change the other variables

server/tests/database.test.ts

@@ -10,7 +10,7 @@ it("has the database", async () => {
   });
   await client.connect();
   const query = await client.query(
-    `SELECT * FROM pg_database WHERE datname='${process.env.DB_NAME}'`
+    `SELECT * FROM pg_database WHERE datname='${process.env.POSTGRES_DB}'`
   );
 
   expect(query.rows.length).toBeGreaterThan(0);
@@ -79,10 +79,10 @@ describe("Database Tests", () => {
   ];
   beforeAll(async () => {
     client = new Client({
-      user: process.env.DB_USER,
-      host: process.env.DB_HOST,
-      database: process.env.DB_NAME,
-      password: process.env.DB_PASSWORD,
+      user: process.env.POSTGRES_USER,
+      host: process.env.POSTGRES_HOST,
+      database: process.env.POSTGRES_DB,
+      password: process.env.POSTGRES_PASSWORD,
     });
     await client.connect();
   });