mysql-connector: fix tests

src/datasource-zabbix/datasource.js

@@ -13,11 +13,10 @@ import {ZabbixAPIError} from './zabbixAPICore.service.js';
 class ZabbixAPIDatasource {
 
   /** @ngInject */
-  constructor(instanceSettings, templateSrv, alertSrv, dashboardSrv, datasourceSrv, zabbixAlertingSrv, Zabbix) {
+  constructor(instanceSettings, templateSrv, alertSrv, dashboardSrv, zabbixAlertingSrv, Zabbix) {
     this.templateSrv = templateSrv;
     this.alertSrv = alertSrv;
     this.dashboardSrv = dashboardSrv;
-    this.datasourceSrv = datasourceSrv;
     this.zabbixAlertingSrv = zabbixAlertingSrv;
 
     // Use custom format for template variables

src/datasource-zabbix/specs/datasource_specs.js

@@ -15,7 +15,10 @@ describe('ZabbixDatasource', () => {
         password: 'zabbix',
         trends: true,
         trendsFrom: '14d',
-        trendsRange: '7d'
+        trendsRange: '7d',
+        dbConnection: {
+          enabled: false
+        }
       }
     };
     ctx.templateSrv = {};