diff --git a/.idea/misc.xml b/.idea/misc.xml
index 9d2ecf0..fa5b436 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,5 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="openjdk-21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="openjdk-21" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/ch/epfl/chacun/ZonePartitions.java b/src/ch/epfl/chacun/ZonePartitions.java
index e058c31..ab2e9b7 100644
--- a/src/ch/epfl/chacun/ZonePartitions.java
+++ b/src/ch/epfl/chacun/ZonePartitions.java
@@ -21,13 +21,13 @@ public record ZonePartitions(ZonePartition<Zone.Forest> forests, ZonePartition<Z
      */
     public static final class Builder {
         // The builder of the forests partition
-        private ZonePartition.Builder<Zone.Forest> forests;
+        private final ZonePartition.Builder<Zone.Forest> forests;
         // The builder of the meadows partition
-        private ZonePartition.Builder<Zone.Meadow> meadows;
+        private final ZonePartition.Builder<Zone.Meadow> meadows;
         // The builder of the rivers partition
-        private ZonePartition.Builder<Zone.River> rivers;
+        private final ZonePartition.Builder<Zone.River> rivers;
         // The builder of the river systems partition
-        private ZonePartition.Builder<Zone.Water> riverSystems;
+        private final ZonePartition.Builder<Zone.Water> riverSystems;
 
         /**
          * Returns a new builder whose four partitions are initially identical to those of the given
@@ -82,7 +82,7 @@ public void addTile(Tile tile) {
         }
 
         /**
-         * Connects each other the two given tile sides by connecting the corresponding areas.
+         * Connects to each other the two given tile sides by connecting the corresponding areas.
          *
          * @param s1 the first tile side
          * @param s2 the second tile side
diff --git a/test/ch/epfl/chacun/ZonePartitionsTest.java b/test/ch/epfl/chacun/ZonePartitionsTest.java
index bfd897b..7cdbfab 100644
--- a/test/ch/epfl/chacun/ZonePartitionsTest.java
+++ b/test/ch/epfl/chacun/ZonePartitionsTest.java
@@ -50,5 +50,26 @@ void addTileWorks() {
         testBuilder.addTile(tile);
 
         assertEquals(expectedZonePartitions, testBuilder.build());
+
+    }
+
+    @Test
+    void connectSidesWorks() {
+        // Meadows
+        Zone.Meadow meadow1 = new Zone.Meadow(0, new ArrayList<>(List.of(new Animal(0
+                , Animal.Kind.AUROCHS))), null);
+        Zone.Meadow meadow2 = new Zone.Meadow(1, new ArrayList<>(), null);
+
+        TileSide.Meadow meadowSide1 = new TileSide.Meadow(meadow1);
+        TileSide.Meadow meadowSide2 = new TileSide.Meadow(meadow2);
+
+        Set<Zone.Meadow> meadows1 = Set.of(meadow1);
+        Set<Zone.Meadow> meadows2 = Set.of(meadow2);
+
+        Area<Zone.Meadow> meadowArea1 = new Area<>(meadows1, new ArrayList<>(), 1);
+        Area<Zone.Meadow> meadowArea2 = new Area<>(meadows2, new ArrayList<>(), 1);
+
+        ZonePartition<Zone.Meadow> meadowZonePartition = new ZonePartition<>(Set.of(meadowArea1, meadowArea2));   
     }
+
 }