Add automated integration test for client list API.

- Connects via websocket
- Verifies user list exists
- If GeoIP data is available it will test that the geo property of a
  client is populated.

test/automated/chatusers.test.js

@@ -1,66 +1,118 @@
 const { test } = require('@jest/globals');
 var request = require('supertest');
 request = request('http://127.0.0.1:8080');
+const WebSocket = require('ws');
+const fs = require('fs');
 
 const registerChat = require('./lib/chat').registerChat;
 const sendChatMessage = require('./lib/chat').sendChatMessage;
 
 const testVisibilityMessage = {
-    body: "message " + Math.floor(Math.random() * 100),
-    type: 'CHAT',
+  body: 'message ' + Math.floor(Math.random() * 100),
+  type: 'CHAT',
 };
 
-var userId
-var accessToken
+var userId;
+var accessToken;
 test('can register a user', async (done) => {
-    const registration = await registerChat();
-    userId = registration.id;
-    accessToken = registration.accessToken;
-    done();
+  const registration = await registerChat();
+  userId = registration.id;
+  accessToken = registration.accessToken;
+  done();
 });
 
 test('can send a chat message', async (done) => {
-    sendChatMessage(testVisibilityMessage, accessToken, done);
+  sendChatMessage(testVisibilityMessage, accessToken, done);
 });
 
 test('can disable a user', async (done) => {
     // To allow for visually being able to see the test hiding the
     // message add a short delay.
     await new Promise((r) => setTimeout(r, 1500));
-
-    await request.post('/api/admin/chat/users/setenabled').send({ "userId": userId, "enabled": false })
-    .auth('admin', 'abc123').expect(200);
+  
+    await request
+      .post('/api/admin/chat/users/setenabled')
+      .send({ userId: userId, enabled: false })
+      .auth('admin', 'abc123')
+      .expect(200);
     done();
-});
+  });
 
 test('verify user is disabled', async (done) => {
-    const response = await request.get('/api/admin/chat/users/disabled').auth('admin', 'abc123').expect(200);
-    const tokenCheck = response.body.filter((user) => user.id === userId)
-    expect(tokenCheck).toHaveLength(1);
-    done();
+  const response = await request
+    .get('/api/admin/chat/users/disabled')
+    .auth('admin', 'abc123')
+    .expect(200);
+  const tokenCheck = response.body.filter((user) => user.id === userId);
+  expect(tokenCheck).toHaveLength(1);
+  done();
 });
 
 test('verify messages from user are hidden', async (done) => {
-    const response = await request.get('/api/admin/chat/messages')
+  const response = await request
+    .get('/api/admin/chat/messages')
     .auth('admin', 'abc123')
     .expect(200);
-    const message = response.body.filter(obj => {
-        return obj.user.id === userId;
-    });
-    expect(message[0].hiddenAt).toBeTruthy();
-    done();
+  const message = response.body.filter((obj) => {
+    return obj.user.id === userId;
+  });
+  expect(message[0].hiddenAt).toBeTruthy();
+  done();
 });
 
 test('can re-enable a user', async (done) => {
-    await request.post('/api/admin/chat/users/setenabled').send({ "userId": userId, "enabled": true })
-    .auth('admin', 'abc123').expect(200);
-    done();
+  await request
+    .post('/api/admin/chat/users/setenabled')
+    .send({ userId: userId, enabled: true })
+    .auth('admin', 'abc123')
+    .expect(200);
+  done();
 });
 
 test('verify user is enabled', async (done) => {
-    const response = await request.get('/api/admin/chat/users/disabled').auth('admin', 'abc123').expect(200);
-    const tokenCheck = response.body.filter((user) => user.id === userId)
-    expect(tokenCheck).toHaveLength(0);
+  const response = await request
+    .get('/api/admin/chat/users/disabled')
+    .auth('admin', 'abc123')
+    .expect(200);
+  const tokenCheck = response.body.filter((user) => user.id === userId);
+  expect(tokenCheck).toHaveLength(0);
+
+  done();
+});
+
+test('verify user list is populated', async (done) => {
+    const ws = new WebSocket(
+    `ws://localhost:8080/ws?accessToken=${accessToken}`,
+    {
+      origin: 'http://localhost:8080',
+    }
+  );
+
+  ws.on('open', async function open() {
+    const response = await request
+      .get('/api/admin/chat/clients')
+      .auth('admin', 'abc123')
+      .expect(200);
 
+      expect(response.body.length).toBeGreaterThan(0);
+
+      // Optionally, if GeoIP is configured, check the location property.
+      if (fs.existsSync('../../data/GeoLite2-City.mmdb')) {
+        expect(response.body[0].geo.regionName).toBe('Localhost');
+      } else {
+        console.warn('GeoIP Data is not supplied. Skipping test. See https://owncast.online/docs/viewers/');
+      }
+
+    ws.close();
+  });
+
+  ws.on('error', function incoming(data) {
+    console.error(data);
+    ws.close();
+  });
+
+  ws.on('close', function incoming(data) {
     done();
+  });
+
 });