diff --git a/src/test/java/xyz/alexcrea/cuanvil/api/ConflictApiTests.java b/src/test/java/xyz/alexcrea/cuanvil/api/ConflictApiTests.java
index 1d4249f..c9ee095 100644
--- a/src/test/java/xyz/alexcrea/cuanvil/api/ConflictApiTests.java
+++ b/src/test/java/xyz/alexcrea/cuanvil/api/ConflictApiTests.java
@@ -6,6 +6,8 @@ import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.inventory.AnvilInventory;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -20,6 +22,9 @@ import xyz.alexcrea.cuanvil.util.CommonItemUtil;
 
 import java.util.List;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 public class ConflictApiTests extends ConfigResetCustomAnvilTest {
 
     private AnvilInventory anvil;
@@ -42,7 +47,7 @@ public class ConflictApiTests extends ConfigResetCustomAnvilTest {
     }
 
     @Test
-    public void testConflict(){
+    public void testConflict() {
         ItemStack sharpness1 = CommonItemUtil.sharpness(1);
         ItemStack arthropods1 = CommonItemUtil.bane_of_arthropods(1);
         ItemStack illegalResult = AnvilFuseTestUtil.prepareItem(
@@ -70,13 +75,7 @@ public class ConflictApiTests extends ConfigResetCustomAnvilTest {
         AnvilFuseTestUtil.executeAnvilTest(anvil, player, nullResultData);
 
         // Try to find & remove conflict
-        EnchantConflictGroup conflict = null;
-        for (EnchantConflictGroup enchantConflictGroup : ConflictAPI.getRegisteredConflict()) {
-            if("sword_enchant_conflict".equalsIgnoreCase(enchantConflictGroup.getName())){
-                conflict = enchantConflictGroup;
-                break;
-            }
-        }
+        EnchantConflictGroup conflict = findGroup("sword_enchant_conflict");
         Assertions.assertNotNull(conflict, "Could not find conflict.");
 
         // Test what happen when we remove the conflict (illegal item should be allowed)
@@ -97,4 +96,47 @@ public class ConflictApiTests extends ConfigResetCustomAnvilTest {
         AnvilFuseTestUtil.executeAnvilTest(anvil, player, nullResultData);
     }
 
+    @Test
+    void writeGroup_Reload() {
+        String conflictName = "conflict";
+        ConflictBuilder builder = new ConflictBuilder(conflictName);
+
+        // Group not being set should not exist
+        assertFalse(doGroupExist(conflictName));
+
+        // Add group and reload
+        assertTrue(ConflictAPI.writeConflict(builder));
+        assertFalse(doGroupExist(conflictName));
+
+        // Tick so write get reloaded
+        server.getScheduler().performOneTick();
+
+        assertTrue(doGroupExist(conflictName));
+    }
+
+    @Test
+    void writeGroup_InvalidDot() {
+        String conflictName = "conflict.conflict";
+        ConflictBuilder builder = new ConflictBuilder(conflictName);
+
+        // Try write group
+        assertFalse(ConflictAPI.writeConflict(builder));
+    }
+
+    // Maybe move to ConflictApi class ?
+   private static boolean doGroupExist(@NotNull String groupName) {
+        return findGroup(groupName) != null;
+    }
+
+    // Maybe move to ConflictApi class ?
+    @Nullable
+    private static EnchantConflictGroup findGroup(@NotNull String groupName){
+        for (EnchantConflictGroup enchantConflictGroup : ConflictAPI.getRegisteredConflict()) {
+            if (groupName.equalsIgnoreCase(enchantConflictGroup.getName())) {
+                return enchantConflictGroup;
+            }
+        }
+        return null;
+    }
+
 }
diff --git a/src/test/java/xyz/alexcrea/cuanvil/api/MaterialGroupApiTests.java b/src/test/java/xyz/alexcrea/cuanvil/api/MaterialGroupApiTests.java
index 99026bc..e9c9485 100644
--- a/src/test/java/xyz/alexcrea/cuanvil/api/MaterialGroupApiTests.java
+++ b/src/test/java/xyz/alexcrea/cuanvil/api/MaterialGroupApiTests.java
@@ -43,7 +43,7 @@ public class MaterialGroupApiTests extends ConfigResetCustomAnvilTest {
     }
 
     @Test
-    void testAfterReload(){
+    void writeGroup_Reload() {
         String groupName = "group";
         IncludeGroup group = new IncludeGroup(groupName);
 
@@ -63,6 +63,16 @@ public class MaterialGroupApiTests extends ConfigResetCustomAnvilTest {
         assertTrue(doGroupCanBeFound(groupName));
     }
 
+
+    @Test
+    void writeGroup_InvalidDot() {
+        String groupName = "group.group";
+        IncludeGroup group = new IncludeGroup(groupName);
+
+        // Try write group
+        assertFalse(MaterialGroupApi.writeMaterialGroup(group));
+    }
+
     boolean doGroupExist(String groupName) {
         return MaterialGroupApi.getGroup(groupName) != null;
     }