diff --git a/test/ExternalPathsWatch.test.js b/test/ExternalPathsWatch.test.js
deleted file mode 100644
index aebab79a35..0000000000
--- a/test/ExternalPathsWatch.test.js
+++ /dev/null
@@ -1,91 +0,0 @@
-'use strict';
-
-/* eslint-disable
-  no-unused-vars
-*/
-const path = require('path');
-const webpack = require('webpack');
-const Server = require('../lib/Server');
-const config = require('./fixtures/simple-config/webpack.config');
-
-const contentBasePublic = path.join(
-  __dirname,
-  'fixtures/contentbase-config/public'
-);
-const contentBaseOther = path.join(
-  __dirname,
-  'fixtures/contentbase-config/other'
-);
-const compiler = webpack(config);
-
-describe('Watching external files', () => {
-  let server;
-
-  describe('testing single & multiple external paths', () => {
-    it('Should throw exception (single line)', (done) => {
-      try {
-        // eslint-disable-next-line no-unused-vars
-        server = new Server(compiler, {
-          contentBase: 'https://example.com/',
-          watchContentBase: true,
-        });
-
-        expect(true).toBe(false);
-      } catch (e) {
-        expect(e.message).toBe('Watching remote files is not supported.');
-        compiler.run(() => {
-          done();
-        });
-      }
-    });
-    it('Should throw exception (array)', (done) => {
-      try {
-        // eslint-disable-next-line no-unused-vars
-        server = new Server(compiler, {
-          contentBase: [contentBasePublic, 'https://example.com/'],
-          watchContentBase: true,
-        });
-
-        expect(true).toBe(false);
-      } catch (e) {
-        expect(e.message).toBe('Watching remote files is not supported.');
-        compiler.run(() => {
-          done();
-        });
-      }
-    });
-  });
-
-  describe('testing single & multiple internal paths', () => {
-    it('Should not throw exception (single line)', (done) => {
-      try {
-        // eslint-disable-next-line no-unused-vars
-        server = new Server(compiler, {
-          contentBase: contentBasePublic,
-          watchContentBase: true,
-        });
-
-        compiler.run(() => {
-          done();
-        });
-      } catch (e) {
-        expect(true).toBe(false);
-      }
-    });
-    it('Should not throw exception (array)', (done) => {
-      try {
-        // eslint-disable-next-line no-unused-vars
-        server = new Server(compiler, {
-          contentBase: [contentBasePublic, contentBaseOther],
-          watchContentBase: true,
-        });
-
-        compiler.run(() => {
-          done();
-        });
-      } catch (e) {
-        expect(true).toBe(false);
-      }
-    });
-  });
-});
diff --git a/test/server/contentBase-option.test.js b/test/server/contentBase-option.test.js
index baa4111124..3582251987 100644
--- a/test/server/contentBase-option.test.js
+++ b/test/server/contentBase-option.test.js
@@ -267,6 +267,44 @@ describe('contentBase option', () => {
     });
   });
 
+  describe('testing single & multiple external paths', () => {
+    afterAll((done) => {
+      testServer.close(() => {
+        done();
+      });
+    });
+    it('Should throw exception (string)', (done) => {
+      try {
+        // eslint-disable-next-line no-unused-vars
+        server = testServer.start(config, {
+          port: 9004,
+          contentBase: 'https://example.com/',
+          watchContentBase: true,
+        });
+
+        expect(true).toBe(false);
+      } catch (e) {
+        expect(e.message).toBe('Watching remote files is not supported.');
+        done();
+      }
+    });
+    it('Should throw exception (array)', (done) => {
+      try {
+        // eslint-disable-next-line no-unused-vars
+        server = testServer.start(config, {
+          port: 9003,
+          contentBase: [contentBasePublic, 'https://example.com/'],
+          watchContentBase: true,
+        });
+
+        expect(true).toBe(false);
+      } catch (e) {
+        expect(e.message).toBe('Watching remote files is not supported.');
+        done();
+      }
+    });
+  });
+
   describe('default to PWD', () => {
     beforeAll((done) => {
       jest.spyOn(process, 'cwd').mockImplementation(() => contentBasePublic);