population = Population::new(20,10,5,5,7,disease);
-    assert_eq!(population.humans.len(), 5 * 7);
-    for human in population.humans.iter() {
-        assert_eq!(human.present_state, State::Normal);
     }
 }
 
-impl Population{
+pub struct Population {
-    pub fn new(start_infected_ratio:u32,start_immune_ratio:u32,start_dead_ratio:u32,width:i32,height:i32,plague:Disease)->Self{
+    pub start_infected_ratio: u32,
-        let mut the_humans: Vec<Human> = Vec::with_capacity((width*height) as usize);
+    pub start_immune_ratio: u32,
-        for x in 0..width{
+    pub start_dead_ratio: u32,
-            for y in 0..height{
+    pub humans: Vec<Human>,
+    pub width: i32,
+    pub height: i32,
+    pub age: i32,
+    pub plague: Disease,
+}
+
+pub fn human_idx(x: i32, y: i32, width: i32) -> usize {
+    ((y * width) + x) as usize
+}
+
+fn humans_stats(humans: &Vec<Human>) -> Stats {
+    let mut stats: Stats = Stats::new();
+    for human in humans.iter() {
+        match human.present_state {
+            State::Normal => {
+                stats.normal += 1;
+            }
+            State::Infected => {
+                stats.infected += 1;
+            }
+            State::Immune => {
+                stats.immune += 1;
+            }
+            State::Dead => {
+                stats.dead += 1;
+            }
+        }
+    }
+    stats
+}
+
+
+impl Population {
+    pub fn new(
+        start_infected_ratio: u32,
+        start_immune_ratio: u32,
+        start_dead_ratio: u32,
+        width: i32,
+        height: i32,
+        plague: Disease,
+    ) -> Self {
+        let mut the_humans: Vec<Human> = Vec::with_capacity((width * height) as usize);
+        for x in 0..width {
+            for y in 0..height {
                 the_humans.push(Human::new(x, y));
             }
         }
-        Self{
+        Self {
-            start_infected_ratio:start_infected_ratio,
+            start_infected_ratio: start_infected_ratio,
-            start_immune_ratio:start_immune_ratio,
+            start_immune_ratio: start_immune_ratio,
-            start_dead_ratio:start_dead_ratio,
+            start_dead_ratio: start_dead_ratio,
-            width:width,
+            width: width,
-            height:height,
+            height: height,
-            plague:plague,
+            plague: plague,
-            age:0,
+            age: 0,
-            humans:the_humans,
+            humans: the_humans,
         }
     }
     // pub fn change_disease(&mut self, plague:Disease){
     //     self.plague = plague;
     // }
-    pub fn generate(&mut self){
+    pub fn generate(&mut self) {
         //The ratios will not be exact, for example someone who wants 100% infected 100% immune and 100% dead, he will have 100% dead because they are overwriting each others
         //Maybe consider limiting the total to not exceed 100 in the view
         //Other thing, there will always be more of the last one because someone who is already infected for example could be then put to immune or dead
         //One solution to this issue would be to have if else else statements but in this case for example 20% would be lower with the last because its 20% on the remaining population and not of the all
         //In other words I did it that way but it can be changed just its not the right method to have perfect ratios
         let mut rng = rand::thread_rng();
-        
+
-        let mut i: i32 = 0;
         for x in self.humans.iter_mut() {
-            if rng.gen_range(0..CORRECTED_PERCENTAGE) < self.start_infected_ratio as i32
+            if (self.start_infected_ratio) > 0 && (rng.gen_range(0..CORRECTED_PERCENTAGE) <= self.start_infected_ratio as i32) {
-            {
                 x.present_state = State::Infected;
-            }
+            } else if self.start_immune_ratio > 0 && rng.gen_range(0..CORRECTED_PERCENTAGE) <= self.start_immune_ratio as i32 {
-            if rng.gen_range(0..CORRECTED_PERCENTAGE) < self.start_immune_ratio as i32
-            {
                 x.present_state = State::Immune;
-            }
+            } else if self.start_dead_ratio > 0 && rng.gen_range(0..CORRECTED_PERCENTAGE) <= self.start_dead_ratio as i32 {
-            if rng.gen_range(0..CORRECTED_PERCENTAGE) < self.start_dead_ratio as i32
-            {
                 x.present_state = State::Dead;
             }
-            i += 1;
         }
-        println!("generate for {} humans", i);
     }
-    pub fn propagate(&mut self)->[i32;4]{
+
-        let mut people_to_check:Vec<Point> = Vec::with_capacity((self.width * self.height) as usize);
+    pub fn propagate(&mut self) -> [i32; 4] {
-        let mut people_to_infect:Vec<Point> = Vec::with_capacity((self.width * self.height) as usize);
+        let mut people_to_check: Vec<Point> =
-        let mut people_to_cure:Vec<Point> = Vec::with_capacity((self.width * self.height) as usize);
+            Vec::with_capacity((self.width * self.height) as usize);
-        let mut people_to_kill:Vec<Point> = Vec::with_capacity((self.width * self.height) as usize);
+        let mut people_to_infect: Vec<Point> =
-        let mut stats: [i32;4] = [0,0,0,0];
+            Vec::with_capacity((self.width * self.height) as usize);
+        let mut people_to_cure: Vec<Point> =
+            Vec::with_capacity((self.width * self.height) as usize);
+        let mut people_to_kill: Vec<Point> =
+            Vec::with_capacity((self.width * self.height) as usize);
+        let mut stats: [i32; 4] = [0, 0, 0, 0];
         // stats[0] Normal stats[1] Infected stats[2] Immune stats[3] Dead
 
         for h in self.humans.iter() {
-            match h.present_state{
+            match h.present_state {
-                State::Normal => {stats[0] += 1;}
+                State::Normal => {
-                State::Infected => {people_to_check.push(Point{x:h.x,y:h.y});stats[1]+=1;}
+                    stats[0] += 1;
-                State::Immune => {stats[2] += 1;}
+                }
-                State::Dead => {stats[3] += 1;}
+                State::Infected => {
+                    people_to_check.push(Point { x: h.x, y: h.y });
+                    stats[1] += 1;
+                }
+                State::Immune => {
+                    stats[2] += 1;
+                }
+                State::Dead => {
+                    stats[3] += 1;
+                }
             }
         }
-//        for pos in &people_to_check {
+        //        for pos in &people_to_check {
         for pos in people_to_check.iter() {
-        //people_to_check.iter().map(|pos|{
+            //people_to_check.iter().map(|pos|{
             //get all the other people next to me and check if i die cure or infect
             //now we can start to check if people would be infected or not
             //let idx = human_idx(pos.x as i32, pos.y as i32, self.width as i32);
-            if pos.x > 0 && pos.x < self.width - 1 && pos.y > 0 && pos.y < self.height -1 {
+            if pos.x > 0 && pos.x < self.width - 1 && pos.y > 0 && pos.y < self.height - 1 {
-                if self.roll(self.plague.curing_rate){
+                if self.roll(self.plague.curing_rate) {
-                    //checks if the man dies 
+                    //checks if the man dies
-                    people_to_cure.push(Point{x:pos.x,y:pos.y});
+                    people_to_cure.push(Point { x: pos.x, y: pos.y });
-                }else{
+                } else {
-                    if self.roll(self.plague.death_rate){
+                    if self.roll(self.plague.death_rate) {
                         //cheks if the man dies
-                        people_to_kill.push(Point{x:pos.x,y:pos.y});
+                        people_to_kill.push(Point { x: pos.x, y: pos.y });
-                    }else{
+                    } else {
-                        let mut possible_infections:Vec<Point> = Vec::with_capacity(8);
+                        let mut possible_infections: Vec<Point> = Vec::with_capacity(8);
                         // Vec::new();
                         //possible_infections.push(Point{x:pos.x,y:pos.y});
 
-                        possible_infections.push(Point{x:pos.x -1,y:pos.y -1});     //Top Left
+                        possible_infections.push(Point {
-                        possible_infections.push(Point{x:pos.x,y:pos.y-1});         //Top
+                            x: pos.x - 1,
-                        possible_infections.push(Point{x:pos.x +1,y:pos.y -1});     //Top Right
+                            y: pos.y - 1,
+                        }); //Top Left
+                        possible_infections.push(Point {
+                            x: pos.x,
+                            y: pos.y - 1,
+                        }); //Top
+                        possible_infections.push(Point {
+                            x: pos.x + 1,
+                            y: pos.y - 1,
+                        }); //Top Right
 
-                        possible_infections.push(Point{x:pos.x -1,y:pos.y});        //Left
+                        possible_infections.push(Point {
-                        possible_infections.push(Point{x:pos.x +1,y:pos.y});        //Right
+                            x: pos.x - 1,
+                            y: pos.y,
+                        }); //Left
+                        possible_infections.push(Point {
+                            x: pos.x + 1,
+                            y: pos.y,
+                        }); //Right
 
-                        possible_infections.push(Point{x:pos.x -1,y:pos.y + 1});    //Bottom Left
+                        possible_infections.push(Point {
-                        possible_infections.push(Point{x:pos.x,y:pos.y + 1});       //Bottom
+                            x: pos.x - 1,
-                        possible_infections.push(Point{x:pos.x + 1,y:pos.y + 1});   //Bottom Right
+                            y: pos.y + 1,
+                        }); //Bottom Left
+                        possible_infections.push(Point {
+                            x: pos.x,
+                            y: pos.y + 1,
+                        }); //Bottom
+                        possible_infections.push(Point {
+                            x: pos.x + 1,
+                            y: pos.y + 1,
+                        }); //Bottom Right
 
                         for poss_infected_pos in possible_infections.iter() {
-                        //possible_infections.iter().map(|poss_infected_pos|{
+                            //possible_infections.iter().map(|poss_infected_pos|{
-                            let inf_idx = human_idx(poss_infected_pos.x, poss_infected_pos.y, self.width);
+                            let inf_idx =
-                            if self.humans[inf_idx].present_state == State::Normal{
+                                human_idx(poss_infected_pos.x, poss_infected_pos.y, self.width);
-                                if self.roll(self.plague.infection_rate){
+                            if self.humans[inf_idx].present_state == State::Normal {
-                                    people_to_infect.push(Point{x:poss_infected_pos.x,y:poss_infected_pos.y});
+                                if self.roll(self.plague.infection_rate) {
+                                    people_to_infect.push(Point {
+                                        x: poss_infected_pos.x,
+                                        y: poss_infected_pos.y,
+                                    });
                                 }
                             }
-                        };
+                        }
                     }
                 }
-            }else{
+            } else {
-                //TODO 
+                //TODO
                 //Check every special cases (corners sides etc..)
 
                 //REMOVE WHEN IMPLEMENTED
                 //It is here to prevent an infected in the borders to keep the programm running as he thinks there are still people to simulate
-                people_to_kill.push(Point{x:pos.x,y:pos.y});
+                people_to_kill.push(Point { x: pos.x, y: pos.y });
 
                 //    @##
                 //    ###
@@ -176,11 +248,16 @@ impl Population{
                 //    ###
                 //    ##@
             }
-        };
+        }
-        println!("{} to infect, {} to cure, {} to kill", people_to_infect.len(), people_to_cure.len(), people_to_kill.len());
+        println!(
+            "{} to infect, {} to cure, {} to kill",
+            people_to_infect.len(),
+            people_to_cure.len(),
+            people_to_kill.len()
+        );
         for infected_position in &people_to_infect {
             // println!("To infect: {:?}", infected_position);
-        //people_to_infect.iter().map(|infected_position|{
+            //people_to_infect.iter().map(|infected_position|{
             let infected_index = human_idx(infected_position.x, infected_position.y, self.width);
             // let _ = infected_position.x;
             //DEBUG
@@ -188,18 +265,18 @@ impl Population{
             self.humans[infected_index].present_state = State::Infected;
             //DEBUG
             //println!("Infected someone");
-        };
+        }
 
         for cured_position in &people_to_cure {
-        //people_to_cure.iter().map(|cured_position|{
+            //people_to_cure.iter().map(|cured_position|{
             let cured_index = human_idx(cured_position.x, cured_position.y, self.width);
             self.humans[cured_index].present_state = State::Immune;
             //DEBUG
             //println!("Cured someone");
-        };
+        }
 
         for dead_position in &people_to_kill {
-        //people_to_kill.iter().map(|dead_position|{
+            //people_to_kill.iter().map(|dead_position|{
             let dead_index = human_idx(dead_position.x, dead_position.y, self.width);
             if self.humans[dead_index].present_state == State::Dead {
                 println!("Already dead");
@@ -207,13 +284,13 @@ impl Population{
                 self.humans[dead_index].present_state = State::Dead;
             }
             //DEBUG
-        };
+        }
         stats
     }
-    pub fn roll(&self,probability:u32)->bool{
+    pub fn roll(&self, probability: u32) -> bool {
         let mut rng = rand::thread_rng();
         rng.gen_range(0..CORRECTED_PERCENTAGE) <= probability as i32
-    } 
+    }
     // pub fn display(&mut self){
     //     let sprite = "#";
     //     print!("\n");
@@ -229,6 +306,132 @@ impl Population{
     //             }
     //         }
     //         print!("\n");
-    //     }     
+    //     }
     // }
-}
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use parameterized::parameterized;
+
+    #[parameterized(x = {
+        2, 3, 5
+    }, y = {
+        1, 4, 0
+    }, width = {
+        3, 5, 7
+    }, res = {
+        5, 23, 5
+    })]
+    fn test_human_idx(x: i32, y: i32, width: i32, res: usize) {
+        assert_eq!(human_idx(x, y, width), res);
+    }
+
+    #[test]
+    fn test_human_stats() {
+        let mut humans: Vec<Human> = Vec::with_capacity(10);
+        let mut stats: Stats;
+
+        for _ in 0..10 {
+            humans.push(Human::new(0, 0));
+        }
+        stats = humans_stats(&humans);
+        assert_eq!(stats.normal, 10);
+
+        for x in 0..2 {
+            humans[x].present_state = State::Infected;
+        }
+        for x in 2..5 {
+            humans[x].present_state = State::Immune;
+        }
+        for x in 5..9 {
+            humans[x].present_state = State::Dead;
+        }
+        stats = humans_stats(&humans);
+        assert_eq!(stats.normal, 1);
+        assert_eq!(stats.infected, 2);
+        assert_eq!(stats.immune, 3);
+        assert_eq!(stats.dead, 4);
+    }
+
+    #[test]
+    fn population_new() {
+        let disease = Disease::new(20, 10, 5, String::from("Covid 44"));
+        let population = Population::new(20, 10, 5, 5, 7, disease);
+        assert_eq!(population.humans.len(), 5 * 7);
+        for human in population.humans.iter() {
+            assert!(human.present_state == State::Normal, "all humans should be normal");
+        }
+    }
+
+    #[test]
+    fn population_gen() {
+        let disease = Disease::new(20, 10, 5, String::from("Covid 44"));
+        let (width, height) = (5, 7);
+        let mut population = Population::new(20, 10, 5, 5, 7, disease);
+
+        population.generate();
+        let stats: Stats = humans_stats(&population.humans);
+        println!("Stats: {:?}", stats);
+
+        assert_eq!(
+            stats.normal + stats.infected + stats.immune + stats.dead,
+            width * height
+        );
+    }
+
+    #[test]
+    fn plague_init_stats() {
+        let mut disease: Disease;
+        let mut population: Population;
+        let mut stats: Stats;
+        let (width, height) = (5, 7);
+
+        disease = Disease::new(0, 0, 0, String::from("Test"));
+        population = Population::new(0, 0, 0, width, height, disease);
+        population.generate();
+        stats = humans_stats(&population.humans);
+        println!("should be normal: {:?}", stats);
+        assert_eq!(stats.normal, width * height);
+
+        disease = Disease::new(0, 0, 0, String::from("Test"));
+        population = Population::new(100, 0, 0, width, height, disease);
+        population.generate();
+        stats = humans_stats(&population.humans);
+        println!("should be infected: {:?}", stats);
+        assert_eq!(stats.infected, width * height);
+
+        disease = Disease::new(0, 0, 0, String::from("Test"));
+        population = Population::new(0, 100, 0, width, height, disease);
+        population.generate();
+        stats = humans_stats(&population.humans);
+        println!("should be immune: {:?}", stats);
+        assert_eq!(stats.immune, width * height);
+
+        disease = Disease::new(0, 0, 0, String::from("Test"));
+        population = Population::new(0, 0, 100, width, height, disease);
+        population.generate();
+        stats = humans_stats(&population.humans);
+        println!("should be dead: {:?}", stats);
+        assert_eq!(stats.dead, width * height);
+
+    }
+
+    #[parameterized(infection_rate = {0, 100}, infected_expected = {0, 1})]
+    fn propage_test(infection_rate: u32, infected_expected: i32) {
+        let disease: Disease;
+        let mut population: Population;
+        let mut stats: Stats;
+        let (width, height) = (100, 100);
+
+        disease = Disease::new(infection_rate, 0, 0, String::from("Test"));
+        population = Population::new(50, 0, 0, width, height, disease);
+        stats = humans_stats(&population.humans);
+        println!("Population: {:?}", stats);
+        population.generate();
+        population.propagate();
+        stats = humans_stats(&population.humans);
+        assert!(stats.normal <= width * height * infected_expected);
+    }
+}