✅ Add tests to verify a new connection. KamandPrompt#140

app.test.js

@@ -0,0 +1,111 @@
+const { assert } = require("chai");
+const io = require("socket.io-client");
+
+const PORT = process.env.PORT || 3000;
+const BAAT_HOST = process.env.BAAT_HOST || "http://localhost";
+
+const SERVER = `${BAAT_HOST}:${PORT}`;
+
+describe("App.js", () => {
+  let socket;
+  let client;
+
+  beforeEach(() => {
+    socket = io(SERVER);
+    client = socket.connect();
+  });
+
+  afterEach(() => {
+    if (client) client.disconnect();
+    if (socket) socket.close();
+  });
+
+  it("should test if client is connected", (done) => {
+    client.on("connect", () => {
+      assert.isTrue(client.connected);
+      client.disconnect();
+      socket.close();
+      done();
+    });
+  });
+
+  it("should test if name is send", (done) => {
+    client.on("connect", () => {
+      assert.isTrue(client.connected);
+
+      client.on("user invalid", (data) => {
+        assert.isObject(data);
+        assert.hasAllKeys(data, "username");
+        assert.strictEqual(data.username, " is invalid.");
+        done();
+      });
+
+      client.emit("set username", undefined);
+    });
+  });
+
+  it("should test if broadcast notify all users (except sender)", (done) => {
+    const localSocket = io(SERVER);
+    const localClient = localSocket.connect();
+
+    client.on("connect", () => {
+      assert.isTrue(client.connected);
+
+      client.emit("set username", "baatCheet");
+
+      client.disconnect();
+      socket.close();
+    });
+
+    localClient.on("connect", () => {
+      assert.isTrue(localClient.connected);
+
+      localClient.on("user joined", (data) => {
+        assert.isObject(data);
+        assert.hasAnyKeys(data, "username");
+        assert.strictEqual(data.username, "baatCheet");
+
+        localClient.disconnect();
+        localSocket.close();
+
+        done();
+      });
+
+    });
+  });
+
+  it("should test if user exist", (done) => {
+    const socket = io(SERVER);
+    const socketTwo = io(SERVER);
+    const client = socket.connect();
+    const clienTwo = socketTwo.connect();
+
+    client.on("connect", () => {
+      assert.isTrue(client.connected);
+
+      client.on("user set", (data) => {
+        assert.isObject(data);
+        assert.hasAnyKeys(data, "username");
+        assert.strictEqual(data.username, "uniqueName");
+      });
+
+      client.emit("set username", "uniqueName");
+    });
+
+    clienTwo.on("connect", () => {
+      assert.isTrue(clienTwo.connected);
+
+      clienTwo.on("user exists", (data) => {
+        assert.strictEqual(data, "uniqueName");
+
+        client.disconnect();
+        clienTwo.disconnect();
+        socket.close();
+        socketTwo.close();
+        done();
+      });
+
+      clienTwo.emit("set username", "uniqueName");
+    });
+  });
+});

package.json

@@ -4,7 +4,9 @@
   "description": "An anonymous chat site",
   "main": "index.js",
   "scripts": {
-    "start": "node app.js"
+    "start": "node app.js",
+    "test:watch": "mocha --watch ./*.test.js",
+    "test": "mocha ./*.test.js"
   },
   "engines": {
     "npm": "3.10.10",
@@ -26,7 +28,7 @@
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "chai-http": "^4.3.0",
-    "mocha": "^8.2.0"
+    "mocha": "^8.2.0",
+    "socket.io-client": "^2.3.1"
   }
 }