diff --git a/src/population.rs b/src/population.rs
index d508b6f..f746fa4 100644
--- a/src/population.rs
+++ b/src/population.rs
@@ -30,7 +30,14 @@ impl Population {
         height: i32,
         plague: Disease,
     ) -> Self {
-        let mut the_humans: Vec<Human> = vec![Human{x: 0, y: 0, present_state: State::Normal}; (width * height) as usize];
+        let mut the_humans: Vec<Human> = vec![
+            Human {
+                x: 0,
+                y: 0,
+                present_state: State::Normal
+            };
+            (width * height) as usize
+        ];
         for x in 0..width {
             for y in 0..height {
                 let idx = human_idx(x, y, width);
@@ -116,7 +123,7 @@ impl Population {
                     stats[0] += 1;
                 }
                 State::Infected => {
-                    people_to_check.push(Point{ x: h.x, y: h.y });
+                    people_to_check.push(Point { x: h.x, y: h.y });
                     stats[1] += 1;
                 }
                 State::Immune => {
@@ -345,7 +352,7 @@ mod tests {
         let mut stats: Stats;
 
         for _ in 0..10 {
-            humans.push(Human{
+            humans.push(Human {
                 present_state: State::Normal,
                 x: 0,
                 y: 0,
@@ -388,7 +395,6 @@ mod tests {
             assert_eq!(population.humans[idx].y, h.y, "coordinates should match");
         }
         assert_eq!(population.humans.len(), (width * height) as usize);
-
     }
 
     #[test]
@@ -505,15 +511,51 @@ mod tests {
 
         // start with normal population
         population.humans = vec![
-            Human{present_state: State::Normal, x: 0, y: 0},
-            Human{present_state: State::Normal, x: 1, y: 0},
-            Human{present_state: State::Normal, x: 2, y: 0},
-            Human{present_state: State::Normal, x: 0, y: 1},
-            Human{present_state: State::Infected, x: 1, y: 1},
-            Human{present_state: State::Normal, x: 2, y: 1},
-            Human{present_state: State::Normal, x: 0, y: 2},
-            Human{present_state: State::Normal, x: 1, y: 2},
-            Human{present_state: State::Normal, x: 2, y: 2},
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 1,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 1,
+            },
+            Human {
+                present_state: State::Infected,
+                x: 1,
+                y: 1,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 1,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 2,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 1,
+                y: 2,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 2,
+            },
         ];
         stats = humans_stats(&population.humans);
         println!("stats after init: {:?}", stats);
@@ -550,15 +592,51 @@ mod tests {
 
         // start with normal population
         population.humans = vec![
-            Human{present_state: State::Normal, x: 0, y: 0},
-            Human{present_state: State::Normal, x: 1, y: 0},
-            Human{present_state: State::Normal, x: 2, y: 0},
-            Human{present_state: State::Normal, x: 0, y: 1},
-            Human{present_state: State::Infected, x: 1, y: 1},
-            Human{present_state: State::Normal, x: 2, y: 1},
-            Human{present_state: State::Normal, x: 0, y: 2},
-            Human{present_state: State::Normal, x: 1, y: 2},
-            Human{present_state: State::Normal, x: 2, y: 2},
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 1,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 0,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 1,
+            },
+            Human {
+                present_state: State::Infected,
+                x: 1,
+                y: 1,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 1,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 0,
+                y: 2,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 1,
+                y: 2,
+            },
+            Human {
+                present_state: State::Normal,
+                x: 2,
+                y: 2,
+            },
         ];
         stats = humans_stats(&population.humans);
         println!("stats after init: {:?}", stats);