From e56e620f549a7b9ad736ceff9547953f6e7f4f42 Mon Sep 17 00:00:00 2001
From: Koen Kanters <koenkanters94@gmail.com>
Date: Mon, 23 Sep 2019 22:24:03 +0200
Subject: [PATCH] Add test case for
 https://github.com/Koenkk/zigbee2mqtt/issues/1997

---
 test/controller.test.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/controller.test.js b/test/controller.test.js
index 6a49d59f..67c8bcf6 100644
--- a/test/controller.test.js
+++ b/test/controller.test.js
@@ -222,6 +222,16 @@ describe('Controller', () => {
         expect(MQTT.publish).toHaveBeenCalledWith("zigbee2mqtt/bridge/log", '{"type":"device_connected","message":{"friendly_name":"bulb"}}', {"retain": false, qos: 0}, expect.any(Function));
     });
 
+    it('Shouldnt crash when two device join events are received', async () => {
+        await controller.start();
+        const device = zigbeeHerdsman.devices.bulb;
+        const payload = {device};
+        zigbeeHerdsman.events.deviceJoined(payload);
+        zigbeeHerdsman.events.deviceJoined(payload);
+        await flushPromises();
+        expect(MQTT.publish).toHaveBeenCalledWith("zigbee2mqtt/bridge/log", '{"type":"device_connected","message":{"friendly_name":"bulb"}}', {"retain": false, qos: 0}, expect.any(Function));
+    });
+
     it('On zigbee deviceInterview started', async () => {
         await controller.start();
         const device = zigbeeHerdsman.devices.bulb;