From b8dacee9875d11aec637d8ea37fe3bd598722534 Mon Sep 17 00:00:00 2001
From: albert <albert@air.local>
Date: Mon, 28 Jul 2025 11:53:38 +0200
Subject: [PATCH] adds database class and basic tests for jest

---
 src/__tests__/database.test.ts |  6 ++++++
 src/config/database.ts         | 17 +++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 src/__tests__/database.test.ts
 create mode 100644 src/config/database.ts

diff --git a/src/__tests__/database.test.ts b/src/__tests__/database.test.ts
new file mode 100644
index 0000000..79e8580
--- /dev/null
+++ b/src/__tests__/database.test.ts
@@ -0,0 +1,6 @@
+// test temporal para probar que jest funciona
+describe('DatabaseConnection', () => {
+    describe('Singleton Pattern', () => {
+        test('should return the same instance', () => {})
+    })
+})
\ No newline at end of file
diff --git a/src/config/database.ts b/src/config/database.ts
new file mode 100644
index 0000000..c0828e3
--- /dev/null
+++ b/src/config/database.ts
@@ -0,0 +1,17 @@
+// aqui la conexión con MongoDB, usando mongoose o cualquier otro odm que vaya a usar
+// las conexión a bases de datos normalmente deberían ser Singleton para reutilizar la conexión
+// motivo: pues no saturar la base de datos ni saturarla con multiples conexiones
+
+export class DatabaseConnection {
+    private static instance: DatabaseConnection;
+    // private isConnected: boolean = false; // a implementar
+  
+    private constructor() {}
+  
+    public static getInstance(): DatabaseConnection {
+      if (!DatabaseConnection.instance) {
+        DatabaseConnection.instance = new DatabaseConnection();
+      }
+      return DatabaseConnection.instance;
+    }
+}