diff --git a/package.json b/package.json
index ed18d08..669efd3 100644
--- a/package.json
+++ b/package.json
@@ -18,5 +18,8 @@
   },
   "devDependencies": {
     "jest": "^30.2.0"
+  },
+  "scripts": {
+    "test": "jest"
   }
 }
diff --git a/sequelize.js b/sequelize.js
index fd7bb75..870cf35 100644
--- a/sequelize.js
+++ b/sequelize.js
@@ -37,6 +37,9 @@ database.members = sequelize.define('Member', {
     }
 });
 
+/**
+ * Checks Sequelize database connection.
+ */
 database.check_connection = async function() {
         await sequelize.authenticate().then(async (result) => {
             console.log('Connection has been established successfully.');
@@ -47,6 +50,9 @@ database.check_connection = async function() {
         });
 }
 
+/**
+ * Syncs Sequelize models.
+ */
 async function syncModels() {
     await sequelize.sync().then(() => {
         console.log('Models synced successfully.');
diff --git a/tests/bot.test.js b/tests/bot.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/commands.test.js b/tests/commands.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/helpers/import.test.js b/tests/helpers/import.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/helpers/memberHelper.test.js b/tests/helpers/memberHelper.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/helpers/messageHelper.test.js b/tests/helpers/messageHelper.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/helpers/sequelize.test.js b/tests/helpers/sequelize.test.js
new file mode 100644
index 0000000..e69de29
diff --git a/tests/helpers/webhookHelper.test.js b/tests/helpers/webhookHelper.test.js
new file mode 100644
index 0000000..e69de29