add credential

.github/workflows/my-workflow.yml

@@ -15,6 +15,24 @@ jobs:
   install:
     runs-on: ubuntu-latest
 
+    # Service containers to run with `container-job`
+    services:
+      # Label used to access the service container
+      postgres:
+        # Docker Hub image
+        image: postgres
+        # Provide the password for postgres
+        env:
+          POSTGRES_DB: "cicd_database"
+          POSTGRES_USER: "cicd_user"
+          POSTGRES_PASSWORD: "cicd_password"
+        # Set health checks to wait until postgres has started
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -33,3 +51,14 @@ jobs:
       - name: Test test
         if: ${{ inputs.exe_test == 'false' }}
         run: npm test
+
+      - name: Connect to PostgreSQL
+        # Runs a script that creates a PostgreSQL table, populates
+        # the table with data, and then retrieves the data.
+        run: node client.js
+        # Environment variables used by the `client.js` script to create a new PostgreSQL table.
+        env:
+          # The hostname used to communicate with the PostgreSQL service container
+          POSTGRES_HOST: postgres
+          # The default PostgreSQL port
+          POSTGRES_PORT: 5432

test/database.test.ts

@@ -0,0 +1,20 @@
+import { Client } from "pg";
+
+describe("Database", () => {
+  test("connection", async () => {
+    const database = new Client({
+      host: "127.0.0.1",
+      port: 5432,
+      database: "cicd_database",
+      user: "cicd_user",
+      password: "cicd_password",
+    });
+
+    const connected = await database
+      .connect()
+      .then(() => true)
+      .catch(() => false)
+      .finally(async () => await database.end());
+    expect(connected).toBe(true);
+  });
+});