From ea4cf1d05ef8a9c2936ac05287abeccd2cc4c70e Mon Sep 17 00:00:00 2001
From: NecroBread <mariovyordanov@gmail.com>
Date: Mon, 8 Jan 2024 17:41:08 +0200
Subject: [PATCH] add example integration test

---
 .env.example             |  3 ++-
 .env.test                | 12 ++++++++++++
 src/config/db.ts         |  8 +++++---
 src/config/get-config.ts |  8 +-------
 src/index.ts             |  6 +++++-
 tests/setup-tests.ts     |  3 +++
 tests/sign-up.test.ts    | 42 ++++++++++++++++++++++++++++++++++++++++
 7 files changed, 70 insertions(+), 12 deletions(-)
 create mode 100644 .env.test
 create mode 100644 tests/setup-tests.ts
 create mode 100644 tests/sign-up.test.ts

diff --git a/.env.example b/.env.example
index 10806e4..bdf014c 100644
--- a/.env.example
+++ b/.env.example
@@ -8,4 +8,5 @@ DB_NAME="express_app"
 DB_HOST=host.docker.internal
 DB_PORT=6543
 DB_USERNAME=postgres
-DB_PASSWORD=123123
\ No newline at end of file
+DB_PASSWORD=123123
+DB_LOGGING=""
\ No newline at end of file
diff --git a/.env.test b/.env.test
new file mode 100644
index 0000000..e4477e9
--- /dev/null
+++ b/.env.test
@@ -0,0 +1,12 @@
+NODE_ENV=development
+PORT=5000
+ALLOW_ORIGIN="*"
+ALLOW_METHODS="GET,PUT,POST,PATCH,DELETE,HEAD,OPTIONS"
+ALLOW_HEADERS="Content-Type,Cache-Control,Expires"
+JWT_SECRET=SUPERSECRET
+DB_NAME="test_express_app"
+DB_HOST=localhost
+DB_PORT=5432
+DB_USERNAME=postgres
+DB_PASSWORD=password
+DB_LOGGING=""
\ No newline at end of file
diff --git a/src/config/db.ts b/src/config/db.ts
index 2947df2..3659341 100644
--- a/src/config/db.ts
+++ b/src/config/db.ts
@@ -1,4 +1,4 @@
-import { DataSource } from "typeorm";
+import { DataSource, DataSourceOptions } from "typeorm";
 import "reflect-metadata";
 import { Article } from "../features/article/article-entity";
 import { Comment } from "../features/comment/comment-entity";
@@ -7,7 +7,7 @@ import { getConfig } from "./get-config";
 
 const config = getConfig();
 
-export const AppDataSource = new DataSource({
+export const getDbConfig = (): DataSourceOptions => ({
   type: "postgres",
   host: config.DB_HOST,
   port: parseInt(config.DB_PORT),
@@ -15,6 +15,8 @@ export const AppDataSource = new DataSource({
   password: config.DB_PASSWORD,
   database: config.DB_NAME,
   synchronize: config.NODE_ENV === "production" ? false : true,
-  logging: true,
+  logging: !!config.LOGGING,
   entities: [Article, Comment, User],
 });
+
+export const AppDataSource = new DataSource(getDbConfig());
diff --git a/src/config/get-config.ts b/src/config/get-config.ts
index 53bdf1c..dcf6313 100644
--- a/src/config/get-config.ts
+++ b/src/config/get-config.ts
@@ -1,10 +1,3 @@
-import dotenv from "dotenv";
-
-/**
- * Load enviroment variables
- */
-dotenv.config();
-
 export function getConfig() {
   return {
     NODE_ENV: process.env.NODE_ENV,
@@ -18,5 +11,6 @@ export function getConfig() {
     DB_PORT: process.env.DB_PORT,
     DB_PASSWORD: process.env.DB_PASSWORD,
     DB_USERNAME: process.env.DB_USERNAME,
+    LOGGING: process.env.DB_LOGGING,
   };
 }
diff --git a/src/index.ts b/src/index.ts
index 7ad751e..c4b9aae 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -2,7 +2,11 @@ import app from "./app";
 import { AppDataSource } from "./config/db";
 import { getConfig } from "./config/get-config";
 import { AppError } from "./utils/app-error";
-
+import dotenv from "dotenv";
+/**
+ * Load enviroment variables
+ */
+dotenv.config();
 const config = getConfig();
 const port: number = config.PORT ? parseInt(config.PORT) : 5000;
 
diff --git a/tests/setup-tests.ts b/tests/setup-tests.ts
new file mode 100644
index 0000000..8eb996b
--- /dev/null
+++ b/tests/setup-tests.ts
@@ -0,0 +1,3 @@
+import * as dotenv from "dotenv";
+
+dotenv.config({ path: `.env.test`, override: true });
diff --git a/tests/sign-up.test.ts b/tests/sign-up.test.ts
new file mode 100644
index 0000000..e6662a0
--- /dev/null
+++ b/tests/sign-up.test.ts
@@ -0,0 +1,42 @@
+import supertest, { SuperTest, Test } from "supertest";
+import { DataSource } from "typeorm";
+import app from "../src/app";
+import { AppDataSource, getDbConfig } from "../src/config/db";
+import { createDatabase } from "typeorm-extension";
+
+const url = "/api/v1/user/signup";
+let db: DataSource;
+
+describe(`${url}`, () => {
+  let agent: SuperTest<Test>;
+
+  beforeAll(async () => {
+    await createDatabase({ options: getDbConfig(), ifNotExist: true });
+    db = await AppDataSource.initialize();
+    agent = supertest(app);
+  });
+
+  afterAll((done) => {
+    db.dropDatabase().then(() => {
+      db.destroy();
+      done();
+    });
+  });
+
+  test("should sign up successfully when user data is valid", async () => {
+    const test = await agent
+      .post(url)
+      .set("Content-Type", "application/json")
+      .send({
+        username: `john1`,
+        firstName: "John",
+        lastName: "Johnson",
+        password: "123123",
+      })
+      .expect(201);
+
+    expect(test.body.message).toBe("Sign up successful");
+    expect(test.body.data).toBeTruthy();
+    expect(test.body.code).toBe(201);
+  });
+});