diff --git a/build.gradle.kts b/build.gradle.kts
index 3cb551e..31ea957 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -28,7 +28,9 @@ dependencies {
     compileOnly("org.spigotmc:spigot-api:1.18-R0.1-SNAPSHOT")
 
     // Gui library
-    implementation("com.github.stefvanschie.inventoryframework:IF:0.10.17")
+    val stefvanschie_IF = "com.github.stefvanschie.inventoryframework:IF:0.10.17"
+    implementation(stefvanschie_IF)
+    testRuntimeOnly(stefvanschie_IF)
 
     // EnchantsSquaredRewritten
     compileOnly(files("libs/EnchantsSquared.jar"))
@@ -61,6 +63,10 @@ dependencies {
 
     // include kotlin for the offline jar
     implementation(kotlin("stdlib"))
+
+    // Test dependency
+    testImplementation("com.github.seeseemelk:MockBukkit-v1.21:3.133.2")
+    testRuntimeOnly("commons-lang:commons-lang:2.6")
 }
 
 allprojects {
@@ -80,7 +86,7 @@ allprojects {
     dependencies {
         compileOnly(kotlin("stdlib"))
 
-        // Currently not used. but it would be useful to test.
+        // Test dependency
         testImplementation(platform("org.junit:junit-bom:5.9.1"))
         testImplementation("org.junit.jupiter:junit-jupiter")
     }
@@ -92,7 +98,7 @@ allprojects {
     // Configure used version of kotlin and java
     java {
         disableAutoTargetJvm()
-        toolchain.languageVersion.set(JavaLanguageVersion.of(20))
+        toolchain.languageVersion.set(JavaLanguageVersion.of(21))
     }
 
     // Set target version
diff --git a/src/test/java/io/delilaheve/CustomAnvilTests.java b/src/test/java/io/delilaheve/CustomAnvilTests.java
new file mode 100644
index 0000000..99785e7
--- /dev/null
+++ b/src/test/java/io/delilaheve/CustomAnvilTests.java
@@ -0,0 +1,44 @@
+package io.delilaheve;
+
+import be.seeseemelk.mockbukkit.MockBukkit;
+import be.seeseemelk.mockbukkit.ServerMock;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class CustomAnvilTests {
+
+    private ServerMock server;
+
+    private CustomAnvil plugin;
+
+    @BeforeEach
+    public void setUp() {
+
+        // Start the mock server
+        server = MockBukkit.mock();
+
+        // Load your plugin
+        plugin = MockBukkit.load(CustomAnvil.class);
+
+
+
+    }
+
+
+    @AfterEach
+    public void tearDown() {
+        // Stop the mock server
+        MockBukkit.unmock();
+
+    }
+
+
+    @Test
+    public void simpleInitTest() {
+        // Continue initialization of the plugin
+        server.getScheduler().performOneTick();
+
+    }
+
+}
diff --git a/src/test/resources/plugin.yml b/src/test/resources/plugin.yml
new file mode 100644
index 0000000..8778cf0
--- /dev/null
+++ b/src/test/resources/plugin.yml
@@ -0,0 +1,61 @@
+main: io.delilaheve.CustomAnvil
+name: CustomAnvil
+prefix: "Custom Anvil"
+version: ${version}
+folia-supported: true
+description: Allow to customise anvil mechanics
+api-version: 1.16
+load: POSTWORLD
+authors: [ DelilahEve, alexcrea ]
+libraries:
+  - org.jetbrains.kotlin:kotlin-stdlib:2.0.21
+
+commands:
+  anvilconfigreload:
+    description: Reload every config of this plugin
+    permission: ca.command.reload
+    aliases:
+      #- acreload # anvil config reload
+      #- careload # custom anvil reload
+      - carl # custom anvil reload
+  customanvilconfig:
+    description: open a menu for administrator to edit plugin's config in game
+    permission: ca.config.edit
+    aliases:
+      - configanvil
+
+permissions:
+  ca.affected:
+    default: true
+    description: Player with this permission will be affected by the plugin
+  ca.bypass.fuse:
+    default: false
+    description: Allow player to combine every enchantments to every item (no custom limit)
+  ca.bypass.level:
+    default: false
+    description: Allow player to bypass every level limit (no custom limit)
+  ca.command.reload:
+    default: op
+    description: Allow administrator to reload the plugin's configs
+  ca.config.edit:
+    default: op
+    description: Allow administrator to edit the plugin's config in game
+  # color permissions
+  ca.color.code:
+    default: op
+    description: Allow player to use color code if permission is required (toggleable)
+  ca.color.hex:
+    default: op
+    description: Allow player to use hexadecimal color if permission is required (toggleable)
+
+
+# soft depend on old name (UnsafeEnchantsPlus), so I can disable it if it is on the same server (old name for this plugin)
+# Also depend to other plugin for compatibility
+softdepend:
+  - UnsafeEnchantsPlus
+  - ProtocolLib
+  - Disenchantment
+  - EnchantsSquared
+  - EcoEnchants
+  - eco
+  - ExcellentEnchants