test: add more cases for host option (#3298)

Author: snitin315

test/server/host-option.test.js

@@ -2,6 +2,7 @@
 
 const path = require('path');
 const request = require('supertest');
+const internalIp = require('internal-ip');
 const config = require('../fixtures/simple-config/webpack.config');
 const testServer = require('../helpers/test-server');
 const port = require('../ports-map')['host-option'];
@@ -200,4 +201,68 @@ describe('host option', () => {
 
     afterAll(testServer.close);
   });
+
+  describe('is local-ip', () => {
+    beforeAll((done) => {
+      server = testServer.start(
+        config,
+        {
+          static: {
+            directory: staticDirectory,
+            watch: false,
+          },
+          host: 'local-ip',
+          port,
+        },
+        done
+      );
+      req = request(server.app);
+    });
+
+    it('server address', () => {
+      const address = server.server.address();
+      const networkIP = internalIp.v4.sync();
+
+      expect(address.address).toBe(networkIP);
+      expect(address.port).toBe(port);
+    });
+
+    it('Request to index', (done) => {
+      req.get('/').expect(200, done);
+    });
+
+    afterAll(testServer.close);
+  });
+
+  describe('is local-ipv4', () => {
+    beforeAll((done) => {
+      server = testServer.start(
+        config,
+        {
+          static: {
+            directory: staticDirectory,
+            watch: false,
+          },
+          host: 'local-ipv4',
+          port,
+        },
+        done
+      );
+      req = request(server.app);
+    });
+
+    it('server address', () => {
+      const address = server.server.address();
+      const networkIP = internalIp.v4.sync();
+
+      expect(address.address).toBe(networkIP);
+      expect(address.port).toBe(port);
+    });
+
+    it('Request to index', (done) => {
+      req.get('/').expect(200, done);
+    });
+
+    afterAll(testServer.close);
+  });
 });