test: createSocketServer (#510)

Author: attilaorosz

test/unit/createSocketServer.spec.ts

@@ -0,0 +1,40 @@
+import { createSocketServer, SocketController } from '../../src';
+import { testConnection } from '../utilities/testSocketConnection';
+
+describe('createSocketServer', () => {
+  let wsApp: any;
+  const PORT = 8080;
+  const PATH_FOR_CLIENT = `ws://localhost:${PORT}`;
+
+  afterEach(() => {
+    return new Promise(resolve => {
+      if (wsApp)
+        return wsApp.close(() => {
+          resolve(null);
+        });
+      resolve(null);
+    });
+  });
+
+  it('should create socket server without options', async () => {
+    expect.assertions(1);
+    wsApp = await createSocketServer(PORT);
+    expect(await testConnection(PATH_FOR_CLIENT)).toEqual(0);
+  });
+
+  it('should create socket server with empty controllers array in options', async () => {
+    expect.assertions(1);
+    wsApp = await createSocketServer(PORT, { controllers: [] });
+    expect(await testConnection(PATH_FOR_CLIENT)).toEqual(0);
+  });
+
+  it('should create socket server with controllers array in options', async () => {
+    expect.assertions(1);
+
+    @SocketController()
+    class TestController {}
+
+    wsApp = await createSocketServer(PORT, { controllers: [TestController] });
+    expect(await testConnection(PATH_FOR_CLIENT)).toEqual(0);
+  });
+});

test/utilities/testSocketConnection.ts

@@ -0,0 +1,12 @@
+import socketio from 'socket.io-client';
+
+export async function testConnection(path: string) {
+  return await new Promise<number>((resolve, reject) => {
+    const socket = socketio(path, { reconnection: false, timeout: 5000 });
+    socket.on('connect', () => socket.disconnect());
+    socket.on('connect_error', reject);
+    socket.on('disconnect', () => {
+      resolve(0);
+    });
+  });
+}

tsconfig.json

@@ -12,5 +12,5 @@
     "emitDecoratorMetadata": true,
     "forceConsistentCasingInFileNames": true
   },
-  "exclude": ["node_modules", "sample", "**/*.spec.ts", "testing/**"]
+  "exclude": ["node_modules", "sample", "**/*.spec.ts", "testing/**", "test/**"],
 }

tsconfig.spec.json

@@ -6,6 +6,9 @@
     "sourceMap": false,
     "removeComments": true,
     "noImplicitAny": false,
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "rootDir": "./"
   },
   "exclude": ["node_modules"]
 }