diff --git a/server/ws/src/__tests__/remote.test.ts b/server/ws/src/__tests__/remote.test.ts
new file mode 100644
index 0000000000..c514a4fe1b
--- /dev/null
+++ b/server/ws/src/__tests__/remote.test.ts
@@ -0,0 +1,58 @@
+//
+// Copyright © 2020, 2021 Anticrm Platform Contributors.
+// Copyright © 2021 Hardcore Engineering Inc.
+//
+// Licensed under the Eclipse Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License. You may
+// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import { readResponse, serialize } from '@anticrm/platform'
+import { _Token } from '../server'
+import { encode } from 'jwt-simple'
+import WebSocket from 'ws'
+
+describe('server', () => {
+  function connect (): WebSocket {
+    const payload: _Token = {
+      workspace: 'latest'
+    }
+    const token = encode(payload, 'secret')
+    return new WebSocket('wss://pacific-refuge-43514.herokuapp.com/' + token)
+  }
+
+  it('should connect to server', (done) => {
+    const conn = connect()
+    conn.on('open', () => {
+      conn.close()
+      done()
+    })
+  })
+
+  it('should send many requests', (done) => {
+    const conn = connect()
+    const total = 10
+    // const start = Date.now()
+    conn.on('open', () => {
+      for (let i = 0; i < total; i++) {
+        conn.send(serialize({ method: 'findAll', params: ['core:class:Class', {}], id: i }))
+      }
+    })
+    let received = 0
+    conn.on('message', (msg: string) => {
+      readResponse(msg)
+      if (++received === total) {
+        // console.log('resp:', resp, ' Time: ', Date.now() - start)
+        conn.close()
+        done()
+      }
+    })
+  })
+})