add tests

Reviewed-on: Maxluli/RustyPropagation#1

src/human.rs

@@ -1,7 +1,7 @@
 // use crate::prelude::*;
 
 // #[derive(Copy, Clone, PartialEq)]
-#[derive(PartialEq)]
+#[derive(PartialEq, Debug)]
 pub enum State {
     Normal,
     Infected,

src/population.rs

@@ -21,6 +21,16 @@ 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 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);
@@ -167,6 +177,7 @@ impl Population{
                 //    ##@
             }
         };
+        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|{
@@ -190,9 +201,12 @@ impl Population{
         for dead_position in &people_to_kill {
         //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");
+            } else {
                 self.humans[dead_index].present_state = State::Dead;
+            }
             //DEBUG
-            //println!("Killed someone");
         };
         stats
     }
@@ -200,21 +214,21 @@ impl Population{
         let mut rng = rand::thread_rng();
         rng.gen_range(0..CORRECTED_PERCENTAGE) <= probability as i32
     } 
-    pub fn display(&mut self){
-        let sprite = "#";
-        print!("\n");
-        for x in 0..self.width{
-            for y in 0..self.height{
-                let index = human_idx(x as i32,y as i32,self.width as i32);
-                match self.humans[index].present_state {
-                    State::Normal => print!("{}",style(sprite).green()),
-                    State::Dead => print!("{}",style(sprite).black()),
-                    State::Infected => print!("{}",style(sprite).red()),
-                    State::Immune => print!("{}",style(sprite).blue()),
-                    _ => print!("{}",style(sprite).white()),
-                }
-            }
-            print!("\n");
-        }     
-    }
+    // pub fn display(&mut self){
+    //     let sprite = "#";
+    //     print!("\n");
+    //     for x in 0..self.width{
+    //         for y in 0..self.height{
+    //             let index = human_idx(x as i32,y as i32,self.width as i32);
+    //             match self.humans[index].present_state {
+    //                 State::Normal => print!("{}",style(sprite).green()),
+    //                 State::Dead => print!("{}",style(sprite).black()),
+    //                 State::Infected => print!("{}",style(sprite).red()),
+    //                 State::Immune => print!("{}",style(sprite).blue()),
+    //                 _ => print!("{}",style(sprite).white()),
+    //             }
+    //         }
+    //         print!("\n");
+    //     }     
+    // }
 }